Machinery and electronic control of diesel injection common rail diesel injection of the main differences in the performance of the supply of fuel to the fuel injection method and the moment of choice.

Traditional mechanical fuel injection system of hydraulic high-pressure pipeline is an instant high-voltage fluctuation, mainly by the plunger for the formation of oil. This pulse of the fuel injector fuel injection stability have great impact, making injector easily lead to fluctuations in fuel injection, high pressure fuel pipeline Zhongshi a pressure wave, the pressure wave in high-pressure pipeline in return oscillation, in the next cycle Fluctuations will have the effect of weakening or superimposed. Thus, the fuel-air particles emitted uneven, a second-or multiple-jet spray, which did not fully burn, the deterioration of the economy, the driving force of the drop, thermal efficiency, emissions increase.

Traditional mechanical fuel injection system of the main injector is subject to the impact load, the load through the adjustment of fuel injection and governor earlier this oil amended, but can not be achieved precise control.