公开(公告)号：US4091838A

公开(公告)日：1978-05-30

申请号：US719590

申请日：1976-08-30

申请人： George Herbert Dowty, deceased ,  by Virginia Anne Lilley, personal representative ,  by Lionel Barber, personal representative ,  by Peter James Kneale, personal representative

发明人： George Herbert Dowty, deceased ,  by Virginia Anne Lilley, personal representative ,  by Lionel Barber, personal representative ,  by Peter James Kneale, personal representative

IPC分类号： E21D15/51 ,  F16K17/02 ,  F16K17/04 ,  F16K21/04

CPC分类号： E21D15/512 ,  F16K17/02 ,  F16K17/0433 ,  F16K17/0493 ,  Y10T137/7852 ,  Y10T137/7904

摘要： A fluid pressure relief valve in which the resilient element for urging the valve closure member to its seat is a quantity of liquid trapped in a container such that movement of the closure member from its seat reduces the volume of the confined liquid elastically without substantial elastic enlargement of the container. A plunger may extend from the valve closure member into the container and may be of smaller cross-sectional area than the effective area of the closure member which is exposed to the pressure of fluid controlled by the valve. In this way liquid pressure in the container may be higher than the pressure of fluid controlled by the valve when the valve opens.

摘要翻译： 流体压力释放阀，其中用于将阀门关闭构件推动到其座椅的弹性元件是一定量的液体，其被捕获在容器中，使得闭合构件从其座部的运动可弹性地减小受限液体的体积，而没有显着的弹性扩大 的容器。 柱塞可以从阀门关闭构件延伸到容器中，并且可以具有比封闭构件的有效区域更小的横截面积，该有效区域暴露于由阀控制的流体的压力。 以这种方式，当阀打开时，容器中的液体压力可能高于由阀控制的流体的压力。