Patent ID: 9494049
Filing Date: 2016-11-15
CPC Classification: F01D,F02B,F02C,F05D,F16C

Claim Text:
1. A turbocharger comprising: a turbine wheel constituting a turbine; a compressor wheel constituting a compressor; a rotating shaft connecting the turbine wheel and the compressor wheel to each other; a housing which houses at least the rotating shaft; and a semi-floating metal bearing forming a fluid bearing between the rotating shaft and the housing, wherein an oil reservoir space is formed between the housing and the semi-floating metal bearing to temporarily retain oil, the housing is provided with a first supply opening configured to supply oil to the oil reservoir space, the semi-floating metal bearing is provided with a second supply opening configured to supply oil in the oil reservoir space to an inner bearing section formed between the semi-floating metal bearing and the rotating shaft, the first supply opening and the second supply opening are located at different positions in an axial direction of the rotating shaft, a separation wall surface is provided at a position at an outer peripheral surface of the semi-floating metal bearing, and is opposed to the first supply opening, and an outer diameter of the outer peripheral surface of the semi-floating metal bearing is constant from a position opposed to the first supply opening to the second supply opening.