The precisely controlling of the timing of later pulse injections can get favorable piston spray targeting to efficiently utilize the oxidizer in the bowl to increase the combustion efficiency.

• 精确控制后期脉冲喷油时刻，使后期喷油落在燃烧室内，可以充分利用燃烧室凹坑内的新鲜空气，提高燃烧效率。