| 二次放热量随着后喷射油量的增加而增大，二次放热峰值随着后喷射间隔的变大而变小。缸内燃烧平均温度随着后喷的加入，主喷的减少而降低。
2、在适当的后喷射参数下，随着后喷间隔的增加，NOx的排放逐渐递减，同时随着后喷射油量的增加，NOx的排放亦逐渐递减。在后喷间隔角度在5°CA～15°CA，后喷脉宽在150ms～350ms之间，烟度的排放均有不同程度的降低。但是HC排放和燃油消耗率随着后喷射间隔角的增加呈递增的变化趋势。
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