关联题篇-注解版

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1、6．关联题Passage1ValvedrivemechanismThevalvedrivemechanismcommandstheinletandexhaustvalvesattherequiredtiming.第3题Thevalvedrivemechanismconsistsofaninletandexhaustcamfollower凸轮随动件(8)eachsuspendedin悬浮在…中aplungerofthetappetassembly挺杆组件(7),twotubularpushrods空心的推杆(4)withballjoi

2、nts,twonodularcastiron球墨铸铁rockerarms摇臂(2)suspendedinarockerarmbearingbracket,twoyokes吊梁(5)andayokeguidepins导销.SeeFig.4-1.Thetappetrollers推杆滚柱followthecamprofilesandtransferthemovementsthroughpushrodstotherockerarms.第4题Therockerarmsoperatetheinletandexhaustvalvesthrough

3、yokes(5).Lubricationfortherockerarmscomesfromtheengine'ssecondaryoilsupplymanifoldthroughdrillingsinthecylinderheadandrockerarmbracket.第2题Thetappetassemblyreceiveslubricatingoilviachannelsintheengineblockfromthemainsupplymanifold.Fortherollerandshaft,theoilissuppliedth

4、roughtheguidingplunger.第4题Tocompensateforheatexpansionaclearancemustexistbetweentherockerarmandyoke.第1题Alladjustmentshavetobedoneonacoldengineonly.1.AccordingtothePassage,thebesttimetoadjustthevalveclearanceis_____.A.beforetheengineisstartedB.whentheengineisrunningC.af

5、tertheenginehasjustbeenstoppedD.whensomethinghasgonewrongwiththeengine注：根据文章来看，调节阀间隙的最好时间是在发动机启动之前。2.Therollerandthetappetassemblyarelubricatedbymeansof_____.92A.themainlubesystemB.thesecondaryoilsystemC.thespecialpumpingsystemD.theturbineoilsystem注：滚轮和挺杆组件借助于主润滑系统润滑。3

6、.AccordingtothePassage,thevalvedrivemechanismdoesnotinclude_____.A.tappetrollersB.pushrodsC.nodularcastironD.yokesandguidepins注：根据文章来看，阀驱动机构不包括球墨铸铁。（包括杆滚轮、顶杆、吊梁和导销）4.Toclosevalvestightly,whichclearanceshouldbeinspectedaccordingtothemaintenanceschedule?A.Theonebetweenth

7、ecamandthetappetroller.B.Theonebetweenthepushrodsandthebanjoints.C.TheonebetweentherockerarmsandtheyokeD.Theonebetweentwotubularpushrods.注：依据保养清单，要紧密的关闭阀件，应检查摇臂和吊梁之间的间隙。AACCPassage2ChargeaircoolerTheengineisequippedwithachargeaircooler.Theinserttypechargeaircoolerismou

8、ntedinaweldedcasing(airtrunk).Thetrunkisboltedtotheengineblock.第1题Standardisatwo-stagecoolermounted.Thefirststage,thr