Patent ID: 9599119
Date: 2017-03-21
CPC Classifications: F01D,F02B,F04D,F05D,F16C

Claim:
1. A bearing device for a turbocharger, comprising: a bearing housing interposed between a turbine housing and a compressor housing of a turbocharger for pressurizing supply air to a combustion chamber of an internal combustion engine, the bearing housing having a bearing portion; a rotor shaft of a turbine rotor arranged to pass through the bearing housing; and a floating bush interposed between the bearing portion and the rotor shaft, having a plurality of oil supply holes which interconnect an outer peripheral surface and an inner peripheral surface, and being configured to supply lubricating oil from the bearing housing to the outer peripheral surface and the inner peripheral surface, wherein the inner peripheral surface of the floating bush is provided with a pressure receiving part for generating pressure by catching flow of the lubricating oil, the pressure receiving part being provided as a groove extending in a circumferential direction along the inner peripheral surface over an interval encompassing adjacent oil supply holes and at a position avoiding communication with the oil supply hole.