Patent ID: 6168375
Filing Date: 2001-01-02
Classification: F04D,F05D

Abstract:
A turbocharger for internal combustion engines comprising: a compressor housing having a volute therein; a backplate attached to an exterior surface of the compressor housing; an impeller rotatably mounted within the compressor housing; an annular vane diffuser axially displacable within the compressor housing having a plurality of vanes projecting axially outwardly therefrom, the vane diffuser being placed within a channel disposed in an axially-facing surface of the backplate; a spring means interposed between the vane diffuser and the backplate for imposing an axially directed pressure load on the vane diffuser to urge the vane diffuser away from the backplate; an annular seal interposed between the vane diffuser and the backplate to provide an air-tight seal therebetween; and a pin extending between the vane diffuser and the backplate to prevent the vane diffuser from rotating within the compressor housing.