【7A文】航空喷气式飞机CRJ-200Power-Plant英文培训课件.ppt

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1、1POWERPLANT2GeneralElectricCF-34-3B-144InchFanDiameter103InchesLong14:1CompressionRatio3TF-34UsedonA-104CF34-3B1TwinSpoolHighBypassTurbofanTakeoffthrust8,729lbsperengine9,220lbsonAutomaticPerformanceReserve(APR)5TWINSPOOLFANPOWERTURBINEN1COMPRESSORN266:1BYPASSRATIOBYPASSCORE7FAN4-STAGEPOWERTURB

2、INE7300RPM–FULLPOWER98.6%N1-MaxContinuousCF34-3B-1BASICPARTSN18EngineconstructionTheFan-CalledN128TitaniumbladesDrivenby4-stagelowpressureturbineApproximately7,300rpmatfullpowerResponsibleforupto80%ofthetotalthrustProducesbypassair9FANINLETBYPASSDUCT1018-STAGEAXIALCOMPRESSOR2-STAGEHIGHPRESSUR

3、ETURBINE17,000RPM–FULLPOWERN2--HIGHPRESSURESPOOL1411COMPRESSORSECTION18stageaxialflowcompressorVariableGeometry(VG)Inletguidevanesandfirst5stagesofstatorvanes.RegulatedbyFuelControlUnit12VGSYSTEM13CANANNULARCOMBUSTIONCHAMBER14COMBUSTIONCHAMBER15FUELNOZZLES14PERENGINEDUALORIFICE16EXCITEREXCITE

4、RCOMBUSTIONRINGIGNITIONSYSTEMIGNITERIGNITER17EXCITERUNITS18IGNITIONSYSTEM……….IGNITERPLUG19ACCESSORYGEARBOXACCESSORYGEARBOX20ACCESSORYGEARBOX21ACCESSORYGEARBOXConnectedtoN2StarterN1AmplifierAlternatorFuelpumpOilpumpHydraulicpumpSNAFOH22OILSYSTEM7-QUARTNACELLETANKENGINE-DRIVENPUMPBYPASSABLEOILFIL

5、TEROIL/FUELHEATEXCHANGEROILREPLENISHMENTSYSTEM“ENGINEOIL”AURALWARNING(Below25psi)23FILTERFUELOILCOOLERBY-PASSLENGOILPRESSRENGOILPRESS24AirTurbineStarter25AIRTURBINESTARTERPOWEREDBYHIGHPRESSUREAIRAPUX-SIDEENGINE(Min85%N2)AIRCART(Min40psi)APU26ENGINEMONITORING27ENGINEMONITORINGDATACONCENTRATORU

6、NITS(DCU’S)--COLLECTSENSORDATAFMSDETERMINESPOWERSETTINGSCOLORCODEDDISPLAYEICASWARNINGSGREENAMBERREDENGINEOILENGINEOVERSPEEDNOSTARTERCUTOUTAPRARMEDCONTIGNITION28IgnitionModesNormal(AorB)IgnitionduringstartcycleonlyEvendays,useA.Odddays,useB.Battery-onlystart,useBContinuousUsedforthefollowing

7、conditionsTakeoffandlandingsoncontaminatedrunwaysCrosswind15ktsorgreaterModerateorheavyrainModerateorheavyturbulenceVicinityofthunderstormsAutomaticIgnitionStallwarningcomputertriggerscontinuousignitionathighAOA.29ENGINESTART*AirS