搜索
AircraftfuelsystemName:XXXXXXID:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXAbstract：Aircraftfuelsystemisasubsystemofmanysystems,itsfunctionistostorefuel,andensurethattheprovisionsofanystate(suchasvariousflightaltitude,flightattitude),theenginecanpresstherequiredpressureandflowcontinueduninterruptedfuelsupplytotheengine.Inaddition,thefuelsystemcanalsocompletetherestoftheaircraftcoolingsystem,thebalanceoftheaircraft,maintainaircraftcenterofgravityinthecontextoftheprovisionsofotheradditionalfeatures.Generalcivilaircraftfuelsystemincludingfueltanksystem,addtheoildrainsystemfortheoilsystem,fueltankventilationpressurizationsystem,fuelmeasurementsystems,signalindicatorsystemandtheheatloadsystem.Keywords:aircraftfuel；systemForoilsystem；Fueltank；Thecharacteristicsoffuel;Thecorrosion;SafetyandtroubleshootingThebodyofthePaperA:ThecompositionofthefuelsystemAsafueloilsystem,theremustbeatleastfueltanks,pipes,oilfilter,cut-offvalveandoil,scale,etc.Thesimplestoffueloilsupplysystemistorelyongravitypistonengineoilsystem.Tankhasaheightrelativetothecarburetor,toformeapressureandmakegasolinecanreachthecarburetor.Havearefuelingattanktop,isalsothefueltankvent.Adrainatthebottomofthetank,itisalsoasewageoutlet.Thereisashut-offvalveandfiredamperbeforetheoilfilterbefore.Anotherstartpumpusedtooilatstartup.Fuelsystemconsistofthefueltank,fueltankventilationsystem,gas/oilemergencyoildrainsystem,fuelsupplysystem,airsystemandinstructions/warningsystem,etc.B:Thefunctionofthefuelsystema:Storageoffueloilb:InstipulatedflightconditionsbythesafeandreliabletransferfueltotheengineandAPUbythesafelyandreliablyc:Adjustthecenterofgravityposition,keepthebalanceandstressofthewingstructured:Coolingaccessories,ascoolingsourceC:Thecharacteristicsofthefuelsystema:Thebigfuelloadb:Oilsupplysecurityc:canremovetheoilpumpnottoputoilpumpfastdischarge,improvethemaintenanceperformanced:Thevisualizationofthefuelcontrolpanele:Avoiddeadoilf:Usingpressurerefuelingg:Ventilationfueltankh:EmergencyoildischargesystemD:Demandforthefuelsystema:Toensurethetakeoff,landing,start,andhighaltitudecanworkefficiently,thefuelpumpGeneralinstalledinthebottomofoiltank,alsomusthavetheenoughpowerwhentheenginedrivenpumpfailstoreplaceit.b:Whenallboosterpumpfail,thetankstillcansupplytheenginefuelrelyingongravitydrainageordrivenbytheengineoilpumpsuctioneffect,c:Eachtankhastwoboosterpumpatleast.atleastonepumptopumpoutthefuelforanyfuelloadundernormalflightattitude,d:Enginefuelsystem,shouldbesuppliedfromtherespectiveofoiltank.Whenemergency,onetankcansupplyalltheengine.e:Fuelsystemshouldbecouldcrosstheoil,butcannotbeinthetankwiththeoverflow.f:Tankshouldbeventilated.Ventilationsystemscanprovidesufficientventilationflowrateinanyflightcondition,andcanpreventthefueloverflowfromtheventpipe.Fueltankcanmakeventilationsystemwithpositivepressure,notanegativepressure,toensuretheboosterpumpoperationisnormal.g:Withwatercollectionanddrainagefacilities,toeliminatewaterandcontaminatedthedirtyoil.h:Oilsumptank,aventilationshouldbetakentostopfueltoclosedtooverflow,collectedafterthefuelinthemainfueltanktomostofthefuelconsumption,bygravityflowintothemaintank.i:Fuelpipesizeshouldbeguaranteedbymaximumflow,andnosharpbendsinsmallradiusbendingandrisingorfalling,becausetheseplaceswillcausethevaporconcentrationcausestheairplug.j:Allinternalandexternalfueltankandaccessoriescanbecloseto,inordertorepair.E:KindsofthetankAircraftfueltankisusedtostorefuelneededfortheplane.Aircraftfueltankhasthreetypes,namelysofttank,fueltankandtankstructure.(1)softtankSofttankismadeofoilresistantrubber,rubberandspecialclothsuchasagglutinationandbecome,generallyusedinolderplanesandsomesinglewingaircraftinthemiddleofthetank.Atpresent,thesofttankinlargepassengerplanehasrarelyused.(2)thehardtankMadefromanticorrosionabilitystrongaluminummanganesealloyenclosure,insidethesuitcaseistopreventtheoilsloshingperforatedbaffle,baffleplatecanimprovethestrengthandstiffnesstank.Atpresent,thehardtankoftenasauxiliaryfueltankinthemiddleofthelargeaircraft.(3)thestructureofoiltankAircraftfueltankadoptingthestructure,itisusingthestructureoftheaircraftfuselage,thewingsortailelementconsistsofthefueltankdirectly,asshowninfigure2.Structuretypeisalsoknownastheoveralltanktank.Integraltypeoiltankispartoftheaircraftstructure,sointheplacesuchasjoints,structuralfastenersandclosetotheflapshouldbeproperlysealed.Tankoftheadvantagesofthestructurecanpreventtheoiltankofinsideoftheribsthatshake,atthebottomoftheribshaveaone-wayvalve,theoilfromthewingtiptowingroot.Structurecanmakefulluseofthecharacteristicsofthefueltankisthevolumeinthebody,increasestoragecapacity,andreducetheweightoftheaircraft.F:TankofthearrangementAplanewillarrangemultiplefueltank,thatis,thecentralwingfueltankandthefueltank,alsohaveontheoutsideofthemainfueltankaerationtank.Someaircraftareequippedwithtailbalancingtankandtheauxiliaryfueltanks.(1)thecentralfueltanksCentralmailboxislocatedinthecentralwingbox,insidethefueltankplatecanpreventthefuelthatshakewhentheplaneflyinthemotor.Flight,toreducethebendingmom