Hydraulic actuating device

专利名称：Hydraulic actuating device

发明人：Laurentius Andreas Gerardus Mentink申请号：US10858433申请日：20040601公开号：US07194947B2公开日：20070327

专利附图：

摘要：A hydraulic actuating device for moving a retractable hard-top of a convertiblecar. The actuating device comprises a double-acting hydraulic actuator, the firstconnection of the actuator being in communication with an associated throttlingassembly which is designed to provide either an optionally controllable throttling or a

clear passage opening, which is larger than the throttling opening, as a function of aswitching parameter. The throttling assembly has a pressure-detection means fordetecting the hydraulic pressure in the second working chamber, which pressure-detection means has associated with it a predetermined switching pressure. Thethrottling assembly is designed such that—when pressurized hydraulic fluid is suppliedto the second working chamber—the clear passage opening is active if the detectedpressure in the second working chamber is above the switching pressure and that thethrottling is active if the detected second working chamber hydraulic pressure is belowthe switching pressure.

申请人：Laurentius Andreas Gerardus Mentink

地址：Haaksbergen NL

国籍：NL

代理机构：Quarles & Brady LLP

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