Lubrication analysis and abrasion prediction of a cam-roller configuration

In this work, a cam-roller follower system is studied with its lubrication condition. First of all, we analyze kinematic parameters of whole diesel engine valve system via numerical equations. The kinematic analysis results include velocity and acceleration. The EHL model provide the parameters for the prediction model such as the minimum film thickness at the specified cam angle, the maximum film pressure, and the minimum film thickness distribution over all the cam angle. The last work in this paper is predicting working life according to the above results. The lubrication condition of the cam-roller follower system under actual working conditions is evaluated, and the actual working life is predicted via numerical solution. The results provide the basal dates for the design process of diesel engine valve cam. What's more the models adopted of this paper can be used to different cam-roller configurations.