5、68F汽油机的性能得到了显著的改善。最后运用DEWE800燃烧分析仪和五气分析仪分别采集示功图和测试排放,验证了上述优化的效果。关键词:空气滤清器化油器168F汽油机进气量动力机械08023080404048赵业淼指导老师:刘胜吉毕业设计说明书TheDesignofIntakeandExhaustSystemandtheMatchingofFuelDeliverySystemfor168FGasolineEngineAbstract:Thispapermainlydiscusses the optimizationoftheintakeandexhaust
6、system andthematchingoffueldelivery system of168F smallgeneralS.I. engine.Wecanimprovethepowerandcontroltheemissionsof168FsmallgeneralS.I. enginebytheoptimizationofintakeandexhaustsystemandthematchingoffueldeliverysystem.Themainfactors of theperformanceofsmallgeneralS.I. engineare
7、excessairratioorair-fuelratio,combustionchamberandthequalityofthemixture,ignitiontimingandignitionenergy,thequalityoftheintakeandexhaust,oilqualityandtheoperatingtemperatureofthegasolineengine.Fromaboveall,excessairratio is one of the mostimportantfactors.Ontheonehand,wecanincreas