Patent ID: 7581486

Claim:
A hydraulic system comprising: a reservoir for a hydraulic fluid; a pump; a high-pressure line network; a low-pressure line network; a first operating cylinder having a first operating piston and connectable to the high-pressure line network and the low-pressure line network via a first control unit; a second operating cylinder having a second operating piston and connectable to the high-pressure line network and the low-pressure line network via a second control unit; at least one local compensation volume element associated with a respective one of the first and second operating cylinders, the local compensation volume element adapted to compensate for a differential volume between a high-pressure side and a low pressure side of the respective first or second operating cylinder, and having a compensation space and a compensation operating piston disposed movably in the compensation space; and a mechanical connection coupled to the compensation operating piston and couplable to the respective one of the first and second operating pistons and configured to actuate the compensation volume element for accommodating and releasing the differential volume.