| 摘要 |
PROBLEM TO BE SOLVED: To provide a combination type cooling plant/heat pump for an automobile for performing cooling, heating and dehumidification in a cabin by a ventilation system. SOLUTION: A refrigerant circuit of a combination type cooling plant/heat pump (1) is thermally coupled with a ventilation system (3) via an internal heat exchanger system, and the internal heat exchanger system has two function units A and B (41 and 42). The function units A and B (41 and 42) are switched to a condenser/gas cooler of a heat pump in the heating mode, and to an evaporator of a cooling plant in the cooling mode. One of the function units A and B (41 and 42) is switched to the evaporator and the other is switched to a condenser/gas cooler in the combination mode of dehumidification and re-heating mode. More preferably, the cooling plant/heat pump is operated with carbon dioxide as a refrigerant. COPYRIGHT: (C)2004,JPO |
