| 摘要 |
An object of the present invention is to provide an airtight compressor wherein oil backflow can be avoided when the compressor stops. A compression mechanism (4) is disposed inside an airtight container (2) in a position below a gas retention space (14). An oil supply passage (11) supplies oil from an oil reservoir (32) both to the gas retention space (14) and to a sliding portion of the compression mechanism (4) in a compression space (24). The oil supply passage (11) communicates the gas retention space (14) with a second space (26) located on opposite side of the piston from the intake chamber (24). A second channel (12) is a channel that is different from the oil supply passage (11). The second channel (12) enables a gas medium to flow from the gas retention space (14) to the second space (26). The passage resistance when the gas medium flows through the second channel (12) is less than the passage resistance when the gas medium flows through the oil supply passage (11). |
