The analysis of GDI engine soot emission based on spray and ignition timing tactics

摘要：

　　By the means of the simulation companied by the experiment of GDI engine,the distribution of fuel mixture and soot emission were taken into consideration under different ignition timing.In one injection model,the ignition retard can lessen the soot emission.Two stage spray in cold start,which contributes to catalyst heating operation immediately but triggers a deteriorative performance concerning the soot emission,could be ameliorated by ignition retard.The result shows that the appropriate spray and ignition timing strategy could contribute to the optimization of distribution of air-fuel ratio,streamlining of the circulation variation,the efficient performance,broad confines of extreme circumstance and reduction of the soot emission.

关键词： gasoline direct injection engine spray strategy ignition timing soot emission

作者: LIN Man-qun ZHOU Peng QIN Jing PEI Yi-qiang PAN Suo-zhu

作者单位: Internal Combustion Engine Research Institute,Tianjin University,Tianjin,china 300072;State Key Labo State Key Laboratory of Engines,Tianjin University,Tianjin,china 300072

会议类型: 国际会议

会议名称: the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT-2012)(2012年电机工程与信息技术国际会议)

会议地点: 沈阳

会议语种:英文

页码: 1769-1773

在线出版日期: 2012-09-26（万方平台首次上网日期，不代表论文的发表时间）