| 摘要 |
PROBLEM TO BE SOLVED: To decrease charge air temperature and to improve a knocking limit, by heat exchanging low-pressure refrigerant immediately before being sent to an accumulator with engine charge air, in a system in which the low-pressure refrigerant from an air conditioner is returned to a compressor through the accumulator. SOLUTION: When a gas engine 1 is started, a blower 21 is driven through a turbine 18 of a supercharger 17 by energy of exhaust gas emitted in an exhaust pipe 20. Air-fuel mixture from a mixer 23 which is pressurized and of which temperature is increased to be supplied to a cylinder head 26 through a charge air pipe 25. In this case, a heat exchanger 12 is disposed on the way to the charge air pipe 25 to cool the gas-air mixture by low-pressure refrigerant supplied from a return pipe 14. An air conditioner 10 conditions air by high- pressure refrigerant supplied form a compressor 4. After the air-conditioning, charge air cooling is conducted by supplying the low-pressure refrigerant passed through the return pipe 14 having an accumulator 13 to the heat exchanger 12.
|
