中国重汽天然气发动机培训部分英文.ppt

2020 3 18 济南复强动力有限公司 1 2020 3 18 济南复强动力有限公司 2 2020 3 18 济南复强动力有限公司 3 2020 3 18 济南复强动力有限公司 4 2020 3 18 济南复强动力有限公司 5 2020 3 18 济南复强动力有限公司 6 中国重汽天然气发动机培训教材ThetrainingofCNHTC snaturalgasengines 2020 3 18 济南复强动力有限公司 7 4 2 6 4 8 4Wheelbase3800mm 4600mm WT615engine230PS 340PSHW13710 High pressurecylindersgroup4 80L R L 4 120L B Triprangemileage300km4 80L 4 140L330km4 80L 8 140L530km 2020 3 18 济南复强动力有限公司 8 4tanks8tanks CNGTractor 2020 3 18 济南复强动力有限公司 9 Lightside Rightside 2020 3 18 济南复强动力有限公司 10 2020 3 18 济南复强动力有限公司 11 Controlsystem Inflationport 2020 3 18 济南复强动力有限公司 12 CNG8 4 CNGDumper 2020 3 18 济南复强动力有限公司 13 2020 3 18 济南复强动力有限公司 14 CNG8 4 2020 3 18 济南复强动力有限公司 15 LNGTractor LNGS38Tractor 2020 3 18 济南复强动力有限公司 16 LNG B 2020 3 18 济南复强动力有限公司 17 LNG R L 2020 3 18 济南复强动力有限公司 18 Gasificationdevice LNG 2020 3 18 济南复强动力有限公司 19 LNG L 2020 3 18 济南复强动力有限公司 20 LNGDumper 8 4 6 4 2020 3 18 济南复强动力有限公司 21 2020 3 18 济南复强动力有限公司 22 LNGchassis 2020 3 18 济南复强动力有限公司 23 1 CNHTC snaturalgasengines CNHTC snaturalgasengines itisCNHTC sfullyimplementforinternationalstrategy andtofurtherimprovetheenterprises independentinnovationabilityandthecorecompetitivepower biggerandstrongerCNHTC spowerenterprise accordingtothemarketdemandathomeandabroadandheavytrucktechnology sdevelopmenttrend intheoriginalWD615engines onthebasisof seriesdieselenginetodesignthegasengine Atpresent thenaturalgasengine spoweriscover230Hpto340Hp anditcanfullysatisfythemedium heavyvehiclesandvarioustypesofairbussupportingdemand 2020 3 18 济南复强动力有限公司 24 CNHTC snaturalgasenginesmainfittingschooseinternationalbrandordomestictop rankingsupplierofproducts withadvancedproductiontechnologyandequipmentsafeguardpartsprocessingandassemblyandadjustmentquality andtomaintainthe dieselenginewithWD615countriesmostpartsofthegeneralbasis focusingonintotheexhaustsystemandhead piston todesignfornaturalgasenginecompletelythecombustioncharacteristics themachineperformance reliabilityandeconomicindicatorsarebetterthandomesticproducts SinceCNHTC snaturalgasenginesontheinternationalanddomesticmarket usersreceivethewiderecognition industryinnaturalgasenginemarkettoformtheirownbrandadvantages the10literdisplacementgasenginetechnologyisthemostadvanced thequalityismostreliable 2020 3 18 济南复强动力有限公司 25 2 TheadvantagesofCNHTC snaturalgasengines CNHTC snaturalgasenginesiswiththeUnitedStatesEControlscompanyjointdevelopmentanddesigncompletelywithindependentintellectualpropertyrights withacontemporaryworldadvancedlevelofanewgenerationofelectrical rarenessburning fourvalvenaturalgasengines MoreeconomicWD615dieselenginepartsandversatility sparepartssupply maintenance andconvenient andgreatlyreducethemaintenancecosts Fourvalvestructuredesignhasgreatlyincreasedthethechargingefficiencyofengines thincombustionwaytomaketheenginehastheverygoodfueleconomy thelowestgasconsumptionfor195g kw H fuelcostsisfarlowerthanthedieselengine Econtrolssystemmaintenancecostlow Woodwardsystemmaintenancecostishigh forexample Woodwardnozzlesystem 2020 3 18 济南复强动力有限公司 26 MoreReliableInheritedWD615dieselengineuniqueaframestructure highstrengthreinforcedbody Vortexlowtemperatureback Strictqualitymanagementsystem mainfittingschooseinternationalbrandordomestictop rankingsupplier sproducts ensurethereliabilityofthemachine MoreenvironmentalprotectionBecauseoftheexhaustofnaturalenginenoparticles soinemissiontesttomeasurenotexhaustparticles anddieselengineemissiontestfortheexhaustparticleshavethestrictrequest throughthisproblemcanexplaintheemissionstandardsunderthesamenaturalenginesthandieselenginemoreenvironmentalprotection Thecompletewithindependentintellectualpropertyrightsreinforcementthebody effectivelyreducethevibrationandreducenoise Toachievethefourcountriesemissions 2020 3 18 济南复强动力有限公司 27 WT615seriesgasenginetechnologyparameters 2020 3 18 济南复强动力有限公司 28 2020 3 18 济南复强动力有限公司 29 3 WT615seriesgasenginemainstructure Reinforcedwidebody InheritedBritishRicardocompanyforthecountry dieselenginedesignreinforcementwidebodyandthecrankcase significantstrengtheningtheengineblockofthestiffnessandstrength improvetheheatloadoftheengine greatlyimprovetheengine sreliabilityandservicelife andatthesametimesignificantlyreducethevibrationandnoise 2020 3 18 济南复强动力有限公司 30 Fourvalvestructure ThroughtheWAVEcombustionsimulationandCFDfluiddynamicscalculation usingfourvalveinto exhaustsystemssothatthegasdistributionmoreuniformly aircoefficient burningmorefully effectivelyreducethegasconsumption Atthesametimefourvalvestructurestronginthemiddleofthesparkplugsofdecorate morebenefitattheignition 2020 3 18 济南复强动力有限公司 31 Airintakeandincreasethemiddlechamberoftheintakepipe MoresuitablefortheintakeofmixedfuelGasengine TheincreaseofchambershouldhelpReduceairflowpulsation beneficialtothemix pingBalancebetweeneachcylindertheflowofair 2020 3 18 济南复强动力有限公司 32 Exhaustmanifold B Toavoidputtingintheopenair eachcylinderexhaustbackpressurebetweenuniformityoftheburningandtheconsequentdeterioration getthroughtwoexhaustpassage soastominimizeexhaustbackpressurenotuniformity 2020 3 18 济南复强动力有限公司 33 4 Gassupplyandignitionthecharacteristicsofthesystem ECSEngineControlSystemEnginecontrolunitECMuseadvancedsoftwarecontrolelectronicthrottleandignitiontiming Nomatterwhatthecondition forexample highaltitude hightemperatureorhumidityishigh ECMsystemcanmakeuseoftheenginetemperature humidityandthemonitoringofatmosphericpressuresensorfeedbacktotheoperationoftheengineofthenumericalvalueofadjustment maketheenginekeepthebestperformanceandfueleconomy High energyelectronicignitionECMsystemcontrolislocateddirectlyonthesparkplugthehighenergyignitioncoilwork notthroughanyhighvoltagewires reducetheenergyoftheignitionloss andchooseplatinumelectrodesparkplug extendeditsservicelife increasethecombustionefficiency thusreducetheemissions 2020 3 18 济南复强动力有限公司 34 fuelsupplyThroughtherapidreactionpressureregulatorandtheoptimalcontrolofemptyfuelmixer enginesgetcontinuousfuelsupplytoreachoptimization achievethebestfueleconomyandthelowestemissions SlowdownofffuelfunctionDuringdeceleration ECMsystemtostopsupplygas intelligentcontrolelectronicthrottlevalvereducewastegasandputturbochargerspeedtogetthebestfueleconomy 2020 3 18 济南复强动力有限公司 35 OverspeedprotectionfunctionWhentheenginespeedthanthesetspeed thesystemautomaticallycutofffuelsupplies makespeeddown AdaptivefunctionTheexhaustoxygensensorsforfuelandoxygenconsumptionmeasurementengineprovidefeedbacksignal maketheenginehasbeencancontinuetoadapttochangingconditions andalwaysmaintainthebestworkingcondition 2020 3 18 济南复强动力有限公司 36 selfdiagnosticfunctionEnginemanagementsystemtoprovideafullrangeofstandarddiagnosticinformationJ1939 andcanoccurinmanyseriousproblemsdetectedbeforetheseproblems CommunicationECMsystemCANthroughtheCANbusconnections andCANbeeasilyobtainedothersystemofvehiclescommunications 2020 3 18 济南复强动力有限公司 37 Naturalgasenginecontrolsystem 2020 3 18 济南复强动力有限公司 38 Naturalgasenginestructurecontrolprinciplediagram 2020 3 18 济南复强动力有限公司 39 2020 3 18 济南复强动力有限公司 40 ECM 2020 3 18 济南复强动力有限公司 41 Electronicthrottle Electronicthrottlecontrollerisusedtocontroltheair fuelmixtureintotheengineofrate soastorealizetheloadcontrolandadjustmentoftheauxiliaryfunction Thecharacteristicsofelectronicthrottleisfasttransientresponseability Canrealizein50msopentoshutin 2020 3 18 济南复强动力有限公司 42 Air fuelmixer Mixerforfuelandairmixed canalsowillfuelsupplypressure accordingtothevolumeofairflowratioonfuelmeasurement 2020 3 18 济南复强动力有限公司 43 Highpowerelectronicpressureregulators EPR Highpowerelectronicpressureregulator HDEPR throughtheadjustmentofthegassupplypressuretocontrolthemixerenginefuelrate EnginemanagementsystemtocontroltheHDEPRfueldelivery theregulatorcanaccuratemeasurementforfuel achievetheoptimal themosteconomicfuelandinstantaneouscorresponding 2020 3 18 济南复强动力有限公司 44 温度传感器 基准压力口 基准压力管路 进空气 混合器 电子节气门 至进气歧管 燃料出口 燃料进口 2020 3 18 济南复强动力有限公司 45 HighpressureCNGregulator Highvoltageregulatorisamechanicallevel2pressure reliefdevices willthegassupplypressurefromCNG250baradjustmenttotheeightbar Regulatorwithacarfueltemperaturesensor whenthefueltemperatureisbelowallowlimit usedtolimitthepowerofenginestoprotectthedownstreamfuelsystemcomponents 2020 3 18 济南复强动力有限公司 46 6 Lowpressurefuelcut offvalve Lowpressurefuelcut offvalveeffect theenginewhenparkingwillEPRpartsanddownstreamandalloftheupperreachesofthefuelpressureblockingtoreducetheamountoffuelgathereddownstream Payattentiontolowvoltageelectromagneticvalveassemblydirection 2020 3 18 济南复强动力有限公司 47 7 TMAPsensor Turbochargedengineusingasensortomeasuretemperatureandpressure usuallybytemperatureandintakemanifoldabsolutepressure TMAP sensor TMAPsensorsinstalledintheintakemanifold usedtomeasuretheabsolutepressure maximum300kPa andtemperatureofthemixture FromTMAPgettemperatureinformationcanbeusedforcalculationoftheflowtemperaturecorrectioncoefficient 2020 3 18 济南复强动力有限公司 48 8 TIPsensor Comparedwithnaturallyaspiratedengines turbochargedusingrequiresasecondpressuresensor usedinthecalculationofairandthemeasurementofvalueofmixerinletpressure TIP TIPsensorusedformeasuringthepressureoftheairneartheentrancemixerisusedtoevaluatetheexhaustturbinefrontpressure PTP toaccuratelycalculatetheairflowvalueandcontrolturbochargerwastegasdoor TIPsensorcanhelpECMtodeterminethethrottleentrance theintakemanifoldandexhaustmanifold vortexfrontpressure airpressure Theinformationwasusedforpressurizationcontrol throttlecontrol ignitionmomentandfuelmeasurement 2020 3 18 济南复强动力有限公司 49 9 Theenvironmenttemperatureandhumiditysensor Theenvironmenttemperatureandhumiditysensorprovideairtemperature humidity andatmosphericpressureandotherinformation AccordingtotheenvironmenthumidityECMtooptimizetheignitionmoment fuelsupplyandsuperchargedlevel Atmosphericpressureandatmospherictemperaturefeedbacksignalsignalisusedtoadjusttheoxygensensorreadings 2020 3 18 济南复强动力有限公司 50 10 Thecamshaftpositionsensor CAM andcrankshaftposition CNP sensorThecrankshaftpositionsensorprovideenginespeedinformation thecamshaftpositionsensornoticeECMwhichcylinderincompressionprocess andsentouttheignitiontimeinstructions ECMisjustinthecombustioncyclictogivetheignitioncoilpowersupply 2020 3 18 济南复强动力有限公司 51 11 sparkingcoilECMsystemcontrolislocateddirectlyonthesparkplugthehighenergyignitioncoil notthroughanyhighvoltagewires Changecycleis60000kilometers 2020 3 18 济南复强动力有限公司 52 12 sparkplugHighpowerrarenessburningenginenecessaryvoltagecanbeupto40KVorhigher withthepassageoftime thesparkpluggapwillgraduallybecorrosionandexpand Sparkplugshouldbeinfirst0 254 0 406mm Useaspecialtooltearopenoutfit CNHTC sfactorysparkplugforNGKplatinumsparkplug type PFR7B D Changecycleis60000kilometers 2020 3 18 济南复强动力有限公司 53 13 Wastegasdoorcontrolvalves Wastegasdoorcontrolvalvesasaproportionteeelectromechanicalelectromagneticvalve adjusttheECMpulsewidthcanrealizeinanycasethepreciseboostercontrol Thisdeviceisequivalenttoasingleclasspressureregulator usedinthewastegasdoortheimplementationofthepressurepowercontrol ThepressuresensortotheECMfeedbackinformation providetheclosingthefeedbackloopcontroltoensurethatcanmaintainexhausttargetlocationandboostingpressuredoor ThevoltageandcurrentofthevalvebyECMcontrol 2020 3 18 济南复强动力有限公司 54 2020 3 18 济南复强动力有限公司 55 14 Widefieldwastegasoxygensensor Widefieldwastegasoxygensensor UEGO usedintherarenessburningapplication usedtodeterminetheinletairfuelthanthebalance Ifdischargeairtoothick willbeinthesensorwithinthea pump currenttoburnfuelconsumptionnottoachievethebalance conversely ifararedischargeair thereverseproducea pump currentconsumptionoftheexcessoxygenorfreeoxygentoachievethebalance Whenfreeoxygenorfreefueland voltagefeedbacksignalisreturnedtothebasicvalue Producethebalanceofthepumpelectriccurrentandimportsupplythanequivalentinproportion 2020 3 18 济南复强动力有限公司 56 15 Surgevalve Thesurgevalveisaturbineengineprotectiondevice Whentheturbochargerhighpressurizationstateinworkandthrottleclose inturbochargersandsolartermsbetweendoorplankhasgreatbackpressure thiswillmakethesuperchargersuddenlystopworking Thesurgevalveisintheclosedpositionusually Whenopening theturbochargerdownstreamofthehighpressureflowintothebackflowtotheair thiswillpreventturbochargercomponentsacceleratewearandfatigue 2020 3 18 济南复强动力有限公司 57 2020 3 18 济南复强动力有限公司 58 Thanks