基于碳氢喷射系统工况的DPF再生实验研究  

Experimental Study on DPF Regeneration Based on Hydrocarbon Injection System

作　　者：朱万冬[1] 梁郑岳 陈晓克[1] 李常侃 叶玉胜 ZHU Wandong;LIANG Zhengyue;CHEN Xiaoke;LI Changkan;YE Yusheng(Yuchai Machinery Co.,Ltd.,Nanning 537005,Guangxi Zhuang Autonomous Region,China;Department of Transportation Engineering,Guangxi Technological College of Machinery and Electricity,Nanning 530007,Guangxi Zhuang Autonomous Region,China)

机构地区：[1]广西玉柴机器股份有限公司,广西南宁537005 [2]广西机电职业技术学院交通工程学院,广西南宁530007

出　　处：《天津科技》2024年第2期41-44,共4页Tianjin Science & Technology

摘　　要：通过发动机台架实验,在设定氧化催化器(Diesel Oxidation Catalyst,DOC)和颗粒捕集器(Diesel Particulate Filter,DPF)入口温度的条件下,研究了排气尾管燃油喷射频率和碳氢混合器对DOC的碳氢化合物的转化性能,得出了DOC性能的变化规律,并通过了整车验证。实验结果表明:DPF入口温度和碳氢喷射量得到了较好控制,驻车再生效率达94%,行车再生效率达90%,整车油耗改善了3.3%。Through engine bench test,the effects of exhaust tailpipe fuel injection frequency and hydrocarbon mixer on diesel oxidation catalyst(DOC)hydrocarbon conversion performance were studied under the fixed inlet temperature of DOC and diesel particulate filter(DPF),and the mechanical properties of DOC performance were obtained,which was verified by the vehicle.The experimental results show that the DPF inlet temperature and the amount of hydrocarbon injection are well controlled,the parking regeneration efficiency is up to 94%,the driving regeneration efficiency is up to 90%,and the fuel consumption of the vehicle is improved by 3.3%.

关 键 词：碳氢喷射 氧化催化器(DOC) 颗粒捕集器(DPF) 碳氢排放 

分 类 号：TK427[动力工程及工程热物理—动力机械及工程]