Patent ID: 8267670

Claim:
A compressor for compressing a gaseous medium with at least one compressor cylinder which is connected with an inlet duct and with an outlet duct for the medium, an operating fluid being arranged in the at least one compressor cylinder, wherein the operating fluid is supplied by a displacement machine, the displacement machine being constructed as a piston machine with at least one cylinder chamber, the at least one cylinder chamber being connected with said at least one compressor cylinder, said piston machine is connected with a container by means of a leakage duct and a feed pump is connected to said container on an input side and is connected with said inlet duct of said at least one compressor cylinder on an output side, wherein a separation device for the operating fluid is associated with the outlet duct of the at least one compressor cylinder, the separation device being connected with the inlet duct of the compressor for the return of the operating fluid.