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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..................
