Patent ID: 7757514

Claim:
An ejector-type refrigerant cycle device, comprising: a compressor that sucks and compresses refrigerant; a radiator that radiates heat from the high-pressure refrigerant discharged from the compressor; an ejector having a nozzle portion that depressurizes and expands refrigerant on a downstream side of the radiator, and a refrigerant suction port through which refrigerant is sucked by the flow of refrigerant jetted at high speed from the nozzle portion; a first evaporator having a refrigerant outflow side connected to a suction side of the compressor and a refrigerant inflow side connected to a refrigerant outflow side of the ejector; a first branch passage that branches a flow of refrigerant upstream of the ejector and guides the branched flow of refrigerant to the refrigerant suction port; a first throttling means that is disposed in the first branch passage and depressurizes and expands refrigerant; and a second evaporator that is disposed in the first branch passage downstream of the first throttling means, wherein: a refrigerant evaporating pressure of the second evaporator is lower than a refrigerant evaporating pressure of the first evaporator; and the first throttling means is provided with a fully opening function, and fully opens the first branch passage when the second evaporator is defrosted.