| 摘要 |
Disclosed is a hydraulic system for utility vehicles, in particular agricultural tractors, for supplying primary and/or auxiliary pressure medium consumers ( 6, 11, 12 ) with pressure medium, comprising a pump ( 1 ), whose pressure and flow are controlled as a function of the load pressure of the pressure medium consumers by a pressure and flow controller ( 13 ) to which whenever auxiliary pressure medium consumers ( 11, 12 ) are operating, a higher load pressure compared to the actual load pressure is reported through an amplifier device. In order to obtain rapid response of an actuated auxiliary pressure medium consumer it is proposed that the amplifier device ( 29 ) consists of a proportionally controllable pressure reducing valve ( 39 ).
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