A HYDROGEN FUEL CELL MODULE CONFIGURED TO CONTROL DIFFERENTIAL PRESSURE BETWEEN ANODE AND CATHODE

    公开(公告)号:WO2023070037A1

    公开(公告)日:2023-04-27

    申请号:PCT/US2022/078437

    申请日:2022-10-20

    Applicant: WOODWARD, INC.

    Abstract: 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.

    TEMPERATURE-COMPENSATING INTERNAL LINKAGE
    2.
    发明申请

    公开(公告)号:WO2023060077A1

    公开(公告)日:2023-04-13

    申请号:PCT/US2022/077530

    申请日:2022-10-04

    Applicant: WOODWARD, INC.

    Abstract: 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.

    ASYNCHRONOUS ROTARY FUEL VALVE
    3.
    发明申请

    公开(公告)号:WO2023028512A1

    公开(公告)日:2023-03-02

    申请号:PCT/US2022/075383

    申请日:2022-08-24

    Applicant: WOODWARD, INC.

    Abstract: A housing (202) defines a gaseous fuel inlet (204) and a gaseous fuel outlet (206). A rotor (210) defines an internal flow passage (212) 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 (218) 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. A driver (228) is configured to rotate the rotor. A controller (114) 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.

    LOCKING COMPOUND ROTARY ACTUATOR
    4.
    发明申请

    公开(公告)号:WO2022115290A1

    公开(公告)日:2022-06-02

    申请号:PCT/US2021/059685

    申请日:2021-11-17

    Applicant: WOODWARD, INC.

    Abstract: A rotary lock assembly (260) that includes a first epicyclic gear assembly (210) having a first sun gear assembly (220, 230), a first ring gear assembly (222, 232), and a first planet gear assembly (224, 234) mechanically engaged to the first sun gear assembly (220, 230) and the first ring gear assembly (222, 232), and a second epicyclic gear assembly (210) having a second sun gear assembly (220, 230) configured to be rotated by the first ring gear assembly (222, 232), a second ring gear assembly (222, 232), and a second planet gear assembly (224, 234) mechanically engaged to the second sun gear assembly (220, 230) and the second ring gear assembly (222, 232).

    ULTRASONIC FLOW METER FLOW CONTROL
    5.
    发明申请

    公开(公告)号:WO2022032157A1

    公开(公告)日:2022-02-10

    申请号:PCT/US2021/045042

    申请日:2021-08-06

    Applicant: WOODWARD, INC.

    Abstract: 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.

    ULTRASONIC POSITION SENSOR
    6.
    发明申请

    公开(公告)号:WO2022032156A1

    公开(公告)日:2022-02-10

    申请号:PCT/US2021/045040

    申请日:2021-08-06

    Applicant: WOODWARD, INC.

    Abstract: The subject matter of this specification can be embodied in, among other things, a position sensor system that includes a fluid effector that includes a housing having an inner surface defining a cavity, and a moveable body having a first face and a second face opposite the first face and configured to contact the inner surface and subdivide the cavity to define a first chamber and a second chamber, an acoustic transmitter system configured to emit a first emitted waveform toward the first face, and emit a second emitted waveform toward the second face, and an acoustic receiver system configured to detect a first reflected waveform based on a first reflection of the first emitted waveform based on the moveable body, and detect a second reflected waveform based on a second reflection of the second emitted waveform based on the moveable body.

    AUTOMATIC AIR BLEEDING SYSTEM FOR HYDRAULICS

    公开(公告)号:WO2021188531A1

    公开(公告)日:2021-09-23

    申请号:PCT/US2021/022558

    申请日:2021-03-16

    Applicant: WOODWARD, INC.

    Abstract: The subject matter of this specification can be embodied in, among other things, a method that includes actuating a closure member at a predetermined first velocity a predetermined first number of cycles between a first configuration and a second configuration, actuating the closure member at a predetermined second velocity a predetermined second number of cycles between the first and the second configuration, actuating the closure member at a predetermined third velocity a predetermined third number of cycles and the second configuration, actuating the closure member at a predetermined fourth velocity a predetermined fourth number of cycles and the second configuration, and actuating the closure member to the second configuration at a predetermined fifth velocity for a predetermined flushing period.

    ANOMALY DETECTION AND ANOMALY-BASED CONTROL
    10.
    发明申请

    公开(公告)号:WO2019168711A1

    公开(公告)日:2019-09-06

    申请号:PCT/US2019/018536

    申请日:2019-02-19

    Applicant: WOODWARD, INC.

    Abstract: A plant control system includes a plant system and a control system controlling the plant system. Runtime conditions of an operating point of the plant control system are received. The runtime conditions include a runtime state of the plant system, a runtime output of the plant system, and a runtime control action applied to the plant system. Reference conditions of a reference point corresponding to the operating point are determined. Stability radius measures of a state difference, an output difference, and a control action difference are computed. One or more of an observability anomaly indicator, health observability indicator, tracking performance anomaly indicator, tracking performance health indicator, controllability anomaly indicator, and controllability health indicator are determined based on respective spectral correlations between two of the stability radius measure of the output difference, the stability radius measure of the state difference, and the stability radius measure of the control action difference.

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