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

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.