| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a centrifugal compressor capable of inhibiting drop of function of an elastic body for absorbing vibration. <P>SOLUTION: A centrifugal compressor 1 is provided with a rotary shaft 2 having an impeller 32 fixed on one end, rolling bearings 6A, 6B rotatably supporting a rotary shaft 2, and a housing 5 including hollow parts 53, 54 in which the rolling bearings 6A, 6B are fitted. A sleeve 7 composed on material having thermal conductivity lower than that of material constructing an outer ring is installed on the outer rings of the rolling bearings 6A, 6b, and the elastic body 8 is retained on an outer circumference surface of the sleeve 7. The outer rings of the rolling bearings 6A, 6B are supported by inner circumference surfaces of the hollow parts 53, 54 via the sleeve 7 and the elastic body 8 in a radial direction of the rotary shaft 2. <P>COPYRIGHT: (C)2010,JPO&INPIT |
