柴油发动机燃油喷射泵的建模和分析 ABSTRACT−TheFuel-InjectionPump(FIP)usedindieselenginehasahigher-paircam-mechanismtopressurizethefuel forinjection.ThispaperproposesamethodologytomodelFIPfromamultibodyDynamics(MBD)perspective.Theresults fromthemodelincludethetemporalbehaviorof