公开(公告)号：US4116586A

公开(公告)日：1978-09-26

申请号：US794724

申请日：1977-05-09

申请人： Richard Davidson Forney ,  Richard Samuel Hernandez ,  Richard Anderson Curless

发明人： Richard Davidson Forney ,  Richard Samuel Hernandez ,  Richard Anderson Curless

IPC分类号： F01B25/02 ,  F04B49/04 ,  F04B49/20 ,  F15B1/26 ,  G05D9/02 ,  F04B49/00

CPC分类号： F04B49/04 ,  F01B25/02 ,  F04B49/20 ,  F15B1/26 ,  G05D9/02 ,  Y10T137/2536 ,  Y10T137/7371

摘要： A housing contains a slidable spool operable to port a first pressurized fluid line to a fluid motor, and a housing reservoir has a float movable with a fluid level. The motor drives a pump which "pumps down" the reservoir. A second pressurized fluid line is directed through a primary fixed orifice and against one end of the spool, acting against a spring bias, and is permitted to exit through an end orifice to the reservoir. The float moves in response to the fluid level and operates to shut off the end orifice flow, thereby building up backpressure to shift the spool, and thus varying outlet flow from the valve in accordance with the reservoir level. Therefore, the reservoir is pumped down in accordance with reservoir build-up.

摘要翻译： 壳体包含可操作以将第一加压流体管线输送到流体马达的可滑动阀芯，并且壳体储存器具有可以流体水平运动的浮子。 电机驱动一个“抽水”的泵。 第二加压流体管线被引导通过主固定孔口并且抵靠阀芯的一端作用以抵抗弹簧偏压，并且允许其通过端部孔口离开储存器。 浮子响应于流体水平而移动并且操作以截止端部孔流动，从而建立背压以使阀芯移动，并且因此根据储存器水平改变来自阀的出口流量。 因此，储层按照储集层积聚抽取。