柴油机缸内后喷对DOC温度的试验分析  

Effect of In-cylinder Backfire on DOC Temperature

作　　者：曹明柱[1] 王晓鹏[1] 王云鹏[1] 陈怀望[1] 周全[1] 

机构地区：[1]安徽江淮汽车股份有限公司,安徽合肥230601

出　　处：《内燃机》2015年第4期52-54,57,共4页Internal Combustion Engines

摘　　要：为了满足国内五阶段排放法规的要求,颗粒捕集器正在成为降低颗粒物排放的首选方法。以采用DOC+DPF后处理系统的某型柴油机为样机,试验分析了缸内后喷对DOC温度的影响。结果表明,主喷正时、后喷正时、油量以及空燃比对DOC温度有直接影响。分析结果对D PF后处理系统的性能开发具有指导意义。In order to meet the domestic requirements of stage five emission regulation, diesel particulate filter is becoming preferred method of reducing particulate emissions. A diesel engine use of DOC＋DPF after treatment system as prototype, Through test data analysis the impact of cylinder post injection to DOC inlet gas temperature. The results show that： the main injection timing, post injection timing, mass and air-fuel ratio has a direct impact on the DOC inlet gas temperature. The results have guiding significance for the performance development of DPF after treatment system.

关 键 词：柴油机后处理 颗粒捕集器 缸内后喷再生 DOC温度 

分 类 号：TK427[动力工程及工程热物理—动力机械及工程]