| 摘要 |
PROBLEM TO BE SOLVED: To prevent shortage of refrigerator oil in high-pressure domed compressors 2A and 2B in operation irrespective operating conditions such as the number of compressors 2A and 2B in operation, relating to a refrigeration device in which a compression mechanism 2 is comprised of the two compressors 2A and 2B. SOLUTION: An oil separator 16 is connected to an intake pipe 11a of one of the compressors 2A by an oil return pipe 21. When the compressor 2A is stopped while the other compressor 2B is being actuated, the internal pressure of the actuator 2A stopped is built up to restrict the return of oil to the compressor 2A and allow the oil to return to the compressor 2B actuated.
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