| 摘要 |
PROBLEM TO BE SOLVED: To prevent liquid from flowing back to a compressor and at the same time to miniaturize an accumulator. SOLUTION: In this refrigeration cycle of an air conditioner where a compressor 1, a condenser 2, a pressure reduction means 3, and an evaporator 4 are successively subjected to piping connection, a float 5j that floats when the amount of a liquid refrigerant that has flowed in exceeds a fixed level is provided in the accumulator 5. Further, a first bypass pipe 9 is provided between the lower outer periphery of the accumulator 5 and discharge side piping 8 and a second bypass pipe 11 is provided at an area to inlet side piping 10 of the evaporator 4. When the amount of liquid refrigerant in the accumulator 5 exceeds a fixed level and the float 5j floats, one portion of the discharge gas refrigerant is introduced into the accumulator 5 via the first bypass pipe 9, and gas refrigerant and liquid refrigerant in the accumulator 5 are supplied to the evaporator 4 via the second bypass pipe 11.
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