Pump having a bleeding valve
    1.
    发明授权
    Pump having a bleeding valve 失效
    泵具有排气阀

    公开(公告)号:US06299413B1

    公开(公告)日:2001-10-09

    申请号:US09593717

    申请日:2000-06-14

    IPC分类号: F04B1924

    CPC分类号: F04B5/02 F04B53/06

    摘要: A pump comprises a housing having a fluid inlet and a fluid outlet. A piston is mounted for reciprocating motion in first and second directions within the housing. The housing has first and second cavities on first and second sides of the piston, respectively. The first and second cavities are fluidly coupled to the fluid inlet and fluid outlet, so that fluid is pumped to the fluid outlet when the piston moves in either of the first and second directions. A bleed valve is coupled between the first and second cavities. The bleed valve has first and second closed states and an open state. The bleed valve changes from the first closed state through the open state to the second closed state when the piston moves in the first direction. The bleed valve changes from the second closed state through the open state to the first closed state when the piston moves in the second direction.

    摘要翻译: 泵包括具有流体入口和流体出口的壳体。 安装活塞用于在壳体内沿第一和第二方向往复运动。 壳体在活塞的第一和第二侧分别具有第一和第二腔。 第一和第二腔体流体耦合到流体入口和流体出口,使得当活塞在第一和第二方向中的任一方向移动时,流体被泵送到流体出口。 排放阀联接在第一和第二腔之间。 排放阀具有第一和第二关闭状态和打开状态。 当活塞沿第一方向移动时,排放阀从第一关闭状态转变为打开状态到第二关闭状态。 当活塞沿第二方向移动时,排放阀从第二关闭状态通过打开状态改变到第一关闭状态。