| 摘要 |
PROBLEM TO BE SOLVED: To attach/detach a compressor impeller and a rotary shaft to/from each other, surely preventing the compressor impeller from being damaged, in a supercharger having a compressor impeller of hollow structure. SOLUTION: In a supercharger 1 having a compressor impeller 8 of hollow structure threaded to a rotary shaft 2, a fixture 35 formed from a material having strength and hardness higher than that of the compressor impeller and having a tool hanging part is detachably attached to a distal end of the compressor impeller, and an engagement mechanism for transmitting torque is formed between the fixture and the distal end of the compressor impeller. COPYRIGHT: (C)2009,JPO&INPIT
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