Liebherr-werk Bischofshofen Gmbh

Danfoss Scotland Limited

Mario Hettegger

Christoph Kiegerl

Alexis Dole

Hans Knapp

Florian Altenberger

Manuel Bos

Josef Huttegger

David Laireiter

Manuel Bös

Marco Eder

The present invention relates to a hydraulic system for a hydraulically actuable work machine that comprises a switching valve block having a plurality of valve block inputs for a respective connection to a pressure output of one or more hydraulic fluid pumps; having a plurality of valve block outputs for outputting a pressurized hydraulic fluid; and having at least one valve that is arranged between valve block inputs and valve block outputs and that is adapted to selectively produce a fluid connection between a first valve block input and a first valve block output or between the first valve block input and a second valve block output; a plurality of pressure sources, preferably a plurality of separately controllable pressure sources of which each one is connected to a respective valve block input; and a plurality of hydraulic consumers of which each one is connected to a respective valve block output. The system is characterized in that the first valve block output furthermore already has a fixed fluid connection, preferably a fixed exclusive fluid connection, to a second valve block input and in that the steering is connected to the first valve block output.

Hydraulic system with a switch valve block for a hydraulically actuatable working machine

The invention relates to a system for controlling a work machine, in particular a wheel loader, having at least one hand-held control device (), in particular a joystick or steering wheel, at least one restoring device () in the form of one or more spring assemblies, which are connected to the hand-held control device in such a way a restoring force is exerted upon the hand-held control device by the spring assembly when said spring assembly is not in the central position. An adjusting device () which engages with the spring assembly such that an adjustment of the central position of the spring assembly can be carried out, is provided.

Method for controlling a work machine

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Grossarl, Austria

Mario Hettegger