碳烟累积对汽油机颗粒捕集器性能的影响

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【摘  要】文章简单介绍缸内直喷汽油机内颗粒物的生成机理、汽油机颗粒物捕集器的结构、工作原理,综述GPF内碳烟累积对GPF捕集效率、背压和再生性能的影响,并对GPF未来的发展进行展望。

【关键词】缸内直喷汽油机;汽油机颗粒物捕集器;碳载量;捕集效率;背压;再生

中图分类号:U464.136    文献标识码:A    文章编号:1003-8639( 2024 )06-0035-04

Research Progress on the Effect of Soot Loading on the Gasoline Particulate Filter

CHU Mengen,CHEN Xi,JIANG Xueming,SHEN Ruihao,MAO Haifeng

(SAIC Volkswagen Automotive Co.,Ltd.,Shanghai 201805,China)

【Abstract】This article briefly introduces the mechanism of soot generation in GDI engines,the structure and working principle of Gasoline Particulate Filter(GPF),and reviews the effect of soot accumulation in GPF on filtration efficiency,back pressure and regeneration performance,and provides an outlook on the future development of GPF.

【Key words】GDI;GPF;soot loading;filtration efficiency;back pressure;regeneration

1  引言

在经济蓬勃发展的背景下,中国汽车工业快速发展,机动车的产量和保有量逐年上升,能源短缺和环境污染问题日益突出。(剩余7638字)

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