Variable flow-control valve
    2.
    发明授权
    Variable flow-control valve 失效
    可变流量控制阀

    公开(公告)号:US3885769A

    公开(公告)日:1975-05-27

    申请号:US37180273

    申请日:1973-06-20

    申请人: STOODY CO

    IPC分类号: F16K7/07

    CPC分类号: F16K7/07

    摘要: A flow meter is disclosed for controlling the flow of a substance in accordance with a control signal. A somewhat-tubular member of resiliently-deformable material includes a plurality of internal, radial extensions from the tubular wall which are inflated to varying degrees to vary the internal passage and control the rate of flow through the member. The wall thickness of the tubular member is somewhat uniform (including the extensions) and a housing is provided to enclose the external surface of the member. Means are then provided for varying the pressure applied to the exterior of the member so that the extensions can be deformed or inflated to variously close the passage through the member.

    摘要翻译: 公开了一种用于根据控制信号控制物质的流量的流量计。 弹性可变形材料的稍微管状的构件包括从管状壁的多个内部径向延伸部,其被膨胀到不同程度以改变内部通道并控制通过构件的流速。 管状构件的壁厚稍微均匀(包括延伸部分),并且设置有用于封闭构件的外表面的壳体。 然后提供装置以改变施加到构件的外部的压力,使得延伸部可以变形或膨胀以不同地闭合通过构件的通道。