SINGLE BUSHING SUPPORTED PNEUMATIC ACTUATORS

    公开(公告)号:US20240208640A1

    公开(公告)日:2024-06-27

    申请号:US18087711

    申请日:2022-12-22

    CPC classification number: B64C13/48

    Abstract: A pneumatic actuator can include a housing and an actuator shaft disposed within the housing and configured to actuate between a first position and a second position. The pneumatic actuator can include a single bushing located within the housing between the housing and the actuator shaft. The single bushing can be configured to support the actuator shaft without the actuator shaft being supported at a second location while allowing actuator motion under set operating conditions.

    TORQUE MOTOR HOUSING
    3.
    发明申请

    公开(公告)号:US20210111616A1

    公开(公告)日:2021-04-15

    申请号:US16598535

    申请日:2019-10-10

    Abstract: A torque motor assembly includes a shell which has a first wall and a second wall which defines a cavity. A torque motor is positioned at least partially within the cavity. At least one compliant pad is positioned between the first wall and the torque motor and is configured to trap at least one wire within the shell. A housing for a torque motor and a method of assembling a torque motor assembly are also disclosed.

    PASSIVE BLEED VALVES WITH ADJUSTABLE PRESSURE THRESHOLD

    公开(公告)号:US20200040901A1

    公开(公告)日:2020-02-06

    申请号:US16054869

    申请日:2018-08-03

    Abstract: A bleed valve includes a housing with an inlet coupled to an outlet by a duct, a guide tube with an orifice fixed in the housing between the inlet and the outlet, a piston, and baffle. The piston is slideably supported on the guide tube and is movable between an open and a closed position, the duct fluidly coupling the inlet and outlet in the open position, the duct fluidly separating the inlet and outlet in the closed position. The orifice fluidly couples the inlet and outlet in the open and closed positions to move piston between the open and closed positions according to differential pressure between the bleed valve inlet and outlet. The baffle is slideably supported by the guide tube to set the differential pressure at which the piston moves between the open and closed positions. Gas turbines and differential pressure adjustment methods are also described.

    ADJUSTABLE SNAP ACTION PASSIVE INLINE AIR VALVE

    公开(公告)号:US20190277194A1

    公开(公告)日:2019-09-12

    申请号:US15913023

    申请日:2018-03-06

    Abstract: A valve assembly includes a piston housing inside a flow duct between an inlet and an outlet so as to form an annular flow passage between the flow duct and the piston housing. The piston housing is axially aligned with a center axis of the flow duct. A piston is inside the piston housing and is configured to extend downstream of the piston housing in a closed position. A spring biases the piston to the open position. A fluid chamber is between the piston and an upstream end of the piston housing. A control opening extends through the upstream end of the piston housing and fluidically communicates with the flow duct and the fluid chamber. A control piston and a control spring are inside the piston housing. The control spring biases the control piston toward a first position that obstructs the control opening.

    Passive bleed valves with adjustable pressure threshold

    公开(公告)号:US11346356B2

    公开(公告)日:2022-05-31

    申请号:US17193235

    申请日:2021-03-05

    Abstract: A bleed valve includes a housing with an inlet coupled to an outlet by a duct, a guide tube with an orifice fixed in the housing between the inlet and the outlet, a piston, and baffle. The piston is slideably supported on the guide tube and is movable between an open and a closed position, the duct fluidly coupling the inlet and outlet in the open position, the duct fluidly separating the inlet and outlet in the closed position. The orifice fluidly couples the inlet and outlet in the open and closed positions to move piston between the open and closed positions according to differential pressure between the bleed valve inlet and outlet. The baffle is slideably supported by the guide tube to set the differential pressure at which the piston moves between the open and closed positions. Gas turbines and differential pressure adjustment methods are also described.

    PASSIVE BLEED VALVES WITH ADJUSTABLE PRESSURE THRESHOLD

    公开(公告)号:US20210348619A1

    公开(公告)日:2021-11-11

    申请号:US17193235

    申请日:2021-03-05

    Abstract: A bleed valve includes a housing with an inlet coupled to an outlet by a duct, a guide tube with an orifice fixed in the housing between the inlet and the outlet, a piston, and baffle. The piston is slideably supported on the guide tube and is movable between an open and a closed position, the duct fluidly coupling the inlet and outlet in the open position, the duct fluidly separating the inlet and outlet in the closed position. The orifice fluidly couples the inlet and outlet in the open and closed positions to move piston between the open and closed positions according to differential pressure between the bleed valve inlet and outlet. The baffle is slideably supported by the guide tube to set the differential pressure at which the piston moves between the open and closed positions. Gas turbines and differential pressure adjustment methods are also described.

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