公开(公告)号：US06598622B1

公开(公告)日：2003-07-29

申请号：US09857567

申请日：2001-06-04

Applicant: Werner Reith ,  Binh Nguyen Xuan

Inventor： Werner Reith ,  Binh Nguyen Xuan

IPC: F15B13043

CPC classification number: F15B20/002 ,  F15B13/0402 ,  F15B13/042 ,  F15B20/004 ,  F15B2013/004 ,  H01F2007/1684 ,  Y10T137/86606 ,  Y10T137/86614 ,  Y10T137/8663 ,  Y10T137/86702

Abstract: A directional control valve which has a movable control piston (5) which separates two pressure chambers (6, 8) from each other in the valve housing interior, which pressure chambers can be subjected to control pressure in order to move the control piston (5) into axial positions corresponding to relevant switch positions of the valve in accordance with the difference in pressure prevailing between the control chambers (6, 8). An arrangement (29) acts on the control piston (5), produces an actuating force and prestresses the control piston for movement into an axial position corresponding to a desired predetermined position.

Abstract translation: 一种方向控制阀，其具有可移动的控制活塞（5），该活动控制活塞在阀壳体内部彼此分离两个压力室（6,8），该压力室可受到控制压力以便使控制活塞 ）根据控制室（6,8）之间的压力差，对应于阀的相关开关位置的轴向位置。 一个装置（29）作用在控制活塞（5）上，产生一个致动力，并对控制活塞进行预应力运动到一个与期望的预定位置对应的轴向位置上。

公开(公告)号：US06199585B1

公开(公告)日：2001-03-13

申请号：US09380855

申请日：1999-10-07

Applicant: Werner Reith ,  Binh Nguyen Xuan

Inventor： Werner Reith ,  Binh Nguyen Xuan

IPC: F15B13043

CPC classification number: F15B13/042 ,  F15B13/0402 ,  F15B2013/004 ,  F15B2013/0409 ,  H01F2007/1684 ,  Y10T137/8242 ,  Y10T137/86614

Abstract: A directional control valve has an axially displaceable control piston inside a valve housing and a travel sensor arranged on the valve housing to detect the position of the control piston. The sensor includes a travel sensor tube which is pressure tight and sealed on one end and has a directional transmitter rod extending into the other end. The directional transmitter rod is secured to the control piston and extends through the area connecting the inside of the valve housing to the travel sensor tube. A seal exposes a dampening gap placed in the connecting area forming a throttle point enabling oil to flow into the travel sensor tube.

Abstract translation: 方向控制阀在阀壳体内具有可轴向移动的控制活塞和布置在阀壳体上的行程传感器，以检测控制活塞的位置。 该传感器包括行程传感器管，其在一端是压力密封的并且具有延伸到另一端的定向传动杆。 定向发射杆固定在控制活塞上，并延伸穿过连接阀体内部与行程传感器管的区域。 密封件暴露在连接区域中放置的阻尼间隙，形成节流点，使得油能够流入行进传感器管。