Fluid pressure control device for an automatic transmission in a vehicle
    1.
    发明公开
    Fluid pressure control device for an automatic transmission in a vehicle 失效
    Füssigkeitsdruck-Steuereinrichtungfürein automatisches Kfz-Getriebe。

    公开(公告)号:EP0571137A1

    公开(公告)日:1993-11-24

    申请号:EP93303732.7

    申请日:1993-05-14

    IPC分类号: F16H61/00 F15B21/04

    CPC分类号: F16H61/0276 F16H2061/004

    摘要: The fluid pressure control device according to the present invention is equipped with a valve body (26) which has an input port (28) connected to a hydraulic fluid source (48), an output port (30) which is connected to a pressure chamber (16) of a clutch (2) of an automatic transmission, and a discharge port (32), a solenoid valve (24) which is incorporated in the valve body (26) and has a valve spool (34) designed to selectively connect the output port (30) to the input port (28) or the discharge port (32), a discharge passage (60) which extends from the discharge port (32) of the valve body (26), the discharge passage (60) having a discharge port (68) which is positioned at a higher level than the liquid level of the oil pan (53) of the automatic transmission, and a reed valve (70) which closes the discharge port (68) of the discharge passage (60) and allows the discharge of the hydraulic fluid only through the discharge port (68).

    摘要翻译: 根据本发明的流体压力控制装置配备有具有连接到液压流体源(48)的输入端口(28)的阀体(26),连接到压力室的输出端口(30) (16),以及排出口(32),电磁阀(24),其装在阀体(26)中并具有阀芯(34),该阀芯被设计成选择性地连接 输出口(30)到输入口(28)或排出口(32),从阀体(26)的排出口(32)延伸的排出通道(60),排出通道(60) 具有位于比自动变速器的油底壳(53)的液面高的高度的排出口(68),以及关闭排出通道的排出口(68)的簧片阀(70) 60),并且仅允许通过排出口(68)排出液压流体。