High Quality Diesel injector Nozzle DLLA155SM067 105025-0670 Fuel Nozzle Spare Part

The influence of pre-injection on the main injection combustion process has been studied in the literature. The results show that the combustion product of pre-injection has an inhibitory effect on the main injection combustion. When the advance Angle of pre-injection is large, the right amount of pre-injection can improve the NOx emission. The influence of post-injection was discussed in the literature, and it was found that increasing the post-injection volume and interval could reduce the NOx production, but the fuel economy was worsened. The effects of injection pressure and injection timing on fuel consumption and emissions under EGR atmosphere have been studied in the literature. The results show that appropriate injection pressure and injection timing can optimize fuel consumption. On the other hand, because the cylinder diameter of low-speed two-stroke Marine engine is up to hundreds of millimeters, in order to make full use of the air in the combustion chamber, two or more fuel injectors are generally arranged outside the cylinder, and the arrangement of fuel injectors will also have a significant impact on the combustion process. A study on the injection Angle of a two-stroke diesel engine has been carried out in the literature, and it is found that adjusting the injection direction can reduce the NOx production by 20%. The influence of the nozzle direction on combustion and emission was studied in the literature. The results showed that the nozzle direction was too close, and local oil-rich areas in the cylinder were generated, which increased soot emission. Too divergent nozzle direction will increase the thin mixture, reduce fuel consumption but increase NOx emission.