Heat release rules of LPG/diesel mixing fuel engine

The paper studied the influences of load, speed, mixing ratio, injection advanced angle and injection pressure on the rules of combustion pressure, heat release, ignition characteristics, etc. The results indicate that the ignition delay period of mixing fuel is obviously longer than that of diesel, the higher the mixing ratio is, the longer the ignition delay time is. When the mixing ratio is smaller, the maximum combustion pressure and the maximum pressure increasing rate of mixing fuel engine are as same as that of diesel, but when it is bigger, they are not so same as that of diesel. With the increase of mixing ratio, the maximum value of heat releasing rate increa-ses, and the crank angle delays. Injection advanced angle and injection pressure have influence on the combustion process.