Patent ID: 8528594

Claim:
A hydraulic system with a first hydraulic machine ( 1 ), comprising an axial piston or a radial piston unit, with a rotating component and a moving machine component which are arranged in a housing ( 6 ), to which are connected a high-pressure ( 16 ) and a low-pressure line ( 17 ) of a working circuit, which is supplied with fluid by means of a charge pump ( 15 ), wherein a leakage fluid ( 7 ) occurs in the housing ( 6 ), characterized in that, by gravity, the leakage fluid ( 7 ) collects exclusively in a leakage fluid reservoir ( 2 ) which is arranged below the rotating component and moving machine component in a working position of the first hydraulic machine ( 1 ) and is connected fluidically to the housing, the leakage fluid ( 7 ) being pumped out of the leakage fluid reservoir ( 2 ) into the low-pressure line ( 17 ) of the working circuit exclusively by the charge pump ( 15 ) and an air conduit at the top of the reservoir connecting the reservoir and the motor housing, so that reduced pressure in the housing is compensated by increased pressure in the reservoir.