| 摘要 |
PROBLEM TO BE SOLVED: To successfully shorten a tie shaft and to improve resonance intensity. SOLUTION: In this centrifugal compressor 10, an impeller 26, a bearing shaft 22, a rotor 20, a bearing shaft 24, and a receiving member 32 are integrally retained by the tie shaft 30. The bearing shaft 24 includes a first bottom 24b located adjacently to the rotor 20, and the receiving member 32 is inserted into the bearing shaft 24 and has a second bottom 32b abutting on the first bottom 24b. The tie shaft 30 has a head 30c abutting on the second bottom 32b, and also the end of a shaft portion 30a is formed with a screw portion 30b around which a nut member 72 is screwed. COPYRIGHT: (C)2011,JPO&INPIT
|
