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    Microflow metering pump
    1.
    发明授权
    Microflow metering pump 失效
    微流量计量泵

    公开(公告)号：US3922957A

    公开(公告)日：1975-12-02

    申请号：US45911174

    申请日：1974-04-08

    Applicant: BECKMAN INSTRUMENTS INC

    Inventor： OGLE DAVID G ,  TAYLOR JOHN T

    IPC: F04B9/04 ,  F04B49/12 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16 ,  G01N30/32 ,  G01N30/36 ,  F01B9/00

    CPC classification number: G01N30/36 ,  F04B9/045 ,  F04B49/123 ,  F04B53/1005 ,  F04B53/14 ,  F04B53/164 ,  G01N2030/326

    Abstract: A metering pump is provided with stroke adjustment and having a laterally, stress-free, self-aligning piston with a floating seal. A wire coupling is utilized between the pump piston and a plunger reciprocated by a drive motor. The wire is so mounted as to be pre-loaded in tension but may bend. The piston is positively driven in the axial direction but floats free laterally with no lateral force applied and with no linear backlash. Thus, the piston is positively driven, absolutely rigid in the axial direction. The arrangement is suitable for a relatively delicate and brittle piston acted upon by relatively large liquid pressure and driving force.

    Abstract translation: 计量泵具有行程调节并具有横向无应力的具有浮动密封的自对准活塞。 在泵活塞和由驱动马达往复运动的柱塞之间使用线耦合。 电线被安装成预加载紧张但可能弯曲。 活塞在轴向上被正向驱动，但横向浮动，没有施加横向力并且没有线性间隙。 因此，活塞被正向驱动，在轴向上是绝对刚性的。 该装置适用于通过相当大的液体压力和驱动力作用的相对脆弱的活塞。

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