This thesis focus on the dynamic simulation on the valve train with Hydraulic Lash Adjuster (HLA) and the study of HLA’s leak-down speciality.
Based on the review of the reference literature ,the calculation formula for the oil force in the hydraulic model of HLA is deduced, the mathematical model for valve train with bucket type HLA was set up and in which the HLA is treated as a hydraulic element. A computer program be developed based on MATLAB language and which be used to calcul...