Patent ID: 7823401

Claim:
A refrigerant cycle device comprising: a compressor for compressing and discharging refrigerant; a radiator for cooling high-temperature and high-pressure refrigerant discharged from the compressor; an ejector including a nozzle portion for decompressing and expanding the refrigerant on a downstream side of the radiator, and a refrigerant suction port from which refrigerant is drawn by a refrigerant flow jetted from the nozzle portion at high velocity; a branch portion for branching a flow of the refrigerant flowing out of the ejector into at least a first refrigerant stream and a second refrigerant stream; a first evaporator for evaporating the refrigerant of the first refrigerant stream branched by the branch portion to allow the refrigerant to flow to a suction side of the compressor; a second evaporator for evaporating the refrigerant of the second refrigerant stream branched by the branch portion to allow the refrigerant to flow to an upstream side of the refrigerant suction port, and a refrigerant distribution unit that includes an introduction pipe for allowing the refrigerant to flow thereinto, a first leading pipe for allowing the refrigerant to flow to the first evaporator, and a second leading pipe for allowing the refrigerant to flow to the second evaporator, wherein the branch portion maintains a dynamic pressure of the refrigerant flowing out of the ejector, wherein the branch portion and the second evaporator are connected without a throttling therebetween and the dynamic pressure of the refrigerant flowing out of the elector generally equal to a dynamic pressure of the refrigerant flowing into the second evaporator; wherein the branch portion is located inside of the refrigerant distribution unit, and wherein an inflow direction of the refrigerant in the introduction pipe is substantially the same as an outflow direction of the refrigerant in the second leading pipe.