喷油器开始喷油时，活塞距离上止点的曲轴转角称为喷油提前角。
文章详细信息 关键词： 柴油机;标定;喷油提前角;废气再循环 [gap=477]Keywords: diesel engine;calibration;fuel injection advance angle;EGR
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... fuel injection timing；喷油定时 fuel injection timing advance；喷油提前角 fuel injection timing calibration；喷油正时校正 ...
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喷油提前角调节装置 advancer
Therefore,it will be helpful for reducing soot emissions to increased fuel injection advance angle.2.
故增大喷油提前角有利于降低碳烟的排放。
参考来源 - CA6DL1If 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
试验结果表明在30度左右喷油提前角时综合油耗最低。
The experimental results showed that about 30 degrees of injection angle gave the lowest consumption of fuel.
结果表明，相同条件下：柴油机存在一个最佳喷油提前角使碳烟排放最少；
The result show that, under the same condition:the diesel engine has a best injection timing which makes the emission of soot least.
计算结果表明，选择合适的压缩比、喷油提前角，可以改善缸内的燃烧过程，降低燃油消耗率。
The calculation result indicates that choose the appropriate compression ratio, the Angle of fuel injection can improve the cylinder burn and reduce the fuel exhaust.
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