Patent ID: 7694528

Claim:
A heat exchanging apparatus for a vapor compression refrigerant cycle comprising: a first heat exchanger radiating heat of a first refrigerant into air, the first heat exchanger including a plurality of tubes arranged in parallel and a header tank arranged at longitudinal ends of the tubes such that a longitudinal axis of the header tank is perpendicular to longitudinal axes of the tubes; and a second heat exchanger performing heat exchange between the first refrigerant and a second refrigerant having pressure lower than that of the first refrigerant, wherein the second heat exchanger is integrated with the header tank of the first heat exchanger such that a longitudinal axis of the second heat exchanger is parallel to the longitudinal axis of the header tank; the second heat exchanger is forming a first passage, the first refrigerant is flowing through the first passage and a second passage, the second refrigerant is flowing through the second passage; the first passage and the second passage are arranged in parallel with each other; and the first passage is located between the header tank and the second passage; the heat exchanger further comprising: a gas-liquid separator separating refrigerant into a gas refrigerant and a liquid refrigerant and storing a surplus liquid refrigerant therein, the gas-liquid separator is integrated with the first heat exchanger such that the second heat exchanger is located between the first heat exchanger and the gas-liquid separator; and an ejector increasing pressure of the refrigerant, the ejector is integrated with the second heat exchanger and the gas-liquid separator.