Abstract: A hydraulic load-sensing control arrangement for a first and second hydraulic consumer has a variable displacement pump having load-sensing regulation, to which the highest respective load-sensing pressure of consumers is reported. The first consumer has the highest load pressure in normal operation and therefore the highest load-sensing pressure dependent on the load pressure. A pressure reducing valve is arranged in the pressure medium flow path between the variable displacement pump and the first consumer. A spring force from a regulating spring and a regulating pressure dependent on the load pressure of the first consumer are applied in the opening direction of a valve gate in this pressure reducing valve and pressure is applied directly downstream from the pressure reducing valve in the closing direction thereof. 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.

Abstract: A hydraulic load-sensing control arrangement for a first and second hydraulic consumer has a variable displacement pump having load-sensing regulation, to which the highest respective load-sensing pressure of consumers is reported. The first consumer has the highest load pressure in normal operation and therefore the highest load-sensing pressure dependent on the load pressure. A pressure reducing valve is arranged in the pressure medium flow path between the variable displacement pump and the first consumer. A spring force from a regulating spring and a regulating pressure dependent on the load pressure of the first consumer are applied in the opening direction of a valve gate in this pressure reducing valve and pressure is applied directly downstream from the pressure reducing valve in the closing direction thereof. 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.

Abstract: The present invention relates to a control block provided with a plurality of control block elements in each of which a valve arrangement for controlling an associated hydraulic consumer is provided. Said control block also comprises an oil channel which runs through at least one control block element for controlling the temperature thereof independently of the control of the valve arrangement.

Abstract: A hydraulic control block includes a plurality of valve segments lying on top of one another. A control piston arranged in each valve segment is configured to control inflow of hydraulic oil from a pressure source to a load or discharge of hydraulic oil from a tank. Each control piston is hydraulically operable by at least one pilot valve and each pilot valve is electromagnetically operable. The hydraulic circuits formed in the valve segments are preloaded to a preload pressure corresponding to a respective ambient pressure. The pilot valves are arranged in a housing sealed off from surroundings. The housing interior is filled with hydraulic oil and is connected to the tank. The pilot valves assigned to each valve segment are attached directly to the valve segments, are arranged in their own housing sealed off from surroundings, and are connected to a tank line leading to the tank.

Abstract: The present invention relates to a control block provided with a plurality of control block elements in each of which a valve arrangement for controlling an associated hydraulic consumer is provided. Said control block also comprises an oil channel which runs through at least one control block element for controlling the temperature thereof independently of the control of the valve arrangement.