Overpressure protective device and method for passively blocking gas flow at a pressure setpoint

    公开(公告)号:US11946550B2

    公开(公告)日:2024-04-02

    申请号:US17991519

    申请日:2022-11-21

    IPC分类号: F16K17/04

    摘要: An overpressure protective device for passively blocking flow of gas at a selected pressure setpoint includes a valve, a valve stem, and vacuum-filled bellows coupled to the valve stem. The vacuum-filled bellows are configured such that expansion and/or contraction of the bellows as a result of pressure changes present at the valve are harnessed to passively move the valve stem to operate the valve and block pressures higher than a preconfigured pressure setpoint. If the process pressure drops below the pressure setpoint, the overpressure protective device operates the valve to again permit flow of pressurized gas through the valve.

    Vehicular washing device
    57.
    发明授权

    公开(公告)号:US11840203B2

    公开(公告)日:2023-12-12

    申请号:US16645175

    申请日:2018-09-11

    摘要: A vehicular washing device includes: a nozzle (4); a flow passage forming body (2) of which an internal space is a flow passage of a fluid; and a valve (21) that has a pressing tube part (22) with an axial direction coinciding with a flow direction of the fluid, is elastically deformable in a direction in which the diameter of the pressing tube part changes, and opens and closes the flow passage according to the state of deformation. A first flow passage (2a) and a second flow passage (2b) are formed as the flow passage on opposite sides of the pressing tube part. A shaft (9) with which the pressing tube part is capable of coming into close contact is located inside the valve. The valve deforms elastically according to the magnitude of the pressure of the first flow passage or the pressure of the second flow passage relative to an atmospheric pressure.

    Valve assembly
    58.
    发明授权

    公开(公告)号:US11781672B1

    公开(公告)日:2023-10-10

    申请号:US18058459

    申请日:2022-11-23

    申请人: ROLLS-ROYCE plc

    摘要: A valve assembly includes a fluid flow passage, a valve seat, and an actuator assembly. The actuator assembly includes an actuator body stationary relative to the valve seat and a valve member moveable relative to the valve seat between a first position in which the valve member engages the valve seat, and a second position in which the valve member is remote from the valve seat. The valve member includes at least one orifice extending therethrough. The actuator assembly further includes a bellows attached to the valve member and to the actuator body. An interior surface of the bellows, the actuator body, and the valve member define a control chamber therebetween. An exterior surface of the bellows and the valve member define an outer volume therebetween such that the outer volume is around the control chamber. The at least one orifice fluidly communicates the control chamber with the outer volume.

    BATTERY PACK
    59.
    发明公开
    BATTERY PACK 审中-公开

    公开(公告)号:US20230275310A1

    公开(公告)日:2023-08-31

    申请号:US18172330

    申请日:2023-02-22

    发明人: Tomoaki ITO

    摘要: A battery pack includes: a battery cell; a pack case that accommodates the battery cell and that is provided with an opening; and a valve structure provided to open and close the opening. The valve structure includes a valve member having a valve body portion fitted to an inner peripheral surface of the opening, and a biasing member provided inside the pack case. When an internal pressure of the pack case is increased, the valve member is moved to an outer side of the pack case so as to form a clearance between an outer peripheral surface of the valve body portion and the inner peripheral surface of the opening, and the biasing member biases the valve member toward an inner side of the pack case.

    Aerator Valve Assembly
    60.
    发明申请

    公开(公告)号:US20180339849A1

    公开(公告)日:2018-11-29

    申请号:US15979334

    申请日:2018-05-14

    申请人: Control Concepts

    IPC分类号: B65D88/70 F16K15/06 F16K17/04

    摘要: A high-pressure valve assembly is provided. The high-pressure aerator valve assembly includes an outer housing with front and back ends terminating a central passageway; a movable valve member having a one-piece unitary metal construction slidably engaged within the central passageway in the outer housing, the valve member having an enlarged head termination sealing the front end of the passageway. The assembly also includes a spring-loaded spring guide member also having a one-piece unitary metal construction which is fixed within the central passageway in the outer housing intermediate the front and back end and a wave spring having a predetermined spring constant for supplying spring tension to keep the moveable valve member sealed. Also included are operational sensors which include a linear shaft displacement counter for counting the number of times the valve member opens and closes; a vibration sensor, or accelerometer, for measuring vibration, a temperature sensor and/or an air pressure sensor. The assembly also includes externally accessible on-board memory for storing sensing data.