公开(公告)号：US06364431B1

公开(公告)日：2002-04-02

申请号：US09635476

申请日：2000-08-08

申请人： Yuji Yabuki ,  Moriharu Sakai ,  Shinichi Tsujimura

发明人： Yuji Yabuki ,  Moriharu Sakai ,  Shinichi Tsujimura

IPC分类号： B60T836

CPC分类号： F16K31/0665 ,  B60T8/363 ,  B60T8/4872 ,  F04B49/22 ,  Y10T137/86919

摘要： An electromagnetic valve has a plunger as an armature of an electromagnetic actuator and a ball as a movable valve member. The plunger and the ball are separated to permit the ball to move freely in response to a pressure difference between an inlet and an outlet when the coil attracts the plunger. If the plunger undesirably moves by a pressure difference between both ends of the plunger, the ball can keep a closing condition during a suction pressure that is higher than a pressure in the inlet. Therefore, an undesired communication between a master reservoir and a pump is avoided.

摘要翻译： 电磁阀具有作为电磁致动器的电枢的柱塞和作为可动阀构件的球。 柱塞和球被分离以允许球响应于当线圈吸引柱塞时入口和出口之间的压力差自由移动。 如果柱塞不期望地移动柱塞两端之间的压力差，则球可以在高于入口压力的吸入压力期间保持关闭状态。 因此，避免了主容器和泵之间的不期望的连通。