L11-1 燃油储存系统讲解

FuelStorageFuelStorageIntroduction

Theprimarypurposeoffuelsysteminclude:storeandsupplyfuel

Therearemanysubsystemoffuelsystem:Fuelstorage【燃油储存】andpressurefueling【压力加油】Fuelfeed(engine&APU)【供油（发动机及APU）】Defuel【抽油】Fuelquantityindicatingsystem(FQIS)【油量指示系统】Fueltemperatureindication【燃油温度指示】FuelStorageUsingthewetwingconcept,allfuelisstoredinthreetanks,maintank1,maintank2,andcentertank,whichareconstructedoftheprimarywingstructure.使用湿机翼的理念，所有的燃油都储存在三个油箱中，由基本机翼结构所构成的1号、2号主油箱和中央油箱。Frontandrearspars,topandbottomwingskinsandselectedwingribsaresealedinternally【adv.内地；内心地】toformthetanks.Thecentertankisinthefuselageandtheleftandrightwingroot.FuelStorageFuelStorageThemaintanksarelocatedoutboard【adj.外侧的】ofthecentertank.Thesurgetanks【防波（通气）油箱】,designedtocollectfueloverflow,areoutboardofeachmaintank.FuelStorageHowmanytanksofthe737NG?Andhowmanytanksusedtostorefuel?Whataboutothers?

Onecentertank,leftandrightmaintank,twosurgetanksWhichcomponentsconstructthefueltank?

Frontandrearspars,topandbottomwingskins,andselectedwingribsFuelStorageSomepartsinthefueltank:accesspanels,wingribs,cutouts【切口】,checkvalves,andsumpdrainvalves【集油放泄活门】FuelStorageWingfueltankaccesspanels【接近盖板】permitentryintoeachfuelandsurgetank.Thewingfueltankaccesspanelsareonthebottomwingskin.FuelStorageWingribsdividethefueltanksintobays【n.设备舱，机舱】.Wingfueltankaccesspanelsarebetweenthewingribs.Accessacrosswingribstoadjacent【adj.相邻，相邻的】baysisthroughcutouts【n.切口，断流器】.Wingrib8,inmaintank1andmaintank2,hascheckvalves【单向活门】.Thecheckvalvesletfuelflowinboardbutdonotletfuelflowoutboard.FuelStorageThesump【n.污水坑，集油槽】drainvalvesletfuel,water,andc