发明名称 |
Control circuit for fluid coupling with lock-up clutch |
摘要 |
A control circuit of a fluid coupling with a lock-up clutch includes a fluid coupling having a power chamber into which a working fluid is introduced for performing a transfer action between input and output elements via the fluid, a clutch member which suitably connects and disconnects the input and output elements, a working chamber formed separately of the power chamber, and a piston member displaced by a pressure difference between the working and power chambers to selectively engage and disengage the clutch member. The control circuit also includes a fluid pressure source for supplying the working fluid to the power chamber, a lock-up clutch control unit for selectively supplying and discharging a fluid to and from the working chamber to control the engagement and disengagement of the clutch member, a control apparatus responsive to supply and discharge of the fluid to and from the working chamber by the lock-up clutch control unit for lowering pressure inside the power chamber to a hydraulic pressure in proportion to that from a throttle valve, and an oil line for supplying a lubricant pressure line via a port in the lock-up clutch control unit with some of such working fluid to be supplied to the working chamber.
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申请公布号 |
US4880091(A) |
申请公布日期 |
1989.11.14 |
申请号 |
US19880174811 |
申请日期 |
1988.03.29 |
申请人 |
AISIN SEIKI KABUSHIKI KAISHA |
发明人 |
HASEGAWA, HIROMI;ISHIGURO, TOSHIAKI |
分类号 |
F16H45/02;F16D47/06;F16H61/14 |
主分类号 |
F16H45/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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