492Q汽油机燃用液化石油气后NO_x排放规律的试验研究  

An Experimental Research on the NO_x Emissions of the 492Q Gasoline Engine Using LPG

作　　者：黄振洲[1] 许忠厚[1] 马凡华[1] 

机构地区：[1]清华大学汽车安全与节能国家重点实验室,北京100084

出　　处：《内燃机学报》2001年第2期139-142,共4页Transactions of Csice

摘　　要：介绍了在 492 Q汽油机上燃用液化石油气 (L PG)的台架试验结果 ,得到了其在中高转速下 NOx 排放同空燃比、负荷以及点火提前角等参数之间的关系 ,并将试验结果同汽油机进行了对比。试验结果表明 ,汽油发动机在燃用 L PG燃料时 ,NOx 排放会有所增加 。Bench tests of a 492Q gasoline engine using LPG were carried out and the results are presented.The relations between NO x emissions and air fuel ratio,load,ignition timing of the LPG engine at medium and high speed are discussed and compared with gasoline engine.The bench tests show that the NO x emission of the engine using LPG is higher than those of the engine using gasoline,and some technique must be introduced to reduce the NO x emissions.

关 键 词：汽油机 液化石油气 氧化氮排放 台架试验 

分 类 号：TK417[动力工程及工程热物理—动力机械及工程]