Patent ID: 7144226

Claim:
Centrifugal compressor unit comprising a motor ( 34 ), at least one compressor ( 44 ; 44 ′, 44 ″) comprising a driven shaft ( 54 ; 54 ′, 54 ″) driven by a rotor ( 38 ) of the motor and a set of bladed wheels fitted on the driven shaft, an assembly composed of the motor and the compressor being installed in a common casing ( 55 ) leak tight to the gas manipulated by the compressor unit, characterised in that the rotor and the driven shaft are connected through a flexible coupling ( 72 ; 72 ′, 72 ″) placed in the casing, and characterized in that each end of the driven shaft and the rotor is supported on an end bearing ( 40 , 42 , 55 , 56 ) which suspends the respective end.