Refrigerating cycle apparatus

Refrigeration – Refrigeration producer – With lubricant handling means

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62510, F25B 4302

Patent

active

046728228

ABSTRACT:
The refrigerating cycle apparatus of the invention is provided with a pair of condenser and evaporator, two compressors, and a riser piping for rising therethrough a refrigerant and provided at a suction pipe for one compressor, the suction pipe for the other compressor being connected with the riser piping, so that even when the flood back condition occurs during the individual operation of the one compressor, both compressors are adapted to maintain a proper oil quantity therein.

REFERENCES:
patent: 2196687 (1940-04-01), Steinfeld
patent: 4411141 (1983-10-01), Hara
patent: 4586351 (1986-05-01), Igarashi et al.
"Die Kalte-und Klimatechinik", 3/1979, pp. 124, 131, 132.

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