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公开(公告)号：US12065987B2
公开(公告)日：2024-08-20
申请号：US17319916
申请日：2021-05-13
申请人： Woodward, Inc.
CPC分类号： F02K1/763 , F02K1/60 , F05D2220/323 , F05D2260/50 , F05D2270/64
摘要： 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.
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公开(公告)号：US20240186547A1
公开(公告)日：2024-06-06
申请号：US18530070
申请日：2023-12-05
申请人： Woodward, Inc.
发明人： Yi Han , Gregory James Hampson
IPC分类号： H01M8/0444 , G01R31/378 , G01R31/392 , H01M8/04089 , H01M8/04111 , H01M8/04119 , H01M8/04223 , H01M8/0438 , H01M8/04537 , H01M8/04746 , H01M8/04992
CPC分类号： H01M8/04455 , G01R31/378 , G01R31/392 , H01M8/04097 , H01M8/04111 , H01M8/04156 , H01M8/04231 , H01M8/04388 , H01M8/04395 , H01M8/04574 , H01M8/04761 , H01M8/04992 , H01M2008/1095
摘要： 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.
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公开(公告)号：US11965466B2
公开(公告)日：2024-04-23
申请号：US17812333
申请日：2022-07-13
申请人： Woodward, Inc.
发明人： Bidhan Dam , Logan Oonk , Dan Huber , Vinay Prasad , Sudipa Sarker
摘要： The subject matter of this specification can be embodied in, among other things, a turbine combustor assembly 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 and including a first igniter stage having an auxiliary combustion chamber housing comprising a mixing chamber and a tubular throat converging downstream of the mixing chamber, an ignition source projecting into the mixing chamber of the auxiliary combustion chamber, and a second igniter stage that includes an auxiliary fuel outlet manifold proximal to an outlet of the tubular throat.
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公开(公告)号：US11796990B2
公开(公告)日：2023-10-24
申请号：US17410684
申请日：2021-08-24
申请人： Woodward, Inc.
CPC分类号： G05B23/0254 , G01R31/343 , G01R31/346
摘要： The subject matter of this specification can be embodied in, among other things, a torque motor monitoring system that includes a first observer module configured to receive a first collection of operational information about a torque motor when the torque motor is operating normally, and determine a duty offset ratio value based on the first collection of operational information, a second observer module configured to receive a second collection of operational information about a torque motor, determine a MOSFET gate duty ratio value based on the second collection of operational information and the duty offset ratio value, and determine a motor current value, and a fault detection module configured to identify a fault in the torque motor based on the MOSFET gate duty ratio value, the motor current value, and a predetermined fault determination threshold value.
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公开(公告)号：US11732675B1
公开(公告)日：2023-08-22
申请号：US18075131
申请日：2022-12-05
申请人： Woodward, Inc.
CPC分类号： F02K1/766 , F02K1/763 , F16H25/2454 , F05D2220/323
摘要： 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.
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公开(公告)号：US11686278B2
公开(公告)日：2023-06-27
申请号：US17452534
申请日：2021-10-27
申请人： Woodward, Inc.
IPC分类号： F02M26/36 , F02M26/22 , F02M26/10 , F02M26/42 , F02M26/06 , F02M26/14 , F02M26/17 , B01F25/433 , F02M35/10
CPC分类号： F02M26/36 , B01F25/4335 , F02M26/06 , F02M26/10 , F02M26/14 , F02M26/17 , F02M26/22 , F02M26/42 , F02M35/10222 , F02M35/10262
摘要： The subject matter of this specification can be embodied in, among other things, a gas mixer that includes a convergent-divergent nozzle comprising a convergent portion and a divergent portion and defining a first gas flow path, an air housing comprising an air inlet configured to supply air to the first gas flow path upstream of the convergent-divergent nozzle, a gas housing defining a second gas flow path and including a first gas inlet configured to receive a secondary gas and allow the secondary gas into a second gas flow path, and a gas nozzle positioned parallel to and centrally within the first gas flow path in a convergent portion of the convergent-divergent nozzle, the gas nozzle configured to supply the secondary gas to the first gas flow path upstream of the divergent portion.
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公开(公告)号：US20230066926A1
公开(公告)日：2023-03-02
申请号：US17822538
申请日：2022-08-26
申请人： Woodward, Inc.
摘要： The subject matter of this specification can be embodied in, among other things, a method of sensing that includes measuring an acoustic impedance of a fluid, measuring a first time of flight in a first direction through the fluid, measuring a second time of flight in a second direction through the fluid, determining a mass fluid flow rate based on the measured acoustic impedance, the measured first time of flight, and the measured second time of flight, and providing the determined mass fluid flow rate.
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公开(公告)号：US20230060293A1
公开(公告)日：2023-03-02
申请号：US17459909
申请日：2021-08-27
申请人： Woodward, Inc.
摘要： A housing defines a gaseous fuel inlet and a gaseous fuel outlet. A rotor defines an internal flow passage therethrough that rotates with the rotor to, alternately, allow gaseous fuel flow, or to block gaseous fuel flow, between the inlet and the outlet, based on a position of the rotor. A seal is biased to abut an exterior surface of the rotor. The seal is between the rotor and the outlet. An actuator is rotably coupled to the rotor. The driver is configured to rotate the rotor. A controller is in communication with the driver and is configured to control the driver to rotate at a rate based on an engine speed of the engine.
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公开(公告)号：US11572901B2
公开(公告)日：2023-02-07
申请号：US17202094
申请日：2021-03-15
申请人： Woodward, Inc.
IPC分类号： F15B13/043 , F15B9/03 , F15B13/16 , F15B19/00 , F15B21/044 , F15B13/044 , F15B13/04 , F15B21/08
摘要： The subject matter of this specification can be embodied in, among other things, an electrohydraulic positioning control system that includes a shuttle valve configured to direct fluid flow between a selectable one of a first fluid port and a second fluid port, and a fluid outlet configured to be fluidically connected to a fluid actuator, a first servo valve controllable to selectably permit and block flow between the first fluid port, a fluid source, and a fluid drain, a second servo valve controllable to selectably permit and block flow between the second fluid port, the fluid source, and the fluid drain, a first servo controller configured to provide a first health signal and control the first servo valve based on a second health signal, and a second servo controller configured to provide the second health signal and control the second servo valve based on the first health signal.
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公开(公告)号：US11552582B2
公开(公告)日：2023-01-10
申请号：US16901639
申请日：2020-06-15
申请人： Woodward, Inc.
发明人： Gregory A. Molenaar
摘要： The subject matter of this specification can be embodied in, among other things, an electric actuator driver that includes a first input port configured to receive an analog electrical servo control signal, a second input port configured to receive a position feedback signal, a first output port, a second output port, and a conversion circuit configured to determine one or more electric motor coil control current levels based on the analog electrical servo control signal and the position feedback signal, provide the one or more electric motor coil control currents based on the determined electric motor coil control current levels at the first output port, determine a feedback signal based on the analog electrical servo control signal, and provide the determined feedback signal at the second output port.
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