二冲程汽油机着火时刻的火焰光谱分析  

Analysis on Ignition Flame Spectra of Two - stroke Gasoline Engine

作　　者：盛凯夫[1] 谢伟[2] 安承武 陈小迅[3] 王仲芝[3] 

机构地区：[1]华中理工大学汽车系,武汉市430074 [2]华中理工大学 [3]东风汽车工程研究院

出　　处：《内燃机工程》1999年第4期52-54,共3页Chinese Internal Combustion Engine Engineering

基　　金：国家自然科学基金

摘　　要：二冲程汽油机排气污染严重，尤其是燃烧混合油、浓混合气时有害物排放量大，着火时刻火焰光谱分析表明，CH（431．5nm）及C2（516．5nm）自由基光强峰值比较强，尤其是CN（387nm）自由基光强峰值比较突出。根据Fenimore机理可以解释然气中NOx的生成机理。The exhaust emission of two-strode gasoline engine is severe,especially when in burns rich mixture of blended fuel. The analysis on the ignition flame spectra shows that the peak luminous intensities of three characteristic spectra CH (431. 5um) C2(516. 5nm) and CN (387nm) are sarong with the prominence of the peak luminous intensity of CN (387nm). The mechanism of NOx formation in the exhaust gas can be illustrated according to - Fenimore theorem.

关 键 词：光谱法 燃烧 光纤传感器 汽油机 着火 

分 类 号：TK411.2[动力工程及工程热物理—动力机械及工程]