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    • 53. 发明专利
    • AT408331B
    • 2001-10-25
    • AT2432000
    • 2000-02-17
    • HOERBIGER HYDRAULIK
    • STOLLE KLAUSHUBER GERHARD
    • B60J7/12E05F15/04F15B13/10F15B20/00E05F15/02
    • An actuation arrangement for displaced components on vehicles, particularly trunk lids, convertible tops, engine hoods or the like, includes at least one supply line for the pressurized medium and one essentially non-pressure connection line to a reservoir for the working medium or a pump arrangement being functionally of the same kind, at least one preferably hydraulic working cylinder, and at least one control valve controlling the supply of a working medium in at least one working chamber of the working cylinder. To make possible a hydraulic movement of the vehicle component as well as a purely manual actuation in any direction without detrimental influence to a subsequent actuation or other measures, except for the on- and off switching of the energy supply of the hydraulic system, the control valve (4) may be electrically operated, at least one of the working chambers of at least one working cylinder (1) may be connected alternatively via a control valve (4) with a supply line (2), or the working chamber may be connected to a connection line while being without electric power, and that an overflow line (7) is provided between the working chambers of the working cylinders (1) whereby the overflow line (7) allows counter-movements of the displaced component, and whereby an open non-energized valve (8) is inserted in the overflow line (7).