Pump with improved seal
    2.
    发明授权
    Pump with improved seal 失效
    泵具有改进的密封

    公开(公告)号:US4854834A

    公开(公告)日:1989-08-08

    申请号:US71396

    申请日:1987-07-09

    IPC分类号: F04D29/10

    CPC分类号: F04D29/106

    摘要: A pump has a rotor-carrying pump shaft rotatably supported within an internal pipe by a plurality of spaced bearings. A lowermost bearing is located in the vicinity of the rotor near the end of the internal pipe. Adjacent to the lowermost bearing is a seal provided in a reduced-pressure chamber within the internal pipe, the chamber being closed off at the lower end by the bearing juxtaposed to the rotor. The reduced-pressure chamber is connected to an outlet opening in an external pipe which surrounds the internal pipe and is spaced therefrom to provide a transport channel for effluent material being moved by the rotating rotor.

    摘要翻译: 泵具有通过多个间隔开的轴承可旋转地支撑在内管内的转子承载泵轴。 最下方的轴承位于靠近内管末端的转子附近。 靠近最下方的轴承是设置在内管内的减压室中的密封件,该腔室在下端被与转子并置的轴承封闭。 减压室连接到外管中的出口开口,该外管围绕内管并与其间隔开,以提供用于通过旋转转子移动的废液的输送通道。