The analysis of combustion parameters in cylinder shows that the ignition delay reduces, peak combustion pressure decreased and combustion process becomes more smooth.
对气缸内参数的分析表明，滞燃期缩短，最高燃烧压力降低，燃烧过程较为柔和。
2
Because of a decrease in the lower air, the fuel in the boiler reducer low concentration combustion, is also very smooth.
因为减少了下部风量，锅炉减速机使燃料在低浓度燃烧时，也非常平稳。
3
Spark ignition is beneficial to the smooth transition between the combustion modes for SI/HCCI hybrid engine.