Methods and systems for a lock assembly for a linear actuator. The lock assembly includes a ball nut having one or more rows of lock protrusions extending axially from an external circumference of the ball nut. A lock rotor encircles the ball nut, the lock rotor having a row of ridge protrusions extending axially inward from an internal circumference. In a lock position, the ridge protrusions are arranged between locking protrusions. In an unlocked position, the ridge protrusions are arranged between adjacent locking protrusions.
A flame arrestor screw for a solenoid operated gas admission valve. The flame arrestor screw may include a screw body having a first end and an open end. The flame arrestor screw may include a gas passage extending from the open end along a longitudinal axis of the screw body and terminating at a terminal end within the screw body. A through hole may extend through the screw body transverse to the gas passage and in fluid communication with the gas passage.
Embodiments of the present disclosure relate to a system including a controller, a position sensor, and an emulator circuit. The controller is configured to output an AC excitation signal and receive a first AC response signal and a second AC response signal. The controller is configured to determine a position of an effector based on the first AC response signal and the second AC response signal. The position sensor is configured to be connected to the effector, and the position sensor is configured to output a position signal based on the position of the effector. The emulator circuit is configured to modulate the amplitude and frequency of the position signal based on the AC excitation signal to produce the first AC response signal and the second AC response signal.
Methods and systems for a variable differential transformer (VDT) system. The VDT system includes a primary coil to receive a power input, the primary coil balanced on opposing sides by two secondary coils. In response to movement of the core assembly, the secondary coils generate an induced voltage based on a voltage in the primary coil. A control system for measuring an output of the VDT includes a summing circuit to receive an output from two secondary coils. For instance, each of the two secondary coils generate an induced voltage in response changes in position of the core assembly relative to the primary coil and the two secondary coils. A voltage offset circuit adds a voltage offset value to a summing circuit output, which is transmitted to a single rail bias op-amp rectifier circuit.
H01F 29/10 - Variable transformers or inductances not covered by group with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit
G01D 5/22 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
Methods and systems for a variable differential transformer (VDT) system. The VDT system includes a primary coil to receive a power input, the primary coil balanced on opposing sides by two secondary coils. In response to movement of the core assembly, the secondary coils generate an induced voltage based on a voltage in the primary coil. A control system for measuring an output of the VDT includes a summing circuit to receive an output from two secondary coils. For instance, each of the two secondary coils generate an induced voltage in response changes in position of the core assembly relative to the primary coil and the two secondary coils. A voltage offset circuit adds a voltage offset value to a summing circuit output, which is transmitted to a single rail bias op-amp rectifier circuit.
G01D 5/22 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
An actuator for a control surface is provided. The actuator includes a frame, an electric motor, an epicyclic gear, a power-off brake, a power-on brake, and a unidirectional bearing. A sun gear is operably coupled to an output of the motor. A carrier is couplable to the control surface such that rotation of the carrier in a first direction transitions the control surface toward the deployed position and rotation of the carrier in a second direction transitions the control surface toward the stowed position. The power-off brake couples to the sun gear to ground the sun gear when deenergized. The power-on brake couples to the ring gear to ground the ring gear when energized. When the power-on brake is deenergized, the unidirectional bearing permits the ring gear to rotate in the second direction and prevents the ring gear from rotating in the first direction.
F16H 3/54 - Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears one of the central gears being internally toothed and the other externally toothed
B64C 13/34 - Transmitting means without power amplification or where power amplification is irrelevant mechanical using toothed gearing
F16H 61/12 - Detecting malfunction or potential malfunction, e.g. fail safe
An actuator for a control surface is provided. The actuator includes a frame, an electric motor, an epicyclic gear, a power-off brake, a power-on brake, and a unidirectional bearing. A sun gear is operably coupled to an output of the motor. A carrier is couplable to the control surface such that rotation of the carrier in a first direction transitions the control surface toward the deployed position and rotation of the carrier in a second direction transitions the control surface toward the stowed position. The power-off brake couples to the sun gear to ground the sun gear when deenergized. The power-on brake couples to the ring gear to ground the ring gear when energized. When the power-on brake is deenergized, the unidirectional bearing permits the ring gear to rotate in the second direction and prevents the ring gear from rotating in the first direction.
A system and method of providing prime reliability of a primary fuel manifold upon failure of a primary fuel metering system by providing metered fuel from a secondary fuel metering system are provided. The system utilizes a transfer electro-hydraulic servo valve (EHSV), a discharge select valve (DSV) coupled to the EHSV, and a pair of throttling valves positioned between secondary fuel metering system and the primary and secondary fuel manifolds. The DSV has a multi-land piston that switches a control pressure and a shutoff pressure between the pair of throttling valves to transfer the supply of metered fuel of the secondary fuel metering system from the secondary fuel manifold to the primary fuel manifold. The output pressurizing valve of the failed primary fuel metering system is also closed to isolate the failed primary fuel metering system from the primary fuel manifold.
The subject matter of this specification can be embodied in, among other things, method for testing operation of a thrust reverser actuator lock includes determining, by a controller, that an actuator output of a controllable actuator is at a predetermined first position, locking, by the controller, an actuator lock configured to prevent movement of the actuator output of an actuator away from the predetermined first position, initiating, by the controller, actuation of the actuator output away from the predetermined first position, determining, by the controller based on a position feedback sensor, a second position of the actuator output, determining, by the controller, a nominal condition of the actuator lock based on determining that the second position is within a predetermined threshold distance from the predetermined first position of the actuator output, and providing, by the controller and based on the determined nominal condition, a signal indicative of the nominal condition.
The subject matter of this specification can be embodied in, among other things, a flow control valve that includes a gate element formed as a spherical segment having a semispherical peripheral edge, a substantially planar face bounded by a substantially elliptical edge at the semispherical peripheral edge, and a channel defined in the substantially planar face and having a first end proximal to a midpoint of the substantially planar face and extends from the first end to a second end defining a notch in the semispherical peripheral edge.
F16K 1/22 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
A flow control valve that includes a gate element (100) formed as a spherical segment having a semispherical peripheral edge (1), a substantially planar face (114) bounded by a substantially elliptical edge at the semispherical peripheral edge (117), and a channel (120) defined in the substantially planar face and having a first end (122) proximal to a midpoint of the substantially planar face and extends from the first end to a second end (124) defining a notch in the semispherical peripheral edge.
F16K 1/22 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
F16K 1/54 - Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
The subject matter of this specification can be embodied in, among other things, a rotary actuator having a housing with a first mounting assembly, a first mounting bracket adapted for attachment to the first mounting assembly and attachment to a first external mounting connector of a first mounting surface, a second mounting bracket adapted for attachment to the first mounting assembly and attachment to the first external mounting connector, a rotor assembly rotatably journaled in said housing and having a rotary output shaft having a second mounting assembly, a third mounting bracket adapted for attachment to the rotary output shaft and adapted for attachment to a second external mounting connector of a second mounting surface, and a fourth mounting bracket adapted for attachment to the rotary output shaft and adapted for attachment to the second external mounting connector.
F15B 15/08 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit
The subject matter of this specification can be embodied in, among other things, a rotary actuator having a housing with a first mounting assembly, a first mounting bracket adapted for attachment to the first mounting assembly and attachment to a first external mounting connector of a first mounting surface, a second mounting bracket adapted for attachment to the first mounting assembly and attachment to the first external mounting connector, a rotor assembly rotatably journaled in said housing and having a rotary output shaft having a second mounting assembly, a third mounting bracket adapted for attachment to the rotary output shaft and adapted for attachment to a second external mounting connector of a second mounting surface, and a fourth mounting bracket adapted for attachment to the rotary output shaft and adapted for attachment to the second external mounting connector.
F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement
F15B 15/12 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
B64C 13/40 - Transmitting means with power amplification using fluid pressure
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
The subject matter of this specification can be embodied in, among other things, a heat exchanger apparatus that includes a first fluid conduit defining a first fluid flow path for a first fluid and comprising a fluid diode that is at least partly fluidically diodic and formed of a thermally conductive material, the fluid diode having a first fluid inlet, a first fluid outlet, a first sub-conduit extending from the fluid inlet to the fluid outlet, and a second sub-conduit extending from the first sub-conduit proximal the fluid inlet to the first sub-conduit proximal the fluid outlet as a partial loop defining a cavity extending through the partial loop, and a second fluid conduit in thermal communication with the first fluid conduit and defining a second fluid flow path through the partial loop, fluidically isolated from the first fluid flow path, for a second fluid.
F02M 26/29 - Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
F28D 7/10 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
F28F 1/02 - Tubular elements of cross-section which is non-circular
The subject matter of this specification can be embodied in, among other things, a heat exchanger apparatus that includes a first fluid conduit defining a first fluid flow path for a first fluid and comprising a fluid diode that is at least partly fluidically diodic and formed of a thermally conductive material, the fluid diode having a first fluid inlet, a first fluid outlet, a first sub-conduit extending from the fluid inlet to the fluid outlet, and a second sub-conduit extending from the first sub-conduit proximal the fluid inlet to the first sub-conduit proximal the fluid outlet as a partial loop defining a cavity extending through the partial loop, and a second fluid conduit in thermal communication with the first fluid conduit and defining a second fluid flow path through the partial loop, fluidically isolated from the first fluid flow path, for a second fluid.
The present disclosure involves systems, software, and computer implemented methods for controlling machinery. The system can include a sensor configured to measure an operating characteristic of a machine, and a safety controller in communication with the sensor. The safety controller can include a dedicated boundary processor and be in communication with a control processor through the boundary processor that isolates operations of the control processor form the safety controller. The safety controller can be configured to receive measurement data from the sensor, perform signal conditioning on the measurement data to generate a conditioned sample, analyze the conditioned sample to determine whether to take a safety action, and send the conditioned sample to the boundary processor for transmission to the control processor. The control processor can be configured to perform operations including receiving the conditioned sample and controlling one or more operations of the machine based on the conditioned sample.
A backplane that includes a first processor slot, a second processor slot, a plurality of input/output (I/O) slots, a first I/O bus, a second I/O bus electrically isolated from the first I/O bus, and a plurality of I/O connection ports. The first processor slot includes a first processor connection port having a plurality of pins electrically connected to a first processor bus. The second processor slot includes a second processor connection port having a plurality of pins connected to a second processor bus, that is electrically isolated from the first processor bus. The plurality of I/O connection ports each include a first set of pins electrically connected to the first I/O bus, and a second set of pins electrically connected to the second I/O bus. Each of the first processor slot, the second processor slot, and the plurality of I/O slots include at least one of the I/O connection ports.
The present disclosure involves systems, software, and computer implemented methods for controlling machinery. The system can include a sensor configured to measure an operating characteristic of a machine, and a safety controller in communication with the sensor. The safety controller can include a dedicated boundary processor and be in communication with a control processor through the boundary processor that isolates operations of the control processor form the safety controller. The safety controller can be configured to receive measurement data from the sensor, perform signal conditioning on the measurement data to generate a conditioned sample, analyze the conditioned sample to determine whether to take a safety action, and send the conditioned sample to the boundary processor for transmission to the control processor. The control processor can be configured to perform operations including receiving the conditioned sample and controlling one or more operations of the machine based on the conditioned sample.
A backplane that includes a first processor slot, a second processor slot, a plurality of input/output (I/O) slots, a first I/O bus, a second I/O bus electrically isolated from the first I/O bus, and a plurality of I/O connection ports. The first processor slot includes a first processor connection port having a plurality of pins electrically connected to a first processor bus. The second processor slot includes a second processor connection port having a plurality of pins connected to a second processor bus, that is electrically isolated from the first processor bus. The plurality of I/O connection ports each include a first set of pins electrically connected to the first I/O bus, and a second set of pins electrically connected to the second I/O bus. Each of the first processor slot, the second processor slot, and the plurality of I/O slots include at least one of the I/O connection ports.
A system and method of providing prime reliability of a primary fuel manifold upon failure of a primary fuel metering system by providing metered fuel from a secondary fuel metering system are provided. The system utilizes a transfer electro-hydraulic servo valve (EHSV), a discharge select valve (DSV) coupled to the EHSV, and a pair of throttling valves positioned between secondary fuel metering system and the primary and secondary fuel manifolds. The DSV has a multi-land piston that switches a control pressure and a shutoff pressure between the pair of throttling valves to transfer the supply of metered fuel of the secondary fuel metering system from the secondary fuel manifold to the primary fuel manifold. The output pressurizing valve of the failed primary fuel metering system is also closed to isolate the failed primary fuel metering system from the primary fuel manifold.
The subject matter of this specification can be embodied in, among other things, an apparatus that includes a first assembly having a first piston rod having a first rod end, a second assembly arranged substantially parallel to the first piston assembly and having a second piston rod having a second rod end, an end assembly defining a first aperture configured to receive the first rod end, and a second aperture configured to receive the second rod end, a first retaining cap configured to affix to the first rod end, abut the end assembly when affixed to the first rod end, and retain the first rod end within the first aperture, and a second retaining cap configured to affix to the second rod end, abut the end assembly when affixed to the second rod end, and retain the second rod end within the second aperture.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F16J 7/00 - Piston-rods, i.e. rods rigidly connected to the piston
F15B 15/28 - Means for indicating the position, e.g. end of stroke
The subject matter of this specification can be embodied in, among other things, an apparatus that includes a first assembly having a first piston rod having a first rod end, a second assembly arranged substantially parallel to the first piston assembly and having a second piston rod having a second rod end, an end assembly defining a first aperture configured to receive the first rod end, and a second aperture configured to receive the second rod end, a first retaining cap configured to affix to the first rod end, abut the end assembly when affixed to the first rod end, and retain the first rod end within the first aperture, and a second retaining cap configured to affix to the second rod end, abut the end assembly when affixed to the second rod end, and retain the second rod end within the second aperture.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
The subject matter of this specification can be embodied in, among other things, a method for controlling a turbine engine that includes measuring, by a speed sensor, waveforms indicative of a speed of a rotating machine. Receiving the waveforms from the speed sensor and providing data representing the waveforms to a first signal path and to a second signal path, wherein the second signal path is isolated from the first signal path such that data communications at the second signal path do not interfere with communications on the first signal path. Controlling, responsive to the data received along the first signal path, one or more operations of the rotating machine. Storing, the data received along the second signal path, individual samples of the data in association with a respective timestamp indicating a time that the data was received.
G01P 3/488 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors
G01P 3/481 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
G01P 3/487 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
G01P 3/49 - Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents
The subject matter of this specification can be embodied in, among other things, a method for controlling a turbine engine that includes measuring, by a speed sensor, waveforms indicative of a speed of a rotating machine. Receiving the waveforms from the speed sensor and providing data representing the waveforms to a first signal path and to a second signal path, wherein the second signal path is isolated from the first signal path such that data communications at the second signal path do not interfere with communications on the first signal path. Controlling, responsive to the data received along the first signal path, one or more operations of the rotating machine. Storing, the data received along the second signal path, individual samples of the data in association with a respective timestamp indicating a time that the data was received.
The subject matter of this specification can be embodied in, among other things, a fluid flow conditioning apparatus that includes a linear fluid conduit having a first tubular body defining a major axis and extending from a conduit inlet to a conduit outlet arranged opposite the conduit inlet, and configured with a predetermined flow geometry to define a linear fluid flow path along the major axis, a fluid inlet non-parallel to the linear fluid flow path, a first fluid flow conditioner configured to receive fluid flow, condition fluid flow, and redirect conditioned fluid flow along the linear fluid flow path along the major axis, a second fluid flow conditioner configured to receive fluid flow from the linear fluid flow path along the major axis, redirect fluid flow away from the linear fluid flow path, and condition fluid flow.
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
G01F 1/667 - Arrangements of transducers for ultrasonic flowmetersCircuits for operating ultrasonic flowmeters
G01F 5/00 - Measuring a proportion of the volume flow
The subject matter of this specification can be embodied in, among other things, an engine assembly having a nacelle partially surrounding an engine, and a thrust reverser having a first element movable relative to the nacelle between a stowed and deployed position, a first hydraulic actuator configured to move the first element between the stowed and deployed position, the first hydraulic actuator being connected to a fluid source and a return reservoir, and a second element movable between a stowed and deployed position, a second hydraulic actuator configured to move the second element between the stowed and deployed position, the second hydraulic actuator being connected to the fluid source and the return reservoir, and a fluid control system having a servo valve operable to selectively route fluid between the fluid source, the first hydraulic actuator, and the return reservoir, and a controller configured to operate the servo valve.
The subject matter of this specification can be embodied in, among other things, an engine assembly includes a nacelle configured to at least partially surround an engine, and a thrust reverser coupled to the nacelle, the thrust reverser having a thrust-reversing element movable relative to the nacelle between a stowed position and a deployed position, a hydraulic actuator operably coupled to move the thrust-reversing element between the stowed position and the deployed position, and a fluid control system configured to operate the hydraulic actuator, the fluid control system having an electrohydraulic servo valve operable to selectively route fluid between a pressurized fluid source, the hydraulic actuator, and a fluid return reservoir, and a bypass fluid line providing fluid communication between the hydraulic actuator and the fluid return reservoir independent of the electrohydraulic servo valve.
Engine assembly (10) having a nacelle (12) surrounding an engine, and a thrust reverser (22) coupled to the nacelle and having a thrust- reversing element (24a, 24b) movable relative to the nacelle between a stowed and deployed position, a first hydraulic actuator (202b) configured to move the thrust-reversing element between the stowed position and deployed position, the first hydraulic actuator being connected to a fluid source (210) and a return reservoir (212), and a second hydraulic actuator (202a) configured to move the thrust- reversing element between the stowed and deployed position, the second hydraulic actuator being connected to the fluid source and the return reservoir, and a control system having an electrohydraulic servo valve (203a) operable to selectively route fluid between the fluid source, the second hydraulic actuator, and the return reservoir, and a controller (206a) configured to operate the electrohydraulic servo valve.
The subject matter of this specification can be embodied in, among other things, an engine assembly having a nacelle surrounding an engine, and a thrust reverser coupled to the nacelle and having a thrust-reversing element movable relative to the nacelle between a stowed and deployed position, a first hydraulic actuator configured to move the thrust-reversing element between the stowed position and deployed position, the first hydraulic actuator being connected to a fluid source and a return reservoir, and a second hydraulic actuator configured to move the thrust-reversing element between the stowed and deployed position, the second hydraulic actuator being connected to the fluid source and the return reservoir, and a control system having an electrohydraulic servo valve operable to selectively route fluid between the fluid source, the second hydraulic actuator, and the return reservoir, and a controller configured to operate the electrohydraulic servo valve.
The subject matter of this specification can be embodied in, among other things, an engine assembly having a nacelle partially surrounding an engine, and a thrust reverser having a first element movable relative to the nacelle between a stowed and deployed position, a first hydraulic actuator configured to move the first element between the stowed and deployed position, the first hydraulic actuator being connected to a fluid source and a return reservoir, and a second element movable between a stowed and deployed position, a second hydraulic actuator configured to move the second element between the stowed and deployed position, the second hydraulic actuator being connected to the fluid source and the return reservoir, and a fluid control system having a servo valve operable to selectively route fluid between the fluid source, the first hydraulic actuator, and the return reservoir, and a controller configured to operate the servo valve.
Systems and methods are provided for a dual-pump fuel delivery system. The system includes a primary pump to deliver a first fluid flow to the engine via a pump outlet. A secondary pump delivers a second fluid flow and a fuel metering valve to return the second fluid flow to a pump inlet in a first position, and to channel the second fluid flow to the pump outlet in a second position
Systems and methods are provided for a dual-pump fuel delivery system. The system includes a primary pump to deliver a first fluid flow to the engine via a pump outlet. A secondary pump delivers a second fluid flow and a fuel metering valve to return the second fluid flow to a pump inlet in a first position, and to channel the second fluid flow to the pump outlet in a second position.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
Drive machines; motors (except for land vehicles); Governors for use on prime movers; Governors for machines, engines and vehicles; Governors for driving engines and prime movers; Governors, hydraulic amplifiers, oil pumps and hydraulic actuators, all used primarily to regulate the speed and fuel consumption for engines in ships, aircraft, and stationary installations including hydro-electric power generating stations; Valves; Regulators as machine parts; machine-tools; Engines (excluding engines for land vehicles); couplings and transmission belts (excluding those for land vehicles); agricultural implements excluding those that are hand-operated; incubators for eggs; Regulators for drive machines and prime movers, namely hydraulic amplifiers, oil pumps, hydraulic operation instruments, all preferably intended for regulating speed and fuel consumption of ship engines, air vehicles as well as stationary machines, including power generators; Apparatus and machines for processing (screw machines, fraises etc.); engines (except those of vehicles), clutches, driving belts (except those of vehicles); agricultural equipment, brooders, auto-pilots (machines), for the precise adjustment of the speed of the engines, apparatus and auxiliary parts for auto-pilots; Regulators for engines, for regulation of velocity and fuel flow rate for use in the airplanes, ships, locomotives and other land vehicles, and in mobile power generators; Fuel injection systems, consisting essentially of fuel injection pumps, nozzles and computer for included fuel injection pumps; Mechanical, electrical and electronic controls and control systems for internal combustion engines, particularly for speed control and engine shut down; Automatic vending machines; Automatic governors for precise regulation of the speed of prime movers and accessories and auxiliaries for such governors, namely speed adjusters; Governors for prime movers and engines; Governors for machines, engines and vehicles; Oil pumps; Hydraulic actuators; Hydraulic controls; Regulators for engines, for regulation of velocity and fuel flow rate for use in the airplanes, ships, locomotives and other land vehicles, and in mobile power generators; Mechanical and electronic engine parts for the fuel injection, in particular injection valves, starting valves, safety valves, diverter valves, pressure lines, fuel supply lines, compressed air starting control, pump-nozzle systems, pumps, drives for valves, control valves, clutch parts, bearings, drive stations for diesel engines; Machine tools; Governors and parts thereof; governors and controls for prime movers and drive engines; Governors for prime movers and drive engines, oil pumps, hydraulic actuators, all used to regulate the speed and fuel consumption for engines in ships, aircraft, trains and other land vehicles; Governors for engines for land vehicles; Governors for engines and drive machines; Governors for regulating the speed of power sources for vehicles and apparatus for locomotion by land, air or water; Regulators for drive machines and other machines for regulating speed and fuel consumption of ships, air vehicles, trains and other land transport preparations; Regulators for engines, for regulation of velocity and fuel flow rate for use in the airplanes, ships, locomotives and other land vehicles, and in mobile power generators. Hand tools. Speed and fuel flow control devices for use on prime movers; Speed control devices for machines, engines and vehicles; Speed and fuel flow control devices for driving engines and prime movers; Automatic controls for prime movers and engines, including electronic controllers, electronic amplifiers, speed controlling devices, temperature and pressure controlling devices and electrical actuators, all used primarily to regulate the speed and fuel consumption for engines in ships, aircraft, and stationary installations including hydro-electric power generating stations; Automatic controls for synchronizing speed of prime motors, automatic controls for regulating pitch of parallel operating propellers (all in the form of machine parts) and automatic controls for synchronizing parallel operating electrical power generators; automatic controls for machines, namely electrically controlled hydraulic activators (servo plants); Measuring devices for controlling speed and flow of fuel; Control apparatus for speed regulation of engines and machines of all types; Automatic controls for drive machines and prime movers, including electronic control, electronic amplifiers, speedometers, heating and pressure sensitive appliances, electric operation instruments, all preferably intended for regulating speed and fuel consumption of ship engines, air vehicles as well as stationary machines, including power generators; Scientific, nautical, surveying and electrical apparatus and instruments (including wireless); photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; Coin or counter-freed apparatus, talking machines, cash registers, calculating machines, fire-extinguishing apparatus, Control apparatus and devices for regulating the speed; Scientific, nautical, surveying, electric, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus for recording, transmission, reproduction of sound or images; Magnetic data carriers, recording discs; Mechanisms for coin-operated apparatus; Cash registers, calculating machines and data processing equipment; Fire extinguishers; Electrical power supplies (not being machines or generators); Speed droop controllers; Limit controllers and automatic shut-down solenoids; Electric speed setting transducers; Magnetic sensing devices; Fluid pressure sensing devices; Electric tuning controls; Temperature sensitive controls; Frequency sensors; Electrical load sensors; Electrical amplifiers; Signal generators; AC-DC converters; Signal comparing circuits; Voltage level monitoring circuits; signal converters; Potentiometers; Controls for prime movers and engines; Speed control devices for machines, engines and vehicles; Automatic controls for prime movers and driving engines, including electronic controls, hydraulic and electronic amplifiers, speed controlling devices, temperature and pressure controlling devices and electric actuators; Automatic controls for prime movers and driving engines, including electronic controls, hydraulic and electronic amplifiers, speedometers, heating and pressure sensitive appliances and electric controls; Devices of control for regulation of the speed of engines and machines; Control apparatus for regulating the speed of machines and engines of all types; Mechanical and electronic engine parts for the fuel injection, in particular solenoid valves and control stations for diesel engines; Speed and fuel flow control devices for use on prime movers and parts thereof; Automatic regulators and governors for prime movers for vehicles; Automatic controls and accessories for prime movers and drive engines, namely electronic controls, hydraulic and electronic amplifiers, speed controlling devices, temperature and pressure controlling devices, electrical actuators, all used to regulate the speed and fuel consumption for engines in ships, aircraft, trains and other land vehicles; Speed and fuel flow control devices for engines for land vehicles; Speed control devices for engines and drive machines; Apparatus for regulating the speed of power sources for vehicles and apparatus for locomotion by land, air or water; Automatic controls for drive machines and other machines for regulating speed and fuel consumption of ships, air vehicles, trains and other land transport preparations. Motors for land vehicles; Vehicles; apparatus for locomotion by land, air or water. Development of software for control and monitoring of motors.
The subject matter of this specification can be embodied in, among other things, a hydrogen fuel cell anode control system including a hydrogen inlet configured to receive pressurized hydrogen, a hydrogen outlet configured to be fluidically coupled to an anode manifold of a hydrogen fuel cell, a recirculation inlet configured to receive overflow hydrogen from the anode manifold, a hydrogen pressure regulator configured to receive pressurized hydrogen from the hydrogen inlet, a hydrogen recirculation module configured to mix hydrogen received from the hydrogen pressure regulator and the recirculation inlet, and provide a hydrogen mixture to the hydrogen outlet, a differential pressure measurement module configured to measure a differential pressure between the anode manifold and a cathode manifold of the hydrogen fuel cell, and a controller configured to control at least one of the hydrogen pressure regulator or the hydrogen recirculation module based on the measured differential pressure.
The subject matter of this specification can be embodied in, among other things, a linear-to-rotary apparatus that includes a linear actuator having an actuator housing including a piston chamber, a piston shaft disposed in the piston chamber, and a rotor apparatus. The rotor apparatus includes a rotary joint defining a rotational axis, a rotor arm extending radially from the rotary joint and configured to at least partially pivot about the rotary joint, and a torque linkage pivotably connected to the rotor arm. The torque linkage is also attached to an end of the piston shaft of the piston at a pivot connection joint, where the pivot connection joint defines a pivot axis that is substantially perpendicular to the translation axis of the piston shaft.
F16H 21/34 - Crank gearingsEccentric gearings with two or more connecting-rods to each crank or eccentric
B64C 13/26 - Transmitting means without power amplification or where power amplification is irrelevant
F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement
F16C 7/02 - Constructions of connecting-rods with constant length
F16H 21/22 - Crank gearingsEccentric gearings with one connecting-rod and one guided slide to each crank or eccentric
The subject matter of this specification can be embodied in, among other things, an electric motor health monitoring system that includes an estimator module configured to model one or more estimated motor values of an electric motor based on one or more motor control parameters and one or more motor control states, a non-transitory computer readable medium, and a fault detector module configured to (1) provide a fault signal based on the modeled one or more estimated motor values of the motor and a predetermined parameter threshold value, and (2) modify the non-transitory computer readable medium based on the fault signal.
The subject matter of this specification can be embodied in, among other things, a method that includes determining an electrical current output of a fuel cell stack configured to generate electrical current from hydrogen provided in a hydrogen recirculation loop, determining an efficiency level of the fuel cell stack, determining a nitrogen diffusion rate based on the determined electrical current output and the determined efficiency level, and determining a nitrogen concentration in the hydrogen recirculation loop based on the determined nitrogen diffusion rate.
H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
The subject matter of this specification can be embodied in, among other things, a linear actuator lock apparatus having a housing having an inner surface defining an axial cavity having a first housing portion where the axial cavity has a first lateral size, a second housing portion having a second, larger lateral size, and a face from the first housing portion to the second housing portion, a lock assembly having a lock carrier configured for movement within the cavity between a first position and a position, and a lock finger affixed to and extending away from the lock carrier, where the second finger end is configured to contact the face when extended and fit within the first housing portion when retracted, and a sleeve configured to move between a position in which the lock finger is permitted to extend and a position configured to contact and retract the lock finger.
The subject matter of this specification can be embodied in, among other things, a method that includes determining an electrical current output of a fuel cell stack configured to generate electrical current from hydrogen provided in a hydrogen recirculation loop, determining an efficiency level of the fuel cell stack, determining a nitrogen diffusion rate based on the determined electrical current output and the determined efficiency level, and determining a nitrogen concentration in the hydrogen recirculation loop based on the determined nitrogen diffusion rate.
G01R 31/378 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
H01M 8/04992 - Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
The subject matter of this specification can be embodied in, among other things, a linear actuator lock apparatus having a housing having an inner surface defining an axial cavity having a first housing portion where the axial cavity has a first lateral size, a second housing portion having a second, larger lateral size, and a face from the first housing portion to the second housing portion, a lock assembly having a lock carrier configured for movement within the cavity between a first position and a position, and a lock finger affixed to and extending away from the lock carrier, where the second finger end is configured to contact the face when extended and fit within the first housing portion when retracted, and a sleeve configured to move between a position in which the lock finger is permitted to extend and a position configured to contact and retract the lock finger.
in situin situ verification of operational status of control components in a redundant flow control system is provided. The flow control system includes a primary electro-hydraulic servo valve (EHSV) and a secondary EHSV. Only the primary EHSV includes a position sensor. The redundant EHSVs are coupled via a transfer valve to control a position of a metering valve supplying fluid flow to at least one downstream system. The downstream system may be, e.g., a combustor, an actuator, an end effector, or a combination thereof.
The subject matter of this specification can be embodied in, among other things, an electric motor health monitoring system that includes an estimator module configured to model one or more estimated motor values of an electric motor based on one or more motor control parameters and one or more motor control states, a non-transitory computer readable medium, and a fault detector module configured to (1) provide a fault signal based on the modeled one or more estimated motor values of the motor and a predetermined parameter threshold value, and (2) modify the non-transitory computer readable medium based on the fault signal.
H02P 7/22 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using multi-position switch, e.g. drum, controlling motor circuit by means of pilot-motor-operated multi-position switch or pilot-motor-operated variable resistance
H02P 7/32 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using armature-reaction-excited machines, e.g. metadyne, amplidyne, rototrol
44.
TANGENTIAL PRESSURE ATOMIZING TIP WITHOUT FEED CHAMBER
Embodiments of the disclosure relate to a tip for a fuel nozzle. The tip includes a tip body having a first end and a second end spatially disposed from the first end along a longitudinal axis of the tip body. A nozzle passage is disposed at the first end. An entrance cavity, a swirl chamber, and a plurality of swirl passages are disposed within the tip body. The plurality of swirl passages connects the entrance cavity and the swirl chamber. Each of the swirl passages has an opening to the entrance cavity and an exit into the swirl chamber. Fluid communication is provided from the second end to the first end such that fluid flows from the entrance cavity, through the swirl passages, into the swirl chamber, and out through nozzle passage.
F23D 11/24 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space
A system and method of in situ verification of operational status of control components in a redundant flow control system is provided. The flow control system includes a primary electro-hydraulic servo valve (EHSV) and a secondary EHSV. Only the primary EHSV includes a position sensor. The redundant EHSVs are coupled via a transfer valve to control a position of a metering valve supplying fluid flow to at least one downstream system. The downstream system may be, e.g., a combustor, an actuator, an end effector, or a combination thereof.
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
The subject matter of this specification can be embodied in, among other things, an actuator apparatus includes an output member configured to actuate between a first positional configuration and a second positional configuration, a source fluid reservoir, a fluid velocity resistor configured to provide a predetermined resistance to fluid flow, a fluid velocity fuse configured to flow fluid flows having a first predetermined range of fluid velocities and to block fluid flows having second predetermined range of fluid velocities, and a fluid actuator assembly configured to urge fluid flow from the source fluid reservoir through the fluid velocity resistor and the fluid velocity fuse based on actuation of the output member.
F02K 1/76 - Control or regulation of thrust reversers
F02K 1/72 - Reversing fan flow using thrust reverser flaps or doors mounted on the fan housing the aft end of the fan housing being movable to uncover openings in the fan housing for the reversed flow
47.
Tangential pressure atomizing tip without feed chamber
Embodiments of the disclosure relate to a tip for a fuel nozzle. The tip includes a tip body having a first end and a second end spatially disposed from the first end along a longitudinal axis of the tip body. A nozzle passage is disposed at the first end. An entrance cavity, a swirl chamber, and a plurality of swirl passages are disposed within the tip body. The plurality of swirl passages connects the entrance cavity and the swirl chamber. Each of the swirl passages has an opening to the entrance cavity and an exit into the swirl chamber. Fluid communication is provided from the second end to the first end such that fluid flows from the entrance cavity, through the swirl passages, into the swirl chamber, and out through nozzle passage.
Embodiments of the present disclosure relate to a system including a controller, a position sensor, and an emulator circuit. The controller is configured to output an AC excitation signal and receive a first AC response signal and a second AC response signal. The controller is configured to determine a position of an effector based on the first AC response signal and the second AC response signal. The position sensor is configured to be connected to the effector, and the position sensor is configured to output a position signal based on the position of the effector. The emulator circuit is configured to modulate the amplitude and frequency of the position signal based on the AC excitation signal to produce the first AC response signal and the second AC response signal.
G01D 21/00 - Measuring or testing not otherwise provided for
G01D 5/22 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
The subject matter of this specification can be embodied in, among other things, an internal combustion engine ignition system includes a voltage divider configured to be coupled to a primary transformer ignition coil connector, the voltage divider configured to reduce a voltage received from the primary transformer ignition coil to a controller voltage, a comparator circuit with an input coupled to an output of the voltage divider, and a controller configured to detect the voltage output of the voltage divider, detect the voltage output of a vehicle electric power supply, detect the voltage output of a comparator, and determine an estimated breakdown voltage of a spark plug based on the detected output voltage of the voltage divider and the detected voltage of the power supply.
F02P 17/12 - Testing characteristics of the spark, ignition voltage or current
F02P 3/02 - Other electric spark ignition installations characterised by the type of ignition power generation storage having inductive energy storage, e.g. arrangements of induction coils
The subject matter of this specification can be embodied in, among other things, an internal combustion engine ignition system includes a voltage divider configured to be coupled to a primary transformer ignition coil connector, the voltage divider configured to reduce a voltage received from the primary transformer ignition coil to a controller voltage, a comparator circuit with an input coupled to an output of the voltage divider, and a controller configured to detect the voltage output of the voltage divider, detect the voltage output of a vehicle electric power supply, detect the voltage output of a comparator, and determine an estimated breakdown voltage of a spark plug based on the detected output voltage of the voltage divider and the detected voltage of the power supply.
Methods and systems for a gear mechanism that includes one or more actuators operable to activate or deactivate in order to drive or be driven by sequential engagement with one or more cam features incorporated within an interior of a ring gear.
F16H 1/22 - Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shaftsToothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with arrangements for dividing torque between two or more intermediate shafts
52.
SYSTEMS AND METHODS FOR SEQUENTIAL OPERATION FOR MULTIPLE INPUT/OUTPUT SYSTEMS
Methods and systems for a gear mechanism that includes one or more actuators operable to activate or deactivate in order to drive or be driven by sequential engagement with one or more cam features incorporated within an interior of a ring gear.
F16H 37/08 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with a plurality of driving or driven shaftsCombinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts with differential gearing
F16D 41/30 - Freewheels or freewheel clutches specially adapted for cycles with hinged pawl co-operating with teeth, cogs, or the like
The subject matter of this specification can be embodied in, among other things, a sensor that includes a first axial sensor housing portion having a first cross-sectional area, a second axial sensor housing portion arranged adjacent to the first axial sensor housing portion along the sensor axis and having a second cross-sectional area larger than the first cross-sectional area, and a face extending from the interior surface of the first axial sensor housing portion to the interior surface of the second axial sensor housing portion, a first buffer rod within the first axial sensor housing portion and having a first axial end and a second axial end, a second buffer rod within the second axial sensor housing portion and abutting the face, and having a third axial end and a fourth axial end, and an acoustic transceiver element acoustically mated to the second axial end and the third axial end.
G01F 1/667 - Arrangements of transducers for ultrasonic flowmetersCircuits for operating ultrasonic flowmeters
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
A flow system (10) includes a flow source device (12) configured to receive fluid from a first flow line (14) and output fluid on a second flow line (16). An output (18) is in fluid communication with the flow source device on the second flow line. An actuation system (22) is in fluid communication with the second flow line through a third flow line (20). A flow meter (28) measures a flow rate in the second flow line without bypassing any fluid to the first flow line. A controller (26) is in communication with the flow source device and the flow meter. The controller adjusts the flow source device to achieve a desired flow rate at the output based on a condition of the flow source device and the flow rate measured by the flow meter.
A multiphase fuel injector has an injector body with a fuel inlet at a first end and a fuel outlet at a second end opposite the first end. A primary circuit disposed proximate the fuel inlet extends into a central portion of the injector body. The primary circuit is configured to receive a first flow of pressurized fuel from the fuel inlet that discharges into a spin chamber in the injector body downstream from the fuel inlet. The primary circuit is configured to impart a swirling action to the first flow of pressurized fuel. A secondary circuit is located in the injector body radially outward from the primary circuit. The secondary circuit is configured to receive a second flow of pressurized fuel from the fuel inlet that discharges into the fuel outlet. The secondary circuit is configured to impart a swirling action to the second flow of pressurized fuel.
F23R 3/34 - Feeding into different combustion zones
F02C 7/232 - Fuel valvesDraining valves or systems
F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
F16K 21/04 - Self-closing valves, i.e. closing automatically after operation
F23R 3/16 - Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration with devices inside the flame tube or the combustion chamber to influence the air or gas flow
F23R 3/28 - Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
The subject matter of this specification can be embodied in, among other things, a torque motor that includes a base carrying an armature, said armature carrying an elongated body extending from a first elongate body end to a second elongate body end opposite the first elongate body end, and a displacement limiter having a bore at least partly defined therein and removably affixed to the base proximal the first elongate body end, wherein the first elongate body end at least partly extends into the bore.
Systems and methods are provided for improving the accuracy of fuel metering for a motor-driven fuel pump, without the need for a matched-set controller. A characterization resistor value specific to the fuel pump or motor is used to calculate a fuel pump motor speed to regulate fuel delivery to an engine.
F04D 27/00 - Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
F04C 14/08 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the rotational speed
A cold gas thruster having a two-stage solenoid is provided. Pressurized gas from the inlet flows to the back side of the piston (134) to hold the piston closed. The pressure is maintained by a check ball held by the solenoid armature. When the solenoid is energized, the armature allows the check ball to move to bleed off the pressure holding the piston closed. The piston moves away from its seat and allows the pressurized gas to flow to the outlet creating thrust. When the solenoid coil is de-energized, the check ball is forced against its seat, which blocks the escape of pressure on the back side of the piston, so that it can re-pressurize back up to the inlet pressure. This creates a force imbalance and moves the piston to close the valve and stop the thrust. Different nozzles can be used for different thrust profiles without changing the solenoid.
Systems and methods are provided for improving the accuracy of fuel metering for a motor-driven fuel pump, without the need for a matched-set controller. A characterization resistor value specific to the fuel pump or motor is used to calculate a fuel pump motor speed to regulate fuel delivery to an engine.
F04C 14/08 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the rotational speed
Embodiments of a flow system are provided. The flow system includes a flow source device configured to receive fluid from a first flow line and output fluid on a second flow line. An output is in fluid communication with the flow source device on the second flow line. An actuation system is in fluid communication with the second flow line through a third flow line. A flow meter measures a flow rate in the second flow line without bypassing any fluid to the first flow line. A controller is in communication with the flow source device and the flow meter. The controller adjusts the flow source device to achieve a desired flow rate at the output based on a condition of the flow source device and the flow rate measured by the flow meter.
A cold gas thruster having a two-stage solenoid is provided. Pressurized gas from the inlet flows to the back side of the piston to hold the piston closed. The pressure is maintained by a check ball held by the solenoid armature. When the solenoid is energized, the armature allows the check ball to move to bleed off the pressure holding the piston closed. The piston moves away from its seat and allows the pressurized gas to flow to the outlet creating thrust. When the solenoid coil is de-energized, the check ball is forced against its seat, which blocks the escape of pressure on the back side of the piston, so that it can re-pressurize back up to the inlet pressure. This creates a force imbalance and moves the piston to close the valve and stop the thrust. Different nozzles can be used for different thrust profiles without changing the solenoid.
B64G 1/40 - Arrangements or adaptations of propulsion systems
F16K 11/14 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
The subject matter of this specification can be embodied in, among other things, a method for determining health of an actuator that includes applying power to an actuator operating in a nominal operational state, capturing a first signal representative of actuator movement or actuator position, capturing a second signal representative of total actuator force, determining, based on the first signal, an inertial force value representative of force used to overcome at least one of inertia of the actuator and inertia of a load on the actuator, determining, based on the inertial force value and the captured second signal, a load force value representative of actuator force used to overcome force of the load and friction of the load, determining a health value of the actuator based on the load force value, and providing an indication of health of at least one of the actuator and the load.
A multiphase fuel injector has an injector body with a fuel inlet at a first end and a fuel outlet at a second end opposite the first end. A primary circuit disposed proximate the fuel inlet extends into a central portion of the injector body. The primary circuit is configured to receive a first flow of pressurized fuel from the fuel inlet that discharges into a spin chamber in the injector body downstream from the fuel inlet. The primary circuit is configured to impart a swirling action to the first flow of pressurized fuel. A secondary circuit is located in the injector body radially outward from the primary circuit. The secondary circuit is configured to receive a second flow of pressurized fuel from the fuel inlet that discharges into the fuel outlet. The secondary circuit is configured to impart a swirling action to the second flow of pressurized fuel.
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
F23D 5/12 - Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel Details
F23D 11/26 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space with provision for varying the rate at which the fuel is sprayed
The subject matter of this specification can be embodied in, among other things, a method for determining health of an actuator that includes applying power to an actuator operating in a nominal operational state, capturing a first signal representative of actuator movement or actuator position, capturing a second signal representative of total actuator force, determining, based on the first signal, an inertial force value representative of force used to overcome at least one of inertia of the actuator and inertia of a load on the actuator, determining, based on the inertial force value and the captured second signal, a load force value representative of actuator force used to overcome force of the load and friction of the load, determining a health value of the actuator based on the load force value, and providing an indication of health of at least one of the actuator and the load.
G01L 23/02 - Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquidIndicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid mechanically indicating or recording and involving loaded or return springs
G01P 15/16 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by evaluating the time-derivative of a measured speed signal
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
The subject matter of this specification can be embodied in, among other things, a rotary lock assembly includes an epicyclic gear assembly having a sun gear assembly, a ring gear assembly, and a planet gear assembly having a collection of planet gears mechanically engaged to the sun gear assembly and the ring gear assembly, and a planet carrier mechanically engaged to the planet gears and configured to be rotated by the planet gears, a lock rotor configured to be rotated by the ring gear assembly, and a rotary output assembly configured to be rotated by the planet carrier.
F16D 63/00 - Brakes not otherwise provided forBrakes combining more than one of the types of groups
F16H 19/02 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion
F16H 19/08 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and oscillating motion
The subject matter of this specification can be embodied in, among other things, a rotary lock assembly includes an epicyclic gear assembly having a sun gear assembly, a ring gear assembly, and a planet gear assembly having a collection of planet gears mechanically engaged to the sun gear assembly and the ring gear assembly, and a planet carrier mechanically engaged to the planet gears and configured to be rotated by the planet gears, a lock rotor configured to be rotated by the ring gear assembly, and a rotary output assembly configured to be rotated by the planet carrier.
F16H 3/54 - Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears one of the central gears being internally toothed and the other externally toothed
F16D 59/00 - Self-acting brakes, e.g. coming into operation at a predetermined speed
F16D 59/02 - Self-acting brakes, e.g. coming into operation at a predetermined speed spring-loaded and adapted to be released by mechanical, fluid, or electromagnetic means
A redundant fuel metering system and method for a multi-stage combustor that utilizes a fuel metering valve EHSV from a less critical combustor stage fuel metering system as a redundant backup to the main metering valve EHSV. In the event of a failure of the main FMV EHSV, a control module signals a transfer system to switch control of the main FMV to the less critical combustor stage fuel metering system EHSV, thus maintaining control of the FMV for the main combustor. In doing this, the transfer valve then drives the less critical combustor stage fuel metering system FMV to its failsafe position while maintaining control of the main system.
F02K 3/10 - Plants including a gas turbine driving a compressor or a ducted fan with supplementary heating of the working fluidControl thereof by after-burners
68.
Redundant electro-hydraulic servo valve (EHSV) control in a fuel metering system
A redundant fuel metering system and method for a multi-stage combustor that utilizes a fuel metering valve EHSV from a less critical combustor stage fuel metering system as a redundant backup to the main metering valve EHSV. In the event of a failure of the main FMV EHSV, a control module signals a transfer system to switch control of the main FMV to the less critical combustor stage fuel metering system EHSV, thus maintaining control of the FMV for the main combustor. In doing this, the transfer valve then drives the less critical combustor stage fuel metering system FMV to its failsafe position while maintaining control of the main system.
Embodiments of a metering valve for a fuel nozzle are disclosed. The metering valve includes a fitting having an interior cavity and an inlet, a liner disposed within the interior cavity, and a spool having an orifice. The liner includes inlet ports, and the spool is disposed within the liner. The spool is configured to slide within the liner to control flow between the inlet and the orifice. The spool has an open position in which the spool uncovers the inlet ports, a closed position in which the spool is seated against the fitting, and a lifted off position in which the spool is not seated against the fitting and covers the inlet ports. A dribble flow path through at least one of the spool or the liner provides fluid communication between the inlet and the orifice when the spool is in the lifted off position.
F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
F02C 7/232 - Fuel valvesDraining valves or systems
Embodiments of a metering valve for a fuel nozzle are disclosed. The metering valve includes a fitting having an interior cavity and an inlet, a liner disposed within the interior cavity, and a spool having an orifice. The liner includes inlet ports, and the spool is disposed within the liner. The spool is configured to slide within the liner to control flow between the inlet and the orifice. The spool has an open position in which the spool uncovers the inlet ports, a closed position in which the spool is seated against the fitting, and a lifted off position in which the spool is not seated against the fitting and covers the inlet ports. A dribble flow path through at least one of the spool or the liner provides fluid communication between the inlet and the orifice when the spool is in the lifted off position.
The subject matter of this specification can be embodied in, among other things, a linear actuator lock apparatus having a housing having an inner surface defining an axial cavity having a first housing portion where the axial cavity has a first lateral size, a second housing portion having a second, larger lateral size, and a face from the first housing portion to the second housing portion, a lock assembly having a lock carrier configured for movement within the cavity between a first position and a position, and a lock finger affixed to and extending away from the lock carrier, where the second finger end is configured to contact the face when extended and fit within the first housing portion when retracted, and a sleeve configured to move between a position in which the lock finger is permitted to extend and a position configured to contact and retract the lock finger.
The invention relates to a position sensor system, comprising: a sensor housing defining a first cavity having a first face; a fluid effector comprising: an actuator housing having an inner surface defining a second cavity; and a moveable body having a second face and configured for reciprocal movement within the second cavity; an acoustic transmitter system configured to emit a first emitted acoustic waveform toward the first face, and emit a second emitted acoustic waveform toward the second face; and an acoustic receiver system configured to detect a first reflected acoustic waveform based on a first reflection of the first emitted acoustic waveform based on the first face, and detect a second reflected acoustic waveform based on a second reflection of the second emitted acoustic waveform based on the second face.
Disclosed are seal arrangements in a hydraulic device. The seal arrangement includes a seal channel defining a loop. A seal is seated within the seal channel. A coolant flow passage has a first part intersecting with the seal channel at a first point and a second part intersecting with the seal channel at a second point. The first part of the coolant flow passage is configured to provide hydraulic fluid to the seal channel such that, at the first point, a first portion of the hydraulic fluid flows in a first direction around the loop and a second portion of the hydraulic fluid flows in a second direction opposite to the first direction around the loop. At the second point, the first portion of hydraulic fluid and the second portion of hydraulic fluid are configured to flow into the second part of the coolant flow passage.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
Disclosed are seal arrangements in a hydraulic device. The seal arrangement includes a seal channel defining a loop. A seal is seated within the seal channel. A coolant flow passage has a first part intersecting with the seal channel at a first point and a second part intersecting with the seal channel at a second point. The first part of the coolant flow passage is configured to provide hydraulic fluid to the seal channel such that, at the first point, a first portion of the hydraulic fluid flows in a first direction around the loop and a second portion of the hydraulic fluid flows in a second direction opposite to the first direction around the loop. At the second point, the first portion of hydraulic fluid and the second portion of hydraulic fluid are configured to flow into the second part of the coolant flow passage.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F15B 20/00 - Safety arrangements for fluid actuator systemsApplications of safety devices in fluid actuator systemsEmergency measures for fluid actuator systems
F15B 15/28 - Means for indicating the position, e.g. end of stroke
The subject matter of this specification can be embodied in, among other things, a system that includes a flexible structure, a power inverter, a first electromechanical device configured to urge movement of a first portion of the flexible structure based on power received from the power inverter, a second electromechanical device configured to urge movement of a second portion of the flexible structure based on power received from the power inverter, a feedback sensor configured to provide a feedback signal indicative of alignment between the first portion and the second portion, and a controller configured to control operation of at least one of the first electromechanical device and the second electromechanical device based on the feedback signal.
Gas turbine combustor assembly (100) comprising a primary combustion chamber (106) in fluid communication with a primary fuel injector and a primary air inlet, and an igniter (200) carried by the primary combustion chamber an including an igniter stage having an auxiliary combustion chamber housing (205) comprising a mixing chamber (340) and a tubular throat (342) converging downstream of the mixing chamber, an auxiliary air conduit (230) having an auxiliary air outlet in fluidic communication with the auxiliary combustion chamber, an auxiliary fuel conduit (240) having an auxiliary fuel outlet fluidic communication with the auxiliary combustion chamber and an ignition source (290) proximal the auxiliary fuel outlet.
F23R 3/42 - Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers
F02C 9/28 - Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed
The subject matter of this specification can be embodied in, among other things, an assembly that includes a primary combustion chamber in fluid communication with a primary fuel injector and a primary air inlet, and an igniter carried by the primary combustion chamber an includes an igniter stage having an auxiliary combustion chamber housing comprising a mixing chamber and a tubular throat converging downstream of the mixing chamber, an auxiliary air conduit having an auxiliary air outlet in fluidic communication with the auxiliary combustion chamber, an auxiliary fuel conduit having an auxiliary fuel outlet fluidic communication with the auxiliary combustion chamber, and an ignition source proximal the auxiliary fuel outlet.
A control apparatus (100) includes a first mounting member (110), a pivot member (120) defining an axis (122), an elongate member (130) configured to pivot about the axis and having a first elongate portion (132) configured as a first lever arm extending away from the pivot member in a first direction, a second elongate portion (134) extending away from the pivot member in a second direction opposite the first direction, a retainer bracket (140) affixed to the second elongate portion, a gimbal (150) moveably affixed to the first mounting member between the pivot member and the retainer bracket, a force bracket (160) moveably affixed to the second elongate portion by the retainer bracket, and a bias member (170) configured to urge movement of the force bracket in the second direction.
G05G 5/05 - Means for returning or tending to return controlling members to an inoperative or neutral position, e.g. by providing return springs or resilient end-stops
G05G 9/047 - Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
79.
REDUCTION OF CURRENT RIPPLE DUE TO MOSFET SWITCHING DELAYS IN PWM-BASED DRIVES
The subject matter of this specification can be embodied in, among other things, a method that includes receiving a first electrical current output setpoint, identifying a first operational condition based on the first electrical current output setpoint, providing, based on the identified first operational condition, a first pulse width modulated (PWM) signal having a first predetermined duty cycle, based on the first electrical current output setpoint, provided on a predetermined period, receiving a second electrical current output setpoint, identifying a second operational condition different from the first operational condition based on the second electrical current output setpoint, and providing, based on the identified second operational condition, a second PWM signal having a second predetermined duty cycle, based on the second electrical current output setpoint, provided on a predetermined multiple of the predetermined period.
H02P 7/29 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
The subject matter of this specification can be embodied in, among other things, a control apparatus includes a first mounting member, a pivot member defining an axis, an elongate member configured to pivot about the axis and having a first elongate portion configured as a first lever arm extending away from the pivot member in a first direction, a second elongate portion extending away from the pivot member in a second direction opposite the first direction, a retainer bracket affixed to the second elongate portion, a gimbal moveably affixed to the first mounting member between the pivot member and the retainer bracket, a force bracket moveably affixed to the second elongate portion by the retainer bracket, and a bias member configured to urge movement of the force bracket in the second direction.
G05G 9/047 - Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
G05G 5/05 - Means for returning or tending to return controlling members to an inoperative or neutral position, e.g. by providing return springs or resilient end-stops
The subject matter of this specification can be embodied in, among other things, a heat exchanger module that includes a tubular housing, a first fluid conduit, a second fluid conduit, fluidically isolated from the first fluid conduit, a thermal conductor configured to convey heat energy between the first fluid conduit and the second fluid conduit, a first fluid connector assembly, the first fluid connector assembly having a first fluid port fluidically connected to the first fluid conduit, and a second fluid port fluidically connected to the second fluid conduit, and a second fluid connector assembly, the second fluid connector assembly having a third fluid port fluidically connected to the first fluid conduit, and a fourth fluid port fluidically connected to the second fluid conduit.
F28D 7/10 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
F28F 13/02 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by influencing fluid boundary
The subject matter of this specification can be embodied in, among other things, a heat exchanger module that includes a tubular housing, a first fluid conduit, a second fluid conduit, fluidically isolated from the first fluid conduit, a thermal conductor configured to convey heat energy between the first fluid conduit and the second fluid conduit, a first fluid connector assembly, the first fluid connector assembly having a first fluid port fluidically connected to the first fluid conduit, and a second fluid port fluidically connected to the second fluid conduit, and a second fluid connector assembly, the second fluid connector assembly having a third fluid port fluidically connected to the first fluid conduit, and a fourth fluid port fluidically connected to the second fluid conduit.
F28D 7/10 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
F28F 9/26 - Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
An inline variable sonic valve is provided that includes a housing defining an inlet and an outlet positioned inline along a gas flow axis. A contoured metering plug is fixed within the housing and a diverging sleeve is movably positioned within the housing downstream of the contoured metering plug. An actuator is positioned offline from the gas flow axis and is configured to move the diverging sleeve within the housing relative to the contoured metering plug fixed therein to vary a gas metering area defined between the contoured metering plug and the diverging sleeve. The actuator may be hydraulic, fueldraulic, pneumatic, or electric, and may drive the diverging sleeve discretely to an open or a closed position, or to a variable position between the open and closed position when a position senor is included to meter the flow therethrough.
An inline variable sonic valve (100) is provided that includes a housing (118, 132) defining an inlet and an outlet positioned inline along a gas flow axis. A contoured metering plug (114) is fixed within the housing and a diverging sleeve (116) is movably positioned within the housing downstream of the contoured metering plug. An actuator is positioned offline from the gas flow axis and is configured to move the diverging sleeve within the housing relative to the contoured metering plug fixed therein to vary a gas metering area defined between the contoured metering plug and the diverging sleeve. The actuator may be hydraulic, fueldraulic, pneumatic, or electric, and may drive the diverging sleeve discretely to an open or a closed position, or to a variable position between the open and closed position when a position senor is included to meter the flow therethrough.
F16K 1/12 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened
The subject matter of this specification can be embodied in, among other things, a fluid actuator system including a fluid actuator having a housing having an inner wall defining an interior cavity, a piston having a piston head configured for reciprocal movement within the interior cavity, the piston head contacting the inner wall and dividing the interior cavity into a first fluid chamber and a second fluid chamber, a first valve configured to control fluid flow between the first fluid chamber and a bypass conduit, and a second valve configured to control fluid flow between the bypass conduit and the second fluid chamber.
F15B 11/024 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F15B 19/00 - Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere
F15B 20/00 - Safety arrangements for fluid actuator systemsApplications of safety devices in fluid actuator systemsEmergency measures for fluid actuator systems
86.
On-line verifiable trip and throttle valve actuator
The subject matter of this specification can be embodied in, among other things, a fluid actuator system including a fluid actuator having a housing having an inner wall defining an interior cavity, a piston having a piston head configured for reciprocal movement within the interior cavity, the piston head contacting the inner wall and dividing the interior cavity into a first fluid chamber and a second fluid chamber, a first valve configured to control fluid flow between the first fluid chamber and a bypass conduit, and a second valve configured to control fluid flow between the bypass conduit and the second fluid chamber.
F01D 17/26 - Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical fluid, e.g. hydraulic
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
The subject matter of this specification can be embodied in, among other things, a method that includes controlling, by a first fluid valve, a first fluid flow to a first fluid actuator, actuating, by the first fluid actuator, an output, controlling, by a second fluid valve, a second fluid flow to a second fluid actuator, and actuating, by the second fluid actuator, the output.
F15B 18/00 - Parallel arrangements of independent servomotor systems
B64C 13/42 - Transmitting means with power amplification using fluid pressure having duplication or stand-by provisions
F15B 11/22 - Synchronisation of the movement of two or more servomotors
F15B 13/043 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
F15B 13/04 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
F15B 20/00 - Safety arrangements for fluid actuator systemsApplications of safety devices in fluid actuator systemsEmergency measures for fluid actuator systems
F15B 21/08 - Servomotor systems incorporating electrically- operated control means
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
The subject matter of this specification can be embodied in, among other things, a method that includes controlling, by a first fluid valve, a first fluid flow to a first fluid actuator, actuating, by the first fluid actuator, an output, controlling, by a second fluid valve, a second fluid flow to a second fluid actuator, and actuating, by the second fluid actuator, the output.
A fuel nozzle metering valve that includes a spool having an inlet port and an outlet flow port, and a retainer assembled to one end of the spool. A valve liner houses a portion of the spool. The spool is configured to move back and forth within the valve liner. The metering valve is biased in a closed position in which the outlet flow port is disposed entirely within the valve liner. The valve is opened when the spool slides within the valve liner such that some portion of the outlet flow port extends beyond an end of the valve liner. The retainer has a stepped portion configured to abut an end of the retainer at a fuel flow pressure below the expected maximum fuel flow pressure to be used in the fuel nozzle metering valve.
F16K 15/04 - Check valves with guided rigid valve members shaped as balls
F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
F16K 17/30 - Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
F16K 17/34 - Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
F16K 47/00 - Means in valves for absorbing fluid energy
F16K 47/02 - Means in valves for absorbing fluid energy for preventing water-hammer or noise
F23R 3/28 - Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
A cable-linked brake pedal (106) assembly (100) for an airplane. The assembly (100) includes a first cable assembly (200) with a first end attached to a pilot-side brake pedal (106) and a second end attached to a first bell crank assembly (300), and a second cable assembly (200) with a first end attached to a copilot-side brake pedal (106) and a second end attached to a second bell crank assembly (300). A first connecting rod (112) with a first rod end is attached to the first bell crank assembly (300) and a second rod end is attached to the second bell crank assembly (300). The connection between the first and second cable assemblies, first and second bell crank assemblies (130, 134), and first connecting rod (112) is configured such that depressing the pilot-side brake pedal (106) moves the first cable assembly (200), first connecting rod (112), and second cable assembly (200) in such a way as to cause a corresponding depression of the copilot-side brake pedal (106).
B60T 11/04 - Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting mechanically
A hydrogen fuel cell anode control system including a hydrogen inlet configured to receive pressurized hydrogen, a hydrogen outlet configured to be fluid ically coupled to an anode manifold of a hydrogen fuel cell, a recirculation inlet configured to receive overflow hydrogen from the anode manifold, a hydrogen pressure regulator configured to receive pressurized hydrogen from the hydrogen inlet, a hydrogen recirculation module configured to mix hydrogen received from the hydrogen pressure regulator and the recirculation inlet, and provide a hydrogen mixture to the hydrogen outlet, a differential pressure measurement module configured to measure a differential pressure between the anode manifold and a cathode manifold of the hydrogen fuel cell, and a controller configured to control at least one of the hydrogen pressure regulator or the hydrogen recirculation module based on the measured differential pressure.
H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
The subject matter of this specification can be embodied in, among other things, a hydrogen fuel cell anode control system including a hydrogen inlet configured to receive pressurized hydrogen, a hydrogen outlet configured to be fluidically coupled to an anode manifold of a hydrogen fuel cell, a recirculation inlet configured to receive overflow hydrogen from the anode manifold, a hydrogen pressure regulator configured to receive pressurized hydrogen from the hydrogen inlet, a hydrogen recirculation module configured to mix hydrogen received from the hydrogen pressure regulator and the recirculation inlet, and provide a hydrogen mixture to the hydrogen outlet, a differential pressure measurement module configured to measure a differential pressure between the anode manifold and a cathode manifold of the hydrogen fuel cell, and a controller configured to control at least one of the hydrogen pressure regulator or the hydrogen recirculation module based on the measured differential pressure.
System designed to compensate for flow disturbances when changing a flow rate in the system, the system including a flow source device (12) having an inlet and an outlet. The inlet is configured to receive fluid at a first pressure, and the outlet is configured to output the fluid at a second pressure that is higher than the first pressure. The system also includes a fluid control device (20) having an inlet port (30) and a drain port (34). The inlet port of the fluid control device is configured to receive flow from the outlet of the flow source device. Further, the system includes a constant flow regulator (68) configured to provide a leakage flow to a drain output (69). The constant flow regulator is configured to decrease the leakage flow in response to the drain port of the fluid control device.
F01D 17/26 - Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical fluid, e.g. hydraulic
F02C 9/36 - Control of fuel supply characterised by returning of fuel to sump
A flame arrestor screw for a solenoid operated gas valve. The flame arrestor screw may include a screw body having a closed end and an open end. The flame arrestor screw may include a gas passage extending from the open end along a longitudinal axis of the screw body and terminating at a terminal end within the screw body. A through hole may extend through the screw body transverse to the gas passage and in fluid communication with the gas passage.
The subject matter of this specification can be embodied in, among other things, an actuator that includes a piston configured to actuate relative to a housing, a sensor rod configured to be actuated by the piston, a sensor affixed to the housing and configured to detect a piston position of the piston relative to the housing based on a sensor rod position of the sensor rod relative to the sensor, and a linkage configured to couple the sensor rod to the piston, and to offset a change to the sensor rod position due to a temperature-induced dimensional change to at least one of the housing, piston, the sensor rod, and the sensor.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F15B 15/28 - Means for indicating the position, e.g. end of stroke
F15B 19/00 - Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere
G01D 5/22 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
G01D 11/30 - Supports specially adapted for an instrumentSupports specially adapted for a set of instruments
The subject matter of this specification can be embodied in, among other things, an actuator that includes a piston configured to actuate relative to a housing, a sensor rod configured to be actuated by the piston, a sensor affixed to the housing and configured to detect a piston position of the piston relative to the housing based on a sensor rod position of the sensor rod relative to the sensor, and a linkage configured to couple the sensor rod to the piston, and to offset a change to the sensor rod position due to a temperature-induced dimensional change to at least one of the housing, piston, the sensor rod, and the sensor.
F15B 15/28 - Means for indicating the position, e.g. end of stroke
G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
Embodiments of the disclosure relate to a system designed to compensate for flow disturbances when changing a flow rate in the system. The system includes a flow source device having an inlet and an outlet. The inlet is configured to receive fluid at a first pressure, and the outlet is configured to output the fluid at a second pressure that is higher than the first pressure. The system also includes a fluid control device having an inlet port and a drain port. The inlet port of the fluid control device is configured to receive flow from the outlet of the flow source device. Further, the system includes a constant flow regulator configured to provide a leakage flow to a drain output. The constant flow regulator is configured to decrease the leakage flow in response to the drain port of the fluid control device.
F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
F15B 13/04 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
A flame arrestor screw for a solenoid operated gas admission valve. The flame arrestor screw may include a screw body having a first end and an open end. The flame arrestor screw may include a gas passage extending from the open end along a longitudinal axis of the screw body and terminating at a terminal end within the screw body. A through hole may extend through the screw body transverse to the gas passage and in fluid communication with the gas passage.
The subject matter of this specification can be embodied in, among other things, a method performed in connection with an internal combustion engine, and the method including receiving a pressure signal from a combustion chamber pressure sensor during a first range of volumes, the first range corresponding to a portion of a compression phase, the received pressure being a first pressure, providing, based on the received pressure signal, a first pulse of fuel at a first position of the body during the compression phase, and providing, based on the received pressure signal a second pulse of fuel at a second position of the body during the compression phase.
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
F02D 41/40 - Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
F02D 41/38 - Controlling fuel injection of the high pressure type
The subject matter of this specification can be embodied in, among other things, a method performed in connection with an internal combustion engine, and the method including receiving a pressure signal from a combustion chamber pressure sensor during a first range of volumes, the first range corresponding to a portion of a compression phase, the received pressure being a first pressure, providing, based on the received pressure signal, a first pulse of fuel at a first position of the body during the compression phase, and providing, based on the received pressure signal a second pulse of fuel at a second position of the body during the compression phase.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/10 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
F02D 35/02 - Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
