| 摘要 |
PROBLEM TO BE SOLVED: To prevent damage to a sliding portion caused by liquid compression in a low-stage compression mechanism, and also to prevent a decrease in compression efficiency caused by leakage of a refrigerant in a high-stage compression mechanism. SOLUTION: In this compressor 30 as a two-stage compression type compressor, the refrigerant compressed by the low-stage compression mechanism 5L is further compressed by the high-stage compression mechanism 5H. The low-stage compression mechanism 5L includes a low-stage roller 61a arranged inside of a low-stage compression chamber 6s, and a low-stage blade 61b push-pressed to the peripheral surface of the low-stage roller 61a and partitioning the low-stage compression chamber 6s into a high-pressure chamber 6sh and a low-pressure chamber 6sl. The high-stage compression mechanism 5H is provided with a high-stage roller 71a arranged inside a high-stage compression chamber 7s, and a high-stage blade 71b extending from the peripheral surface of the high-stage roller 71a and partitioning the high-stage compression chamber 7s into a high-pressure chamber 7sh and a low-pressure chamber 7sl. COPYRIGHT: (C)2011,JPO&INPIT
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