| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve both rising characteristics at starting and high speed rotational characteristics, by supporting a turbine shaft by a bearing formed by the combination of a rolling bearing element with a dynamic pressure bearing element, in a turbocharger. <P>SOLUTION: In this turbocharger in which the turbine shaft 1 transmitting rotation of a turbine blade 2 to a compressor blade 3 is supported by bearings 4, 5, the bearings 4, 5 are formed by the dynamic pressure bearing elements 41, 51 supporting the turbine shaft 1, and the rolling bearing elements 45, 55 supporting the dynamic pressure bearing elements 41, 51 on the peripheral sides of the dynamic pressure bearing elements 41, 51. The dynamic pressure bearing elements 41, 51 can be commonly used by the same member as the inner rings 46, 56 of the rolling bearing elements 45, 55. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
