氧氮比值对非直喷式柴油机特性和废气排放的影响

The Effects of Oxygen/Nitrogen Ratios on the Performance And Emissions of an I.D.I Diesel Engine

讨论了改变进气充量中氧气的分压力对非直喷式柴油机输出性能、NO_x 排放和产生的燃烧噪声的影响。通过分析一些实验表明,增加氧气的进气量会导致点火延迟时刻极大减小以及降低燃烧噪声。然而,燃油经济性、输出功率和废气温度几乎保持不变,NO_x 排放随氧的加入而成比例增加。

The main purpose of this study was to determine the effects of the partial pressure of oxygen in the intake charge of an I.D.I diesel engine on the output performance,NOx emissions and generated combustion noise.The research revealed that enriching the intake level of oxygen led to a large decrease in ignition delay and reduced combustion noise.However,the fuel economy,the power output and the exhaust temperature remained almost constant.NOx emission increased pro rata with the oxygen added.