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

    摘要: 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

    摘要: 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.

    PISTON FOR PNUEMATIC ACTUATOR IN HIGH VIBRATION ENVIRONMENT
    6.
    发明申请
    PISTON FOR PNUEMATIC ACTUATOR IN HIGH VIBRATION ENVIRONMENT 有权
    活塞式气动执行器在高振动环境中的活塞

    公开(公告)号:US20160363233A1

    公开(公告)日:2016-12-15

    申请号:US14736855

    申请日:2015-06-11

    IPC分类号: F16K31/122 B23P15/10

    摘要: A piston assembly includes a piston with a first cap disposed on a first end of the piston and a second cap disposed on a second end of the piston. A piston cross-member is in between the first cap and the second cap. A first cover is affixed to a first side of the piston cross-member. A second cover is affixed to a second side of the piston cross-member. The second side of the piston cross-member is opposite the first side of the piston cross-member.

    摘要翻译: 活塞组件包括具有设置在活塞的第一端上的第一盖的活塞和设置在活塞的第二端上的第二盖。 活塞横向构件位于第一盖和第二盖之间。 第一盖固定在活塞横梁的第一侧上。 第二盖固定在活塞横梁的第二侧上。 活塞横向构件的第二侧与活塞横梁的第一侧相对。

    Check valve flapper
    7.
    发明授权
    Check valve flapper 有权
    止回阀挡板

    公开(公告)号:US09464724B2

    公开(公告)日:2016-10-11

    申请号:US14452571

    申请日:2014-08-06

    发明人: Josh Kamp Feng Feng

    IPC分类号: F16K15/03

    摘要: A check valve flapper for a check valve is provided and includes a flapper body and a hinge portion extending from the flapper body. The hinge portion includes a lower ear, a middle ear, and an upper ear. The lower ear, the middle ear, and the upper ear each include a hinge pin hole having a hinge pin hole diameter and an ear outer radius. A ratio of the hinge pin hole diameter to the ear outer radius is between 0.83 and 0.91.

    摘要翻译: 提供了一种用于止回阀的止回阀挡板,包括挡板体和从挡板体延伸的铰链部分。 铰链部分包括下耳,中耳和上耳。 下耳,中耳和上耳均包括具有铰链销孔直径和耳朵外径的铰链销孔。 铰链销孔直径与耳朵外径的比例在0.83和0.91之间。