公开(公告)号：US07204266B2

公开(公告)日：2007-04-17

申请号：US10399671

申请日：2001-10-19

申请人： Günter Krenzer ,  Karl Josef Meyer ,  Peter Lauer

发明人： Günter Krenzer ,  Karl Josef Meyer ,  Peter Lauer

IPC分类号： F16K17/00

CPC分类号： F15B1/0275 ,  Y10T137/2625 ,  Y10T137/263 ,  Y10T137/2635 ,  Y10T137/7766 ,  Y10T137/777

摘要： A pilot-operated pressure shut-off valve having a main control piston which, when an upper system limit pressure in the hydraulic system is reached, connects an inlet, via which pressure medium can be fed to a hydraulic system, to an outlet by taking up a first switching position and, when a lower system limit pressure is reached, separates from the outlet by taking up a second switching position. The pressure shut-off valve has a pilot valve arrangement by which the fluidic connection of a control space adjacent to the main control piston can be changed in order to control the main control piston, and which has a valve housing, with a first pilot piston and a second pilot piston accommodated within the first pilot piston for compact construction and capability to adjust the two pilot pistons mechanically completely independently of each other.

摘要翻译： 一种先导式压力切断阀，其具有主控制活塞，当达到液压系统中的上限系统极限压力时，可以通过采取将压力介质供给到液压系统的入口连接到出口 第一切换位置，当达到较低的系统限制压力时，通过占用第二切换位置与出口分离。 压力截止阀具有先导阀装置，通过该导阀装置可以改变与主控制活塞相邻的控制空间的流体连接，以便控制主控制活塞并且具有阀壳体，其具有第一引导活塞 以及容纳在第一先导活塞内的第二先导活塞，用于紧凑的结构，并且能够彼此机械地机械地调节两个先导活塞。