| 摘要 |
PURPOSE:To enhance immediate effectiveness of heat-exchange at the time of cooling an engine by providing a water valve for controlling flow quantity to a heat exchanger as well as a water valve for a heater core, in a heater pipeline for transmitting engine cooling water to the heat exchanger in a refrigerant pipeline. CONSTITUTION:A compressor 1, an evaporator 3 and a condenser 4 are connected to each other by means of refrigerant pipelines 2, and the refrigerant pipelines 2 are connected to a meandering forming part 7 passing through a heat exchanger 8 via receiver tanks 6a, 6b. In the heat exchanger 8, the cooling water for an engine 9 is circulated by means of a heater pipeline having a water valve. In such an air conditioner with a heat pump structure, a first water valve 11 is provided in a heater pipeline 10a between the engine 9 and the heat exchanger 8. Meanwhile, a bypass line 10b is disposed in the heater pipeline 10a, and then, a heater core 12 and a second water valve 13 are provided in the bypass line 10b. |
