| 摘要 |
PROBLEM TO BE SOLVED: To avoid insufficiency of a pressing force against a separation force even in every operational condition, in a scroll compressor having a pressing mechanism pressing a movable scroll to a fixed scroll. SOLUTION: The scroll compressor 1 includes the pressing mechanism 75 and a back-flow prevention mechanism 35. The pressing mechanism 75 has: a back pressure chamber 53 facing a back face of a movable side end plate part 71; and a back pressure introduction passage 80 making the back pressure chamber 53 communicate with a compression chamber 23 about to communicate with a discharge port 64 or a compression chamber 23 communicating with the discharge port 64. The back-flow prevention mechanism 35 allows refrigerant in the back pressure introduction passage 80 flow from the compression chamber 23 to the back pressure chamber 53 to prevent the refrigerant from flowing back from the back pressure chamber 53 to the compression chamber 23. COPYRIGHT: (C)2011,JPO&INPIT
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