GMW14379 Muffler Condensate Expulsion Test

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1、WORLDWIDETestProcedureENGINEERINGGMW14379PowertrainIntegrationSTANDARDSMufflerCondensateExpulsionTest3.3TestVehicle/TestPiece.Completenew1Scopeexhaustsystem.Mufflertestpiecesfittedwithsensorsaccordingtoparagraph4.1.3.Note:Nothinginthespecificationsupersedesapplicablelaws

2、andregulationsunlessspecific3.4TestTime.exemptionhasbeenobtained.Calendartime:1day1.1Purpose.ThisTestProcedurespecifiestheTesthours:8hoursperformanceandevaluationofatestforcondensationformationandexpulsionfromCoordinationhours2hoursmufflers,particularlyrearmufflerswithou

3、tanydrain3.5TestRequiredInformation.Notapplicable.holes.3.6Personnel/Skills.Notapplicable.1.2Foreword.Thistestshalldeterminethecondensationexpulsioncharacteristicsandtheretentiontimeofexhaustcondensateinmufflers4Procedurewithinaprescribeddrivingprofile.Thetestenables4.1P

4、reparation.anassessmentofthepossiblecorrosion4.1.1ConditioningofTestParts.Testvehiclecharacteristicsofmufflers.andtestpiecesshallcompletethreeconsecutive1.3Applicability.Forallmufflers,particularlyrearextraurbanoperatingcycles,TypeITestPart2,mufflerswithoutanydrainholes.

5、per70/220/EECAnnexIII,Appendix1.Afterconditioning,testpiecesshallbedriedwithhotair,2ReferencesTgas=100±20°C,for30±5minutestoensuretheyarefreeofresidualcondensate,waterNote:Onlythelatestapprovedstandardsareabsorbingoils,etc.priortotestingperparagraphapplicableunlessotherw

6、isespecified.4.3.2.1ExternalStandards/Specifications.4.1.2TestPartMass.Themufflersystemshallbe70/220/EECweighedbeforeandafterconditioningper2.2GMStandards/Specifications.paragraph4.1.1toverifytheexhaustsystemisfreeofresidualcondensate,water-absorbingoils,Noneetc.priortot

7、estingperparagraph4.3.2.3AdditionalReferences.4.1.3SensorPositions.ThepositionoftheDrawingIP64090250mufflerinthevehiclechassisshallbeknowninordertodeterminethemeasuringpointsinallthe3Resourceschambersexpectedtoremainhumidthelongest.3.1Facilities.CalibratedvehicleexhaustO

8、nehumiditysensorandtemperaturesensorsforemissionsrollerteststandorequivalentonwhichmaterialsurfaceandex