Patent ID: 6584794
Filing Date: 2003-07-01
Classification: F25B

Abstract:
An ejector cycle system comprising:a compressor for sucking and compressing refrigerant; a radiator which cools refrigerant discharged from the compressor; an evaporator for evaporating the refrigerant to obtain cooling capacity; an ejector including a nozzle for converting a pressure energy of high-pressure refrigerant from the radiator to a speed energy so that the high-pressure refrigerant is decompressed and expanded, and a pressure-increasing portion in which the speed energy is converted to the pressure energy so that the pressure of refrigerant is increased while refrigerant discharged from the nozzle and gas refrigerant from the evaporator are mixed; a gas-liquid separator for separating refrigerant flowing from the ejector into gas refrigerant and liquid refrigerant, the gas-liquid separator having a gas refrigerant outlet coupled to a refrigerant suction side of the compressor, and a liquid refrigerant outlet coupled to a side of the evaporator; and a bypass passage through which refrigerant discharged from the compressor is introduced into the evaporator while bypassing the ejector and the gas-liquid separator, in a defrosting operation for defrosting the evaporator.