奥迪全系自学手册（SSP）：337-FSI发动机-E.pdf

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1、ServiceTrainingSelf-studyprogramme337The2.0lFSIenginewithturbochargerDesignandfunctionThenewFSIenginesfromVolkswagendowithoutstratifiedinjectionandplacegreateremphasisonoutputandtorque.Untilnow,FSIdirectinjectionwasalwaysassociatedwithstratification.Ontheturbo

2、chargedengine,theabbreviationFSIremainsbutthereisnostratifiedcharge.DoingwithoutfuelstratificationandNOxsensorsrepresentsalossononepart,butalsopromisesthefinestdrivingenjoymentwithhighoutputandatorqueyengineandgreatpullingpowerandeconomy.Inthisself-studyprogra

3、mmeyoucanfamiliarizeyourselfwiththetechnicalhighlightsofthisengine.Furtherinformationcanbefoundinself-studyprogrammeno.322-The2.0lFSIenginewith4-valvetechnology.S337_002NEWWarningNoteTheself-studyprogrammeshowsthedesignForinstructionsontesting,adjustingandrepa

4、irs,andfunctionofnewdevelopments.pleaserefertotherelevantserviceliterature.Thecontentswillnotbeupdated.2AtaglanceIntroduction......................................4Enginemechanics.................................6Enginemanagement..............................1

5、2Service.........................................24Testyourknowledge..............................263IntroductionDescriptionoftheengineIntermsofbasicdimensionsanddesign,theturboFSIengineisderivedfromthe2.0lFSIwithenginecodeAXW.Inordertomeetthehighexpectationso

6、faturbochargedengine,componentsoftheenginehadtobeadaptedtospecificrequirements.TheexhaustmanifoldandtheturbochargerformExhaustmanifoldSolenoidvalveforchargepressureoneunit.controlTheexhaustandturbomoduleiscustomerN75servicefriendlyandisattachedtothecylinderhea

7、dbyaclampingflange.TurbochargerResonancesilencerTurbochargerairS337_003recirculationvalveN249ThecrankshaftmechanicshavebeenadaptedtothehigherdemandsofaturbochargedFSIengine.PistonConrodCrankshaftS337_0044Inordertomeetthehigherlevelsofpowerandheattransfer,thecy

8、linderheadhasbeenadaptedtothespecificconditions.CylinderheadTheinletcamshaftfeaturescontinuouslyvariablevalvetiming(adjustmentrange42°crankshaftangle).InletportsS337_005Theoptimise