2023年第4期DPF降怠速再生影响因素研究周明胜,曲兴年,张楠楠,辛喜玲(潍柴动力扬州柴油机有限责任公司,江苏扬州225009)摘要:基于降怠速(Drop-To-IdleDTI)再生的特点,运用试验手段分析了降怠速再生时颗粒捕捉器(DPF)内部温度场分布,研究了不同碳载量下和不同时刻进入降怠速工况主动再生对DPF内部最高温度的影响。结果表明:随着碳载量的增加,降怠速工况再生DPF内部载体最高温度变高,DPF载体损坏风险变大,同时降怠速工况再生DPF内部载体的最高温度受进入降怠速工况的时刻影响。关键词:降怠速;主动再生;最高温度中图分类号:TK421+.5文献标识码:A文章编号:1674-957X(2023)04-0016-03ResearchonTheFactorsAffectingtheDPFDroptoIdleRegenerationZhouMing-sheng,QuXing-nian,ZhangNan-nan,XinXi-ling(WeichaiPowerYangzhouDieselEngineCo.,Ltd.,Yangzhou225009,China)Abstract:Basedondrop-to-idleregenerationcharacteristicsofdieselparticulatefilter(DPF),thedistributionoftemperaturefieldinsidetheDPFduringtheactiveregenerationatdrop-to-idleopeningmodeisanalyzedbymeansoftest,andtheinfluenceofactiveregenerationatdifferentcarbonloadsanddifferenttimesenteringdrop-to-idleopeningmodeonthemaximumtemperatureinsidetheDPFisstudied.Theresultsshowthatwiththein-creaseofthecarbonload,themaximumtemperatureoftheDPFcarrieratdroptoidleregenerationincreases,andtheriskofdamagetotheieselparti...