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ID:51445633
大小:1.40 MB
页数:24页
时间:2020-03-22
《汽车专业英语ppt全套配套课件优化word教案参考译文4 Chapter 2.6-2.7.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、复习提问(教师说发动机配气机构汉语部件名称,同学回答英文名称)翻译VVT英文片段学习内容本次课学习内容、目标和重点难点学习目标难点重点EFIsystemsGDI1.掌握EFI的原理、主要组成系统部件的英文名称;掌握EFI的分类英文术语2.掌握GDI系统的控制原理和控制模式1.重点为记忆英文专业术语、GDI控制原理2.难点需要记忆的生词偏多3.汉译准确表达也是难点Chapter2InternalCombustionEngine2.6GasolineElectronicFuelInjectionSystemassemb
2、ly[ə'sembli]n.组合,安装,装配,总成entrance['entrəns]n.入口(处),进入,登场deliver[di'livə]v.输送,传送,投递,交付port[pɔ:t]n.港口,机场,孔,气道subsystem['sʌbsistim]n.子系统section['sek∫ən]n.部分,片,段2.6.1NewWordsandPhrasesdelivery[di'livəri]n.输送,传送,投递,交付receive[ri'si:v]v.接收,得到evaluate[i'væljueit]v.估算,
3、评价,求值indicate['indikeit]v.表明,象征,暗示coolant['ku:lənt]n.冷却液Chapter2InternalCombustionEngine2.6GasolineElectronicFuelInjectionSystemChapter2InternalCombustionEngine2.6GasolineElectronicFuelInjectionSystem1.TypesofPulseFuelInjectionSystemsIntheelectronicfuelinjec
4、tionsystem,theinjectormaybeopenedandclosedbyelectricalsignals.Thisisapulsefuelinjectionsystem.Thepulseinjectionsystemisusuallyelectronicallycontrolled.Althoughthereareanumberofdesigndifferencesbetweenvariouspulsefuelinjectionsystems,theoperatingprinciplesareve
5、rysimilar.Thethrottlebodyinjectionsystem(Fig.2-9left)usesanassemblycontainingoneortwofuelinjectors.Theassemblyismountedattheentrancetotheintakemanifoldandinjectsfuelaheadofthethrottlevalve.Thesesystemsarealsocalledsingle-pointinjection(SPI)orcentralfuelinjecti
6、on.Multi-pointinjectionsystems(Fig.2-9right),alsocalledmulti-portinjection(MPI)systems,deliverfuelattheengineintakeportsneartheintakevalves.2.6.2TextChapter2InternalCombustionEngine2.6GasolineElectronicFuelInjectionSystem2.PulseFuelInjectionSystemComponentsTh
7、etypicalpulseinjectionsystem(Fig.2-10)canbebrokenintothreesubsystems:Airinductionsystem.Thesystemconsistsofanaircleanerassembly,throttlebody,andintakemanifold(Fig.2-10).Thethrottlebodysectioncontainsthethrottlevalve,whichisopenedandclosedbythedrivertocontrolth
8、eamountofairenteringtheintakemanifold.Fueldeliverysystem.Thefueldeliverysystem(Fig.2-10)providesthefuelwhichmixeswiththeair.ThemainpartsofthesystemareshowninFig.2-11andFig.2-12.Pre
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