Hydraulic control with active resetting

Hydraulic control device (1) comprises an adjusting device (4) having a control piston (5) which is moved out of a neutral position in two directions by control forces acting on the control piston in control pressure chambers (6, 6'). Each control pressure chamber is assigned a control valve un...

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Bibliographische Detailangaben
1. Verfasser: CAMURDAN, HAKAN
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:Hydraulic control device (1) comprises an adjusting device (4) having a control piston (5) which is moved out of a neutral position in two directions by control forces acting on the control piston in control pressure chambers (6, 6'). Each control pressure chamber is assigned a control valve unit (33, 33') for supplying the control pressure chambers with a control pressure. Each control pressure chamber has a re-setting valve unit (45, 45') consisting of a control valve (47, 47') and a switching valve (46, 46'). The control valve is connected on the input-side to an auxiliary air line (17) via the switching valve and on the output-side to the respective control valve unit via a re-setting control pressure line (52, 52').