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

Man-qun LIN, Peng ZHOU, Jing QIN, Yi-qiang PEI, Suo-zhu PAN
2012 Proceedings of the 2nd International Conference on Electronic and Mechanical Engineering and Information Technology (2012)   unpublished
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
more » ... te 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.
doi:10.2991/emeit.2012.392 fatcat:27lx445hvzchzgpag645n3h2si