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1、Designation:D6894?13StardTestMethodfEvaluationofAerationResistanceofEngineOilsinDirectInjectedTurbogedAutomotiveDieselEngine1ThisstardisissuedunderthefixeddesignationD6894thenumberimmediatelyfollowingthedesignationindica

2、testheyearofiginaladoptioninthecaseofrevisiontheyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesaneditialchangesincethelastrevisionreapproval.INTRODUCTIONAnyproperlyequippe

3、dlabatywithoutoutsideassistancecanusetheproceduredescribedinthistestmethod.HowevertheASTMTestMonitingCenter(TMC)2providesreferenceoilsanassessmentofthetestresultsobtainedonthoseoilsbythelabaty.Bythesemeansthelabatywillkn

4、owwhethertheiruseofthetestmethodgivesresultsstatisticallysimilartothoseobtainedbyotherlabaties.FurthermevariousagenciesrequirethatalabatyutilizetheTMCservicesinseekingqualificationofoilsagainstspecifications.FexampletheU

5、.S.ArmyimposessucharequirementinconnectionwithseveralArmyenginelubricatingoilspecifications.AccdinglythistestmethodiswrittenfusebylabatiesthatutilizetheTMCservices.Labatiesthatchoosenottousethoseservicesmaysimplyignethos

6、eptionsofthetestmethodthatrefertotheTMC.ThistestmethodmaybemodifiedbymeansofinfmationlettersissuedbytheTMC.3InadditiontheTMCmayissuesupplementarymemarelatedtothemethod.Fotherinfmationrefertotheresearchreptfthistestmethod

7、.41.Scope1.1Thistestmethodwasdesignedtoevaluateanengineoil’sresistancetoaerationinautomotivedieselengineservice.ItiscommonlyreferredtoastheEngineOilAerationTest(EOAT).Thetestisconductedusingaspecified7.3Ldirectinjectiont

8、urbogeddieselengineonadynamometertestst.ThistestmethodwasdevelopedasareplacementfTestMethodD892afteritwasdeterminedthatthisbenchtestdidnotcrelatewithoilaerationinactualservice.TheEOATwasfirstincludedinAPIServiceCategyCG4

9、in1995.NOTE1—CompaniontestmethodsusedtoevaluateengineoilperfmancefspecificationrequirementsarediscussedinthelatestrevisionofSpecificationD4485.1.2ThevaluesstatedinSIunitsaretoberegardedasstard.Nootherunitsofmeasurementar

10、eincludedinthisstard.1.2.1Exception—WherethereisnodirectSIequivalentfexamplescrewthreadsnationalpipethreadsdiameterstubingsize.1.3Thisstarddoesnotpurpttoaddressallofthesafetyconcernsifanyassociatedwithitsuse.Itistherespo

11、nsibilityoftheuserofthisstardtoestablishappropriatesafetyhealthpracticesdeterminetheapplicabilityofregulatylimitationspritouse.1.4Thistestmethodisarrangedasfollows:SectionScope1ReferencedDocuments2Terminology3SummaryofTe

12、stMethod4SignificanceUse5Apparatus6ReagentsMaterials7PreparationofApparatus8Calibration9TestProcedure10DeterminationofTestResults111ThistestmethodisunderthejurisdictionofASTMCommitteeD02onPetroleumProductsLiquidFuelsLubr

13、icantsisthedirectresponsibilityofSubcommitteeD02.B0.02onHeavyDutyEngineOils.CurrenteditionapprovedMay12013.PublishedMay2013.iginallyapprovedin2003.Lastpreviouseditionapprovedin2011asD6894–11.DOI:10.1520D689413.2ASTMTestM

14、onitingCenter(TMC)6555PennAvenuePittsburghPA1520064489.3UntilthenextrevisionofthistestmethodtheASTMTestMonitingCenterwillupdatechangesinthetestmethodbymeansofinfmationletters.InfmationlettersmaybeobtainedfromtheASTMTestM

15、onitingCenter(TMC)6555PennAvenuePittsburghPA1520064489.Attention:Administrat.www.astmtmc.cmu.edu.Thiseditionincpatesrevisionscontainedinallinfmationlettersthrough121.4SupptingdatahavebeenfiledatASTMInternationalHeadquart

16、ersmaybeobtainedbyrequestingResearchReptRR:D021379.ASummaryofChangessectionappearsattheendofthisstardCopyright?ASTMInternational100BarrHarbDrivePOBoxC700WestConshohockenPA194282959.UnitedStates13.1.12usedoiln—anyoilthath

17、asbeeninapieceofequipment(fexampleanenginegearboxtransfmerturbine)whetheroperatednot.D41753.2DefinitionsofTermsSpecifictoThisStard:3.2.1aerationn—inliquidstheactionofimpregnatingwithairthatfmsfoambubblesinonthesurfaceofa

18、liquidisentrainedasadispersioninthatliquid.3.2.2flushn—theactionofcleaningouttheengineoilsystemusingnewtestoiltoremoveanyresiduesaswellastominimizepossiblecarryovereffectfromtheprevioustestoil.3.2.3HEUIn—hydraulicallyact

19、uatedelectronicallycontrolledunitinject.94.SummaryofTestMethod4.1Thetestengineisa1994unitbuiltbyInternationalTruckEngineCpation10(ModelNo.A215).ThisengineisequippedwiththeHEUIfuelsystem.9Itisinstalledinafullyinstrumented

20、testcell.4.2Thetestsequenceconsistsofafivestepwarmupperiodfollowedbyaonestepevaluationperiodf20hatmaximumpower.4.3Aeratedoilsamplesaretakenafter1h5h20hthepercentoilaerationiscalculatedfromtheinitialvolumethefinalvolumeaf

21、tersittingundisturbedf30min.5.SignificanceUse5.1Background—IntheHEUIfuelsystemtheengineoilfromtheoilsumpnotonlylubricatestheengineitalsosuppliesahighpressureoilsystemthattakesoilfromthemaingallerypressurizesitupto20.7MPa

22、inaplungerpump(seeFig.A1.1).Thisoilisusedtooperateunitinjectsthatwhenusedincombinationwithintensifiersincreasethefuelinjectionpressureupto145MPaindependentofenginespeed.Theelectroniccontrolspermitvariedinjectiontimingdur

23、ationtoprovideoptimumfueleconomyemissions.Thissystemmayhowevercirculatealltheoilinthesumpinapproximately8sasaconsequenceaerationoftheoilcanoccurwithsomeengineoils.Internationaldeterminedthat8%oilaerationwasthelimitbeyond

24、whichengineoperationperfmancewouldbeimpairedinactualservice.5.1.1Prito1994theabilityofanenginelubricanttoresistaerationwasmeasuredbyTestMethodD892.DuringthedevelopmentoftheAPICG4categyin1994howeveritwasfound11thatthisben

25、chtestdidnotcrelatewithaerationintheInternationalT444Eengine.TheEOATwasdevelopedtherefetoprovideabettermeasurementoftheabilityofalubricanttoresistaerationduringengineoperation.ThistesthasbeenincludedinAPICG4CH4CI4categie

26、sfheavydutydieselengineoils.5.2Method—Thedataobtainedfromtheuseofthistestmethodprovideacomparativeindexoftheaerationresistanceofengineoilsusedinmediumheavydutytruckdieselengines.5.3Use—Thetendencyofengineoilstoaerateindi

27、rectinjectionturbogeddieselenginesisinfluencedbyavarietyoffactsincludingengineoilfmulationvariablesoiltemperaturesumpdesigncapacityresidencetimeoftheoilinthesumpthedesignofthepressurizedoilsystems.Insomeengineoilactivate

28、dinjectionsystemstheresidencetimeoftheoilinthesumpisinsufficienttoallowdissipationofaerationfromtheoil.Asaconsequenceaeratedoilcanbecirculatedtotheinjectintensifiersadverselyaffectingtheinjectiontimingacteristicsengineop

29、eration.6.Apparatus6.1TestEngine—Thetestengine1213isanInternational19947.3LdirectinjectionturbogedV8dieselengineratedat160kWat3000rpm.TheenginemodelnumberisA215.TheenginearrangementisshowninFigs.A1.2A1.3thelubricationsys

30、teminFig.A1.4.ThisengineisequippedwiththeHEUIfuelsystem(see5.1Fig.A1.1).DetailsoftheenginearedocumentedintheInternationalT444EDieselEngineServiceManualfTruckApplicationFmEGES121datedApril2002.14Theengineserialnumbercarri

31、esthedesignation7.4JU2UXXXXXX.Thetestengineisinstalledinafullyinstrumentedtestcell.6.1.1EngineModification—Installa1?4in.malenationalpipethread(NPT)stainlesssteelhexnipple1513inthethreadedoutletontheright(passenger)sideo

32、ftheengine’shighpressureoilreservoir.Installa1?4in.femaleNPTinletoutletstainlesssteelballvalveontothehexnipplewiththeflowarrowfacingawayfromthereservoir.Installa1?4in.maleNPTtomaleNo.4SAE(JIC)37flarestainlesssteeladapter

33、fittinginthedownstreamsideoftheballvalve.Makeupapolytetrafluoethylene(PTFE)linedstainlesssteelbraidNo.4hosewithfemaleswivelNo.4SAE(JIC)37femaleflarefittingsoneachend.Theoveralllinelengthshouldbeapproximately115cm.Modifya

34、maleNo.4SAE(JIC)37flareto1?4in.fractionaltubefemalecompressionadapterfittingsothatthereisa0.394mmificethroughthefitting.a37.5cmlong1?4in.thinwallsteelfractionaltube(thisistobethesamplew)intothefemalecompressionadaptertig

35、hten.Fsafetyinstallaninsulatinghlearoundthesteeltubetoavoidbeingburnedwhileholdingthew.6.2PowerAbsption—Installa186kWeddycurrentabsptiondynamometerinthetestcell.9GlasseyS.FStocknerA.R.FlinnM.A.“HEUI—ANewDirectionfDieselE

36、ngineFuelSystem”SAEPublication930270HowerM.J.MuellerR.A.OehlerkingD.A.ZielkeM.R.“TheNewNavistarT444EDirectInjectionTurbogedDieselEngine”SAEPublication930269.10HereinafterreferredtoasInternationalwhichisthetrademarkoftheI

37、nternationalTruckEngineCpation.11McGeehanetal.“TheWld’sFirstDieselEngineOilCategyfUsewithLowSulfurFuel:APICG4”SAEPublication981371.12ThesolesourceofsupplyoftheengineknowntothecommitteeatthistimeisFranklinPowerProducts400

38、NthFsytheSt.FranklinIN46131.13IfyouareawareofalternativesupplierspleaseprovidethisinfmationtoASTMInternationalHeadquarters.Yourcommentswillreceivecarefulconsiderationatameetingoftheresponsibletechnicalcommittee1whichyoum

39、ayattend.14AvailablethroughanyauthizedInternationaldealer.15Thehardwarespecifiedinthissectionmaybesourcedfromthefollowingsuppliers:NuproCompany4800East345thSt.WilloughbyOH44094ParkerHannifinCpation1300NthFreedomSt.Ravenn

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