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gOil&GasNuovoPignonegOil&GasNuovoPignoneSumpareasandbearinglocationsGasTurbineOrientationINLETCOMPONENTSExhaustcomponentFrontFrameAXIALCOMPRESSORCOMP.REARFRAMELPTurbineHSPTHPTurbineCombustionsystemgOil&GasNuovoPignoneThefrontframesupporttheforwardofcompressorshaft,housetheinletgearboxandtheAsumpgOil&GasNuovoPignoneTheinletgearboxlinksthecompressorrotorwiththeaccessorygearboxAGBbytheradialshaftgOil&GasNuovoPignoneTheinletgearboxtrasmitthetorquefromtheaccessorygearboxtotheturbineshaftduringthestartupAndfromthegasturbineshafttotheAGBduringthenormaloperationofthegasturbinegOil&GasNuovoPignonegOil&GasNuovoPignoneAbearingisarollertypebearing.ItsupporttheradialloadoftheforwardpartofthecompressorrotorgOil&GasNuovoPignoneTheLM2500+compressorisa17stage,axial-flowcompressor.ItincorporatesVIGVsandvariablestatorsinstages0through6toprovidestall-freeoperationandhighefficiencythroughoutthestartingandoperatingrange.Thecompressionratiois23:1gOil&GasNuovoPignoneTheHPcompressorisderiveddirectlyfromtheTF39CF6-6aircraftengine.ThiscompressorincorporatesvarioussystemthatwillbebetterhandleonGASTURBINESYSTEMchapter.gOil&GasNuovoPignoneThestatorcasinghousetheVIGV’ssystemandtheVSV’ssystemandtheairextractionmanifoldformultipourposescope.Thecompressorrotorisassembledwithamultispoolassemblysystem.gOil&GasNuovoPignoneRotorStg.0-1Stg.2to16CouplinggOil&GasNuovoPignonegOil&GasNuovoPignoneTheCompressorstatorconsistsofafour(upperandlower)caststatorcasethatcontainsthecompressorstatorvanes.gOil&GasNuovoPignonegOil&GasNuovoPignonegOil&GasNuovoPignone•TwocasemadeofM-142steel•Boltedhorizontalsplitallowon-sitemantenaince•manifoldforairextraction•murphyproof(onewayistallation)•supportVSVsystemgOil&GasNuovoPignoneAirextractionfor:•SUMPpressurization•SUMPcooling•BLEEDforflametemperaturecontrolinDLEapplication•BLEEDHPrecoupairgOil&GasNuovoPignone•Actuator•pushrods•TorqueshaftgOil&GasNuovoPignoneShrouds1and2includeinterstageairsealsurfaceofteflon®bondedonthealluminiumshroudsgOil&GasNuovoPignoneShrouds1and2includeinterstageairsealsurfaceofteflon®bondedonthealluminiumshroudsgOil&GasNuovoPignoneThereisaporteverystatorvanestageforispectionofalltheLM2500pluscompressorrotorbladesgOil&GasNuovoPignoneThecfrsupport:•theBsump•thehub•the1°and2°stgHPTnozzle•thecombustionsystem.gOil&GasNuovoPignoneCRFoutercasesupportthecombustorandthefuelnozzle.gOil&GasNuovoPignoneSUMPBareahouses4rollerbearingand4ballbearing.4rbearingsupporttheradialloadofrearshaftofcompressor.4bbearingsupportthethrustloadofcompressor.gOil&GasNuovoPignoneMainpartsofcombustionsectionare:•combustionliner•fuelnozzle•ignitorgOil&GasNuovoPignone•Cowlassemby•outerandinnerliner•domeplateareagOil&GasNuovoPignoneLINERCOWLASSEMBLYgOil&GasNuovoPignonegOil&GasNuovoPignonegOil&GasNuovoPignoneHPT(highpressureturbine)consistofanaircooled2stg.turbinegOil&GasNuovoPignoneStg1andstg.2statoriccasingarehousedinthenozzlecasing(oroutersupport).Stg1nozzleisboltedontheaftofCRFbyaanularsupport.Stg.2consistof24nozzlesegment.gOil&GasNuovoPignoneStg.1nozzleassemblygOil&GasNuovoPignone•STRUTforsupportingtheHUB•COOLINGtroughthestrutgOil&GasNuovoPignoneSumpareasandbearinglocations