If the advance angle of injection is adjusted earlier, the density of the com- bustion chamber is small and its temperature is low, when the fuel is injected into the combustion chamber. So it needs long time to atomization.
喷油提前角是影响燃烧滞燃期的重要参数，喷油提前角大的工况，燃油喷入燃烧室时缸内空气的密度小，温度低，燃油雾化所需时间长，sauter平均直径大，油滴汽化的表面积越小，所以油束雾化效果不好。
参考来源 - 直喷柴油机燃用二甲醚缸内工作过程CFD模拟·2,447,543篇论文数据，部分数据来源于NoteExpress
Soot formation can be restrained hence the emission of soot can be decreased with the increased injection advance Angle.
增大供油提前角可以减少燃烧过程前期的碳粒生成量，进而降低碳粒排放。
It's the first time to question extensively the influences of fuel delivery advance Angle and injection pressure on performance of E30 engine.
首次系统地研究了供油提前角、喷嘴启喷压力对E30混合燃料发动机性能的影响。
The maximum network output error of fuel injection pulse width and ignition advance Angle is less than 1%, with an average error of less than 0.
喷油脉宽和点火提前角的网络输出最大误差小于1%，平均误差小于0。
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