| 摘要 |
PROBLEM TO BE SOLVED: To improve cooling efficiency, by improving sealability between a roller and a cylinder. SOLUTION: This hermetic rotary compressor 100 stores a motor-driven element 2 and a rotary compression element 4 driven by the motor-driven element 2 and compressing a refrigerant in a sealed vessel 1. An oil passage 60 is arranged for introducing oil in a suction process into a compression space 43 between the cylinder 41 and the roller 45 for constituting the rotary compression element 4. An oil supply pipe 72 for supplying the oil is connected to the oil passage 60. A solenoid valve 80 is arranged in the oil supply pipe 72, and the solenoid valve 80 is opened and closed in response to a driving frequency of the rotary compression element 4. COPYRIGHT: (C)2007,JPO&INPIT
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