公开(公告)号：US06193009B1

公开(公告)日：2001-02-27

申请号：US09357256

申请日：1999-07-20

申请人： Kenji Chino ,  Kenichi Katae

发明人： Kenji Chino ,  Kenichi Katae

IPC分类号： B62D5087

CPC分类号： F15B13/021 ,  B62D5/062 ,  B66F9/07568 ,  Y10T137/87265

摘要： An electromagnetic valve for a vehicle that returns at least some of the hydraulic oil sent to a hydraulic actuator is provided. The valve has a body, two passages located at intermediate portions of two pipes, respectively, an oil path passing through the body for connecting the two passages to return the hydraulic oil from the one pipe to the other, and a valve mechanism provided within the body, the valve mechanism including a portion of the oil path and a valve body for opening and closing the oil path. Each of the two passages includes a bypass passage that does not pass through the valve mechanism. Therefore, the pressure loss of the hydraulic oil passing through the valve when the valve is closed is not significant.

摘要翻译： 提供一种用于返回送到液压致动器的液压油中的至少一些的用于车辆的电磁阀。 阀具有主体，分别位于两个管道的中间部分处的两个通道，通过主体的油路，用于连接两个通道以将液压油从一个管道返回到另一个管路;以及阀机构， 包括油路的一部分的阀机构和用于打开和关闭油路的阀体。 两个通道中的每一个包括不通过阀机构的旁通通道。 因此，当阀关闭时通过阀的液压油的压力损失不显着。

公开(公告)号：US06394219B1

公开(公告)日：2002-05-28

申请号：US09595836

申请日：2000-06-16

申请人： Wendell L. Gilbert ,  David E. Panter, Jr.

发明人： Wendell L. Gilbert ,  David E. Panter, Jr.

IPC分类号： B62D5087

CPC分类号： B62D5/062 ,  Y10T137/7845 ,  Y10T137/7846 ,  Y10T137/7866

摘要： A hydraulic power steering system (10) for turning steerable wheels of a vehicle. The system (10) comprises a steering gear (12) including a hydraulic motor and a steering valve. The steering gear is susceptible to pressure fluctuations that cause noise during steering. The system (10) further comprises a pressure relief valve (14) having an unactuated condition and actuated conditions. The pressure relief valve (14), in the unactuated condition, restricts fluid flow through the pressure relief valve (14). In an actuated condition, the pressure relief valve (14) permits fluid flow through the pressure relief valve (14). The pressure relief valve (14) progressively is operable from the unactuated condition to an actuated condition as a pressure differential between the inlet (38) and the outlet (40) of the steering gear (12) increases.

摘要翻译： 一种用于转向车辆的转向轮的液压动力转向系统（10）。 系统（10）包括包括液压马达和转向阀的舵机（12）。 舵机易受压力波动的影响，导致转向过程中的噪音。 系统（10）还包括具有未致动状态和致动状态的减压阀（14）。 在未致动状态下的减压阀（14）限制流过压力释放阀（14）的流体。 在致动状态下，减压阀（14）允许流体流过压力释放阀（14）。 随着转向装置（12）的入口（38）和出口（40）之间的压力差增加，逐渐地，减压阀（14）可从未致动状态操作到致动状态。