Patent ID: 6517311
Filing Date: 2003-02-11
Classification: F01D,F04D,F16C

Abstract:
A turbo-compressor comprising a housing (1);at least one rotor shaft (4) pivotably supported in the housing and having a free shaft end; a rotor (6) connected to the other end of said rotor shaft (4); a pressure chamber (8) connected to said housing (1) for covering the free shaft end and for containing a pressurized fluid, the free shaft end being acted upon by the pressurized fluid, whose force of pressure compensates the force of the axial thrust acting on said rotor (6); and a seal arrangement (10) having at least one sliding ring seal for sealing said pressure chamber (8), and defining a shaft passage way located at the free end of said rotor shaft (4), said seal arrangement (10) comprising two sliding ring seals disposed one after the other, and a blocking medium disposed in between said sliding ring seals.