75系列柴油机喷油嘴匹配试验研究

A Study on the Injection Fuel Nozzle Matching Experiment of 75 Diesel Engine Series

本文针对 75系列柴油机排烟严重的问题 ,通过改变喷油嘴及相关调整参数 ,利用多因素正交旋转回归设计安排试验 ,取得了较好效果 .在 375型柴油机上的实验结果表明 :进行优化匹配调整后 ,最大扭矩点烟度下降 2 4 2 % ,标定工况时烟度下降 53 8%

Regarding the serious smoke ejection of 75 diesel engine series, this paper points out that this problem could be solved by modifying certain parameters and employing gyrating regression design. The actual experiment on 375 diesel engine series shows that, after innovation, the maximum of smoke ejection of gyrating moment falls by 24 2 percent, and then the rating is demarcated, the smoke ejection falls by 53 8 percent.