FEV公司推出单位排量功率105kW-L柴油机
FEV公司推出单位排量功率105kW-L柴油
机
2011年4月王小臣,等:DOC对柴油机排放微粒中碳质组分的影响?59?
参考文献:
[1]
[2]
[3]
[43
Es]
WiIliamsR,CreasonJ,ZweidingerR,eta1.Indoor, Outdoor,andPersonalExposureMonitoringofPar—
ticulateAirPollution:theBaltimoreElderlyEpidemi—
ology-expourePilotStudy[J].AtmosphericEnviron—
ment,2000,34:4193—4204.
刘巽俊.内燃机的排放与控制I-M].北京:机械工业出
版,2005:42—5O.
RheadMM,HardySA.TheSourcesofPolycyclicAr—
omaticCompoundsinDieselEngineEmissions[J].Fu el,2003,82:385—393.
FungKochy.ParticulateCarbonSpeciationbyMnO2 Oxidation[J].AerosolScienceandTechnology,1990
127. (12):1Z2—
BrichME,CaryRA.ElementalCarbon—BasedMethod
forMonitoringOccupationalExposurestoParticulate DieselExhaust[J].AeroslolScienceandTechnology, 1996(25):221,24】.
[6]GaryHA,CassGR,HuntzickerJJ,eta1.Character—
istsofAtmosphericOrganicandElementalCarbon
ParitculateConcentrationsinLosAngelesEJ].Envi一
[7]
[83
[9]
ronmenta1ScienceandTechnology,1986(20):580—
589.
YuShaocai.DennisRobinI,BhavePrakashV,eta1.
PrimaryandSencondaryOrganicAerosolsovertheU—
nitedStates:EstimatesontheBasisofObservedOrg—
nicCarbonandElementCarbon(EC),andAirQuality
ModeledPrimaryOC/ECRatios[J].AtmosphericEn—
viroment,2004,38:5257-5268.
BrichME,DahmannDirk,FrickeHajo—hennig.Corn,
parisonofTwoCarbonAnalysisMethodsforMonito,
ringDieselParticulateLevelsinMines[J~.Journalof
EnviromentalMonitor,1999(1):l627l630.
KeskinenJ,PietarinenK,IehtimakiM.Electrical
Low—pressureImpactor[J].JournalofAerosolSci—
ence,l992,23(4):353—360.
InfluenceOfDoConCarbonContentofDieselEngineParticulate WANGxiao—chen,WANGJian—hal,GEYun—shan,ZHONGXiang—lin
(1.ChinaAutomotiveTechnology&ResearchCenter,Tianjin300162,China; 2.NationalLabofAutoPerformance&EmissionTest,BeijingInstituteofTechnology,
Beijing100081,China)
Abstract:ForadieselengineequippedwithDOC,thecarboncontentofparticulatewasresear
chedwiththeIMPROVE(in—
teragencymonitoringofprotectedvisualenvironment)TORmethod.Theresultsshowthatth
eTC(totalcarbon)emissionrate
increaseswithloadincreaseandthetrendismoredistinctwhenthespeedincreases.TheECem
issionincreaserateishigher
thanthatoftheOCwithloadincrease.Inaddition,D0CcandecreaseOCemissionrateby20,6O,butdecreasetheECe-
missionless.Atmediumspeed,theinfluencesofloadincreaseonOClandEC2emissionratear
eobvious.Onthewhole,the
proportionbetweencomponentsinOCandECchangesslightlyafterDOC.
Keywords:dieselengine;DOC;particulate;composition[编辑:袁晓燕] ?
信息?
FEV公司推出单位排量功率105kW/L柴油机
201o年6月,德国FEV发动机技术公司推出了新一代高效燃烧系统(HECS)柴油机.创新的HECS柴油机验证了FEV
公司显着改善性能指标的小型化
.HECS柴油机单位排量功率1O5kw/I,单位排量扭矩300N?m/I,不需采用附加的
NOr降低技术就可以达到欧?水平.在对排放和单位排量功率指标进行平衡时,所需供油量主要是通过增加喷油器流量来
实现的,满足欧?要求的方案有带和不带DeNO~两种,视技术开发策略而定.对于质量在1590kg以下的车辆,只需采用柴
油微粒捕集器(DPF),而对于较重的车辆则需采用DeNO和DPF. HECS柴油机排量1.6I,最高燃烧压力22MPa,经过进一步优化标定功率从128kW提高到】68kW.与此同时,在
1500,3000r/min的转速范围扭矩升高到470N?m.这些技术进展为未来进一步小型化奠定了发展基础.采用由固定几
何增压器(FGT)和可变几何涡轮增压器(VTG)组成的二级涡轮增压系统提高增压压力.这些改进反映了发动机需要在功
率,燃油消耗和声学特性方面建立良好平衡标定的要求.[张然治供稿]