Patent ID: 6018958
Filing Date: 2000-02-01
Classification: F25B

Abstract:
A dry suction refrigeration system, comprising:an evaporator fed with liquid refrigerant and discharging a vapor refrigerant;an accumulator for accumulating vapor refrigerant discharged from the evaporator;a compressor receiving vapor refrigerant from the accumulator, for compressing the vapor refrigerant;a condenser receiving compressed vapor refrigerant from the compressor, for condensing it into liquid refrigerant;a receiver receiving the liquid refrigerant from the condenser and supplying it to the evaporator;said evaporator including an electronic expansion valve operable to continuously monitor the evaporation of liquid refrigerant in the evaporator and to continuously adjust the flow of liquid refrigerant to the evaporator, to cause complete vaporization of the liquid refrigerant; andan electronic expansion valve located to monitor vapor refrigerant temperature entering the accumulator and operable to inject liquid refrigerant from the receiver into the vapor refrigerant to selectively lower the temperature thereof.