| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve combustibility of fuel, and reduce a delivery rate of environmental pollution material in exhaust gas component by injecting fuel in a combustion region, and carrying out contact combustion, after a temperature of fuel is at least climbed up till a fuel ignition temperature in air pressure of the combustion region, in a heat engine such as a diesel engine. SOLUTION: Fuel in a fuel tank is led into a heat exchanger 7 utilizing heating of an engine main body by a feed pump 10, a temperature is climbed up, and then, fuel is led out to a high pressure supply pump 12. Fuel in the high pressure supply pump 12 is returned to the heat exchanger 7 by an operation of a fuel circulating pump 4, and a fuel temperature is improved. Fuel in the high pressure supply pump 12 is pressurized and supplied to a common rail 8 in association with an indication of an ECU. The common rail provided with a porous ceramic heater 16 inside is heated to an indication temperature, and fuel is heated. Fuel of set temperature and pressure is subsequently injected from all injection nozzles 17 into their respective cylinders for combustion.</p> |
