奥迪全系自学手册（SSP）：SSP443_en.pdf

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1、ServiceTrainingSelf-studyProgramme443The1.2l77kWTSIenginewithturbochargerDesignandFunctionThis1.2l77kWTSIenginereplacesthe1.6l75kWenginewithintakemanifoldinjection.Comparedwiththelatter,thisengineachievessignificantlybetterperformancewithsignificantlyreducedfuelco

2、nsumptionandthereforelowerCO2emissions.TheaspectofCO2emissionshasnowbecomeanimportantfactorwhichinfluencesthecustomer'spurchasingdecision.VolkswagenisconsistentlypursuingitsTSIstrategyandiscontinuingthisenginefamily'ssuccessstorywiththenew1.2lTSIengine.Thefurtherd

3、evelopmentoftheenginetechnologyusedinthissmallbutpowerfulenginemodelseriesisbasedonconsistentoutputoptimisationandlightweightdesign.Withitsnewaluminiumcylinderblockandanewlydevelopedcombustionprocess,thisenginecombinesresponsepluslowconsumptionandcostsforVolkswage

4、n'shigh-volumeengines.S443_072Onthefollowingpages,wewillintroduceyoutothedesignandfunctionofthenew1.2l77kWTSIenginewithturbocharger.Furtherinformationonenginemechanicsandenginemanagementcanbefoundinself-studyprogramme405"The1.4l90kWTSIEnginewithTurbocharger".These

5、lf-studyprogrammeportraystheForcurrenttesting,adjustmentandrepairdesignandfunctionofnewinstructions,refertotherelevantserviceliterature.Attentiondevelopments!Thecontentswillnotbeupdated.Note2ContentsIntroduction.....................................................

6、4The1.2l77kWTSIenginewithturbocharger............................4Enginemechanics................................................6Engine...........................................................6Two-piecetimingcase..............................................6Cy

7、linderblock.....................................................7Valvegearandcrankshaftdrive......................................8Cylinderheadwithtwo-valvetechnology.............................10Single-chargingwithturbocharger...................................1

8、4Crankcasebreatherandventilationsystem............................16Oilsystem.......................................................17Coolingsystems....