公开(公告)号：US5379874A

公开(公告)日：1995-01-10

申请号：US60993

申请日：1993-05-14

申请人： Kenjiro Fujita ,  Akihiro Kondo ,  Toyoji Ohnishi ,  Yoshio Hasegawa ,  Mitsuru Yuge

发明人： Kenjiro Fujita ,  Akihiro Kondo ,  Toyoji Ohnishi ,  Yoshio Hasegawa ,  Mitsuru Yuge

IPC分类号： F16D48/02 ,  F16H61/00 ,  F16H61/02 ,  F16D25/14

CPC分类号： F16H61/0276 ,  F16H2061/004

摘要： A fluid pressure control device is equipped with a valve body which has an input port connected to a hydraulic fluid source, an output port which is connected to a pressure chamber of a clutch of an automatic transmission, and a discharge port. It further includes a solenoid valve which is incorporated in the valve body and has a valve spool designed to selectively connect the output port to the input port or the discharge port. A discharge passage extends from the discharge port of the valve body, the discharge passage having a discharge port which is positioned at a higher level than the liquid level of the oil pan of the automatic transmission. Finally, a reed valve acts to close the discharge port of the discharge passage to maintain fluid at the aforementioned higher level, and allows the discharge of the hydraulic fluid only through the discharge port.

摘要翻译： 液压控制装置配备有具有连接到液压流体源的输入端口的阀体，连接到自动变速器的离合器的压力室的输出口和排出口。 它还包括一个电磁阀，该电磁阀装在阀体中，并具有一个阀芯，设计用于将输出端口选择性地连接到输入口或排出口。 排出通道从阀体的排出口延伸，排出通道具有位于比自动变速器的油盘的液位高的高度的排出口。 最后，簧片阀用于关闭排出通道的排放口，以将流体维持在上述较高水平，并允许液压流体仅通过排放口排出。