公开(公告)号：US3908687A

公开(公告)日：1975-09-30

申请号：US48048074

申请日：1974-06-18

Applicant: TELEFLEX INC

Inventor： WOOD ROBERT ARTHUR RAY

IPC: B63H25/22 ,  F15B13/01 ,  F15B13/04

CPC classification number: F15B13/01 ,  B63H25/22 ,  Y10T137/2554

Abstract: The subject invention is directed to a hydraulic control valve for use between a reversible pump and a rudder operating cylinder in a marine steering system. The valve assembly includes a valve body with first and second fluid passages extending through the body from first and second inlets to first and second outlets. First and second check valves are disposed at the outlets for checking reverse fluid flow through the outlets toward the inlets. Means are included in the body for unseating either of the check valves in response to an increase in pressure in the passage in which the other check valve is disposed. A fluid return passage network is included in the body for connection to a fluid reservoir and intercommunicates the first and second passages. First and second shuttle valves are slidably mounted in the body and are spring biased to an operative position for controlling the fluid flow through the passages.

Abstract translation: 本发明涉及一种用于船用转向系统中的可逆泵和舵操作缸之间的液压控制阀。 阀组件包括阀体，其具有从第一和第二入口延伸穿过主体的第一和第二流体通道到第一和第二出口。 第一和第二止回阀设置在出口处，用于检查通过出口朝向入口的反向流体流动。 装置包括在主体中，用于响应于设置另一止回阀的通道中的压力增加而拆卸任一止回阀。 流体返回通道网络包括在主体中用于连接到流体储存器并且使第一和第二通道相互连通。 第一和第二梭阀可滑动地安装在主体中并且被弹簧偏置到操作位置，以控制通过通道的流体流动。