Patent ID: 6145326
Filing Date: 2000-11-14
Classification: F25B

Abstract:
An apparatus for cooling oil in a refrigeration system compressor, comprising:one or more compressors coupled to receive gaseous refrigerant from cooling units;an oil separator coupled to receive compressed refrigerant gas from the one or more compressors, the oil separator being adapted for separating oil from the compressed refrigerant gas;a condenser unit coupled to receive compressed refrigerant gas from the oil separator;a liquid pump coupled to receive liquid refrigerant from the condenser unit; andan oil heat exchanger coupled to receive the oil separated from the compressed refrigerant gas at the oil separator and to convey the oil to the one or more compressors, and coupled to receive liquid refrigerant from the liquid pump and to convey evaporated refrigerant to the condenser unit;wherein evaporation of liquid refrigerant in the oil heat exchanger provides cooling to the oil passing through the oil heat exchanger.