TURBOCHARGER

摘要

A turbocharger includes a cooling passage. The cooling passage is arranged along a diffuser surface, which faces a diffuser passage in a compressor housing member. The compressor housing member is constituted by combining a first piece, a second piece, and a third piece, which are produced by die casting or the like. The cooling passage is defined by assembling the first piece and the second piece to each other.

主权项

1. A turbocharger comprising:
a compressor housing member having a compressor chamber; a compressor impeller accommodated in the compressor chamber; a diffuser passage, which communicates with the compressor chamber and has a shape surrounding the compressor chamber; a diffuser surface, which faces the diffuser passage; and a cooling passage, which extends along the diffuser surface, wherein a fluid for cooling the diffuser surface flows through the cooling passage, wherein the compressor housing member includes a plurality of pieces, which are assembled to each other, and the cooling passage is defined by the pieces, which are assembled to each other.