| 摘要 |
PROBLEM TO BE SOLVED: To improve the compression ratio of a scroll compressor and decrease a power loss due to supercompression. SOLUTION: A fixed scroll 10 and a moving scroll 20 on which spiral laps 12 and 22 are erected on the inner surfaces of end plates 11 and 21, respectively, are combined together and compression chambers S1 and S2 moved to the central side as a volume is decreased are formed between the two laps. An inner peripheral surface 12b of one lap consists of a first part 12b1 composed of a part of an inner spiral surface H2 slidably contacting with an outer peripheral surface 22a of the other lap; a recessed circular arc-shaped second part 12b2 continuously connected to the first part and slidably contacting with a small circular face 22c at the tip on the central side of the other lap; a fourth part 12b4 positioned further on the outside in a radial direction than the extension face of the second part and connected to a small circular arc face; and a third part 12b3 discontinuously connected to the second part and rapidly outwardly separated from the extension face of the second part and connected to the fourth part. COPYRIGHT: (C)2006,JPO&NCIPI
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