第44卷第3期2023年6月Vol.44No.3June2023内燃机工程ChineseInternalCombustionEngineEngineering极限碳载量下催化型柴油机颗粒捕集器再生特性研究陈贵升1，曾辉许庆2，田文静1，张凯齐1，杨杰1，张涵1（1.昆明理工大学云南省内燃机重点实验室，昆明650500；2.昆明理工大学公共安全与应急管理学院，昆明650093）StudyontheRegenerationCharacteristicsofCatalyticDieselParticulateFilterUnderUltimateCarbonLoadCHENGuisheng1，ZENGHuixuqing2，TIANWenjing1，ZHANGKaiqi1，YANGJie1，ZHANGHan1（1.YunnanKeyLaboratoryofInternalCombustionEngine，KunmingUniversityofScienceandTechnology，Kunming650500，China；2.FacultyofPublicSafetyandEmergencyManagement，KunmingUniversityofScienceandTechnology，Kunming650093，China）Abstract：Athree-dimensionalcatalyticdieselparticulatefilter（CDPF）modelwasbuiltonthebasisofadieselenginewithhighpressureandcommonrail.TheresearchontheregenerationcharacteristicsofdifferentstructuresofCDPFundertheultimatecarbonloadwascarriedout.TheanalysisontheeffectsofashcontentandashdistributioncoefficientontheregenerationcharacteristicsofCDPFwithdifferentstructuresunderdifferentultimatecarbonloadconditionswasconducted.Inaccordancewiththeresults，itindicatesthatthemaximumtemperaturepeaksofCDPFofsymmetricalcelltechnology（SCT）andasymmetriccelltechnology（ACT）undertheultimatecarbonloadenhancewiththegrowthofultimatecarbonload.ThepressuredropofCDPFwithdifferentstructuresincreaseswiththegrowthoftheultimatecarbonloadandthedifferenceisobvious.Astheultimatecarbonloadincreases，thetemperatureoftheCDPFcarrierandthesootregenerationratehaverapidgrowthandthepeakvalueincreasessignificantly.ThepressuredropofCDPFandthemaximumtemperatureofthecarrierundertheultimatecarbonloadincreasewiththegrowthofashcontent，andthepressuredropfeaturesofCDPFwithdifferentstructuresarequitevarious.ThemaximumtemperatureoftheSCTstructurecarrierishigherthanthatoftheACTstructure.Withthegrowthofashcontent，thesootregenerationrateofCDPFfirstincreasesandthendecreases，andthesootregenerationratehasrapidincreaseandhighpeakvalueunderh...
