| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fixing system between a rotor and a rotating shaft of a centrifugal compressor. <P>SOLUTION: In the fixing system, The rotor 18 has a profile which comprises a nearly concave first front surface 24 and a nearly convex second rear surface 26 opposite to the first front surface 24. The rotor 18 also has a central portion 28 restrained by interference fitting on a rotating shaft 14 of a rotating fluid machine (a centrifugal compressor), and equipped with a shank 30 connected with the second rear surface 26. In that case, the system comprises at least one check ring 32 assembled by interference fitting on the shank 30 of the rotor 18. The check ring 32 has a first internal circumferential surface 34 coupled by interference fitting with the shank 30, and a second internal circumferential surface 36 coupled by interference fitting with the shaft 14 to increase torque which can be transmitted from the shaft 14 to the rotor 18. <P>COPYRIGHT: (C)2009,JPO&INPIT |
