An aftertreatment system includes a decomposition housing, a doser coupled to the decomposition housing, a first unit upstream of the decomposition housing, a second unit downstream of the decomposition housing, a first differential pressure (DP) sensor, a second DP sensor, a first pressure tube (PT) segment, a second PT segment, and a third PT segment. The decomposition housing includes a decomposition housing port for providing fluid communication through the decomposition housing. The first unit includes a first port for providing fluid communication through a housing of the first unit. The second aftertreatment unit includes a second port for providing fluid communication through a housing of the second unit. The first PT segment is in fluid communication with the decomposition housing port, a first inlet of the first DP sensor, and a first inlet of the second DP sensor.
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
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
F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
A controller that determines a temperature sensor value based on a signal received from a temperature sensor disposed in an exhaust conduit downstream of a heater. The controller further determines an estimated heater inlet temperature of the heater, determines an estimated exhaust flowrate within the exhaust conduit, determines a heater input power provided to the heater, and determines a temperature control parameter of the heater based on the temperature sensor value, the estimated heater inlet temperature, the estimated exhaust flowrate, and the heater input power. The controller further transmits, to a controllable aftertreatment component, a control signal based on the temperature control parameter.
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
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
F02D 41/02 - Circuit arrangements for generating control signals
F01N 1/00 - Silencing apparatus characterised by method of silencing
F01N 9/00 - Electrical control of exhaust gas treating apparatus
3.
AFTERTREATMENT SYSTEM INCLUDING DIFFERENTIAL PRESSURE SENSORS AND PRESSURE TUBE SEGMENTS
An aftertreatment system includes a decomposition housing, a doser coupled to the decomposition housing, a first unit upstream of the decomposition housing, a second unit downstream of the decomposition housing, a first differential pressure (DP) sensor, a second DP sensor, a first pressure tube (PT) segment, a second PT segment, and a third PT segment. The decomposition housing includes a decomposition housing port for providing fluid communication through the decomposition housing. The first unit includes a first port for providing fluid communication through a housing of the first unit. The second aftertreatment unit includes a second port for providing fluid communication through a housing of the second unit. The first PT segment is in fluid communication with the decomposition housing port, a first inlet of the first DP sensor, and a first inlet of the second DP sensor.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
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
G01L 13/00 - Devices or apparatus for measuring differences of two or more fluid pressure values
G01M 15/10 - Testing internal-combustion engines by monitoring exhaust gases
A doser mount includes an annular body portion, a plurality of legs, and a plurality of projections. The annular body portion defines a central cavity. The plurality of legs protrude from a lower surface of the annular body portion and are configured to be coupled to an outer surface of an exhaust conduit. The plurality of projections extend from an upper surface of the annular body at a plurality of circumferential positions of the upper surface of the annular body.
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
An exhaust gas system includes: an engine-turbine exhaust gas conduit configured to receive exhaust gas from an engine; a turbocharger including a turbine coupled to the engine-turbine exhaust gas conduit; an injection housing coupled to the turbine and centered on an injection housing axis; a dosing module coupled to the injection housing and including an injector configured to dose reductant into the injection housing, the injector centered on an injector axis; and a bypass system including: a bypass inlet conduit coupled to the engine-turbine exhaust gas conduit, a bypass valve coupled to the bypass inlet conduit, and a bypass outlet conduit coupled to the bypass valve, the bypass outlet conduit centered on a bypass outlet conduit axis.
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
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01F 23/213 - Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
B01F 25/314 - Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
B01F 27/112 - Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
F02B 37/18 - Control of the pumps by bypassing exhaust
G09G 3/3225 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
The exhaust of internal combustion engines. such as diesel engines. includes nitrogen oxide (NOx) compounds. It is desirable to reduce NOx emissions to comply with environmental regulations. for example. To reduce NOx emissions, a reductant may be dosed into the exhaust by a closer assembly within an aftertreatment system. The reductant facilitates conversion of a portion of the exhaust into non-NOx emissions, such as nitrogen (N2), carbon dioxide (CO2), and water (H20), thereby reducing NOx emissions. These aftertreatment systems may include a pressure sensor and a temperature sensor that obtain readings from reductant that is'dosed into the exhaust. A doser assembly includes a doser housing and a doser located at least partially within the doser housing. The doser assembly also includes a sensor assembly that includes a pressure sensor assembly having a pressure sensor and a temperature sensor assembly having a temperature sensor.
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
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
A capacitor bank assembly includes a housing assembly and an internal assembly. The housing assembly includes an upper cover and a lower cover. The upper cover defines a cavity. The lower cover is below the upper cover in a first direction. The lower cover includes a base plate, a first protrusion, and a second protrusion. The first protrusion and the second protrusion each extend from the base plate in the first direction towards the upper cover. The internal assembly includes a circuit board removably coupled to the upper cover and a plurality of capacitors. At least a portion of each of the capacitors extends within the cavity. The capacitor bank assembly further includes a first thermally conductive layer disposed between the circuit board and a first protrusion upper surface and a second thermally conductive layer disposed between the circuit board and a second protrusion upper surface.
An aftertreatment system includes an introduction conduit and a mixer disposed within the introduction conduit. The introduction conduit is centered on a mixer body center axis. The mixer includes a mixer body, an exhaust sampling flange, an outlet flange, and an outlet tube. The exhaust sampling flange is coupled to the mixer body at a location adjacent to a second end of the mixer body. The exhaust sampling flange includes exhaust sampling flange apertures arranged in an array that extends circumferentially around the mixer body center axis. The outlet flange is coupled to the second end downstream of the exhaust sampling flange. The outlet flange includes an outlet flange aperture. The outlet tube is coupled to the outlet flange. The outlet tube is in fluid communication with at least one of the exhaust sampling flange apertures. The outlet tube extends over a portion of the outlet flange aperture.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01F 25/314 - Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
B01F 25/431 - Straight mixing tubes with baffles or obstructions that do not cause substantial pressure dropBaffles therefor
B01F 101/00 - Mixing characterised by the nature of the mixed materials or by the application field
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
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
A gas production system includes an electrolyzer configured to provide an electrolysis gas including a mixture of hydrogen gas and oxygen gas. The gas production system includes a housing having a housing inlet configured to receive the electrolysis gas from the electrolyzer. The gas production system includes a catalyst member disposed in the housing. The catalyst member includes a first catalyst bed configured to receive the electrolysis gas from the housing inlet. The first catalyst bed includes a first catalyst material. The catalyst member includes a second catalyst bed separated from the housing inlet by the first catalyst bed and configured to receive the electrolysis gas from the first catalyst bed. The second catalyst bed includes a second catalyst material different from the first catalyst material.
C25B 1/04 - Hydrogen or oxygen by electrolysis of water
C01B 3/26 - Production of hydrogen or of gaseous mixtures containing hydrogen by decomposition of gaseous or liquid organic compounds of hydrocarbons using catalysts
C01B 3/38 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
C01B 3/32 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
C01B 3/48 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents followed by reaction of water vapour with carbon monoxide
10.
EXHAUST AFTERTREATMENT ASSEMBLY WITH A MIXER HAVING A MIXING PLATE THAT IS CRESCENT SHAPED
An exhaust aftertreatment assembly includes a tubular conduit and a mixer disposed in the tubular conduit. The tubular conduit includes a central axis. The mixer includes a first mixing plate and a second mixing plate. The first mixing plate is crescent shaped and includes a first plate convex edge coupled to the tubular conduit, and a first plate concave edge. The second mixing plate is crescent shaped and includes a second plate convex edge coupled to the tubular conduit, and a second plate concave edge. The first mixing plate and the second mixing plate are positioned relative to the tubular conduit such that the central axis extends between the first plate concave edge and the second plate concave edge. A first plane in which the first mixing plate extends and a second plane in which the second mixing plate extends are oblique to the central axis of the tubular conduit.
An exhaust mixer assembly includes a mixer housing, an inlet opening, an inlet plate, a support plate, a support plate opening, a conveying tube, an outlet plate, and an outlet plate opening. The mixer housing is coupled to the upstream housing. The inlet plate and the support plate define a first mixing chamber. The inlet opening is configured to receive exhaust from the upstream housing and deliver exhaust to the first mixing chamber. The support plate and the outlet plate define a second mixing chamber. The conveying tube is positioned in the second mixing chamber. The support plate opening is configured to receive treated exhaust from the first mixing chamber and deliver the treated exhaust to the second mixing chamber. The treated exhaust circumferentially flows through the second mixing chamber and through the conveying tube. The conveying tube delivers reductant to the outlet plate opening.
B01F 25/42 - Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
B01F 25/431 - Straight mixing tubes with baffles or obstructions that do not cause substantial pressure dropBaffles therefor
F01N 1/08 - Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
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
An inlet chamber includes an inlet defining an inlet axis that is configured to receive exhaust, a sidewall extending around a center axis, and an end wall coupled to the sidewall such that the center axis extends through the end wall. The sidewall and the end wall define an internal volume. The inlet chamber also includes a baffle assembly that is coupled to the end wall and extends into the internal volume. The baffle assembly includes a flat strip that has one or more elongated portions extending in a length direction, and one or more notches extending from the elongated portions in a direction transverse to the center axis and to the length direction.
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
F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
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 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
A controller for a vehicle power system that includes (i) a vehicle that has a battery, an alternator powered by an engine, and an exhaust aftertreatment system that includes an exhaust aftertreatment component, a temperature sensor, and a heater, and (ii) an external power source that is separate from the vehicle. The controller receives, from the temperature sensor, a first temperature signal associated with temperature of the exhaust aftertreatment component and, in response to determining that the temperature is less than a target temperature of the exhaust aftertreatment component, causes power to be provided from the external power source to the heater. The controller further receives, from the temperature sensor, a second temperature signal associated with the target temperature and provides an indicator indicative of the exhaust aftertreatment component reaching the target temperature and the external power source being disconnectable from at least one of the controller or the heater.
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
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
14.
SYSTEMS AND METHODS FOR DETECTING DEGRADATION OF CATALYST MEMBERS OF AN AFTERTREATMENT SYSTEM
A non-transitory computer-readable media having computer-readable instructions stored thereon that, when executed by at least one controller, cause the at least one controller to cause a first doser to cease dosing a first reductant portion of a reductant to a first exhaust portion of exhaust upstream of a first catalyst member disposed in a first leg of a selective catalytic reduction (SCR) system. The instructions can cause the at least one controller to cause a second doser to dose a second reductant portion of the reductant to a second exhaust portion of the exhaust upstream of a second catalyst member disposed in a second leg of the SCR system. The instructions can cause the at least one controller to determine a first conversion efficiency of the first leg while the first doser is not dosing the first reductant portion and the second doser is dosing the second reductant portion.
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
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
15.
SYSTEMS INCLUDING A HYDROGEN INTERNAL COMBUSTION ENGINE AND AFTERTREATMENT SYSTEM
A system includes: a hydrogen internal combustion engine configured to produce exhaust; an aftertreatment system in exhaust receiving communication with the hydrogen internal combustion engine, the aftertreatment system comprising a catalyst member; a sensor coupled to the aftertreatment system; and a controller configured to: receive, from the sensor, data corresponding to a characteristic of the aftertreatment system, determine, based on the characteristic, a performance value corresponding to the catalyst member, compare the performance value to a threshold, cause the hydrogen internal combustion engine to operate in a first engine operating mode when the performance value does not exceed the threshold, and cause the hydrogen internal combustion engine to operate in a second engine operating mode when the performance value exceeds the threshold.
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
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 1/02 - Controlling fuel-injection pumps, e.g. of high-pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
A decomposition chamber for an aftertreatment system includes a conduit centered on a conduit axis extending in a reference plane and a doser mount. The doser mount includes an injection opening centered on an injection axis. The injection axis extends in the reference plane. In the reference plane, the injection axis is oriented at an injection angle between 100 degrees and 170 degrees, inclusive, relative to the conduit axis. The decomposition chamber includes a mixing plate having plurality of lateral crossmembers, a plurality of transverse crossmembers, and a plurality of deflectors. In the reference plane, an orientation of a plate plane in which the plurality of lateral crossmembers extend is at a plate angle between 10 and 80 degrees, inclusive, relative to the conduit axis. The decomposition chamber includes a vane mixer disposed in the conduit downstream of the mixing plate and a baffle.
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
A gas production system includes an electrolyzer configured to provide a gas comprising hydrogen gas and oxygen gas. The gas production system includes a housing having a housing inlet configured to receive the gas from the electrolyzer. The gas production system includes a first catalyst member configured to receive the gas from the housing inlet. The gas production system includes a second catalyst member configured to receive the gas from the first catalyst member. The gas production system includes a first injector configured to selectively provide a first amount of a treatment gas into the housing at a location between the housing inlet and the first catalyst member. gas production system includes a second injector configured to selectively provide a second amount of the treatment gas into the housing at a location between the first catalyst member and the second catalyst member.
A mixer for an exhaust aftertreatment system that receives exhaust and a treatment fluid. The mixer includes a mixer body centered on a mixer body center axis. The mixer body includes a first portion that couples to a decomposition chamber housing. The mixer body further includes a second portion having a first edge at the first portion and having a first radius, and a second edge opposite the first edge and having a second radius less than the first radius. Each of the first edge and the second edge has an arc angle between 170 degrees and 210 degrees. The mixer body further includes a third portion extending from the second edge of the second portion in a direction at least partially along the mixer body center axis. The mixer further includes a wall coupled to the mixer body. The wall extends radially outward from the second portion.
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
B01F 23/21 - Mixing gases with liquids by introducing liquids into gaseous media
B01F 25/10 - Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
A heater assembly includes an inlet body having an inlet body wall having an inlet body wall end portion. The heater assembly includes a heater body having a heater body wall. The heater body wall includes a heater body wall central portion. The heater body wall has a first diameter at the heater body wall central portion. The heater body wall includes a heater body wall outlet flange having a first outlet flange portion extending axially and radially outward from the heater body wall central portion at a first angle with respect to an extending direction of the heater body wall central portion, and a second outlet flange portion extending axially outward from the first outlet flange portion, substantially parallel to the heater body wall central portion, and contiguous with the first outlet flange portion. The heater body wall has a second diameter at the second outlet flange portion.
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
F01N 5/02 - Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
There is provided a turbine for a turbocharger, comprising: a turbine inlet passage configured to receive exhaust gas from an internal combustion engine, the exhaust gas received by the turbine inlet passage defining a turbine bulk flow; a turbine wheel chamber configured to receive the turbine bulk flow from the turbine inlet passage, the turbine wheel chamber configured to contain a turbine wheel supported for rotation about a turbine axis; a turbine outlet passage configured to receive the turbine bulk flow from the turbine wheel chamber; a dosing module configured to deliver a spray of aftertreatment fluid into a spray region of the turbine outlet passage through which the turbine bulk flow passes; and an auxiliary passage configured to receive a portion of the turbine bulk flow, the portion of the turbine bulk flow received by the auxiliary passage defining an auxiliary flow; wherein the auxiliary passage is configured to direct the auxiliary flow into the spray region of the turbine outlet passage.
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
F01N 3/22 - Control of additional air supply only, e.g. using by-passes or variable air pump drives
A flow device for a mixer of an exhaust aftertreatment system. The flow device includes a plate and a plurality of conduits coupled to the plate. Each of the conduits includes a first sidewall extending outward of the plate, a second sidewall extending outward of the plate and opposing the first sidewall, a main wall extending from the plate and between the first sidewall and the second sidewall, a conduit inlet coplanar with the plate and that receives exhaust, and a conduit outlet forming an angle between 35 degrees and 145 degrees, inclusive, with the plate. The conduit outlet releases the exhaust received from the conduit inlet.
F01N 1/08 - Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
F01N 13/20 - Exhaust or silencing apparatus characterised by constructional features having flared outlets, e.g. of fish-tail shape
A flow device for a mixer of an exhaust aftertreatment system. The flow device includes a plate and a plurality of conduits coupled to the plate. Each of the conduits includes a first sidewall extending outward of the plate, a second sidewall extending outward of the plate and opposing the first sidewall, a main wall extending from the plate and between the first sidewall and the second sidewall, a conduit inlet coplanar with the plate and that receives exhaust, and a conduit outlet forming an angle between 35 degrees and 145 degrees, inclusive, with the plate. The conduit outlet releases the exhaust received from the conduit inlet.
There is provided a turbine for a turbocharger, comprising: a turbine inlet passage configured to receive exhaust gas from an internal combustion engine, the exhaust gas received by the turbine inlet passage defining a turbine bulk flow; a turbine wheel chamber configured to receive the turbine bulk flow from the turbine inlet passage, the 5 turbine wheel chamber configured to contain a turbine wheel supported for rotation; a turbine outlet passage configured to receive the turbine bulk flow from the turbine wheel chamber, the turbine outlet passage being at least partially defined by a turbine outlet passage surface and defining a centreline; an auxiliary passage configured to receive a portion of the turbine bulk flow, the portion of the turbine bulk flow received by 10 the auxiliary passage defining an auxiliary flow; and a dosing module configured to deliver a spray of aftertreatment fluid into the turbine outlet passage; wherein the auxiliary passage is configured to direct the auxiliary flow along the turbine outlet passage surface in an auxiliary flow layer.
F01D 21/00 - Shutting-down of machines or engines, e.g. in emergencyRegulating, controlling, or safety means not otherwise provided for
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
There is a provided an exhaust gas conduit for an exhaust system of an internal combustion engine. The exhaust gas conduit includes a main passage for a main flow of exhaust gases passing through the exhaust gas conduit, a chamber configured to receive an aliquot of exhaust gases separated from the main flow of exhaust gases. A mounting point is provided in the chamber for mounting an exhaust gas sensor. The chamber being configured to modify the velocity and/or the pressure of exhaust gases passing therethrough.
An aftertreatment system includes an inlet conduit assembly, an outlet conduit assembly, and an aftertreatment component cartridge. The inlet conduit assembly includes an inlet body including an inlet body wall portion and an inlet coupling flange portion. The outlet conduit assembly includes an outlet body including an outlet body wall portion and an outlet coupling flange portion. The aftertreatment component cartridge includes an aftertreatment component housing and an adaptor. The adaptor includes a first flange portion and a second flange portion coupled to the aftertreatment component housing, and an adaptor body contacting the inlet coupling flange portion and the outlet coupling flange portion. The adaptor body includes a first base surface, a crown surface, a first indentation between the first base surface and the crown surface, and a first gasket comprising a portion disposed within the first indentation.
F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
F16L 23/04 - Flanged joints the flanges being connected by members tensioned in the radial plane
F16L 23/18 - Flanged joints characterised by the sealing means the sealing means being rings
F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
26.
ESTIMATING BIODIESEL BLEND USING VIRTUAL SENSORS AND VIRTUAL SENSING METHODS
A non-transitory computer-readable media has computer-readable instructions stored thereon that, when executed by at least one controller, cause the at least one controller to: control an amount of hydrocarbons provided upstream of a diesel oxidation catalyst (DOC); determine a first temperature of exhaust gas at an inlet of the DOC, the exhaust gas produced from combustion of fuel; determine a second temperature of the exhaust gas at an outlet of the DOC; calculate a lower heating value (LHV) of the fuel based on the first temperature, the second temperature, the amount of hydrocarbons, and a flow rate of the exhaust gas; and estimate a percentage of biodiesel in the fuel based on the LHV.
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
27.
EXHAUST AFTERTREATMENT SYSTEM INCLUDING MIXER WITH INJECTOR CONE
An exhaust aftertreatment system includes an introduction gas conduit, a dosing module, and a mixer. The introduction conduit is centered on a conduit axis. The dosing module is coupled to the introduction conduit and includes an injector. The injector is configured to provide a hydrocarbon fluid into the introduction conduit and is defined by an injection axis. The mixer includes a mixer body, a first aperture, an injector plate, and an injector cone. The mixer body is disposed within the introduction conduit and is configured to receive exhaust and the hydrocarbon fluid. The first aperture extends through the mixer body and is configured to facilitate flow of the exhaust through the mixer body. The injector plate is coupled to the mixer body along the first aperture. A portion of the injector plate is angled at a first opening angle away from the mixer body. The injector cone is positioned on the injector plate. The injector cone includes an injection aperture configured to facilitate flow of the hydrocarbon fluid through the injector cone and the injector plate.
There is disclosed a turbine dosing system for a turbocharger. The turbine dosing system comprises a turbine inlet passage, a turbine wheel chamber, a turbine outlet passage and a plurality of dosing modules. The turbine inlet passage is configured to receive exhaust gas from an internal combustion engine. The turbine wheel chamber configured to receive exhaust gas from the turbine inlet passage. The turbine wheel chamber contains a turbine wheel supported for rotation about a turbine wheel axis. The turbine wheel comprises an exducer which defines an exducer diameter. The turbine outlet passage is downstream of the turbine wheel chamber and is configured to receive exhaust gas from the turbine wheel chamber. The turbine outlet passage defines a flow axis which extends from a downstream end of the turbine wheel. The plurality of dosing modules are configured to inject aftertreatment fluid into exhaust gas in the turbine outlet passage.
An aftertreatment system includes a conduit configured to receive an exhaust from an engine and a valve assembly coupled to the conduit. The valve assembly includes a shaft and a valve plate coupled to the shaft. The aftertreatment system includes a dosing module configured to introduce a reductant into the exhaust in the conduit. The aftertreatment system includes a controller communicably coupled with the valve assembly and the dosing module. The controller includes a processing circuit. The controller is configured to determine a temperature of the exhaust. The controller is configured to calculate a ratio of an amount of energy in the exhaust to an amount of energy needed to decompose the reductant. The controller is configured to generate an actuation command. The controller is configured to transmit the actuation command to the valve assembly to move the valve plate from a first position to a second position.
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
There is disclosed a turbine dosing system for a turbocharger. The turbine dosing system comprises a turbine inlet passage (112), a turbine wheel chamber and a turbine outlet passage (116). The turbine inlet passage is configured to receive exhaust gas from an internal combustion engine. The turbine wheel chamber is configured to receive exhaust gas from the turbine inlet passage. The turbine wheel chamber contains a turbine wheel supported for rotation about a turbine wheel axis. The turbine wheel comprises an exducer defining an exducer diameter. The turbine outlet passage is downstream of the turbine wheel chamber and is configured to receive exhaust gas from the turbine wheel chamber. The turbine outlet passage is at least partly defined by a structure which comprises a dosing module mount (122) configured to receive a dosing module (32). The turbine outlet passage defines a flow axis which extends from a downstream end of the turbine wheel. The dosing module mount is located within around 10 exducer diameters, along the flow axis, downstream of the downstream end of the turbine wheel.
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
A mixer for an exhaust aftertreatment system includes a mixer body positioned such that an injection axis of an injector of a dosing module extends into the mixer body. The mixer body receives exhaust and treatment fluid. The mixer further includes a plurality of apertures extending through the mixer body. Each of the apertures facilitate flow of the exhaust and the treatment fluid through the mixer body. The mixer further includes a plurality of blades. Each of the blades are coupled to the mixer body along a portion of one of the apertures. Each of the blades extend radially outward from the mixer body. The mixer further includes a first end. The first end includes a plurality of tabs and a plurality of edge slots. Each of the edge slots is positioned between two of the tabs.
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
A decomposition chamber for an exhaust aftertreatment system includes an inlet conduit centered on an inlet conduit axis and configured to receive exhaust, a decomposition conduit coupled to the inlet conduit, an endcap coupled to the decomposition conduit, and an injector coupled to the endcap and configured to provide reductant into the decomposition conduit along an injection axis. The decomposition chamber includes a guide swirl mixer coupled to at least one of the inlet conduit or the endcap. The guide swirl mixer includes a first portion disposed within the inlet conduit, and a second portion disposed within the decomposition conduit such that the inlet conduit axis extends through the second portion. The second portion extends at least partially around the injection axis.
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
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01F 23/213 - Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
B01F 25/313 - Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
B01F 25/431 - Straight mixing tubes with baffles or obstructions that do not cause substantial pressure dropBaffles therefor
An exhaust aftertreatment assembly includes a tubular conduit and a mixer. The tubular conduit has a central axis. The mixer is disposed in the tubular conduit. The mixer includes a first mixing plate and a second mixing plate. The first mixing plate is crescent shaped. The first mixing plate includes a first plate convex edge and a first plate concave edge. The first plate convex edge is attached to the tubular conduit. The first plate concave edge intersects the first plate convex edge at a first plate first point and a first plate second point. The second mixing plate is crescent shaped. The second mixing plate includes a second plate convex edge and a second plate concave edge. The second plate convex edge is attached to the tubular conduit. The second plate concave edge intersects the second plate convex edge.
An exhaust mixer assembly includes a mixer housing, an inlet opening, an inlet plate, a support plate, a support plate opening, a conveying tube, an outlet plate, and an outlet plate opening. The mixer housing is coupled to the upstream housing. The inlet plate and the support plate define a first mixing chamber. The inlet opening is configured to receive exhaust from the upstream housing and deliver exhaust to the first mixing chamber. The support plate and the outlet plate define a second mixing chamber. The conveying tube is positioned in the second mixing chamber. The support plate opening is configured to receive treated exhaust from the first mixing chamber and deliver the treated exhaust to the second mixing chamber. The treated exhaust circumferentially flows through the second mixing chamber and through the conveying tube. The conveying tube delivers reductant to the outlet plate opening.
B01F 25/42 - Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
B01F 25/431 - Straight mixing tubes with baffles or obstructions that do not cause substantial pressure dropBaffles therefor
F01N 1/08 - Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
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
An exhaust conduit assembly includes: an exhaust conduit body defining an exhaust flow path; an injection aperture extending through the exhaust conduit body; and a doser mount portion including: an inlet port configured to receive a coolant, a channel configured to receive the coolant from the inlet port, at least a portion of the channel extending around at least a portion of the injection aperture, the channel including a first section and a second section, and an outlet port configured to receive the coolant from the channel. The doser mount portion defines a cavity configured to receive at least a portion of a dosing module and a ridge defines a base of the cavity, wherein the first portion of the channel is disposed adjacent to the cavity and the second portion of the channel is disposed adjacent to the ridge.
A controller for an exhaust aftertreatment system receives a pressure signal from a pressure sensor. The pressure sensor generates the pressure signal based on a pressure of treatment fluid in a downstream dosing module. The controller further determines a pressure measurement based on the pressure signal, determines a first injection amount based on the pressure measurement, and causes an upstream injector of an upstream dosing module to inject the treatment fluid according to the first injection amount. The controller further determines a second injection amount based on the pressure measurement and a resistance of a variable resistor and causes a downstream injector of a downstream dosing module to inject the treatment fluid according to the second injection amount.
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
37.
SYSTEMS AND METHODS FOR DUAL DOSING SYSTEM DISRUPTION DETECTION
An aftertreatment system comprises a first dosing system comprising a first doser, a first pressure sensor, and a first dosing pump and a second dosing system comprising a second doser, a second pressure sensor, and a second dosing pump, and a controller. The controller doses reductant to a SCR system. The controller determines a first pressure value associated with the first dosing system and a second pressure value associated with the second dosing system. The controller applies a target pressure override to the first doser. The controller determines a third pressure value associated with the first dosing system and a fourth pressure value associated with the second dosing system. The controller determines a difference between the third pressure value and the fourth pressure value. The controller compares the difference to a second threshold and generates an indication indicative of disruption in the first dosing system based on the comparison.
A mixing body assembly for an exhaust aftertreatment system that includes a housing defining an internal volume. The mixing body assembly includes a mixing inlet body that includes an inlet body and a transfer body disposed within the internal volume, coupled to the inlet body, and that receives the exhaust from the inlet body and treatment fluid from an injector of a dosing module. The mixing inlet body includes an extended body disposed within the internal volume, coupled to the transfer body, and that receives the exhaust and the treatment fluid from the transfer body. The extended body includes extended body first and second ends. The extended body second end has a first end portion separated from the extended body first end by a first length, and a second end portion separated from the extended body first end by a second length greater than the first length.
F01N 3/24 - 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 constructional aspects of converting apparatus
An exhaust gas aftertreatment system includes: an outlet housing body; an outlet sampling system including: a sampling bowl cooperating with the outlet housing body to define a sampling bowl cavity; and a sampling ring coupled to the sampling bowl and defining a sampling ring cavity, the sampling ring defining a plurality of sampling ring inlet apertures configured to receive a portion of exhaust gas from within the outlet housing body, the sampling ring configured to provide the portion of exhaust gas to the sampling ring cavity, the sampling ring cavity in exhaust gas providing communication with the sampling bowl.
An exhaust gas aftertreatment system includes a housing assembly, a first catalyst member, and a second catalyst member. The housing assembly includes an upstream housing, a decomposition housing, a distributing housing, and a catalyst member housing. The upstream housing is centered on an upstream housing axis. The decomposition housing is coupled to the upstream housing and configured to receive exhaust gas from the upstream housing. The distributing housing is coupled to the decomposition housing and configured to receive the exhaust gas from the decomposition housing. The catalyst member housing is coupled to the distributing housing and configured to receive the exhaust gas from the distributing housing. The catalyst member housing is centered on a catalyst member housing axis that is parallel to the upstream housing axis. The first catalyst member extends within the catalyst member housing.
F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
An assembly includes a first body, a second body, a fastener, and a nut. The first body includes an outer surface and an inner surface opposite the outer surface. The first body includes a first body through-hole that includes a first body threaded portion. The second body includes an outer surface and an inner surface opposite the outer surface. The second body includes a second body through-hole that is unthreaded. The fastener includes a fastener head and a fastener shank. The fastener shank extends through the first body through-hole and the second body through-hole. The fastener shank includes a fastener threaded portion located at least at a distal end of the fastener shank opposite the fastener head. The nut has a nut threaded portion. The nut threaded portion is engaged with the fastener threaded portion.
F16B 41/00 - Measures against loss of bolts, nuts, or pinsMeasures against unauthorised operation of bolts, nuts, or pins
F16L 23/036 - Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
42.
Engine health and oil consumption rate diagnostic using back pressure
An aftertreatment system includes a particulate filter configured to receive exhaust gas from an engine and a controller that measures an actual pressure drop across the particulate filter, determines an expected total ash accumulation rate in the particulate filter based on a current duty cycle of the engine, determines an expected pressure drop across the particulate filter based on the expected total ash accumulation rate, compares the expected pressure drop with the actual pressure drop, and determines whether an oil consumption rate in the engine is abnormal based on the comparison.
A controller for use in an aftertreatment system that includes a doser configured to dose reductant into a decomposition chamber and a pump configured to supply the reductant to the doser is configured to be operatively coupled to the doser and the pump and programmed to cause the pump and the doser to operate in an idle mode in which the pump supplies the reductant from a reductant tank to the doser at steady state, the doser does not dose the reductant, and the reductant supplied to the doser by the pump is recirculated to the reductant tank. The controller is also programmed to, while the pump and the doser operate in the idle mode, determine a first speed of the pump required to achieve a predetermined target pressure. The controller is also programmed to cause the pump and the doser to operate in a dosing mode.
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
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
44.
Real-time control of reductant droplet spray momentum and in-exhaust spray distribution
A system includes: a reductant injection system for injecting reductant into an exhaust gas based on an injection parameter or a supply parameter; and a controller configured to: access a current engine condition parameter, wherein the current engine condition parameter includes at least one of an engine fuel flow rate, an engine air flow rate, an engine boost pressure, an engine intake pressure, an engine load, an engine rotational speed, an engine cylinder temperature, an engine cylinder pressure, or an engine fuel pressure, determine one or more control parameters based on a control model and as a function of the accessed current engine condition parameter, and modify a value of the injection parameter or the supply parameter based on the one or more control parameters to control a reductant spray momentum, a reductant droplet momentum, or a reductant momentum vector.
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
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
F01N 9/00 - Electrical control of exhaust gas treating apparatus
45.
Aftertreatment system including preheating oxidation catalyst
An aftertreatment system for treating exhaust gas includes: an exhaust conduit configured to receive the exhaust gas; a preheating oxidation catalyst disposed in the exhaust conduit; a primary oxidation catalyst disposed in the exhaust conduit downstream of the preheating oxidation catalyst; a selective catalytic reduction system disposed in the exhaust conduit downstream of the primary oxidation catalyst; and a controller configured to: determine a temperature of the exhaust gas at an inlet of the selective catalytic reduction system, and in response to the temperature of the exhaust gas at the inlet of the selective catalytic reduction system being below a threshold temperature, cause hydrocarbons to be provided to the preheating oxidation catalyst or to the exhaust conduit at a location upstream of the preheating oxidation catalyst. The preheating oxidation catalyst catalyzes combustion of the hydrocarbons so as to increase the temperature of the exhaust gas to above the threshold temperature.
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
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
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 3/36 - Arrangements for supply of additional fuel
F01N 9/00 - Electrical control of exhaust gas treating apparatus
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
46.
TREATED SCR CATALYSTS WITH ENHANCED SULFUR RESISTANCE
An aftertreatment system for treating constituents of an exhaust gas generated by an engine includes: a selective catalytic reduction (SCR) system including a SCR catalyst; an oxidation catalyst disposed upstream of the SCR catalyst; and a controller configured to: determine an amount of SOx gases in the exhaust gas flowing through the aftertreatment system, and in response to the concentration of the SOx gases being above a threshold, cause heating of the SCR catalyst to an aging temperature in the presence of water to hydrothermally age the SCR catalyst.
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
B01J 29/72 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups containing iron group metals, noble metals or copper
An aftertreatment system includes a conduit and a mixer disposed in the conduit. The mixer includes a mixer body, an inlet cap, and an outlet flange. The mixer body includes an inlet end, a plurality of connectors arranged at the inlet end, and an outlet end downstream of the inlet end. The inlet cap is over the inlet end and includes a perforated plate, an inlet flange coupled to the perforated plate, and an annular plate. The perforated plate is coupled to the connectors and comprising a plurality of perforations. The annular plate is downstream of the perforated plate and coupled to the mixer body. The annular plate includes an aperture. The outlet flange includes an outlet flange body coupled to the outlet end, where the outlet flange body includes an inner edge and a flared portion extending upstream from the inner edge into the mixer body.
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
G01N 1/10 - Devices for withdrawing samples in the liquid or fluent state
B01F 25/313 - Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
B01F 25/431 - Straight mixing tubes with baffles or obstructions that do not cause substantial pressure dropBaffles therefor
An exhaust gas system includes: an engine-turbine exhaust gas conduit configured to receive exhaust gas from an engine; a turbocharger including a turbine coupled to the engine-turbine exhaust gas conduit; an injection housing coupled to the turbine and centered on an injection housing axis; a dosing module coupled to the injection housing and including an injector configured to dose reductant into the injection housing, the injector centered on an injector axis; and a bypass system including: a bypass inlet conduit coupled to the engine-turbine exhaust gas conduit, a bypass valve coupled to the bypass inlet conduit, and a bypass outlet conduit coupled to the bypass valve, the bypass outlet conduit centered on a bypass outlet conduit axis.
G09G 3/3225 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01F 23/213 - Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
B01F 25/314 - Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
B01F 27/112 - Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
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
F02B 37/18 - Control of the pumps by bypassing exhaust
49.
Systems and methods for controlling a dosing module
An exhaust aftertreatment system includes a first decomposition chamber that receives exhaust and treatment fluid, a first dosing module that includes a first injector that injects the treatment fluid into the first decomposition chamber, and a second decomposition chamber disposed downstream of the first decomposition chamber and that receives the exhaust and the treatment fluid from the first decomposition chamber. The exhaust aftertreatment system further includes a second dosing module that includes a second injector that injects the treatment fluid into the second decomposition chamber and a pressure sensor that generates a pressure signal based on a pressure of the treatment fluid in the second dosing module. The exhaust aftertreatment system further includes a variable resistor selectively switchable between multiple resistances.
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
An exhaust gas aftertreatment system includes an introduction gas conduit, a dosing module, a mixer, and an outlet flange. The introduction conduit is centered on a conduit center axis. The dosing module is coupled to the introduction conduit and includes an injector. The injector is configured to provide a treatment fluid into the introduction conduit and is defined by an injection axis. The mixer is disposed within the introduction conduit and includes a mixer body. The mixer body is configured to receive exhaust gas and the treatment fluid. The outlet flange includes an outlet flange body, an outlet flange opening, and a plurality of outlet flange perforations. The outlet flange body is centered on an outlet flange center axis. The outlet flange body includes an outlet flange body inner portion and an outlet flange body outer portion. The outlet flange body inner portion is coupled to the mixer body.
F01N 3/02 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
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
F01N 13/08 - Other arrangements or adaptations of exhaust conduits
51.
Dosing module for use in aftertreatment systems for internal combustion engines
A dosing module for an aftertreatment system includes: a housing; a dosing cartridge removably inserted in the housing, the dosing cartridge including a needle assembly; a cover coupled to the housing, the cover covering the dosing cartridge; an inlet port inserted in the housing, the inlet port configured to receive reductant and provide the reductant to the dosing cartridge; and a filter screw coupled to the inlet port such that the filter screw is interchangeable, the filter screw including a pin, the filter screw being compressible to provide compensation for fluid expansion.
F01N 3/02 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
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
F01N 9/00 - Electrical control of exhaust gas treating apparatus
F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
52.
AFTERTREATMENT COMPONENT CARTRIDGE FOR AN AFTERTREATMENT SYSTEM
An aftertreatment system includes an inlet conduit assembly, an aftertreatment component cartridge, and an outlet conduit assembly. The inlet conduit assembly receives an exhaust gas and includes an inlet coupling flange portion. The aftertreatment component cartridge is coupled to the inlet conduit assembly and receives the exhaust gas from the inlet conduit assembly. The aftertreatment component cartridge also includes an adaptor. The outlet conduit assembly is coupled to the aftertreatment component cartridge and receives the exhaust gas from the aftertreatment component cartridge. The outlet conduit assembly includes an outlet coupling flange portion. The inlet coupling flange portion, adaptor, and outlet coupling flange portion cooperate to suspend the aftertreatment component cartridge within the aftertreatment system.
F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
F16L 23/036 - Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
F16L 23/22 - Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal
An exhaust gas aftertreatment system includes an outlet housing body, an outlet housing fitting, an outlet sampling system, and an outlet sensor. The outlet sampling system includes a sampling bowl and a sampling ring. The sampling bowl is coupled to the outlet housing body and extends away from the outlet housing body so as to define a sampling bowl cavity between the sampling bowl and the outlet housing body. The sampling ring is coupled to the sampling bowl and separated from the outlet housing body by the sampling bowl. The sampling ring is coupled to the outlet housing fitting and defines a sampling ring cavity. The sampling ring includes a plurality of sampling ring inlet apertures and a connector. The sampling ring inlet apertures are each configured to receive exhaust gas from within the outlet housing body and provide the exhaust gas to the sampling ring cavity.
An exhaust gas aftertreatment system includes: a first decomposition chamber; a first dosing module coupled to the first decomposition chamber and configured to provide a first treatment fluid into the first decomposition chamber; a first conversion catalyst member; a second decomposition chamber; a second dosing module coupled to the second decomposition chamber and configured to provide a second treatment fluid into the second decomposition chamber; a second conversion catalyst member; and a third conversion catalyst member.
F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
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
A method can include controlling, by at least one controller, an amount of hydrocarbons provided upstream of a diesel oxidation catalyst. The method can include determining, by the at least one controller, a first temperature of exhaust gas at an inlet of the diesel oxidation catalyst. The exhaust gas can be produced from combustion of fuel. The method can include determining, by the at least one controller, a second temperature of the exhaust gas at an outlet of the diesel oxidation catalyst. The method can include calculating, by the at least one controller, a lower heating value of the fuel based on the first temperature, the second temperature, the amount of hydrocarbons, and a flow rate of the exhaust gas. The method can include estimating, by the at least one controller, a percentage of biodiesel in the fuel based on the lower heating value.
F02D 13/00 - Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
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
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
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 mixer includes a reducing fluid injector, a disc-shaped injector, an elastic mat, and a hollow mixing chamber. The reducing fluid injector is configured to spray a reducing fluid into an exhaust gas flow. The reducing fluid injector is arranged along an axis. The disc-shaped injector support extends around the axis. The elastic mat is disposed on the disc-shaped injector support. The hollow mixing chamber extends around the axis and disposed on the elastic mat and separated from the disc-shaped injector support by the elastic mat. The hollow mixing chamber is tapered.
B01F 23/213 - Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
B01F 25/313 - Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
B01F 25/314 - Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
F01N 3/24 - 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 constructional aspects of converting apparatus
A water drainage assembly for an aftertreatment system includes: a first tube configured to be coupled to an outlet conduit of the aftertreatment system; a second tube having a first end coupled to an outer surface of the first tube, a second end opposite the first end, and an intermediate portion located between the first end and the second end; and a baffle plate located in the second tube. The intermediate portion of the second tube surrounds an end portion of the first tube such that a volume is defined between the end portion of the first tube and the intermediate portion of the second tube. The second tube comprises a drain port configured to allow water to drain from the volume defined between the end portion of the first tube and the intermediate portion of the second tube.
An aftertreatment system includes a housing and a tube assembly. The housing has a peripheral wall including an outer surface, an inner surface defining a passage configured to receive a flow of exhaust gas, and a peripheral wall aperture. The tube assembly includes a fitting assembly and a conveying tube. The fitting assembly includes a fitting body and a fitting tube. The fitting body includes a fitting body aperture, an upper surface, and a lower surface. The fitting body is inserted within the peripheral wall aperture and coupled to the outer surface. The fitting tube extends from the lower surface and is disposed in the passage and includes a fitting tube aperture at an inner end. The conveying tube is positioned partially within the fitting body aperture and extends outward from the fitting body and includes a conveying tube aperture at an inner end.
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
F01N 13/20 - Exhaust or silencing apparatus characterised by constructional features having flared outlets, e.g. of fish-tail shape
G01M 15/10 - Testing internal-combustion engines by monitoring exhaust gases
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
G01P 5/165 - Arrangements or constructions of Pitot tubes
An aftertreatment system includes a housing and a tube assembly. The housing has a peripheral wall including an outer surface, an inner surface defining a passage configured to receive a flow of exhaust gas, and a peripheral wall aperture. The tube assembly includes a fitting assembly and a conveying tube. The fitting assembly includes a fitting body and a fitting tube. The fitting body includes a fitting body aperture, an upper surface, and a lower surface. The fitting body is inserted within the peripheral wall aperture and coupled to the outer surface. The fitting tube extends from the lower surface and is disposed in the passage and includes a fitting tube aperture at an inner end. The conveying tube is positioned partially within the fitting body aperture and extends outward from the fitting body and includes a conveying tube aperture at an inner end.
G01L 19/00 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
62.
AFTERTREATMENT SYSTEM INCLUDING BRACKET FOR COUPLING TO AN AFTERTREATMENT SYSTEM COMPONENT
An aftertreatment system includes a first aftertreatment system component, a second aftertreatment system component, a third aftertreatment system component, a first bracket, and a second bracket. The second aftertreatment system component has a first end and a second end. The first end is connected to the first aftertreatment system component. The second end of the second aftertreatment system component is connected to the third aftertreatment system component. The first bracket has at least a first end and a second end. The first end of the first bracket is coupled to the first aftertreatment system component or the third aftertreatment system component. The second end of the first bracket may be coupled to the second bracket or an isolator. The second bracket may be coupled to the first bracket or may be connected to an isolator and assist in supporting the second aftertreatment system component.
An aftertreatment system includes an upstream particulate filter, a decomposition chamber, a decomposition chamber dosing module, a first downstream catalyst member, and a downstream particulate filter. The decomposition chamber is positioned downstream of the upstream particulate filter. The decomposition chamber dosing module is coupled to the decomposition chamber and is configured to provide downstream treatment fluid into the decomposition chamber. The first downstream catalyst member is positioned downstream of the decomposition chamber and comprises a first downstream catalyst substrate configured to facilitate treatment of exhaust gas. The downstream particulate filter positioned downstream of the first downstream catalyst member.
B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
B01J 35/56 - Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
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
64.
A BRACKET ASSEMBLY FOR SECURING A COMPONENT OF AN AFTERTREATMENT SYSTEM
An aftertreatment system includes a bracket assembly for securing a component of an aftertreatment system to a structure. The bracket assembly includes a base bracket and a mounting bracket. The base flange includes a first base flange including a first base flange slot and a second base flange including a second base flange slot. The mounting bracket includes a first mounting flange including a first mounting flange slot and a second mounting flange including a second mounting flange slot. The mounting bracket further includes a mounting wall. The mounting wall extends from the first mounting flange to the second mounting flange. The base bracket is configured to receive the first mounting bracket. A portion of the first base flange slot overlaps a portion of the first mounting flange slot. A portion of the second base flange overlaps a portion of the second mounting slot.
F16B 2/08 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands
F16L 3/12 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing
F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
F16L 23/028 - Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
F16L 3/10 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two members engaging the pipe, cable or protective tubing
A controller to diagnose a selective catalytic reduction (SCR) system of an aftertreatment system executes computer-readable instructions to determine a first NOx value at an outlet of the SCR system, determine an ammonia (NH3) slip value based at least in part on the first NOx value, determine a second NOx value of a healthy SCR model, determine a third NOx value of a degraded SCR model, compute at least one degradation factor based on the ammonia slip, the first NOx value, the second NOx value, and the third NOx value, and diagnose a normal operation or an abnormal operation of the SCR system based on the at least one degradation factor.
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
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
66.
AFTERTREATMENT SYSTEM INCLUDING MIXER WITH EXHAUST SAMPLING FLANGE
An aftertreatment system includes an introduction conduit and a mixer disposed within the introduction conduit. The introduction conduit is centered on a mixer body center axis. The mixer includes a mixer body, an exhaust sampling flange, an outlet flange, and an outlet tube. The exhaust sampling flange is coupled to the mixer body at a location adjacent to a second end of the mixer body. The exhaust sampling flange includes exhaust sampling flange apertures arranged in an array that extends circumferentially around the mixer body center axis. The outlet flange is coupled to the second end downstream of the exhaust sampling flange. The outlet flange includes an outlet flange aperture. The outlet tube is coupled to the outlet flange. The outlet tube is in fluid communication with at least one of the exhaust sampling flange apertures. The outlet tube extends over a portion of the outlet flange aperture.
B01F 25/313 - Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
B01F 25/431 - Straight mixing tubes with baffles or obstructions that do not cause substantial pressure dropBaffles therefor
B01F 25/00 - Flow mixersMixers for falling materials, e.g. solid particles
An aftertreatment system includes an inlet body, a cartridge, and an outlet body. The inlet body includes an inlet body wall and an inlet engagement member. The inlet engagement member includes an inlet engagement member wall and an inlet coupling flange. The inlet coupling flange extends in a downstream direction from the inlet engagement member wall. The cartridge includes a cartridge wall and an adaptor that extends away from the cartridge wall. The outlet body includes an outlet body wall and an outlet engagement member. The outlet engagement member includes an outlet engagement member wall and an outlet coupling flange. The outlet coupling flange extends in an upstream direction from the outlet engagement member wall and towards the adaptor such that the adaptor is disposed between the inlet coupling flange and the outlet coupling flange.
An aftertreatment system includes an inlet body, a cartridge, and an outlet body. The inlet body includes an inlet body wall and an inlet engagement member. The inlet engagement member includes an inlet engagement member wall and an inlet coupling flange. The inlet coupling flange extends in a downstream direction from the inlet engagement member wall. The cartridge includes a cartridge wall and an adaptor that extends away from the cartridge wall. The outlet body includes an outlet body wall and an outlet engagement member. The outlet engagement member includes an outlet engagement member wall and an outlet coupling flange. The outlet coupling flange extends in an upstream direction from the outlet engagement member wall and towards the adaptor such that the adaptor is disposed between the inlet coupling flange and the outlet coupling flange.
F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
69.
Systems and methods for determining exhibited useful life of sensors in monitored systems
A method executed by at least one server, comprising: receiving, from a first monitored system comprising an internal combustion engine and a first sensor, a first signal associated with a first occurrence and a second occurrence of an internal combustion engine event and first measurement data of the first sensor; determining a first measurement from the first measurement data and a second measurement from the first measurement data based on the first and second occurrences, respectively; determining a reference measurement; determining a first reference deviation; determining a second reference deviation; after determining the first reference deviation is less than a first reference threshold and the second reference deviation is less than a second reference threshold, determining a measurement deviation; comparing the measurement deviation to a measurement threshold; and after determining the measurement deviation satisfies the measurement threshold, determining a first exhibited useful life of the first sensor.
A system, method, and apparatus for sensor tampering detection are provided. An aftertreatment system comprises a first leg comprising a first Selective Catalytic Reduction (SCR) system, a first doser, and a first NOx sensor, a second leg comprising a second SCR system, a second doser, and a second NOx sensor, and a controller. The controller determines satisfaction of enabling conditions. The controller doses reductant to the first and second SCR systems. The controller determines NOx values of the first SCR system and the second SCR system. The controller adjust the dosing of the first SCR system for a time period. The controller measures NOx values of the first SCR system and the second SCR system. The controller determines a difference between the third and first NOx values and a difference between the fourth and second NOx values. The controller generates an indication regarding whether the first NOx sensor is displaced.
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
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
71.
SYSTEMS AND METHODS FOR SENSOR TAMPERING DETECTION
A system, method, and apparatus for sensor tampering detection are provided. An aftertreatment system comprises a first leg comprising a first Selective Catalytic Reduction (SCR) system, a first doser, and a first NOx sensor, a second leg comprising a second SCR system, a second doser, and a second NOx sensor, and a controller. The controller determines satisfaction of enabling conditions. The controller doses reductant to the first and second SCR systems. The controller determines NOx values of the first SCR system and the second SCR system. The controller adjust the dosing of the first SCR system for a time period. The controller measures NOx values of the first SCR system and the second SCR system. The controller determines a difference between the third and first NOx values and a difference between the fourth and second NOx values. The controller generates an indication regarding whether the first NOx sensor is displaced.
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
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 41/22 - Safety or indicating devices for abnormal conditions
72.
SYSTEMS INCLUDING A HYDROGEN INTERNAL COMBUSTION ENGINE AND AFTERTREATMENT SYSTEM
A system includes; a hydrogen internal combustion engine configured to produce exhaust; an aftertreatment system in exhaust receiving communication with the hydrogen internal combustion engine, the aftertreatment system comprising a catalyst member; a sensor coupled to the aftertreatment system; and a controller configured to: receive, from the sensor, data corresponding to a characteristic of the aftertreatment system, determine, based on the characteristic, a performance value corresponding to the catalyst member, compare the performance value to a threshold, cause the hydrogen internal combustion engine to operate in a first engine operating mode when the performance value does not exceed the threshold, and cause the hydrogen internal combustion engine to operate in a second engine operating mode when the performance value exceeds the threshold.
F01N 3/029 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles by adding non-fuel substances to exhaust
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
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
F01N 9/00 - Electrical control of exhaust gas treating apparatus
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
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
A vehicle exhaust system includes an upstream exhaust component comprising at least a first catalyst having a first outer dimension, a downstream exhaust component comprising at least a second catalyst having a second outer dimension, and a mixer that connects the upstream and downstream exhaust components. The mixer comprises a first portion associated with an outlet from the first catalyst and a second portion associated with an inlet to the second catalyst. The first portion includes a swirl component having a first length and the second portion includes an additional component having a second length. A connection interface between the first and second portions allows the upstream and downstream exhaust components to be arranged in different positions relative to each other. A combined length of the first and second lengths is adjusted relative to the first and second outer dimensions to achieve a desired position of the upstream and downstream exhaust components relative to each other.
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
A decomposition chamber for an aftertreatment system includes an outer conduit that has an inner surface, a doser mount coupled to the outer conduit, and an inner conduit disposed within the outer conduit. The inner conduit has an upstream end, a downstream end, and an outer surface that is spaced from the inner surface of the outer conduit. The inner conduit includes an opening aligned with the doser mount and disposed closer to the upstream end than to the downstream end, and a lip extending along a portion of the opening and angled partially outward and partially toward the upstream end.
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
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
A mixer includes a frustoconical wall, a first guide first fin, a first guide second fin, a second guide first fin, a second guide second fin, a first exhaust gas inlet opening, and a second exhaust gas inlet opening. The first guide first fin extends outwardly from the frustoconical wall. The first guide second fin extends outwardly from the frustoconical wall. The second guide first fin extends inwardly from the frustoconical wall. The second guide second fin extends inwardly from the frustoconical wall. The first exhaust gas inlet opening is disposed between the first guide first fin and the second guide first fin. The second exhaust gas inlet opening is disposed between the first guide second fin and the second guide second fin.
A system, method, and apparatus for managing mass flow split in a multi-leg aftertreatment system are provided. A system can include an aftertreatment system comprising a first leg and a second leg and a controller. The controller estimates a first mass flow rate in the first leg and a second mass flow rate in the second leg. The controller computes an estimated total mass flow rate based on the estimated first and second mass flow rates. In response to determining that the estimated total mass flow rate is greater than an engine exhaust mass flow rate, the controller computes a correction factor. The controller estimates a corrected first and second mass flow rates in the first and second legs using the correction factor. The controller adjusts at least one of a reductant dosing, hydrocarbon dosing, or soot load estimation based on the corrected first and second mass flow rates.
A reductant delivery system designed for quickly thawing reductant includes a reductant pump. The reductant pump includes a filter housing, a pump, a filter cartridge, a cover, and a startup heater. The filter housing includes a filter head, a pump chamber, and a transfer channel. The cover is coupled to the filter head to define a filter head cavity. The pump provides reductant from the pump chamber to the transfer channel. The filter cartridge includes a filter cartridge cavity within the filter head cavity. The startup heater is positioned within the filter cartridge cavity. The reductant delivery system further includes a reductant delivery system controller and a main tank that stores reductant and includes a lift pump and a temperature sensor. The temperature sensor is communicatively coupled to the reductant delivery system controller. The reductant delivery system controller receives a signal from the temperature sensor.
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
A system for controlling reductant spray momentum for a target spray distribution includes an exhaust system having an exhaust conduit with exhaust flowing therethrough, a reductant injection system for injecting reductant into the exhaust flowing through the exhaust system based on one or more injection parameters, a reductant supply system for supplying reductant to the reductant injection system based on one or more supply parameters, and a controller. The controller is configured to access current vehicle, engine, exhaust, or reductant condition parameters, determine one or more control parameters based on a control model and the accessed current vehicle, engine, exhaust, or reductant condition parameters, and modify a value of the one or more injection parameters or the one or more supply parameters to control the reductant spray.
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
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
F01N 9/00 - Electrical control of exhaust gas treating apparatus
80.
Aftertreatment system component with integrated support rods
An exhaust gas aftertreatment system includes a first decomposition chamber, a first dosing module, a first conversion catalyst member, a second decomposition chamber, a second dosing module, a second conversion catalyst member, and a third conversion catalyst member. The first decomposition chamber is configured to receive an exhaust gas. The first dosing module is coupled to the first decomposition chamber and configured to provide a first treatment fluid into the first decomposition chamber. The first conversion catalyst member is configured to receive a mixture of the first treatment fluid and the exhaust gas, from the first decomposition chamber. The second decomposition chamber is configured to receive the exhaust gas from the first conversion catalyst member. The second dosing module is coupled to the second decomposition chamber and configured to provide a second treatment fluid into the second decomposition chamber.
F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
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
An aftertreatment system includes: a first exhaust gas path comprising a heater; a second exhaust gas path comprising a first decomposition chamber configured to receive reductant and a first selective catalytic reduction catalyst downstream of the first decomposition chamber; a combined exhaust gas path downstream of the first exhaust gas path and the second exhaust gas path, the combined exhaust gas path configured to receive exhaust gas from both the first exhaust gas path and the second exhaust gas path; a selector valve configured to divert the exhaust gas between the first exhaust gas path and the second exhaust gas path based on a temperature of the exhaust gas; and a controller programmed to control the selector valve.
F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
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
F01N 9/00 - Electrical control of exhaust gas treating apparatus
F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
F01N 13/08 - Other arrangements or adaptations of exhaust conduits
G05D 7/06 - Control of flow characterised by the use of electric means
There is disclosed a method of operating an exhaust system for an internal combustion engine. The exhaust system comprises: a turbine, a dosing module, which is configured to deliver an aftertreatment fluid to the exhaust gas at a position downstream of the turbine wheel, and at least one of a variable geometry mechanism configured to control the flow of exhaust gas delivered to the turbine wheel and a bypass control valve configured to bypass a portion of the exhaust gas. The method comprises: determining a current property of the exhaust gas at a position downstream of the turbine wheel; determining a difference between the current property of the exhaust gas at the position downstream of the turbine wheel and a reference property of the exhaust gas at the position downstream of the turbine wheel; andin response to the difference, adjusting the at least one of the variable geometry mechanism and the bypass control valve.
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
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
F02B 37/18 - Control of the pumps by bypassing exhaust
F02D 41/02 - Circuit arrangements for generating control signals
An exhaust gas aftertreatment system includes an exhaust gas conduit a mixer, and a plurality of flow disrupters. The exhaust gas conduit is centered on a conduit center axis and includes an inner surface. The mixer includes a mixer body and an upstream vane plate. The upstream vane plate has a plurality of upstream vanes. At least one of the upstream vanes is coupled to the mixer body. The flow disrupters are disposed downstream of the mixer and circumferentially around the conduit center axis. Each of the flow disrupters is coupled to the exhaust gas conduit or integrally formed with the exhaust gas conduit. Each of the flow disrupters extends inwardly from the inner surface.
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
B01F 23/213 - Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
B01F 25/10 - Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
B01F 25/314 - Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
B01F 25/431 - Straight mixing tubes with baffles or obstructions that do not cause substantial pressure dropBaffles therefor
B01F 25/452 - Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
An exhaust aftertreatment assembly includes a catalyst housing and a shell. The catalyst housing is configured to contain at least one catalyst therein. The shell is coupled to the catalyst housing. The shell includes an end cap fixed to the catalyst housing and a mounting bracket monolithically formed with the end cap. The mounting bracket extends radially away from the end cap. The mounting bracket includes a mounting portion and a lift portion. The mounting portion defines a first mounting opening that is structured to receive a first fastener. The lift portion defines a lift opening that is structured to receive a portion of a lifting arm.
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 13/18 - Construction facilitating manufacture, assembly or disassembly
86.
EXHAUST AFTERTREATMENT SYSTEM INCLUDING MIXER WITH INJECTOR CONE
An exhaust aftertreatment system includes an introduction gas conduit, a dosing module, and a mixer. The introduction conduit is centered on a conduit axis. The dosing module is coupled to the introduction conduit and includes an injector. The injector is configured to provide a hydrocarbon fluid into the introduction conduit and is defined by an injection axis. The mixer includes a mixer body, a first aperture, an injector plate, and an injector cone. The mixer body is disposed within the introduction conduit and is configured to receive exhaust and the hydrocarbon fluid. The first aperture extends through the mixer body and is configured to facilitate flow of the exhaust through the mixer body. The injector plate is coupled to the mixer body along the first aperture. A portion of the injector plate is angled at a first opening angle away from the mixer body. The injector cone is positioned on the injector plate. The injector cone includes an injection aperture configured to facilitate flow of the hydrocarbon fluid through the injector cone and the injector plate.
B01F 25/313 - Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
An electrical connector includes: a male connector comprising a wire connection portion configured to be connected to a wire, and a pin connection portion configured to contact a conductor pin in an electrically conductive manner; a collar comprising a collar cylindrical body portion and a collar outer flange having a first surface and a second surface; a nut comprising a nut cylindrical body portion and a nut inner flange having a first surface that faces the second surface of the collar outer flange; a first seal that surrounds the collar cylindrical body portion and is positioned between the second surface of the collar outer flange and the first surface of the nut inner flange; and a second seal that surrounds the pin connection portion of the male connector and is positioned between an end surface of the nut cylindrical body portion and a first surface of the wire connection portion.
H01R 13/04 - Pins or blades for co-operation with sockets
H01R 24/28 - Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
F01N 3/22 - Control of additional air supply only, e.g. using by-passes or variable air pump drives
H01R 24/38 - Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
H01R 24/58 - Contacts spaced along longitudinal axis of engagement
88.
Electrical connector and method of making an electrical connection
An electrical connector includes: a male connector comprising a wire connection portion configured to be connected to a wire, and a pin connection portion configured to contact a conductor pin in an electrically conductive manner; a collar comprising a collar cylindrical body portion and a collar outer flange having a first surface and a second surface; a nut comprising a nut cylindrical body portion and a nut inner flange having a first surface that faces the second surface of the collar outer flange; a first seal that surrounds the collar cylindrical body portion and is positioned between the second surface of the collar outer flange and the first surface of the nut inner flange; and a second seal that surrounds the pin connection portion of the male connector and is positioned between an end surface of the nut cylindrical body portion and a first surface of the wire connection portion.
H01R 4/38 - Clamped connectionsSpring connections using a clamping member acted on by screw or nut
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
H01R 13/434 - Securing in a demountable manner by resilient locking means on the contact membersSecuring in a demountable manner by locking means on resilient contact members by separate resilient locking means on contact member, e.g. retainer collar or ring around contact member
H01R 13/52 - Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
H01R 43/00 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
H01R 43/02 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
H01R 43/04 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
89.
Electrical connector including tubular wire connection portion and pin connection portion
An electrical connector includes a tubular wire connection portion having recess in which a wire is insertable. The recess extends in a first direction. The tubular wire connection portion crimps onto the wire. The electrical connector further includes a pin connection portion having first and second projections extending from the tubular wire connection portion, a first through hole that extends through the first projection, a second through hole that extends through the second projection, and a third through hole that is defined by the first projection and the second projection and extends in a direction transverse to the first and second through holes. The first and second through holes receive a fastener and move towards each other upon fastening of the fastener. The third through hole receives a pin and clamps the pin when the first and second through holes are moved towards each other by the fastener.
H01R 13/639 - Additional means for holding or locking coupling parts together after engagement
H01R 4/20 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one anotherMeans for effecting or maintaining such contactElectrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
A mixer for an exhaust aftertreatment system includes a mixer body positioned such that an injection axis of an injector of a dosing module extends into the mixer body. The mixer body receives exhaust and treatment fluid. The mixer further includes a plurality of apertures extending through the mixer body. Each of the apertures facilitate flow of the exhaust and the treatment fluid through the mixer body. The mixer further includes a plurality of blades. Each of the blades are coupled to the mixer body along a portion of one of the apertures. Each of the blades extend radially outward from the mixer body. The mixer further includes a first end. The first end includes a plurality of tabs and a plurality of edge slots. Each of the edge slots is positioned between two of the tabs.
An aftertreatment system for treating constituents of an exhaust gas includes: a housing defining a first internal volume and a second internal volume; an oxidation catalyst in the first internal volume and extending along a first axis, the oxidation catalyst configured to receive at least a portion of the exhaust gas via an inlet conduit fluidly coupled to the oxidation catalyst; a filter in the first internal volume and extending along a second axis parallel to and offset from the first axis, wherein an outlet of the filter is disposed within the second internal volume and configured to emit the exhaust gas into the second internal volume; at least one selective catalytic reduction (SCR) catalyst in the second internal volume and extending along a third axis that is perpendicular to the first axis; and a decomposition tube in the second internal volume in a direction parallel to the third axis.
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 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
F01N 3/029 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles by adding non-fuel substances to exhaust
F01N 3/033 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
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
F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
92.
VEHICLE SYSTEM WITH INJECTION HOUSING AND TURBOCHARGER HAVING MOTOR
A vehicle system includes a turbocharger having a turbine that receives exhaust from an engine-turbine exhaust conduit, a shaft coupled to the turbine, and a motor coupled to the shaft. The vehicle system further includes a controller that causes the motor to rotate the shaft. The vehicle system further includes an injection housing directly coupled to the turbine or to a turbine-housing exhaust conduit that is directly coupled to the turbine. The injection housing receives the exhaust from the turbine or from the turbine-housing exhaust conduit. The vehicle system further includes a dosing module coupled to the injection housing. The dosing module includes an injector configured to inject treatment fluid into the injection housing.
F02B 37/18 - Control of the pumps by bypassing exhaust
B01F 23/213 - Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
B01F 25/314 - Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
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
93.
SYSTEMS AND METHODS FOR DETERMINING AN EFFICIENCY VALUE ASSOCIATED WITH A CATALYST MEMBER
A system comprising an aftertreatment system comprising: a catalyst member, and a first exhaust conduit upstream of the catalyst member; a first temperature sensor operatively coupled to the catalyst member; a flow sensor coupled to the first exhaust conduit; and a controller. The controller determines a temperature of the catalyst member, a flow rate of exhaust within the first exhaust conduit, and a space velocity of the exhaust within the catalyst member. The controller determines a first degradation value indicative of a degradation of the catalyst member. The controller determines a first difference between the first degradation value and a first degradation reference value and a second difference between the first degradation value and a second degradation reference value. After determining that the first difference is less than the second difference, the controller selects a first calibration metric. The controller determines a first efficiency value associated with the catalyst member.
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
At least one server comprising at least one processor coupled to at least one memory storing instructions. The server can receive a first signal from a first monitored system comprising an internal combustion engine and a first sensor, the first signal associated with a first occurrence of an internal combustion engine event, a second occurrence of the internal combustion engine event, and first measurement data of the first sensor. The server can determine a first measurement from the first measurement data. The server can determine a second measurement from the first measurement data. The server can determine a measurement deviation between the first measurement and the second measurement. The server can compare the measurement deviation to a stored measurement threshold. The server can determine a first exhibited useful life of the first sensor based on the measurement deviation and at least one of the first measurement or the second measurement.
At least one server comprising at least one processor coupled to at least one memory storing instructions. The server can receive a first signal from a first monitored system comprising an internal combustion engine and a first sensor, the first signal associated with a first occurrence of an internal combustion engine event, a second occurrence of the internal combustion engine event, and first measurement data of the first sensor. The server can determine a first measurement from the first measurement data. The server can determine a second measurement from the first measurement data. The server can determine a measurement deviation between the first measurement and the second measurement. The server can compare the measurement deviation to a stored measurement threshold. The server can determine a first exhibited useful life of the first sensor based on the measurement deviation and at least one of the first measurement or the second measurement.
A controller for a vehicle includes at least one processor and at least one memory storing instructions that, when executed by the processor, cause the controller to perform various operations. The operations include determining that a power loss to the controller has occurred. In response to the determination that the power loss has occurred, the operations are structured to determine whether a key switch associated with an engine of the vehicle is on; and, when the key switch is on, save operating data to a ferroelectric random access memory (TRAM) coupled to the controller.
A doser mount includes an annular body portion, a plurality of legs, and a plurality of projections. The annular body portion defines a central cavity. The plurality of legs protrude from a lower surface of the annular body portion and are configured to be coupled to an outer surface of an exhaust conduit. The plurality of projections extend from an upper surface of the annular body at a plurality of circumferential positions of the upper surface of the annular body.
An exhaust conduit assembly includes an exhaust conduit body, an injection aperture, and a doser mount portion. The exhaust conduit body defines an exhaust flow path. The injection aperture extends through the exhaust conduit body. The doser mount portion includes an inlet port, a channel, and an outlet port. The inlet port is configured to receive a coolant. The channel is configured to receive the coolant from the inlet port. At least a portion of the channel extends around at least a portion of the injection aperture. The outlet port is configured to receive the coolant from the channel.
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
F01N 3/02 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
The exhaust of internal combustion engines, such as diesel engines, includes nitrogen oxide (NOx) compounds. It is desirable to reduce NOx emissions to comply with environmental regulations, for example. To reduce NOx emissions, a reductant may be dosed into the exhaust by a closer assembly within an aftertreatment system. The reductant facilitates conversion of a portion of the exhaust into non-NOx emissions, such as nitrogen (N2), carbon dioxide (CO2), and water (H20), thereby reducing NOx emissions. These aftertreatment systems may include a pressure sensor and a temperature sensor that obtain readings from reductant that is'dosed into the exhaust. A doser assembly includes a doser housing and a doser located at least partially within the doser housing. The doser assembly also includes a sensor assembly that includes a pressure sensor assembly having a pressure sensor and a temperature sensor assembly having a temperature sensor.
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
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
An exhaust gas system includes an engine-turbine exhaust gas conduit, a turbocharger, a turbine-housing exhaust gas conduit, an injection housing, a dosing module, and a bypass system. The engine-turbine exhaust gas conduit is configured to receive exhaust gas. The turbocharger includes a turbine. The turbine is coupled to the engine-turbine exhaust gas conduit. The turbine-housing exhaust gas conduit is coupled to the turbine. The injection housing is coupled to the turbine-housing exhaust gas conduit and centered on an injection housing axis. The dosing module is coupled to the injection housing and includes an injector. The injector is configured to dose reductant into the injection housing. The injector is centered on an injector axis. The bypass system includes a bypass inlet conduit, a bypass valve, and a bypass outlet conduit. The bypass inlet conduit is coupled to the engine-turbine exhaust gas conduit.
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
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B01F 23/213 - Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
B01F 25/314 - Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
B01F 27/112 - Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
F02B 37/18 - Control of the pumps by bypassing exhaust
G09G 3/3225 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
