| 摘要 |
PROBLEM TO BE SOLVED: To improve compressor performance by preventing delay of open of a release valve and reducing operation load in a scroll compressor and provide stable release valve mechanism in mass production. SOLUTION: The scroll compressor is provided with a compression mechanism part compressing working fluid in a compression chamber 11 and a hermetic vessel forming a delivery pressure chamber 2f in which compressed working fluid is delivered. A fixed scroll 5 is provided with a release valve device 15 to open a route to make communication of the compression chamber 11 and a delivery pressure chamber 2f when pressure of the compression chamber rises higher than established pressure. The release valve device 15 is provided with a release flow passage 15i, a release valve 15d provided to open and close the release flow passage 15i, a valve pressing body 15h applying elastic pressing force on a release valve 15d, and retainer 16. The valve pressing body 15h includes elastic part 15e getting free under a condition where the release valve 15d closes the release flow passage 15i and getting compressed under a condition where the release valve 15d opens the release flow passage 15i. COPYRIGHT: (C)2006,JPO&NCIPI
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