公开(公告)号：EP0933571A1

公开(公告)日：1999-08-04

申请号：EP98122836.4

申请日：1998-12-01

申请人： Siemens-Elema AB

发明人： Cewers, Göran ,  Johansson, Hakan

IPC分类号： F16K17/02

CPC分类号： F16K37/0041 ,  F16K17/02 ,  F16K31/06 ,  Y10T137/7924 ,  Y10T137/7929 ,  Y10T137/7936

摘要： A fluid pressure release valve includes an aperture 2 through which fluid may flow. An element 1 is moveable to unseal the aperture 2 and open the valve when a force exerted by the fluid in the valve exceeds a predetermined force. Electromagnetic biasing means 11 is arranged to bias the element 1 to seal the aperture 2 and hold the valve closed against the egress of fluid with the predetermined force. The applied bias is variable according to changes in the sensed position of the element 1 and means 12, cooperable with the solenoid 11, is provided to monitor the changes in its electrical properties as a shaft 10 moves in it, indicating a change in position of the element 1. The means 12 is also adapted to vary the bias to reduce the predetermined force responsive to the sensed change in position of the element 1 indicating an opening of the valve.

摘要翻译： 流体压力释放阀包括孔2，流体可通过孔2流动。 当阀中的流体施加的力超过预定的力时，元件1可移动以开启孔2并打开阀。 电磁偏压装置11被布置成偏置元件1以密封孔2并且以预定的力将阀保持抵靠流体的流出而闭合。 施加的偏压根据元件1的感测位置的变化而变化，并且与螺线管11配合的装置12被提供以当轴10在其中移动时监测其电特性的变化，指示位置变化 元件1.装置12还适于改变偏压以响应于感测到元件1的位置的改变而减小预定力，该位置指示阀的打开。