| 摘要 |
A hydraulic load-sensing control arrangement for a first and second hydraulic consumer (A1; A2, B2) is disclosed. A variable displacement pump (3) having load-sensing regulation (43) is provided therein. The highest respective load-sensing pressure of consumers is reported to the load-sensing regulation. In this connection, the first consumer has the highest load pressure in normal operation and therefore the highest load-sensing pressure dependent on the load pressure. In addition, a pressure reducing valve (4) is provided, which is arranged in the pressure medium flow path between the variable displacement pump and the first consumer. A spring force from a regulating spring (6) and a regulating pressure (8) dependent on the load pressure of the first consumer are applied to a valve gate in this pressure reducing valve in the opening direction thereof and pressure (4) is applied directly downstream from the pressure reducing valve in the closing direction thereof. In order to ensure that the valve gate of the pressure reducing valve is advantageously fully open in normal operation, a pressure equivalent of the spring force of the regulating spring and the regulating pressure are greater than a pressure of the variable displacement pump. |
