Downhole oil well pump
    3.
    发明授权
    Downhole oil well pump 失效
    井下油井泵

    公开(公告)号:US4395200A

    公开(公告)日:1983-07-26

    申请号:US218778

    申请日:1980-12-22

    IPC分类号: F04F1/08 F04F1/12 F04F1/06

    CPC分类号: F04F1/08 F04F1/12

    摘要: An automatic gas operated downhole fluid pump having an elongated cylindrical chamber for receiving fluid and having a concentrically mounted cylindrical float which is connected to a valve having an actuator biased and retained in either an opened or closed position with an elongated control rod connected with the valve actuator and extending through a passageway through the cylindrical float with adjustable means to adjustably connect the control rod with the cylindrical float to apply force to the actuator only when it is desired to actuate the valve.

    摘要翻译: 一种自动气体井下流体泵,其具有用于接收流体的细长圆柱形室,并具有同心安装的圆柱形浮子,其连接到阀,该阀具有被致动器偏压并保持在打开或关闭位置的阀,其具有与阀连接的细长控制杆 致动器,并且通过具有可调节装置的通过圆柱形浮子的通道延伸,以将控制杆与圆柱形浮子可调节地连接,以在需要致动阀时向致动器施加力。