| 摘要 |
PROBLEM TO BE SOLVED: To effectively use waste heat from an engine cooling water circuit and a steam compression type refrigerator on a vehicle. SOLUTION: This heat management system is provided with a water refrigerant heat exchanger 30 to carry out heat exchange between a refrigerant before discharged from a compressor 21 and flowing into a radiator 22 and engine cooling water circulating in an engine cooling water circuit 10 and a by-pass passage 25 to lead the refrigerant before flowing in an evaporator 24 to the water refrigerant heat exchanger 30 by making it by-pass the evaporator 24 and the compressor 21, heats the engine cooling water by the high pressure refrigerant by operating the compressor 21 by closing the by-pass passage 25 at the time of promoting warming of the engine 11 and efficiently cools the engine cooling water by using phase change of the refrigerant by leading liquid phase refrigerant to the water refrigerant heat exchanger 30 by opening the by-pass passage 25 at the time of compensating capacity of the radiator 12. COPYRIGHT: (C)2004,JPO&NCIPI |
