Patent ID: 8099977

Claim:
A refrigerant cycle device comprising: a compressor; a gas cooler; a pressure reducing device; an evaporator, the compressor, the gas cooler, the pressure reducing device and the evaporator being in fluid communication to form a closed loop; and a heat exchanger to heat-exchange a refrigerant discharged from the gas cooler and a refrigerant discharged from the evaporator, the heat exchanger including a first passage connected to an outlet of the gas cooler and containing the refrigerant discharged from the gas cooler and a second passage connected to an outlet of the evaporator and containing the refrigerant discharged from the evaporator, wherein the refrigerant in the first passage flows downward, and the refrigerant in the second passage flows upward, and the outlet of the evaporator is disposed at a higher position than an inlet of the second passage.