| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve oscillation stability when a turbine rotor revolves at a high speed, reduce the number of parts, and facilitate processing and assemblability in a first floating bush bearing disposed on a compressor housing side and a second floating bush bearing disposed on a turbine housing side. <P>SOLUTION: The bearing device for a turbocharger has a bearing housing 13 for a turbocharger 1, a rotor shaft 16 that passes through the bearing housing 13, a first floating bush bearing 17 interposed between the bearing housing 13 and the rotor shaft 16 and disposed on a compressor housing 12 side and comprising a first floating bush, and a second floating bush bearing 18 that has the same shape as the first floating bush bearing 17 and is disposed on a turbine housing 11 side and comprises a second floating bush 20. The bearing device for the turbocharger is also characterized in that the inner bearing width Li of the first and second floating bushes is formed to be smaller than the outer bearing width Lo by the same proportion in both bushes. <P>COPYRIGHT: (C)2013,JPO&INPIT |
