| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner capable of equalizing the mutual oil quantities of oil tanks with simple structure without monitoring the oil quantities. SOLUTION: The air conditioner 1 is provided with a plurality of compressors 17 for sucking and compressing a gas refrigerant, and a plurality of oil storage parts 20 each communicating with a discharge side refrigerant circuit 7 of at least one compressor 17 to store oil separated from the discharge gas refrigerant of the compressor 17. The air conditioner 1 is further provided with a communicating pipe 71 connecting the respective oil storage parts 20 to communicate with each other, and pressure reducing piping 83 provided at each oil storage part 20 to reduce pressure in each oil storage part 20. COPYRIGHT: (C)2006,JPO&NCIPI
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