A pressure regulation system for a gaseous fluid includes a gaseous fluid supply and a hydraulic fluid supply of a hydraulic fluid. A rail injector is in fluid communication with the gaseous fluid supply and the hydraulic fluid supply and is hydraulically actuated with the hydraulic fluid. A gaseous-fluid rail is in fluid communication with the rail injector and in selective fluid communication with the gaseous fluid supply. A pressure sensor in fluid communication with the gaseous-fluid rail is responsive to gaseous-fluid rail pressure to emit signals representative thereof. A controller communicatively configured with the pressure sensor and the rail injector is programmed to receive the signals representative of the gaseous-fluid rail pressure to determine a measured gaseous-fluid rail pressure; and to actuate the rail injector to inject the gaseous fluid from the gaseous fluid supply into the gaseous-fluid rail as a function of the measured gaseous-fluid rail pressure.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 41/38 - Controlling fuel injection of the high pressure type
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
2.
APPARATUS AND METHOD FOR MANAGING AUTOIGNITION IN AN IN-CYLINDER INJECTOR AND COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE
An apparatus for managing ignition in a chamber of an in-cylinder injector that introduces a fuel directly into a combustion chamber of an internal combustion engine. The chamber includes an injection hole in fluid communication with the combustion chamber. A controller connected with the in-cylinder injector is programmed to actuate the in-cylinder injector to inject the fuel; determine whether autoignition is possible in the chamber as a function of operating parameters; and perform a mitigation strategy to prevent autoignition within the chamber when autoignition is possible.
An apparatus includes a pressure regulator, an in-cylinder fuel injector and a controller programmed to, when fueling with a first gaseous fuel, command the regulator to regulate the pressure of the first gaseous fuel to a first injection pressure; and command the injector to inject within 90 CA° of TDC during a compression stroke an injected quantity of a first gaseous fuel into the combustion chamber at the first injection pressure, and when fueling with a second gaseous fuel, to command the regulator to regulate the pressure of the second gaseous fuel to a second injection pressure; and command the injector to inject within 90 CA° of TDC during the compression stroke an injected quantity of a second injected gaseous fuel.
F02D 19/08 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
A combustion system for an internal combustion engine is provided. The combustion system comprises a cylinder extending along a longitudinal axis, a cylinder head disposed on the cylinder, and a piston configured to reciprocate within the cylinder along the longitudinal axis between a top dead center and a bottom dead center. The piston comprises a piston bowl that comprises a dome tapering to a dome tip. The dome tip comprises a protuberance, an annular protrusion spaced apart from and surrounding the protuberance, and an annular recessed surface disposed between the protuberance and the annular protrusion. Each of the protuberance and the annular protrusion extends upwardly from the annular recessed surface, such that the protuberance, the annular protrusion, and the annular recessed surface define an annular groove therebetween. The combustion system further comprises a combustion chamber defined by the cylinder, the cylinder head, and the piston.
A compressor system comprises a gas source configured to supply a gas, at least one tube comprising at least one inlet and at least one outlet, at least one piston slidably disposed within the at least one tube and dividing the at least one tube into a first chamber and a second chamber, a tank configured to store a hydraulic fluid, a pump configured to pressurize the hydraulic fluid received from the tank and discharge the pressurized hydraulic fluid, a valve configured to control a flow of the pressurized hydraulic fluid from the pump to the second chamber and a flow of the hydraulic fluid from the second chamber to the tank, and a fluid source configured to provide a gaseous fluid different from the hydraulic fluid to the tank, such that the gaseous fluid pressurizes the hydraulic fluid stored within the tank.
F04B 17/00 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
F04B 9/115 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting liquid motors, each acting in one direction
F04B 31/00 - Free-piston pumps specially adapted for elastic fluidsSystems incorporating such pumps
F04B 35/00 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
HPDI Technology Limited Partnership, HPDI Technology Limited Partnership is a Limited partnership organized under the laws of None provided. Must be provided at a later date ()
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
Liquefied gas storage tanks of metal; containers of metal for compressed gas; manually operated metal valves; metal pipes Fuel injection systems for engines; fuel injectors; pumps, namely, fuel pumps for land and marine vehicles for liquid, gaseous and liquified gas fuels; gas vaporizers for converting a fuel from liquid to gaseous form; gaseous fuel accumulators as parts of machines or engines; shut off valves being parts of machines; check valves being parts of machines; pressure regulators being parts of machines; fuel rails for engines; engine fuel filters for vehicle engines; hydraulic control systems for engine fuel pumps for land and marine vehicles; fluid separation apparatus for separation of gas from liquid in an engine fuel system; o-rings being machine parts for engines; gas compressors Electrical control system for engine fuel systems; level switches for monitoring and controlling liquids in tanks and vessels; pressure relief valves; pressure sensors; temperature sensors Vehicle fuel tanks; structural parts of automotive vehicles, namely, tanks for storing gaseous fuels and liquefied fuels Engineering design and engineering services in the field of fuel injection systems, fuel supply systems and fuel storage systems for engines
7.
APPARATUS AND METHOD FOR RECIRCULATING HYDRAULIC FLUID
An apparatus and method for recirculating hydraulic fluid includes commanding a fluid switching valve to a first actuating position where pressurized hydraulic fluid moves a piston; detecting when the piston has completed a first stroke; delay commanding the fluid switching valve to a second actuating position, a bypass valve to a bypass position, or a hydraulic pump to stop pressurizing hydraulic fluid, the piston-bypass valve is open such that hydraulic fluid is fluidly communicated into a sub-circuit through an entry port and through the piston-bypass valve wherein a quantity of hydraulic fluid is flushed out of the sub-circuit through an exit port; and command the fluid switching valve to the second actuating position, the bypass valve to the bypass position, or the hydraulic pump to stop pressurizing the hydraulic fluid.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F15B 21/042 - Controlling the temperature of the fluid
A method of transitioning between operating modes in an engine includes operating the engine in a first operating mode where a main fuel comprises a majority of a total quantity of fuel on an energy basis introduced into a combustion chamber; transitioning to a second operating mode by splitting an introduction of the main fuel into an earlier introduction and a later introduction; where the main fuel is the same fuel in the first and second operating modes; and the main fuel is auto-ignited or the main fuel burns with a partially-premixed combustion mode in the second operating mode.
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02B 43/02 - Engines characterised by means for increasing operating efficiency
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
Liquefied gas storage tanks of metal; containers of metal for compressed gas; manually operated metal valves; metal pipes. Fuel injection systems for engines; fuel injectors; pumps, namely, fuel pumps for land and marine vehicles for liquid, gaseous and liquified gas fuels; gas vaporizers for converting a fuel from liquid to gaseous form; gaseous fuel accumulators as parts of machines or engines; shut off valves being parts of machines; check valves being parts of machines; pressure regulators being parts of machines; fuel rails for engines; engine fuel filters for vehicle engines; hydraulic control systems for engine fuel pumps for land and marine vehicles; fluid separation apparatus for separation of gas from liquid in an engine fuel system; o-rings being machine parts for engines; gas compressors. Electrical control system for engine fuel systems; level switches for monitoring and controlling liquids in tanks and vessels; pressure relief valves; pressure sensors; temperature sensors. Vehicle fuel tanks; structural parts of automotive vehicles, namely, tanks for storing gaseous fuels and liquefied fuels. Engineering design and engineering services in the field of fuel injection systems, fuel supply systems and fuel storage systems for engines.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
Liquefied gas storage tanks of metal; containers of metal for compressed gas; manually operated metal valves; metal pipes. Fuel injection systems for engines; fuel injectors; pumps, namely, fuel pumps for land and marine vehicles for liquid, gaseous and liquified gas fuels; gas vaporizers for converting a fuel from liquid to gaseous form; gaseous fuel accumulators as parts of machines or engines; shut off valves being parts of machines; check valves being parts of machines; pressure regulators being parts of machines; fuel rails for engines; engine fuel filters for vehicle engines; hydraulic control systems for engine fuel pumps for land and marine vehicles; fluid separation apparatus for separation of gas from liquid in an engine fuel system; o-rings being machine parts for engines; gas compressors. Electrical control system for engine fuel systems; level switches for monitoring and controlling liquids in tanks and vessels; pressure relief valves; pressure sensors; temperature sensors. Vehicle fuel tanks; structural parts of automotive vehicles, namely, tanks for storing gaseous fuels and liquefied fuels. Engineering design and engineering services in the field of fuel injection systems, fuel supply systems and fuel storage systems for engines.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
Liquefied gas storage tanks of metal; containers of metal for compressed gas; manually operated metal valves; metal pipes. Fuel injection systems for engines; fuel injectors; pumps, namely, fuel pumps for land and marine vehicles for liquid, gaseous and liquified gas fuels; gas vaporizers for converting a fuel from liquid to gaseous form; gaseous fuel accumulators as parts of machines or engines; shut off valves being parts of machines; check valves being parts of machines; pressure regulators being parts of machines; fuel rails for engines; engine fuel filters for vehicle engines; hydraulic control systems for engine fuel pumps for land and marine vehicles; fluid separation apparatus for separation of gas from liquid in an engine fuel system; o-rings being machine parts for engines; gas compressors. Electrical control system for engine fuel systems; level switches for monitoring and controlling liquids in tanks and vessels; pressure relief valves; pressure sensors; temperature sensors. Vehicle fuel tanks; structural parts of automotive vehicles, namely, tanks for storing gaseous fuels and liquefied fuels. Engineering design and engineering services in the field of fuel injection systems, fuel supply systems and fuel storage systems for engines.
12.
APPARATUS AND METHOD FOR REGULATING GASEOUS FUEL PRESSURE AND MITIGATING EMISSIONS IN AN INTERNAL COMBUSTION ENGINE SYSTEM
An engine fueled with a gaseous fuel includes a storage vessel storing the gaseous fuel in the gas state. For an engine speed and engine load, a storage-pressure brake thermal efficiency (where an injection pressure equals the storage pressure) is compared to a second-pressure brake thermal efficiency (where the injection pressure is equal to the second pressure and based on a parasitic energy cost of pressurizing the gaseous fuel from the storage pressure to the second pressure). The gaseous fuel is pressurized from the storage pressure to the second pressure when the second-pressure brake thermal efficiency is greater than the storage-pressure brake thermal efficiency.
A pressure regulator for regulating a differential pressure between a first fluid pressure of a first fluid and a second fluid pressure of a second fluid is disclosed. The pressure regulator has a valve between a regulator body and a valve member. The valve member is moveably disposed within a first longitudinal bore of the regulator body between a first-fluid-pressure sensing chamber and a second-fluid-pressure sensing chamber. The first-fluid-pressure sensing chamber is in fluid communication with the first-fluid inlet and the second-fluid-pressure sensing chamber is in fluid communication with the second-fluid port. The valve member is moveable between a closed position where a cross-sectional flow area through the valve is below a predetermined level and an open position where the cross-sectional flow area through the valve is above the predetermined level.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/08 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
G05D 16/10 - Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
14.
APPARATUS AND METHOD FOR A COMPRESSION IGNITION, DIRECT INJECTION, INTERNAL COMBUSTION ENGINE
A method for operating an internal combustion engine including introducing a pilot quantity of a gaseous fuel directly into a combustion chamber of the internal combustion engine; and introducing a main quantity of the gaseous fuel directly into the combustion chamber. The pilot quantity auto¬ ignites due to a temperature and a pressure within the combustion chamber and bums in a diffusion combustion mode, and the main quantity ignites due to combustion of the pilot quantity and the main quantity bums in the diffusion combustion mode.
F02B 7/06 - Engines characterised by the fuel-air charge being ignited by compression ignition of an additional fuel the fuel in the charge being gaseous
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
A fuel injector for an internal combustion engine is provided. The fuel injector comprises a first valve needle arranged to control injection of a first fuel and extending along an injector longitudinal axis. The fuel injector further comprises a first control chamber associated with the first valve needle. The fuel injector further comprises an actuator assembly axially extending from an upper surface to an opposing lower surface along an actuator longitudinal axis. The actuator assembly comprises a first control valve arranged to vary the pressure of a control fluid in the first control chamber so as to cause opening and closing movements of the first valve needle along the injector longitudinal axis.
F02M 47/02 - Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves, and having means for periodically releasing that closing pressure
F02M 61/08 - Fuel injectors not provided for in groups or having valves the valves opening in direction of fuel flow
F02M 61/10 - Other injectors with elongated valve bodies, i.e. of needle-valve type
F02M 61/18 - Injection nozzles, e.g. having valve-seats
16.
APPARATUS AND METHOD FOR AN INJECTION CHAMBER IN A FUEL INJECTOR
A fuel injector includes an injection chamber downstream from an injection valve, the injection chamber defined by an outer surface of a valve member and an inner surface of a nozzle body. A tapered portion of the outer surface of the first valve member within the injection chamber tapers radially outwardly in an axial direction relative to a longitudinal axis of the fuel injector from the injection valve to the injection passageway whereby a cross-sectional flow area in the injection chamber is greater by the injection valve compared to by the injection passageway.
F02M 61/06 - Fuel injectors not provided for in groups or having valves the valves being furnished at seated ends with pintle- or plug-shaped extensions
A fuel injector for directly introducing a fuel into a combustion chamber of an internal combustion engine is provided. The fuel injector comprises a nozzle body comprising an outer nozzle body surface, an inner nozzle body surface, and a plurality of main discharge orifices. The fuel injector further comprises a valve comprising a valve seat and a valve member. At least a portion of an outer valve member surface of the valve member and a portion of the inner nozzle body surface define a fuel cavity therebetween. The fuel injector has at least one thermal mitigation feature comprising an orifice axis of each main discharge orifice does not intersect with a central longitudinal axis of the valve member and/or a thermal barrier coating disposed on at least the portion of the outer valve member surface and the portion of the inner nozzle body surface defining the fuel cavity.
F02M 61/16 - Details not provided for in, or of interest apart from, the apparatus of groups
F02M 63/00 - Other fuel-injection apparatus having pertinent characteristics not provided for in groups or Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups or
18.
APPARATUS AND METHOD FOR SUPPLYING GASEOUS FUEL TO AND OPERATING AN INTERNAL COMBUSTION ENGINE
An apparatus for supplying a gaseous fuel and operating an internal combustion engine includes a supply storing the gaseous fuel as a compressed gas; a compressor selectively pressurizing the gaseous fuel received from the supply; a pressure regulator receiving the gaseous fuel selectively from the supply or from the compressor; a gaseous-fuel rail fluidly receiving the gaseous fuel from the pressure regulator; an in-cylinder injector receiving the gaseous fuel from the gaseous-fuel rail and directly introducing the gaseous fuel into a combustion chamber; the in-cylinder injector commanded in a first operating mode when the gaseous-fuel rail pressure is equal to or greater than a desired injection pressure; and the in-cylinder injector commanded in a second operating mode when the gaseous-fuel rail pressure is less than the desired injection pressure.
An apparatus and method for pressurizing and supplying a gaseous fuel to an engine includes a first supply and a second supply of the gaseous fuel stored as a compressed gas. A pressure regulator regulates a pressure of the gaseous fuel fluidly received from the first supply or the second supply, a compressor pressurizes the gaseous fuel fluidly received from the first supply or the second supply, and an accumulator fluidly receives gaseous fuel from the compressor and the pressure regulator. A supply-select valve apparatus is in fluid communication with the first supply and the second supply and is actuatable to fluidly connect the first supply with the compressor or the pressure regulator, and to fluidly connect the second supply with the compressor or the pressure regulator.
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Liquefied gas storage tanks of metal; containers of metal for compressed gas; manually operated metal valves; metal pipes.
(2) Fuel injection systems for engines; fuel injectors; pumps, namely, fuel pumps for land and marine vehicles for liquid, gaseous and liquified gas fuels; gas vaporizers for converting a fuel from liquid to gaseous form; gaseous fuel accumulators as parts of machines or engines; shut off valves being parts of machines; check valves being parts of machines; pressure regulators being parts of machines; fuel rails for engines; engine fuel filters for vehicle engines; hydraulic control systems for engine fuel pumps for land and marine vehicles; fluid separation apparatus for separation of gas from liquid in an engine fuel system; o-rings being machine parts for engines; gas compressors.
(3) Electrical control system for engine fuel systems; level switches for monitoring and controlling liquids in tanks and vessels; pressure relief valves; pressure sensors; temperature sensors.
(4) Vehicle fuel tanks; structural parts of automotive vehicles, namely, tanks for storing gaseous fuels and liquefied fuels. (1) Engineering design and engineering services in the field of fuel injection systems, fuel supply systems and fuel storage systems for engines.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Liquefied gas storage tanks of metal; containers of metal for compressed gas; manually operated metal valves; metal pipes.
(2) Fuel injection systems for engines; fuel injectors; pumps, namely, fuel pumps for land and marine vehicles for liquid, gaseous and liquified gas fuels; gas vaporizers for converting a fuel from liquid to gaseous form; gaseous fuel accumulators as parts of machines or engines; shut off valves being parts of machines; check valves being parts of machines; pressure regulators being parts of machines; fuel rails for engines; engine fuel filters for vehicle engines; hydraulic control systems for engine fuel pumps for land and marine vehicles; fluid separation apparatus for separation of gas from liquid in an engine fuel system; o-rings being machine parts for engines; gas compressors.
(3) Electrical control system for engine fuel systems; level switches for monitoring and controlling liquids in tanks and vessels; pressure relief valves; pressure sensors; temperature sensors.
(4) Vehicle fuel tanks; structural parts of automotive vehicles, namely, tanks for storing gaseous fuels and liquefied fuels. (1) Engineering design and engineering services in the field of fuel injection systems, fuel supply systems and fuel storage systems for engines.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Liquefied gas storage tanks of metal; containers of metal for compressed gas; manually operated metal valves; metal pipes.
(2) Fuel injection systems for engines; fuel injectors; pumps, namely, fuel pumps for land and marine vehicles for liquid, gaseous and liquified gas fuels; gas vaporizers for converting a fuel from liquid to gaseous form; gaseous fuel accumulators as parts of machines or engines; shut off valves being parts of machines; check valves being parts of machines; pressure regulators being parts of machines; fuel rails for engines; engine fuel filters for vehicle engines; hydraulic control systems for engine fuel pumps for land and marine vehicles; fluid separation apparatus for separation of gas from liquid in an engine fuel system; o-rings being machine parts for engines; gas compressors.
(3) Electrical control system for engine fuel systems; level switches for monitoring and controlling liquids in tanks and vessels; pressure relief valves; pressure sensors; temperature sensors.
(4) Vehicle fuel tanks; structural parts of automotive vehicles, namely, tanks for storing gaseous fuels and liquefied fuels. (1) Engineering design and engineering services in the field of fuel injection systems, fuel supply systems and fuel storage systems for engines.
23.
Apparatus and method for injecting a pilot fuel into an internal combustion engine
An apparatus and method for injection of a pilot fuel into an internal combustion engine includes a variety of steady state, transient and other techniques to reduce an injection quantity of the pilot fuel and/or a carbon content of the pilot fuel.
F02D 41/38 - Controlling fuel injection of the high pressure type
F02D 35/02 - Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 41/40 - Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
24.
INTERNAL COMBUSTION ENGINE AND METHOD OF OPERATING THEREOF
An internal combustion engine includes a cylinder, a cylinder head disposed on the cylinder, a piston movable within the cylinder, and a combustion chamber defined by the cylinder, the cylinder head, and the piston. A fuel injector for directly introducing the gaseous fuel into the combustion chamber extends partially through the cylinder head into the combustion chamber. A pilot injector for directly introducing a pilot fuel into the combustion chamber is spaced apart from the fuel injector and extends partially through the cylinder head into the combustion chamber.
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
A compressor system includes a compressor, a storage vessel, and a control valve. The compressor includes a cylinder having a first end and a second end opposing the first end, a piston slidably disposed within the cylinder, a compression chamber defined between the first end and the piston, and a driving chamber defined between the piston and the second end. The compression chamber receives a gas therein. The storage vessel is in fluid communication with the driving chamber and is configured to store the gas which leaks from the compression chamber to the driving chamber. The control valve is disposed in fluid communication with the storage vessel and the compression chamber and is configured to control a flow of the gas from the storage vessel to the compression chamber.
F02B 43/02 - Engines characterised by means for increasing operating efficiency
F02B 39/16 - Other safety measures for, or other control of, pumps
F02B 77/08 - Safety, indicating, or supervising devices
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F16K 3/34 - Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
F16K 17/18 - Safety valvesEqualising valves opening on surplus pressure on either side
26.
Apparatuses and methods for fuel injection and ignition in an internal combustion engine
An improved apparatus for injecting and igniting fuel in an internal combustion engine includes a nozzle with a bore and a tip at a distal end. The bore includes a longitudinal axis and an annular valve seat. A needle reciprocates within the bore and in combination with the annular valve seat forms an injection valve where in a closed position the needle abuts the annular valve seat and in an open position the needle is spaced apart from the annular valve seat. A retainer axially protrudes from the tip of the nozzle along the longitudinal axis thereof whereby an annular mixing space extends between the retainer and the tip of the nozzle. There is an igniter secured to the nozzle that includes a positive-ignition source forming an ignition zone within a portion of the annular mixing space. Nozzle arrangements include those with both pilot hole and main holes in the nozzle extending between the plenum and outside the nozzle where the main hole longitudinal axis bypasses the retainer and a pilot fuel jet from the pilot hole(s) is retained and redirected such that an ignitable fuel-air mixture is formed within the annular mixing space. Nozzle arrangements also include nozzles with a plurality of main holes and no separate pilot holes in which the main longitudinal axis bypasses the retainer such that a main fuel jet is scraped by the retainer and scraped fuel is retained and redirected such that an ignitable fuel-air mixture is formed within the annular mixing space. The igniter is actuated to ignite the ignitable fuel-air mixtures.
A shielded igniter includes a positive-ignition source surrounded by a shield defining a shielded space. The shield includes an inlet hole, a first outlet hole and a second outlet hole. The shielded igniter is disposed within a cylinder of an internal combustion engine adjacent a fuel injector such that a first fuel jet is directed towards the inlet hole such that fuel enters the inlet hole and forms an ignitable fuel-air mixture. The positive-ignition source ignites the fuel within the shielded space such that combustion products exit the first and second outlet holes on a trajectory tangential to a circumference axisymmetric with a longitudinal axis of the fuel injector. Combustion products emanating from the first and second outlet holes ignite respective second and third fuel jets adjacent the first fuel jet on opposite sides thereof.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
Liquefied gas storage tanks of metal; containers of metal for compressed gas; manually operated metal valves; metal pipes Fuel injection systems for engines; fuel injectors; pumps, namely, fuel pumps for land and marine vehicles for liquid, gaseous and liquified gas fuels; gas vaporizers being machine parts for converting a fuel from liquid to gaseous form; gaseous fuel accumulators as parts of machines or engines; shut off valves being parts of machines; check valves being parts of machines; pressure regulators being parts of machines; fuel rails for engines; engine fuel filters for vehicle engines; hydraulic control systems for engine fuel pumps for land and marine vehicles; fluid separation apparatus for separation of gas from liquid in an engine fuel system; o-rings being machine parts for engines; gas compressors Electrical control system for engine fuel systems; level switches for monitoring and controlling liquids in tanks and vessels; pressure relief valves for relieving pressure in fuel tanks, fuel lines and fuel injection systems; pressure sensors; temperature sensors Vehicle fuel tanks; structural parts of automotive vehicles, namely, tanks for storing gaseous fuels and liquefied fuels Engineering design and engineering services in the field of fuel injection systems, fuel supply systems and fuel storage systems for engines
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
Liquefied gas storage tanks of metal; containers of metal for compressed gas; manually operated metal valves; metal pipes. Fuel injection systems for engines; fuel injectors; pumps for liquid, gaseous and liquified gas fuels; vaporizers for converting a fuel from liquid to gaseous form; gaseous fuel accumulators; pressure relief valves; shut off valves; check valves; pressure regulators; fuel rails for engines; engine fuel filters; hydraulic control systems for engine fuel systems; fluid separation apparatus for separation of gas from liquid in an engine fuel system; o-rings being machine parts for engines; gas compressors. Electrical control system for engine fuel systems; level switches for monitoring and controlling liquids in tanks and vessels; pressure sensors; temperature sensors. Vehicle fuel tanks; structural parts of automotive vehicles, namely, tanks for storing gaseous fuels and liquefied fuels. Engineering design and engineering services in the field of fuel injection systems, fuel supply systems and fuel storage systems for engines.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Liquefied gas storage tanks of metal; containers of metal for compressed gas; manually operated metal valves; metal pipes.
(2) Fuel injection systems for engines; fuel injectors; pumps, namely, fuel pumps for land and marine vehicles for liquid, gaseous and liquified gas fuels; gas vaporizers for converting a fuel from liquid to gaseous form; gaseous fuel accumulators as parts of machines or engines; shut off valves being parts of machines; check valves being parts of machines; pressure regulators being parts of machines; fuel rails for engines; engine fuel filters for vehicle engines; hydraulic control systems for engine fuel pumps for land and marine vehicles; fluid separation apparatus for separation of gas from liquid in an engine fuel system; o-rings being machine parts for engines; gas compressors.
(3) Electrical control system for engine fuel systems; level switches for monitoring and controlling liquids in tanks and vessels; pressure relief valves; pressure sensors; temperature sensors.
(4) Vehicle fuel tanks; structural parts of automotive vehicles, namely, tanks for storing gaseous fuels and liquefied fuels. (1) Engineering design and engineering services in the field of fuel injection systems, fuel supply systems and fuel storage systems for engines.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
Liquefied gas storage tanks of metal; metal containers for compressed gas; manually operated metal valves; metal pipes Fuel injection systems for engines; fuel injectors; pumps, namely, fuel pumps for land and marine vehicles for liquid, gaseous and liquified gas fuels; gas vaporizers for converting a fuel from liquid to gaseous form; gaseous fuel accumulators as parts of machines or engines; shut off valves being parts of machines; check valves being parts of machines; pressure regulators being parts of machines; fuel rails for engines; engine fuel filters for vehicle engines; hydraulic control systems for engine fuel pumps for land and marine vehicles; fluid separation apparatus for separation of gas from liquid in an engine fuel system; o-rings being machine parts for engines; gas compressors Electrical control system for engine fuel systems; level switches for monitoring and controlling liquids in tanks and vessels; pressure relief valves for relieving pressure in fuel injection systems; pressure sensors; temperature sensors Vehicle fuel tanks; structural parts of automotive vehicles, namely, tanks for storing gaseous fuels and liquefied fuels Engineering design and engineering services in the field of fuel injection systems, fuel supply systems and fuel storage systems for engines
A fluid storage and pressurizing assembly includes a storage receptacle and a pump assembly. The storage receptacle includes an inner vessel defining a cryogen space for storing a fluid at a storage pressure and a cryogenic temperature, an outer vessel surrounding the inner vessel, and an insulated space between the inner vessel and the outer vessel, and a pump assembly. The pump assembly includes a pump immersed in the cryogen space having an inlet for receiving a quantity of fluid from the cryogen space, and an outlet for delivering the fluid therefrom. The pump assembly further includes a pump drive unit for driving the immersed pump, the pump drive unit being at least partially disposed within a space defined by the storage receptacle.
F17C 5/02 - Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases for filling with liquefied gases
F17C 9/00 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
F04B 23/02 - Pumping installations or systems having reservoirs
F04B 15/08 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
A cryogenic storage vessel having an inner vessel defining a cryogen space; an outer vessel spaced apart from and surrounding the inner vessel, defining a thermally insulating space between the inner vessel and the outer vessel; and a receptacle defining passages for delivery of liquefied gas from the cryogen space to outside the cryogenic storage vessel. The receptacle has an elongated outer sleeve defining an interior space in fluid communication with the thermally insulating space that is sealed from the cryogen space; an elongated inner sleeve extending into the interior space defined by the elongated outer sleeve defining an inner receptacle space that is fluidly isolated from the thermally insulating space; and a collar extending around an inner surface of the elongated inner sleeve which seals against a cooperating surface of a pump assembly when a pump assembly is installed in the cryogenic storage vessel thereby dividing a warm end from a cold end of the receptacle. A motor for driving the pump can be installed within the cryogenic storage vessel.
An improved filter apparatus for a cryogenic fluid includes a filter and a support. The filter includes a mesh having an internal space and an open end. The support is associated with the mesh for maintaining a volume of the internal space above a predetermined value. In operation cryogenic fluid enters the internal space through the mesh and exits the open end thereof.
F04B 37/08 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups for evacuating by thermal means by condensing or freezing, e.g. cryogenic pumps
B01D 35/027 - Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs
B01D 29/19 - Supported filter elements arranged for inward flow filtration on solid frames with surface grooves or the like
B01D 29/21 - Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
F04B 15/08 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
F17C 1/00 - Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
36.
Method for delivering a fluid stored in liquefied form to an end user in gaseous form
A system and method is disclosed for storing a fluid in a storage vessel in liquefied form and delivering it in gaseous form to an end user through a supply line. The system comprises a pressure relief circuit for returning the fluid from the supply line to the vessel when predetermined conditions are met. The pressure relief circuit comprises a return line connected to the supply line and the storage vessel, a diversion line to divert the fluid elsewhere and a switching device operable to direct the fluid to either one of the lines, as a function of predetermined conditions.
A technique is provided to more easily measure a distance of a target from a ground surface or a ceiling surface. A surveying device has a laser scanner part and a total station in a unitary manner. The surveying device includes a TS functional part, a laser scanner part, and a distance calculator. The TS functional part positions a reflective prism by using laser light. The laser scanner part performs laser scanning of a ground surface along a vertical plane containing the reflective prism and an optical axis for the laser positioning to obtain a laser scanned point cloud. The distance calculator calculates a distance between the ground surface and the reflective prism on the basis of one or multiple points, which are extracted from the laser scanned point cloud and in proximity to a straight line connecting the reflective prism and a specific plane.
A flange for a pump comprises first and second faces and a passageway for cryogenic fluid flow extending from the first face to the second face and at least one of (1) the passageway is for a pipe and comprises a first portion of a first diameter and a second portion of a second diameter greater than the first diameter, wherein when the pipe has an outer diameter that is smaller than the second diameter a gap is formed between the pipe and the passageway where the pipe passes through the second portion; and (2) a first annular groove in one of the first face and the second face and extending around the passageway, wherein the first annular groove in cooperation with the passageway forms a bellows. The gap and bellows increase the thermal resistance between the passageway and the flange, and the bellows allows for flexure during thermal contractions of the flange reducing thermal stress on welded fluid seals.
F04B 15/08 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
F04B 37/08 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups for evacuating by thermal means by condensing or freezing, e.g. cryogenic pumps
F04B 15/06 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Hydraulically actuated gaseous fuel injectors required a relatively small pressure bias between hydraulic fluid and gaseous fuel to be able to open and to reduce hydraulic fluid contamination of the gaseous fuel. An improved hydraulically actuated gaseous fuel injector includes an injection valve in fluid communication with a gaseous fuel inlet and includes a valve member reciprocatable within a fuel injector body between a closed position and an open position. There is a lift chamber in fluid communication with a hydraulic fluid inlet such that hydraulic fluid pressure in the lift chamber contributes to an opening force applied to the valve member. A control chamber is in fluid communication with the hydraulic fluid inlet such that hydraulic fluid pressure in the control chamber contributes to a closing force applied to the valve member. A control valve is operable to reduce hydraulic fluid pressure in the control chamber such that the opening force is greater than the closing force and the valve member moves to the open position.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02M 47/02 - Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves, and having means for periodically releasing that closing pressure
F02B 7/02 - Engines characterised by the fuel-air charge being ignited by compression ignition of an additional fuel the fuel in the charge being liquid
F02M 61/04 - Fuel injectors not provided for in groups or having valves
40.
Pressure regulating modules with controlled leak paths
A pressure regulating module for regulating the pressure of a first fluid using a reference pressure of a second fluid. A pressure transfer assembly including a piston slidably disposed within a cylinder bore between a control fluid chamber and a reference fluid chamber is dimensioned to provide a predefined radial clearance between at least a portion of the outer side wall and the inner circumferential surface of the housing along a predefined axial length of the main body. The predefined radial clearance and predefined axial length are dimensioned to control the flow rate and amount of fluid along one or more fluid communication passages formed between at least a portion of the piston and the housing inner circumferential surface from one or more high pressure fluid zones to a lower pressure fluid zone which can include a leak and/or weep orifice directing fluid to a drain and/or vent circuit.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02M 43/00 - Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
F16K 31/122 - Operating meansReleasing devices actuated by fluid the fluid acting on a piston
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
A method for deposit mitigation in a gaseous fuel injector that introduces a gaseous fuel through a gaseous fuel orifice directly into a combustion chamber of an internal combustion engine includes at least one of a) reducing the ago length of the gaseous fuel orifice by substantially between 10% to 50% of a previous length of a previous gaseous fuel orifice showing deposit accumulation above a predetermined threshold; b) providing the gaseous fuel orifice with an inwardly and substantially linearly tapering profile; c) determining deposit mitigation is needed; and performing at least one of the following deposit mitigation techniques i) increasing gaseous fuel injection pressure wherein deposit accumulation is reduced during fuel injection; and ii) decreasing gaseous fuel temperature wherein a rate of deposit accumulation is reduced; and d) injecting compressed air through the gaseous fuel orifice during shutdown of the internal combustion engine; whereby torque loss in the internal combustion engine due to deposit accumulation in the gaseous fuel orifice is reduced below a predetermined value.
F02D 41/22 - Safety or indicating devices for abnormal conditions
F02D 41/40 - Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 19/08 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
B08B 5/02 - Cleaning by the force of jets, e.g. blowing-out cavities
B08B 17/06 - Preventing deposition of fouling or of dust by giving articles subject to fouling a special shape for arrangement
F02M 25/14 - Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding anti-knock agents, not provided for in groups
F02M 53/04 - Injectors with heating, cooling, or thermally-insulating means
F02D 41/38 - Controlling fuel injection of the high pressure type
F02B 77/04 - Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines
A fuel injector for an internal combustion engine is disclosed. The fuel injector is particularly suitable for use as a dual fuel injector, and comprises a generally tubular outer valve needle, an inner valve needle slidably received in the outer valve needle, and a nozzle body assembly comprising a tip part and a needle guide part. The tip part defines a seating region for the outer valve needle, and the needle guide part comprises a guide bore for slidably receiving the outer valve needle. In one embodiment, a lower bore region of the needle guide part defines a cavity around the outer valve needle which houses a biasing spring for the outer valve needle and a fuel. A collar for seating the biasing spring can be dimensioned to allow free flow of the fuel from the cavity into an annular accumulator volume defined between the outer valve needle and the bore of the tip part.
F02M 61/12 - Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
F02M 47/02 - Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves, and having means for periodically releasing that closing pressure
F02M 63/00 - Other fuel-injection apparatus having pertinent characteristics not provided for in groups or Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups or
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
43.
High pressure fluid control system and method of controlling pressure bias in an end use device
Disclosed are a fluid control system and method for controlling delivery of two variable pressure fluids to maintain a pressure bias between the two fluids within an end use device. The system employs an actively controlled vent valve which can be integrated into a fluid control module in preferred embodiments and is actuated to an open position to decrease fluid pressure in a first fluid supply line when a determined pressure differential reversal exceeds a predetermined threshold pressure differential reversal. The disclosed system is particularly useful in a high pressure direct injection (HPDI) multi-fueled engine system where the first fluid is a gaseous fuel and the second fluid is a liquid fuel. The fluid control system and method of controlling it provide for improved control of venting along with protecting system components from high back pressure and cross contamination of fluids.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02M 43/00 - Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
A fuel injector for an internal combustion engine is disclosed. The fuel injector is installable in a cylinder head bore of a cylinder head of the engine and has a body region arranged to be received within the cylinder head bore, and a head region arranged to extend outside the cylinder head bore to protrude from the cylinder head when the injector is installed in the cylinder head bore. The injector includes a first valve needle arranged to control the injection of a gaseous fuel from a first outlet, a second valve needle arranged to control the injection of a liquid fuel from a second outlet, a gaseous fuel inlet for admitting the gaseous fuel to the injector, and a liquid fuel inlet port for admitting the liquid fuel to the injector. The gaseous fuel inlet is disposed in the body region of the injector, and the liquid fuel inlet port is disposed in the head region of the injector. The injector can also include an internal accumulator volume so that an external fuel rail is not necessary.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
F02M 47/02 - Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves, and having means for periodically releasing that closing pressure
F02M 63/00 - Other fuel-injection apparatus having pertinent characteristics not provided for in groups or Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups or
F02M 61/10 - Other injectors with elongated valve bodies, i.e. of needle-valve type
F02M 61/14 - Arrangements of injectors with respect to enginesMounting of injectors
F02M 61/16 - Details not provided for in, or of interest apart from, the apparatus of groups
A multi-fuel rail apparatus for an internal combustion engine communicates fuel from 10 a first fuel source and a second fuel source to a plurality of fuel injectors. Each fuel injector receives fuel from the multi-fuel rail apparatus through a branch connection for each fuel. The multi fuel rail apparatus has a first elongate member including a first longitudinal bore spaced apart from a second longitudinal bore and first and second fuel inlets for fluidly communicating first and second fuels into the first and 15 second longitudinal bores respectively. There is a branch connecting structure for each fuel injector along the first elongate member for fluidly connecting the first and second longitudinal bores with respective branch connections from respective fuel injectors.
F02M 63/02 - Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injectorFuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectorsFuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02M 55/02 - Conduits between injection pumps and injectors
F02M 43/00 - Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
F02D 19/08 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
46.
Cryogenic tank assembly with a pump drive unit disposed within fluid storage vessel
A fluid storage and pressurizing assembly includes a storage receptacle and a pump assembly. The storage receptacle includes an inner vessel defining a cryogen space for storing a fluid at a storage pressure and a cryogenic temperature, an outer vessel surrounding the inner vessel, and an insulated space between the inner vessel and the outer vessel, and a pump assembly. The pump assembly includes a pump having an inlet disposed within the cryogen space for receiving a quantity of the fluid from the cryogen space, and an outlet for delivering the fluid therefrom, and a pump drive unit for driving the pump, the pump drive unit being at least partially disposed within a space defined by the storage receptacle.
It is a challenge to reduce unburned hydrocarbon emissions for gaseous fuelled engines, especially at low engine load conditions, to meet demanding emission regulation targets. A method for reducing unburned hydrocarbon emissions in a lean-burn internal combustion engine that is fuelled with a gaseous fuel comprises adjusting the timing for closing of an intake valve as a function of engine operating conditions by one of advancing timing for closing of the intake valve and closing the intake valve earlier during an intake stroke; and retarding timing for closing of the intake valve and closing the intake valve later during a compression stroke. The volumetric efficiency of the internal combustion engine is reduced and unburned hydrocarbon emissions are maintained below a predetermined level.
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
48.
Cryogenic pump operation for controlling heat exchanger discharge temperature
Gaseous fuel downstream of a heat exchanger can be too cold for fuel system components when the temperature of engine coolant employed as a working fluid in the heat exchanger is too low to elevate gaseous fuel temperature, and it is possible for the engine coolant to freeze. A method of operating a cryogenic pump for controlling discharge temperature of a heat exchanger that vaporizes a process fluid received from the cryogenic pump with heat from a working fluid, where the cryogenic pump includes a piston reciprocatable in a cylinder between a proximate cylinder head and a distal cylinder head, includes monitoring at least one of process fluid temperature and working fluid temperature; retracting the piston during an intake stroke from the proximate cylinder head to the distal cylinder head; and extending the piston in a plurality of incremental discharge strokes until the piston travels from the distal cylinder head back to the proximate cylinder head. At least one of the number of incremental discharge strokes, a length of incremental discharge strokes and a rest period between incremental discharge strokes is selected such that at least one of the process fluid temperature and working fluid temperature is maintained above a predetermined level.
F04B 37/08 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups for evacuating by thermal means by condensing or freezing, e.g. cryogenic pumps
F02M 21/06 - Apparatus for de-liquefying, e.g. by heating
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F01P 9/02 - Cooling by evaporation, e.g. by spraying water on to cylinders
Hydraulically actuated gaseous fuel injectors required a relatively small pressure bias between hydraulic fluid and gaseous fuel to be able to open and to reduce hydraulic fluid contamination of the gaseous fuel. An improved hydraulically actuated gaseous fuel injector includes an injection valve in fluid communication with a gaseous fuel inlet and includes a valve member reciprocatable within a fuel injector body between a closed position and an open position. There is a lift chamber in fluid communication with a hydraulic fluid inlet such that hydraulic fluid pressure in the lift chamber contributes to an opening force applied to the valve member. A control chamber is in fluid communication with the hydraulic fluid inlet such that hydraulic fluid pressure in the control chamber contributes to a closing force applied to the valve member. A control valve is operable to reduce hydraulic fluid pressure in the control chamber such that the opening force is greater than the closing force and the valve member moves to the open position.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02M 47/02 - Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves, and having means for periodically releasing that closing pressure
F02B 7/02 - Engines characterised by the fuel-air charge being ignited by compression ignition of an additional fuel the fuel in the charge being liquid
F02M 61/04 - Fuel injectors not provided for in groups or having valves
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
50.
Apparatus for reducing pressure pulsations in a gaseous fuelled internal combustion engine
An improved body defining a restricted fluid flow passage in a fuel supply system for delivering a gaseous fuel to an internal combustion engine. The body is formed for installation between and fluidly connecting a gaseous fuel supply conduit and a gaseous fuel flow passage that defines a predetermined volume between the restricted fluid flow passage and a nozzle chamber of a fuel injector from which the gaseous fuel is injected into the internal combustion engine. The restricted fluid flow passage has the smallest effective flow area between the gaseous fuel supply conduit and the nozzle chamber. The restricted fluid flow passage is located a predetermined distance from an injection valve seal within the fuel injector. The predetermined distance is calculated as a function of the speed of sound in the gaseous fuel and an opened time of the fuel injector.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
In metal-on-metal sealing structures, the sealing criteria employed for high pressure liquid fuel does not work when sealing gaseous fuels. A technique for sealing a gaseous fuel between gaseous fuel conduits in an internal combustion engine includes forming a contact band between two surfaces of a sealing structure between a first conduit and a second conduit. A width of the contact band is at least equal to the larger of a minimum contact pressure width where contact pressure is at least equal to a predetermined minimum contact pressure; and a minimum yield zone width where at least one of the two surfaces have plastically deformed.
F16L 19/025 - Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
F02M 55/00 - Fuel-injection apparatus characterised by their fuel conduits or their venting means
F16L 41/08 - Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02M 55/02 - Conduits between injection pumps and injectors
F16L 19/02 - Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
Venting of gaseous fuel during operation and after shutdown of an internal combustion engine increases emissions. A vent handling apparatus for a gaseous fuel system of an internal combustion engine comprises an accumulator for storing gaseous fuel; a first valve selectively enabling fluid communication between the accumulator and one of a gaseous fuel communication passage and a gaseous fuel storage vessel, the gaseous fuel communication passage delivering gaseous fuel to the internal combustion engine for combustion; and an apparatus for selectively returning the gaseous fuel from the accumulator to the internal combustion engine for combustion.
F02M 25/08 - Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02M 43/00 - Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02D 41/04 - Introducing corrections for particular operating conditions
F15B 1/027 - Installations or systems with accumulators having accumulator charging devices
A piston arrangement comprises a circumferential piston groove that can accommodate a seal for sealing between the piston and the cylinder bore when the piston moves in a reciprocal movement. The piston arrangement comprises a first fluid flow passage, defined at least in part by the piston body that fluidly connects the forward side of the cylinder bore with a space within the piston groove underneath the seal and a second fluid flow passage, defined in part by the piston body, which fluidly connects the rear side of the cylinder bore with the space within the piston groove underneath the seal. The two fluid flow passages allow a controlled fluid flow around the piston seal and comprise a channel provided in a lateral wall of the piston groove or an orifice provided in the piston body.
In high horse power engines there are strict energy budgets allotted for each subsystem. It is a challenge for a gaseous fuel pumping system to supply the necessary gaseous fuel mass flow to the engine while staying within budget. A method for pressurizing a gaseous fuel supplied to an engine comprises providing first and second hydraulically actuated pumping apparatus comprising first and second shuttle valves in first and second hydraulic pistons respectively; and selectively communicating hydraulic fluid flow to the first and second hydraulically actuated pumping apparatuses. In a first mode hydraulic fluid is communicated through the first hydraulically actuated pumping apparatus to the second hydraulically actuated pumping apparatus. In a second mode hydraulic fluid is communicated through the second hydraulically actuated pumping apparatus to the first hydraulically actuated pumping apparatus. The method switches between the first and second modes when a pressure drop in hydraulic fluid pressure associated with the hydraulic fluid flowing through the first and second shuttle valves is detected.
F04B 9/08 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 25/00 - Controlling two or more co-operating engines
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F04B 49/03 - Stopping, starting, unloading or idling control by means of valves
Starting a gaseous fuelled engine employing a pilot fuel at cold temperatures is challenging due to reduced ignitability and combustion efficiency of the fuel(s), and the increased viscosity of engine oil. A technique for starting a compression ignition, gaseous fuelled internal combustion engine employing a pilot fuel comprises determining one of a normal start condition and a cold start condition; during the normal start condition, introducing the pilot fuel into a combustion chamber of the internal combustion engine when the pilot fuel pressure rises above a first pressure; during the cold start condition, introducing the pilot fuel into the combustion chamber when the pilot fuel pressure rises above a second pressure that is higher than the first pressure; and selectively introducing the gaseous fuel into the combustion chamber.
F02D 41/06 - Introducing corrections for particular operating conditions for engine starting or warming up
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
A piston seal assembly is disclosed comprising a seal and a seal energizer which supports the seal. The piston seal assembly comprises one component that is designed to position the seal energizer in a fixed axial position within the piston groove. In one embodiment, the seal energizer has the shape of a split ring with at least one of its lateral surfaces shaped to position the energizer in a fixed position within a piston groove. In other embodiments the piston seal assembly comprises a spacer that is positioned next to the seal energizer within the piston groove and is designed to position the seal energizer in a fixed axial position. The piston seal assembly can comprise a seal that has a portion which protrudes between the seal energizer and the piston groove wall such that it positions the seal energizer in a fixed axial position within the piston groove.
A method for operating a gaseous-fuelled internal combustion engine by directly injecting the gaseous fuel into the combustion chamber is disclosed wherein the gaseous fuel is injected at injection pressures higher than 300 bar and the pressure ratio between the gaseous fuel injection pressure and the peak cylinder pressure is between 1.6:1 and 3:1, and preferably between 2.5:1 to 2.8:1. The injection pressure is selected to be between 300 and 540 bar and preferably between 300 bar and 440 bar. The injection pressure can be selected based on a preferred range for the pressure ratio.
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 35/02 - Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
F02B 43/00 - Engines characterised by operating on gaseous fuelsPlants including such engines
F02D 41/40 - Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 41/38 - Controlling fuel injection of the high pressure type
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
Unconstrained rotational movement of an inner vessel with respect to an outer vessel at one end of a cryogenic storage vessel increases stress in supports at an opposite end. A storage vessel for holding a cryogenic fluid comprises an inner vessel defining a cryogen space and having a longitudinal axis, and an outer vessel spaced apart from and surrounding the inner vessel, defining a thermally insulating space between the inner and outer vessels. A structure for supporting the inner vessel within the outer vessel at one end comprises an inner vessel support bracket connected with the inner vessel, an outer vessel support bracket connected with the outer vessel, and an elongated support extending between and mutually engaging the inner and outer support brackets to constrain radial and rotational movement of the inner vessel with respect to the outer vessel and to allow axial movement of the inner vessel with respect to the outer vessel along the longitudinal axis.
Draining a cryogenic storage vessel to remove a pump is timing consuming, expensive and can result in increased greenhouse gas emissions. A cryogenic storage vessel comprises an inner vessel defining a cryogen space and an outer vessel spaced apart from and surrounding the inner vessel, defining a thermally insulating space between the inner and outer vessels. A receptacle comprises an outer sleeve and an inner sleeve, and defines passages for delivery of liquefied gas from the cryogen space to outside the cryogenic storage vessel. The outer sleeve intersects opposite sides of the inner vessel, with the opposite ends of the outer sleeve defining an interior space in fluid communication with the thermally insulating space that is sealed from the cryogen space. The inner sleeve has an open end supported from the outer vessel, and extends into the interior space defined by the outer sleeve, and a closed end opposite the open end, defining a receptacle space that is fluidly isolated from the thermally insulating space. A fluid communication channel extends from the cryogen space to the receptacle space, and can be selectively closed to allow the pump to be removed.
A piston seal for a reciprocating piston is disclosed having the shape of split ring comprising a first end segment and a second end segment overlapping along a split surface that extends from the inner circumferential surface to the outer circumferential surface of the seal and is transverse to the direction in which the 5 piston moves when reciprocating in a cylinder bore. The split surface is spaced further from the leading lateral surface of the seal that faces a compression chamber associated with the piston than it is spaced from said trailing lateral surface of the seal that is opposite to the leading lateral surface.
A method for controlling fuel pressure in an internal combustion engine consuming a gaseous fuel and a liquid fuel comprises steps of determining a gaseous fuel pressure target value as a function of an engine operating condition, pressurizing the liquid fuel to a liquid fuel pressure based on the gaseous fuel pressure target value, and regulating gaseous fuel pressure from the liquid fuel pressure. The gaseous fuel pressure equals the gaseous fuel pressure target value to within a predetermined range of tolerance. A corresponding apparatus controls fuel pressure in a gaseous fuelled internal combustion engine.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
F02D 41/38 - Controlling fuel injection of the high pressure type
F02D 19/08 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
62.
Method and system for controlling fuel pressure in a gaseous fuelled internal combustion engine
A method for controlling fuel pressure in an internal combustion engine consuming a gaseous fuel and a liquid fuel comprises steps of determining a gaseous fuel pressure target value as a function of an engine operating condition, pressurizing the liquid fuel to a liquid fuel pressure based on the gaseous fuel pressure target value, and regulating gaseous fuel pressure from the liquid fuel pressure. The gaseous fuel pressure equals the gaseous fuel pressure target value to within a predetermined range of tolerance. A corresponding system controls fuel pressure in a gaseous fuelled internal combustion engine.
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
Sensor probes for capacitance-type liquid level sensors do not comprise an acceptable balance between cost, performance and durability for mobile applications. An improved sensor probe is provided. A first electrode comprises two or more first plate sections arranged in angular relationship with respect to each other. A second electrode comprises two or more second plate sections arranged in angular relationship with respect to each other. Spacers are located between the first and second electrodes such that each first plate section is spaced apart in parallel and substantially overlapping relationship with respective second plate sections. Fasteners securely fix the first and second electrodes in position.
G01F 23/26 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
64.
Combustion system for gaseous fueled internal combustion engine
Gaseous fuel injection pressures are normally less than liquid fuel injection pressures, resulting in reduced gaseous fuel jet momentum and mixing. A combustion system for an internal combustion engine comprises an intake port and valve, a cylinder and a piston that cooperate to provide a quiescent combustion chamber. The piston includes a re-entrant type piston bowl comprising an outer periphery and a protuberance emanating from the outer periphery. A fuel injector is configured to directly introduce a gaseous fuel into the combustion chamber and an ignition source is provided for igniting the gaseous fuel. A controller actuates the fuel injector such that a gaseous fuel jet is directed towards and splits upon impacting the protuberance forming first and second fuel plumes. The first fuel plume is redirected towards a first mixing zone adjacent a cylinder head and the second fuel plume redirected towards a second mixing zone adjacent the piston bowl.
F02B 23/06 - Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
F02B 43/00 - Engines characterised by operating on gaseous fuelsPlants including such engines
F02B 23/10 - Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
65.
Method and apparatus for fuel injection and dynamic combustion control
Emission targets, such as NOx levels, for gaseous fuelled internal combustion engines that burn a gaseous fuel in a diffusion combustion mode are increasingly more challenging to achieve. A method of fuel injection for an internal combustion engine fuelled with a gaseous fuel comprises introducing a first amount of pilot fuel in a first stage of fuel injection; introducing a first amount of main fuel (the gaseous fuel) in a second stage of fuel injection; and introducing a second amount of main fuel in a third stage of fuel injection. The first and second amounts of main fuel contribute to load and speed demand of the internal combustion engine. Engine maps calibrated for different engine performance can be employed in different regions of the load and speed range of the engine. The engine maps are blended when the engine transitions between two regions; and momentary excursions into different regions do not change the engine calibration.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
F02D 41/40 - Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
F02D 35/02 - Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02B 43/00 - Engines characterised by operating on gaseous fuelsPlants including such engines
A supply of gaseous fuel on a tender car for fuelling a locomotive engine requires the coordination of a variety of operational modes to improve the safety and efficiency 10 when operating components for delivering, refueling, draining, capturing and storing gaseous fuel. A method and apparatus for managing a supply of gaseous on a tender car comprises receiving on the tender car a command signal from the locomotive commanding delivery of gaseous fuel from the tender car to the locomotive; transferring from the tender car at least one status signal to the locomotive indicating 1 status of the tender car; representing a plurality of operational modes of the tender car as a plurality of states; and transitioning between the plurality of states in response to the command signal and the at least one status signal.
B61L 27/04 - Automatic systems, e.g. controlled by trainChange-over to manual control
B61C 17/02 - BunkersTanksTendersWater or fuel pick-up or scoop apparatusWater or fuel supply fittings
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
B61C 5/00 - Locomotives or motor railcars with IC engines or gas turbines
It is challenging to detect end of stroke for hydraulically actuated, reciprocating piston pumps for a variety of reasons. When the pump pressurizes a process fluid to a 10 relatively low pressure the magnitude of hydraulic fluid pressure is not as distinct compared to the magnitude of a pressure drop across a shuttle valve employed to detect end of stroke, which makes detecting the end of stroke event difficult. A method is disclosed for detecting end of a piston stroke in a hydraulic motor comprising a reciprocating piston with a shuttle valve. The method comprises 1 detecting end of piston stroke when a magnitude of a rate of change of hydraulic fluid pressure is substantially greater than a magnitude of a mean rate of change of hydraulic fluid pressure over said piston stroke; and noise in a hydraulic fluid pressure signal is substantially negligible.
F15B 15/28 - Means for indicating the position, e.g. end of stroke
F04B 9/105 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor
F04B 51/00 - Testing machines, pumps, or pumping installations
F01B 31/26 - Other component parts, details, or accessories, peculiar to steam engines
F04B 15/08 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
68.
System for delivering a fluid stored in liquefied form to an end user in gaseous form
A system and method is disclosed for storing a fluid in a storage vessel in liquefied form and delivering it in gaseous form to an end user through a supply line. The system comprises a pressure relief circuit for returning the fluid from the supply line to the vessel when predetermined conditions are met. The pressure relief circuit comprises a return line connected to the supply line and the storage vessel, a diversion line to divert the fluid elsewhere and a switching device operable to direct the fluid to either one of the lines, as a function of predetermined conditions.
An apparatus and method for igniting a gaseous fuel directly introduced into a combustion chamber of an internal combustion engine comprises steps of heating a space near a fuel injector nozzle; introducing a pilot amount of the gaseous fuel in the combustion chamber during a first stage injection event; controlling residency of the pilot amount in the space such that a temperature of the pilot amount increases to an auto-ignition temperature of the gaseous fuel whereby ignition occurs; introducing a main amount of the gaseous fuel during a second stage injection event after the first stage injection event; and using heat from combustion of the pilot amount to ignite the main amount.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02B 23/06 - Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 41/40 - Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02D 41/38 - Controlling fuel injection of the high pressure type
F02P 19/02 - Incandescent ignition, e.g. during starting of internal-combustion enginesCombination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
F02M 53/04 - Injectors with heating, cooling, or thermally-insulating means
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
F02M 21/06 - Apparatus for de-liquefying, e.g. by heating
F02B 23/10 - Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
A fuel injector for an internal combustion engine includes an injector body, a first actuator for controlling movement of a first valve needle for injecting a first fuel into a cylinder of the engine, and a second actuator for controlling movement of a second valve needle for injecting a second fuel into the cylinder. Each of the actuators are axially spaced along a longitudinal axis of the injector body and has a respective conductive element for carrying current to the actuator, the injector further includes an electrical connector module which has first and second electrical connectors for connection with an associated one of the conductive elements for the actuators. The electrical connector module is mounted between the first and second actuators along the longitudinal axis of the injector body.
e) for slidably receiving the outer valve needle (130). In one embodiment, the tip part (120) and the needle guide part (118) are made from different materials, and a biasing spring (148) for the outer valve needle (130) is housed in the nozzle body assembly (112).
F02M 61/12 - Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
F02M 47/02 - Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves, and having means for periodically releasing that closing pressure
F02M 63/00 - Other fuel-injection apparatus having pertinent characteristics not provided for in groups or Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups or
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
A fuel injector, preferably a dual fuel injector, for an internal combustion engine is disclosed. The fuel injector comprises first and second valve needles (80, 100) arranged to control the injection of first and second fuels, first and second control chambers (88, 10) associated with the first and second valve needles (80, 100) respectively, a first control valve (26) comprising a first control valve member (48) and arranged to vary the pressure of a control fluid in the first control chamber (88) so as to cause opening and closing movement of the first valve needle (80), and a second control valve (28) comprising a second control valve member (60) and arranged to vary the control fluid 10 pressure in the second control chamber (110) so as to cause opening and closing movement of the second valve needle (100). The first and second control valve members (48, 60) are arranged for linear movement along a common control valve axis.
F02M 47/02 - Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves, and having means for periodically releasing that closing pressure
F02M 45/00 - Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
F02M 45/10 - Other injectors with multiple-part delivery, e.g. with vibrating valves
F02M 61/04 - Fuel injectors not provided for in groups or having valves
F02M 61/08 - Fuel injectors not provided for in groups or having valves the valves opening in direction of fuel flow
F02M 63/00 - Other fuel-injection apparatus having pertinent characteristics not provided for in groups or Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups or
F02M 61/18 - Injection nozzles, e.g. having valve-seats
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
A fuel injector for an internal combustion engine is disclosed. The fuel injector is installable in a cylinder head bore of a cylinder head of the engine and has a body region arranged to be received within the cylinder head bore, and a head region arranged to extend outside the cylinder head bore to protrude from the cylinder head when the injector is installed in the cylinder head bore. The injector includes a first valve needle arranged to control the injection of a gaseous fuel from a first outlet, a second valve needle arranged to control the injection of a liquid fuel from a second outlet, a gaseous fuel inlet for admitting the gaseous fuel to the injector, and a liquid fuel inlet port for admitting the liquid fuel to the injector. The gaseous fuel inlet is disposed in the body region of the injector, and the liquid fuel inlet port is disposed in the head region of the injector. The injector can also include an internal accumulator volume so that an external fuel rail is not necessary.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
F02M 47/02 - Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves, and having means for periodically releasing that closing pressure
F02M 63/00 - Other fuel-injection apparatus having pertinent characteristics not provided for in groups or Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups or
F02M 61/10 - Other injectors with elongated valve bodies, i.e. of needle-valve type
F02M 61/14 - Arrangements of injectors with respect to enginesMounting of injectors
F02M 61/16 - Details not provided for in, or of interest apart from, the apparatus of groups
An apparatus and method estimate fluid mass in a cryogenic tank that holds a multiphase fluid comprising a liquid and a vapor. The apparatus comprises a level sensor, a pressure sensor and a computer. The level sensor provides a parameter representative of a level of the liquid. The pressure sensor provides a pressure signal representative of vapor pressure inside the cryogenic tank. The computer is operatively connected with the level sensor and the pressure sensor to receive the parameter and the pressure signal, and is programmed to determine the level from inputs comprising the parameter, to calculate a first volume of the liquid from inputs comprising the level, and to calculate a first mass of the liquid from inputs comprising the first volume and the pressure signal.
G01N 7/00 - Analysing materials by measuring the pressure or volume of a gas or vapour
G01F 25/00 - Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
G01F 23/30 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
G01F 23/14 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
G01F 23/26 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
G01F 23/00 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
F17C 13/02 - Special adaptations of indicating, measuring, or monitoring equipment
G01N 9/24 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by observing the transmission of wave or particle radiation through the material
G01F 17/00 - Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies
A method for fuel regulation during a non-motoring operating mode of an internal combustion engine is provided. A fuel regulator employs a first fuel to regulate pressure of a second fuel. The first fuel is communicated to the fuel regulator through a first fuel circuit. The method comprises actuating a fuel injector that introduces the first fuel and the second fuel into a combustion chamber of the internal combustion engine during the non-motoring operating mode. The fuel injector is actuated with an injection command signal having a pulse width below a predetermined maximum value whereby no fuel is injected into the combustion chamber and the first fuel drains from the first fuel circuit through the fuel injector to a supply tank.
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 41/12 - Introducing corrections for particular operating conditions for deceleration
F02D 41/38 - Controlling fuel injection of the high pressure type
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 41/22 - Safety or indicating devices for abnormal conditions
F02D 19/08 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
F02D 41/40 - Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
A check valve with improved response time comprises a valve member which has a central portion of a substantially convex shape and a guide portion that surrounds the central portion. The central portion has a central convex curvature extending towards the outlet port of the check valve, in the direction of the fluid flow. The guide portion has a weight to area ratio that is smaller than the weight to area ratio of the central portion. Such a check valve has an overall reduced weight of the valve member allowing a faster response time when the valve switches between its closed and open positions.
F04B 15/06 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
F04B 53/16 - CasingsCylindersCylinder liners or headsFluid connections
F04B 15/08 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
A method and apparatus for in situ operating an internal combustion engine comprising determining at least one combustion characteristic for a combustion chamber of the internal combustion engine, comprising an actual heat release signal for the combustion chamber; and inputting the actual heat release signal into a diagnostic logic tree for diagnosing changes in combustion characteristics due to at least one of: a malfunctioning fuel injector, a start of combustion timing error; and a change in fuel quality; and performing a mitigation technique to compensate for the changes in combustion characteristics.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 29/02 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehiclesControlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving variable-pitch propellers
F02D 35/02 - Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
78.
Temperature control of a fluid discharged from a heat exchanger
A reciprocating piston cryogenic pump has been suspended from stroking when process fluid discharge temperature from a vaporizer dropped below a threshold to prevent freezing of a heat exchange fluid circulating through the vaporizer and damage to downstream components. Suspension of the pump results in a decrease of process fluid pressure downstream of the vaporizer, which is undesirable. In the present technique, a temperature is monitored correlating to process fluid temperature downstream of the vaporizer. The amount of process fluid discharged from the pump in each cycle is adjusted as a function of the temperature such that the average residence time of the process fluid in the vaporizer is increased as the discharge amount decreases, increasing process fluid discharge temperature. The average mass flow rate of the process fluid through the vaporizer is unchanged regardless of pump discharge amount such that process fluid pressure downstream of the vaporizer is maintained.
An apparatus for servicing a tank and/or a plug includes a valve having a first port sealingly couplable onto a tank port surrounding the plug, a second port, and a valve member operable between an open position providing a pathway between the first and second ports, and a closed position providing a sealed barrier between the first and second ports. The apparatus further includes an adapter sealingly couplable to the second port, and a plug displacement tool couplable to the adapter for displacing the plug relative to the tank when the first port is coupled to the tank port, the adapter is coupled to the second port, and the valve member is in the open position.
A method for correcting injection behavior of a fuel injector includes calculating a nominal value of a fuel injector family characteristic for an average fuel injector from a family of fuel injectors as a multi-variable function of engine operating conditions, calculating a corrected value of the fuel injector family characteristic as a function of the nominal value, and employing the corrected value when actuating the fuel injector to inject fuel.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
F02D 41/24 - Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 41/38 - Controlling fuel injection of the high pressure type
F02M 57/02 - Injectors structurally combined with fuel-injection pumps
F02M 65/00 - Testing fuel-injection apparatus, e.g. testing injection timing
F02D 35/02 - Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
A cycle-by-cycle skip-fire fuel-injection technique for pilot-ignited engines involve skip-firing selected combustion chambers when a low load condition is determined and modulating the fuel delivery to maintain the requisite engine power, while reducing pilot fuel quantity to a predetermined minimum. Overall pilot fuel consumption is thereby reduced.
A method for introducing a gaseous fuel into a combustion chamber of an internal combustion engine includes forming a non-ignitable mixture of the gaseous fuel and a gas including oxygen in a predefined mixture mass ratio within a predetermined range of tolerance having a pressure suitable for directly introducing the non-ignitable mixture into the combustion chamber during at least the compression stroke; and introducing the non-ignitable mixture directly into the combustion chamber.
F02B 43/00 - Engines characterised by operating on gaseous fuelsPlants including such engines
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02M 67/02 - Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type the gas being compressed air, e.g. compressed in pumps
F02B 63/04 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for electric generators
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 41/22 - Safety or indicating devices for abnormal conditions
F02D 41/38 - Controlling fuel injection of the high pressure type
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
F02B 43/10 - Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
F02B 47/08 - Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being other than water or steam only the substances including exhaust gas
83.
Supplying gaseous fuel from a liquid state to an engine
A method for supplying gaseous fuel from a liquid state to an internal combustion engine includes employing a second internal combustion engine as a source of energy, pumping the gaseous fuel in the liquid state by transforming energy from the source of energy into mechanical work for the pumping, exchanging waste heat from the second internal combustion engine in a first heat exchange fluid circulating through the second internal combustion engine to a second heat exchange fluid, vaporizing the gaseous fuel pumped from the liquid state with heat from the second heat exchange fluid, and delivering the gaseous fuel vaporized from the liquid state to the internal combustion engine. Pressure of the gaseous fuel delivered to the internal combustion engine is maintained within a predetermined range of tolerance by the pumping.
F02B 63/06 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for pumps
84.
Supplying gaseous fuel from a liquid state to an internal combustion engine
An improved apparatus supplies gaseous fuel from a liquid state to an internal combustion engine comprising an electrical energy generating apparatus for generating electrical energy from a store of chemical energy. A liquid pumping apparatus for pumping the gaseous fuel in the liquid state includes an energy converter for converting the electrical energy to mechanical energy which drives the liquid pumping apparatus. The liquid pumping apparatus also includes a first heat exchanger for vaporizing the gaseous fuel received from the pumping apparatus and a controller programmed to operate the liquid pumping apparatus to maintain a pressure of the gaseous fuel supplied to the internal combustion engine within a predetermined range.
F02B 63/04 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for electric generators
F02G 5/04 - Profiting from waste heat of exhaust gases in combination with other waste heat from combustion engines
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
85.
Method and apparatus for supplying a gaseous fuel to an internal combustion engine
An apparatus and method for supplying gaseous fuel from a tender car to an internal combustion engine on a locomotive comprising storing the gaseous fuel at a cryogenic temperature in a cryogenic storage tank on the tender car; pumping the gaseous fuel to a first pressure from the cryogenic storage tank; vaporizing the gaseous fuel at the first pressure; and conveying the vaporized gaseous fuel to the internal combustion engine; whereby a pressure of the vaporized gaseous fuel is within a range between 310 bar and 575 bar.
F02M 31/00 - Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
A method and apparatus pump fuel to a fuel injection system in an internal combustion engine. The method comprises steps of pumping a liquid fuel to a first pressure, using the liquid fuel at the first pressure as a hydraulic fluid for driving a gaseous fuel pump, and pumping a gaseous fuel to a second pressure with the gaseous fuel pump.
F02B 13/00 - Engines characterised by the introduction of liquid fuel into cylinders by use of auxiliary fluid
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02M 39/02 - Arrangements of fuel-injection apparatus to facilitate the driving of pumpsArrangements of fuel-injection pumpsPump drives
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatusArrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
F02M 59/38 - Pumps characterised by adaptations to special uses or conditions
F02M 63/00 - Other fuel-injection apparatus having pertinent characteristics not provided for in groups or Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups or
F02M 63/02 - Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injectorFuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectorsFuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
87.
Apparatus and method for a portable fuel supply for a vehicle
An improved apparatus and method provide a portable fuel supply for a vehicle. The apparatus comprises a vessel that is a source of fuel and a conduit that is operatively connected with the vessel at one end. There is also a coupling pin arrangement connected with the vessel. The coupling pin arrangement comprises a coupling pin and is mutually engageable with a fifth wheel coupling device. An end opposite the one end of the conduit operatively connects with a fuel system of the vehicle such that the vessel is in fluid communication with the fuel system and the vehicle operates with the fuel from the vessel.
A module for managing mass flow and dampening pressure pulsations in the supply line of a gaseous fuelled internal combustion engine comprises a hollow body defining an expanded volume that is fluidly connected directly to a pressure sensor and a temperature sensor. The module is placed along the supply line of a gaseous fuel engine between a fuel pressure increasing device and the fuel rail that supplies fuel to the engine. The module can comprise a filter that filters the impurities from the gaseous fuel supplied to the engine and an overpressure protection device that can vent some of the gaseous fuel from the module to protect it from over-pressurization.
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
An apparatus and method are provided for calibrating injection of fuel into at least one combustion chamber of an internal combustion engine. The internal combustion engine comprises at least one fuel injector and a fuel rail. The fuel rail is pressurized to a fuel rail pressure. The method comprises steps of (a) calculating an indicated torque for the internal combustion engine operating at a target fuelling from inputs comprising a fuelling command; (b) calculating a friction torque for the internal combustion engine from inputs comprising the target engine speed; (c) calculating a torque error from a difference between the indicated torque and the friction torque; and (d) determining a pulse-width correction factor for a first baseline pulse-width applied to actuate the at least one fuel injector whereby the torque error is below a predetermined threshold when the internal combustion engine is operating at the target fuelling.
B60T 7/12 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger
F02D 41/24 - Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
A dual fuel injection valve with concentric needles comprises an inner needle and an outer needle surrounding the inner needle, both needles being located inside the injection valve body. The valve is provided with a first set and a second set of orifices for separately injecting two different fuels directly into the combustion chamber of an internal combustion engine. The outer needle is fixed against rotation with respect to the injection valve body such that an interlace angle between the centerlines of the first series of orifices and second series of orifices is set at different predetermined angles to reduce methane emissions.
F02M 61/12 - Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
F02D 19/08 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
A cryogenic pump has an associated heater for vaporizing cryogenic fluid. The heater has a chamber (bounded by an inner sleeve and an outer sleeve) disposed around at least a portion of the pump housing. The heater has a helical heating coil with a plurality of turns disposed within the chamber and a helical baffle having a plurality of turns interspaced with the turns of the heating coil for guiding heat exchange fluid over the turns of the heat exchange coil. The heater has an inlet for cryogenic fluid to communicate with the heat exchange coil and an outlet for the resulting vaporized fluid. Heat exchange fluid flows through an inlet of the heater chamber to an outlet of the heater chamber and then through a space defined between the inner sleeve and a portion of the pump housing.
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
F04B 15/08 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
F04B 37/06 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups for evacuating by thermal means
92.
Two engine system with a gaseous fuel stored in liquefied form
A gaseous fuelled two-engine system comprises a high pressure direct injection engine as the main power source and an auxiliary fumigated engine that can be fuelled with vapor removed from a storage tank that stores the gaseous fuel in liquefied form at cryogenic temperatures. The fuel supply system comprises a cryogenic pump for raising the pressure of the fuel to the injection pressure needed for the high pressure direct injection engine, and the cryogenic pump is powered by the auxiliary fumigated engine.
A method and a system control flow of fluid from a storage tank through a supply line to an end user. The system includes a valve that in its open position allows fluid flow from the storage tank to the end user and closes when the pressure in the fluid supply line drops below a predetermined set point. The storage tank is thereby isolated because the valve prevents fluid from flowing from the storage tank to the supply line when the pressure in the supply line is lower than a predetermined upper limit of the storage tank pressure. An end use that is particularly suited to the present system and method is a fuel storage and supply system for a natural gas powered internal combustion engine.
F17D 3/01 - Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02M 69/54 - Arrangement of fuel pressure regulators
94.
Method of controlling a direct-injection gaseous-fuelled internal combustion engine system with a selective catalytic reduction converter
A method controls a direct-injection gaseous-fuelled internal combustion engine system to improve the conversion efficiency of an SCR converter that is operative to reduce levels of NOx. The method comprises detecting when the internal combustion engine is idling and timing the injection of a first quantity of fuel to begin injection when the engine's piston is near top dead center; and controlling the temperature of exhaust gas to be above a predetermined temperature that is defined by an operating temperature range that achieves a desired conversion efficiency for the selective catalytic reduction converter, by: (a) timing injection of the gaseous fuel to begin after timing for injection the first quantity of fuel, and (b) increasing exhaust gas temperature by increasing a delay in timing for injecting the gaseous fuel, while limiting the delay to keep concentration of unburned fuel exiting the combustion chamber below a predetermined concentration.
F01N 3/18 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl
F02M 26/05 - High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
F02D 41/02 - Circuit arrangements for generating control signals
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/08 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
F02D 41/08 - Introducing corrections for particular operating conditions for idling
F02D 41/40 - Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
F02B 37/00 - Engines characterised by provision of pumps driven at least for part of the time by exhaust
A method and apparatus are provided for hydraulic fluid supply between a hydraulic pump and a hydraulic drive unit, switching hydraulic fluid flow direction to the hydraulic drive unit or stopping hydraulic fluid flow to the hydraulic drive unit when measured hydraulic fluid pressure crosses a predetermined pressure threshold value. The method further comprises calculating an amount of mechanical work done by the hydraulic drive unit and warning an operator or limiting hydraulic fluid flow rate to the hydraulic drive unit when the calculated mechanical work for the drive cycle is less than an expected amount of mechanical work. The apparatus for practicing the method further includes a pressure sensor associated with a hydraulic fluid supply conduit between the pump and the drive unit, and an electronic controller programmed to operate the drive system according to the method.
F15B 11/10 - Servomotor systems without provision for follow-up action with only one servomotor in which the servomotor position is a function of the pressure
96.
Storage tank for a cryogenic fluid with a partitioned cryogen space
A cryogenic storage tank comprises a partition that divides a cryogen space into a main storage space and an auxiliary space. A valve disposed inside the cryogen space is associated with a first fluid passage through the partition. The valve comprises a valve member that is actuatable by fluid forces within the cryogen space. A second fluid passage through the partition comprises a restricted flow area that is dimensioned to have a cross-sectional flow area that is smaller than that of a fill conduit such that there is a detectable increase in back-pressure when the main storage space is filled with liquefied gas.
A method and apparatus determine the fuel injection on-time to accurately meter fuel injected directly into the combustion chamber of a gaseous fuelled internal combustion engine. The fuel injection on-time is determined by interpolating between values retrieved from two of a plurality of predetermined look-up tables, which each define fuel injection on-time as a function of gaseous fuel rail pressure and fuelling amount. Each table corresponds to a fixed value of a third parameter that correlates to in-cylinder pressure.
B60T 7/12 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger
A dual fuel connector separately supplies two different fuels to fluidly isolated fuel passages within a fuel injection valve of an internal combustion engine. The dual fuel connector comprises a body with separate fluid connections to the first fuel inlet, the second fuel inlet, a first fuel rail and a second fuel rail. A first fuel passage within the body is in fluid communication with the first fuel rail and the first fuel inlet. A second fuel passage within the body is in fluid communication with the second fuel rail and the second fuel inlet, and wherein the first fuel passage is fluidly isolated from the second fuel passage. The dual fuel connector supplies two different fuels to a fuel injection valve, for engines that are not designed with a cylinder head that has internal bores that can serve as fuel rails.
A fuel injection valve co-injects a liquid and a gaseous fuel into the combustion chamber of an internal combustion engine. A solid needle regulates the injection of liquid and gaseous fuels from a cavity in the fuel injection valve into the combustion chamber when the needle is lifted to its open position. In preferred embodiments, liquid fuel is metered and pressurized in an intensifier's cylinder provided within the valve body and the liquid fuel is delivered through a restricted flow passage into the cavity where it mixes with the gaseous fuel. The restricted flow passage can be formed by a small passage formed in the valve body or an annular passage between the needle and the valve body.
B05B 7/06 - Spray pistolsApparatus for discharge with one outlet orifice surrounding another approximately in the same plane
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/08 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
F02M 57/02 - Injectors structurally combined with fuel-injection pumps
F02M 63/00 - Other fuel-injection apparatus having pertinent characteristics not provided for in groups or Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups or
100.
Fuel injection control method for a direct injection gaseous-fuelled internal combustion engine
The method comprises receiving from the vehicle controller, values associated with the engine speed and of another parameter indicative of the engine operating conditions, such as the total fuelling amount, and controlling the fuel injection parameters according to the engine state, which, for example, can include a normal operation mode, a filter regeneration mode, an engine protection mode, high or low transient load modes, and operating at different altitudes, through algorithms implemented in an electronic controller.
F02D 41/04 - Introducing corrections for particular operating conditions
F02M 51/00 - Fuel-injection apparatus characterised by being operated electrically
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
