Supercharger for an internal combustion engine

摘要

A supercharger apparatus for an internal combustion engine. A compressor impeller is arranged in a compressor housing so that a clearance is formed therebetween. The housing is slidably connected to a housing for supporting a shaft on which the compressor impeller is connected, so that the compressor housing is moved between a first position where the clearance is minimum and a second position where the clearance is maximum. A fluid chamber is provided for receiving a fluid flow to generate pressure for moving the compressor housing between the first position and the second position in accordance with the operating condition of the engine to vary the clearance.