Patent ID: 6550265
Filing Date: 2003-04-22
Classification: B60H,F25B

Abstract:
An ejector cycle system comprising:a compressor for sucking and compressing refrigerant; an exterior heat exchanger for performing heat-exchange between the refrigerant and air outside a compartment; an interior heat exchanger for performing heat-exchange between the refrigerant and air inside the compartment; an ejector including a nozzle for converting a pressure energy of high-pressure side refrigerant to a speed energy so that the high-pressure side 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 sucked from a low-pressure side are mixed; a gas-liquid separator for separating refrigerant from the ejector into gas refrigerant and liquid refrigerant, and for storing refrigerant therein and a switching device disposed to switch one of a cooling operation where refrigerant in the interior heat exchanger absorbs heat from the compartment to cool the compartment and a heating operation where refrigerant in the interior heat exchanger radiates heat to the compartment to heat the compartment, wherein: in the cooling operation, a flow direction of refrigerant flowing through one of the exterior heat exchanger and the interior heat exchanger is identical to a flow direction of refrigerant flowing through the one of the exterior heat exchanger and the interior heat exchanger in the heating operation.