| 摘要 |
PROBLEM TO BE SOLVED: To increase the reliability of a fixed scroll and a rotary scroll of a scroll compressor to match the compressor to recent refrigerating air conditioners increased in efficiency and life and using a high-pressure refrigerant such as carbon dioxide. SOLUTION: A communication passage 80 allowing a high-pressure part 30 on the inside of a sliding partition ring 78 to communicate with a compression chamber 15 is formed in the rotary scroll 13. An opening 81 on the compression chamber 15 side of the communication passage 80 is so formed at the lap end 13b of the rotary scroll 13 as to face discharge ports 18 at the center of the fixed scroll 12. Since the lap end 13b of the rotary scroll 13 is prevented from coming into nonuniform contact with the end plate 12a of the fixed scroll 12 when the scroll compressor is under high load, the high reliability of the scroll compressor can be realized. COPYRIGHT: (C)2009,JPO&INPIT
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