초록 ▼

An annular vane diffuser is disposed within a compressor housing of a turbocharger and employs a wave-type compression spring interposed between the vane diffuser and a backplate to provide a desired pressure loading on the vane diffuser to urge the vanes against the wall of the compressor housing f

An annular vane diffuser is disposed within a compressor housing of a turbocharger and employs a wave-type compression spring interposed between the vane diffuser and a backplate to provide a desired pressure loading on the vane diffuser to urge the vanes against the wall of the compressor housing forming one side of the diffuser. The vane diffuser constructed in this manner maintains contact with the compressor housing during turbocharger operation as it moves axially relative to the backplate, thereby providing improved diffuser efficiency.

대표청구항 ▼

[ What is claimed is:] [1.] 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 displa

[ What is claimed is:] [1.] 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; anda pin extending between the vane diffuser and the backplate to prevent the vane diffuser from rotating within the compressor housing.