| 摘要 |
PROBLEM TO BE SOLVED: To provide a multitype refrigerator capable of effecting stable long time operation and saving a consumption power. SOLUTION: The multitype refrigerator is provided on the discharge side of compressors 5a, 5b, and 5c with a plurality of compressors 2, 3, and 4, a controller 24 to control a value of a volume variable control type compressor, and oil separators 5a, 5b, and 5c to separate oil 9 from refrigerant gas oil 9. The multitype refrigerator comprises oil discharge pipes 11a, 11b, and 11c to discharge oil 9 separated by the oil separator of the compressor controlled such that a pressure on the discharge side is reduced to a value lower than the discharge side of other compressor; and an oil discharge pipes 10a and 10b, having pumps 13a and 13b, to forcibly discharge the separated oil.
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