Patent ID: 9617910
Date: 2017-04-11
CPC Classifications: F01D,F02B,F02C,F05D

Claim:
1. A turbocharger comprising: a turbine impeller; a rotating shaft connected to the turbine impeller; a bearing housing configured to accommodate the rotating shaft in the bearing housing; and a turbine housing configured to accommodate the turbine impeller in the turbine housing, the turbine housing including a scroll passage and a second flange, the scroll passage surrounding the turbine impeller, the second flange abutting with the bearing housing, the turbine housing having an outer surface provided with a recessed portion, the recessed portion being provided between the scroll passage and the second flange, the recessed portion being a depressed portion toward an inner surface of the turbine housing from the outer surface of the turbine housing, and the bearing housing having a main passage, the second flange having an extending passage, the main passage being connected to the extending passage so as to constitute a first coolant passage, and the turbine housing having a second coolant passage around the scroll passage.