To provide an engine-driven air conditioning device that can effectively utilize exhaust heat of an engine in both of a cooling operation and a heating operation with a simple constitution.
The engine-driven air conditioning device includes: a first auxiliary heat exchanger 16 disposed in a first cooling liquid supply path 36 that can supply a cooling liquid of a cooling liquid circuit 30 for heating a refrigerant by the cooling liquid in the heating operation, and functioning as an evaporator of the refrigerant; a second auxiliary heat exchanger 33 disposed in a second cooling liquid supply path 37 independent from the first cooling liquid supply path 36 that can supply the cooling liquid of the cooling liquid circuit 30, for increasing a pressure of a working fluid of a Rankine cycle circuit 40 by the cooling liquid in the cooling operation; and first and second electronic expansion valves 38, 39 respectively disposed in the first and second cooling liquid supply paths 36, 37 for opening the first cooling liquid supply path 36 and closing the second cooling liquid supply path 37 in the heating operation, and closing the first cooling liquid supply path 36 and opening the second cooling liquid supply path 37 in the cooling operation.
MINEMURA YUJI
WADA TETSUO
IWATA TOMOAKI
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Makoto Onda