发明名称 |
SIMPLE ACTION ACTUATOR WITH A HYDRAULIC FAST-OPENING VALVE FOR CONTROLLING A CLUTCH |
摘要 |
<p>An actuator with a simple function for the control of a friction clutch in the drive train of a motor vehicle having a cylinder/piston unit for generating the contact pressure of the clutch should be fast, inherently safe and nevertheless simple and inexpensive. For this purpose, a controllable pump ( 3 ) generates a pressure medium and makes it available to the cylinder/piston unit ( 1 ) via a self-regulating valve unit ( 2 ). A dump valve ( 8 ) consists of a sleeve ( 10 ) and a spring-assisted slide ( 12 ) therein. The sleeve has a first opening ( 11 ), through which the pressure medium can flow from the cylinder/piston unit ( 1 ). The slide ( 12 ) exposes the opening ( 11 ) in a first position and conceals the opening of a second position. The clutch is controlled in this way by actuating the electric motor.</p> |
申请公布号 |
EP1567781(B1) |
申请公布日期 |
2007.12.12 |
申请号 |
EP20030757522 |
申请日期 |
2003.10.31 |
申请人 |
MAGNA DRIVETRAIN AG & CO KG |
发明人 |
QUEHENBERGER, JOHANNES;GRATZER, FRANZ;SCHMIDL, DIETER |
分类号 |
F16D48/00;F16D48/02 |
主分类号 |
F16D48/00 |
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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