| 摘要 |
PCT No. PCT/JP97/02013 Sec. 371 Date Nov. 3, 1998 Sec. 102(e) Date Nov. 3, 1998 PCT Filed Jun. 11, 1997 PCT Pub. No. WO98/57066 PCT Pub. Date Dec. 17, 1998A scroll type fluid machine having a bypass hole structure for capacity control is disclosed. The scroll type fluid machine comprises a first scroll having a first spiral blade, and a second scroll having a second spiral blade. A first fluid working chamber is formed between an inner surface of the first spiral blade, and a second scroll having a second spiral blade. A first fluid working chamber is formed between an inner surface of the first spiral blade and an outer surface of the second spiral blade, and a second fluid working chamber is formed between an outer surface of the first spiral blade and an inner surface of the second spiral blade. A winding end of the first spiral blade is extended so that the first fluid working chamber and the second fluid working chamber open and close with respect to a single low-pressure port. A common bypass hole making the first and second fluid working chambers communicate with the low-pressure port in common is provided.
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