汽油改天然气发动机燃烧特性研究

The Combustion Characteristic Research of the Natural Gas Engine

对天然气发动机进行外特性试验,对比天然气发动机在不同进气VVT提前角和天然气与空气不同混合方式下的燃烧特性。实验结果表明,进气道多点喷射方式混合气更均匀,对燃烧更好,经济性更优,进气VVT提前角在20deg时发动机燃烧特性更佳。

By comparing the combustion characteristic of the natural gas engines external characteristic under different intake VVT advance Angle and mixture of natural gas and air,the experiment results show that multi-point injection way more evenly,better for combustion,better economical efficiency and engine combustion characteristic is better when air intake VVT advance at 20 deg.