基于机油掺烧的发动机和燃烧器GPF快速积灰试验对比研究

Comparative Study on GPF Rapid Ash Accumulation Test for Engine and Burner Based on Oil Mixed firing

本文研究了基于机油掺烧的发动机和燃烧器GPF快速积灰试验方法,分析了影响试验的关键因素,确定了试验方案,并分别在两个平台上进行了快速积灰样件的制备。试验后,从灰分捕集率、背压变化和CT扫描等方面对两个平台的试验结果进行了比较,得出了在特定的试验工况条件下,可以使用两种平台达到相同的快速积灰试验效果的结论。这为研究通过发动机台架或燃烧器平台获得等效实车试验灰分样件提供了参考。

This article studies the GPF fast ash accumulation test method for engines and burners based on oil mixed firing,analyzes the key factors affecting the test,determines the test plan,and prepares rapid ash accumulation samples on two platforms.After the experiment,the experimental results of the two platforms were compared in terms of ash capture rate,back pressure change,and CT scan,then the conclusion was drawn that under specific experimental conditions,the same rapid ash accumulation test effect can be achieved.This provides a reference for the study of obtaining equivalent actual vehicle test ash samples through engine benches or burner platforms.