DPF再生对柴油机性能的影响  

Effect of DPF Regeneration on Diesel Engine Performance

作　　者：蒋小明 马登慧 王云 JIANG Xiaoming;MA Denghui;WANG Yun(Strategic Sourcing Center,YTO Group Corporation,Luoyang 471004,China;YTO(Luoyang)Diesel Engine CO.,LTD,Luoyang 471004,China)

机构地区：[1]中国一拖集团有限公司战略采购中心,河南洛阳471001 [2]中国一拖(洛阳)柴油机有限公司,河南洛阳471004

出　　处：《拖拉机与农用运输车》2023年第4期32-34,共3页Tractor & Farm Transporter

摘　　要：非道路国四柴油机主要有两种控制技术路线:DOC+DPF+SCR与EGR+DOC+DPF,由于国四排放标准中PN限值,DPF技术运用成为首选。从柴油机排气温度对DPF再生的影响、柴油机排气流量对DPF再生的影响、柴油机尾气中NO_(2)含量对DPF再生的影响、柴油机尾气中O_(2)含量对DPF再生的影响和不同微粒对DPF再生特性的影响方面进行分析,阐述DPF再生对国四柴油机性能使用的重要影响,为非道路国四柴油机DPF结构优化和国四拖拉机使用提供参考。There are two main control technology routes for non-RoadⅣdiesel engines:DOC+DPF+SCR and EGR+DOC+DPF.Due to the PN limit in NationalⅣemission standards,DPF technology becomes the first choice.This paper analyzes the influence of diesel exhaust temperature on DPF regeneration,the influence of diesel exhaust flow on DPF regeneration,the influence of NO_(2) content in diesel exhaust on DPF regeneration,the influence of O_(2) content in diesel exhaust on DPF regeneration,the influence of different particles on DPF regeneration characteristics.This paper describes the important influence of DPF regeneration on the performance of China diesel engine,and provides help for the optimization of DPF structure of non-road China diesel engine and the use of China Diesel tractor.

关 键 词：PN限值 PM排放 DPF再生 DPF再生影响 NO_(x)含量 

分 类 号：TK429[动力工程及工程热物理—动力机械及工程]