中汽南方-路虎发动机介绍

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1、RangeRoverSport动力总成V8自然吸气/机械增压发动机学员手册第8部分第5–71页由中汽南方蒋凤石翻译PowertrainV8EnginesN/AandS/CWorkbooksection8Pages5–71目的(动力传递部分)注意：本课程与另外一门课程（Denso发动机管理系统）共同组成发动机部分的完整介绍。描述4.4NA和4.2SC发动机的结构特性介绍各种发动机技术参数按照路虎公司政策进行发动机维修正确使用专用工具Objectives(Powertrain)Note:thiscou

2、rseisdesignedtorunalongsidetheDensoEnginemanagementtrainingprogrammeDescribetheFeaturesofthenaturallyaspirated4.4litreandthe4.2litresuperchargedengineDescribethetechnicalspecificationforallenginesCarryoutenginerepairsinlinewithLandRover’sPolicyUsespec

3、ialtoolscorrectly.概述Page9GeneralPage9V8汽油机90°V型铝制缸体铝制汽缸盖–每缸4气门无垫片，挺杆直接作用可变气门正时(VVT)–机械增压版上未安装初级、次级链式驱动铝制缸床(阶梯型结构)碎裂式连杆两根V型驱动皮带电控EGR(机械增压版未装)引入机械增压在Bridgend的发动机厂组装Page9V8PetrolEngine90°VeeAluminiumcylinderblockAluminiumcylinderheads-Fourvalvespercylind

4、erShim-less,tappetbucketsVariablevalvetiming(VVT)–notonsuperchargerPrimaryandsecondarychaindrivesAluminiumbedplate(ladderframe)FracturesplitconnectingrodsTwinmulti-veedrivebeltsElectronicEGR(noEGRonsupercharger)SuperchargerintroducedBuiltattheBridgend

5、engineplant.Page9BaseEngineAJ-41V8NA发动机是AJ-33V8NA的改良版新型AJ-41/43V8发动机将投放所有市场变更要点：深式油底壳修正FEAD(发动机驱动风扇)排放标准达到欧4US–LEVII修正EGR15,000英里机油保养(欧洲),7,500英里换机油(美国)无回油管路系统修正冷却水出口控制(throttletodifferentsideofvehicle)无垫片BaseEngineAJ-41V8NAEngineismodifiedversionofAJ

6、-33V8NAThenewAJ-41/43V8willbelaunchedintoallmarkets.KeyV8enginechangesovertheJaguarversion:-DeepSumpRevisedFEAD(enginedrivenfan)TailpipeemissionsEurope&ROW–Stage4US–LEVIIRevisedExhaustGasRecirculation(EGR)15,000MileOilService(Europe),7,500milesoilchan

7、geinUSAReturnlessFuelSystemRevisedwateroutlet(throttletodifferentsideofvehicle)Shim-lesstappets.AJ41V8NA发动机线束加油管高度增加改进的缸盖改良水套排气歧管缸床深式油底壳初级FEAD皮带具有滤清的油冷却器次级发动机前发动机辅助驱动皮带（FEAD）改进的节温器支架以适应节气门节气门体发动机罩盖安装支架AJ41V8NAEngineHarnessOilFilltube,HeightincreasedMo

8、difiedCylinderHead,improvedportsandwaterjacketFabricatedLogExhaustManifoldsStructuralbedplateDeepsumpPrimaryFEADdriveOilCoolerwithfilterheadSecondFEADdriveModifiedThermostathousingtosuitthrottleelbowThrottleBodyandelbowEnginecovermountingbrack