| 摘要 |
PROBLEM TO BE SOLVED: To improve heating efficiency with high control accuracy for an engine-driven heat pump driving a refrigerant compressor with an engine. SOLUTION: A liquid refrigerant introduced from a downstream side of an indoor heat exchanger 7 is vaporized with exhaust heat of the engine 1. A plurality of second heat exchangers 10 are provided for supplying the vaporized refrigerant to an upstream side of the indoor heat exchanger 7. The second heat exchangers 10 are provided with a means 21 for detecting quantity of the liquid refrigerant, and controlled for a sequential changeover. COPYRIGHT: (C)2004,JPO |
