FAI缸內(nèi)直噴二沖程摩托車發(fā)動機(jī)的研究.pdf

1、天津大學(xué)碩士學(xué)位論文FAI缸內(nèi)直噴二沖程摩托車發(fā)動機(jī)的研究姓名：尤兵申請學(xué)位級別：碩士專業(yè)：動力機(jī)械及工程指導(dǎo)教師：楊延相20030101縶要一III一IIIIII!!!女!!曼AbstractConventionalcrankcasescavengingtwo—strokeengineshaveinherentdrawbacksinexchanging，whichleadtoMeshortcircuitingoffuelairmixt

2、ureandincompletecombustion鮭partIoad；Thiscausesrichunburnedhydrocarbon(HClemissionsinexhaustandpoorfilelconsumptionHowevertwo—strokeengineshavethemeritsoflowcostandhighpowerdensity，Separatingthescavengeprocessfromthefuels

3、upplysystemcanminimizeoreliminateshort”circuitingwhichreducestirolconsumptionandemissionsSotwo—strokeengines’fueleconomyandexhaustemissionsareimprovedbyusingincylinderfuel酶ection，tnthispaperadirectfimtinjectionsystem、_：v

4、asdevelopedwiththeelectricfuelpump：FAtinjectorandthenecessaryECUhardwareandsoftwaretnthisexperimentasystemfortwostrokeGDIengineisstudied，whichresultingoodemissionsandfuelconsumptionThisworkwasfocusedinttHeephasesFirst，th

5、isstudyselectAX100typemotorenginewithdisplacementof100ccasthebaseengine，anditwasmodifiedsoas稔satisfytheneedofelectroniccontrol，Secondwemustmatchasuited氐#linjectionsystemandcontrolstrategylbrthebaseengineThird，theenginebe

6、nchtestwasconducted：andtheperformance，emissionsandcontrolparameterwasrecordedByanalyzingthesedatatheelectriccontrolledMAPisacquiredTheresultofexperimentindicateswhen釃ectionpEIsewidthandinjectiontimingandignitiontimingare

7、suitablethegasolinedirectinjectiontwo‘strokeengine’semissionandfuelconsumptioncarlbeclosetofourstrokeengineAttoadof50％and100％，thecomparisonofDIengineandconventionalengineshowsalittlereductioninpowerattowspeed，butincrease