Patent ID: 7367200

Claim:
An ejector cycle device comprising: a compressor for compressing refrigerant; a refrigerant radiator disposed to radiate heat of refrigerant discharged from the compressor; an ejector including a nozzle portion which decompresses refrigerant flowing out of the refrigerant radiator by converting pressure energy of the refrigerant to speed energy thereof, the ejector having a refrigerant suction port from which refrigerant is drawn by a refrigerant stream jetted from the nozzle portion; a first evaporator for evaporating refrigerant flowing out of the ejector, the first evaporator having a refrigerant outlet coupled to a refrigerant suction side of the compressor; a branch passage, which is branched from a position between a refrigerant downstream side of the refrigerant radiator and the ejector, and is connected to the refrigerant suction port of the ejector; a throttle member disposed in the branch passage to decompress refrigerant and adjust a flow amount of refrigerant; a second evaporator disposed in the branch passage between the throttle member and the refrigerant suction port; and a defrosting means which is provided to perform a defrosting operation of one of the first and second evaporators while the other one of the first and second evaporators is operated to have a cooling function.