1.9L TDI Engine with Pu#FAD

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1、Service.Self-StudyProgramme2091.9-ltr.TDIEnginewithPumpInjectionSystemDesignandFunction1SomethingnewhashappenedtothedieselengineThedemandsonthemoderndieselenginewithThepumpinjectionsystemmeetsthesetoughregardtoperformance,fueleconomy,exhaustrequirements.emissionsandnoiselevelsaregro

2、wingconstantly.EvenRudolfDieselthoughtaboutcombiningtheGoodmixturepreparationisakeyfactorforinjectionpumpandinjectorinoneunitinordertomeetingtheserequirements.dispensewithhigh-pressurelinesandtherebyThiscallsforefficientinjectionsystemswhichachievehighinjectionpressures.However,hedi

3、dproducehighinjectionpressurestoensurethatnothavethetechnicalmeanstoputthisideaintofuelisatomisedveryfinely.Also,itisnecessarytopractice.preciselycontrolthecommencementoffuelinjectionandinjectionquantity.Thisishowitmighthavelooked:In1905,RudolfDieselcameupwiththeideaofapumpinjector.

4、209_03DieselengineswithmechanicallycontrolledAstepintothefuture,thisenginemeetsthetoughpumpinjectionsystemshavebeeninuseinshipsdemandsonperformanceandcleanemissions.andtruckssincethe1950s.Atthisrate,RudolfDiesel'svisionof"smoke-Forthefirsttime,Volkswagen,inassociationwithandodour-fr

5、eeexhaustgasesÒwillonedayRobertBoschAG,hassucceededindevelopingabecomereality.dieselenginewithasolenoidvalvecontrolledpumpinjectionsystemsuitableforuseinpassengercars.NewImportantNoteTheSelf-StudyProgrammePleasealwaysrefertotherelevantServiceLiteratureisnotaWorkshopManual.forallinsp

6、ection,adjustmentandrepairinstructions.TableofcontentsIntroduction..................................................................4SpecificationsPumpinjectionsystem.................................................6GeneralStructuraldesignDrivingmechanismInjectioncycleFuelsupply....

7、...............................................................18DiagramoffuelcircuitFuelpumpDistributorpipeFuelcoolingsystemEnginemanagement...................................................26SystemoverviewSensorsActuatorsGlowplugsystemFunctiondiagramSelf-diagnosisEnginemechanical

8、s..................