METHOD OF ENHANCING WEAR-RESISTANCE OF CAM AND FOLLOWER SYSTEM IN ENGINE VALVE TRAIN

Wear of the valve train area in low-speed operation becomes critical a s engines become capable of high-speed and high-power performance. Thi s paper describes the development of a design process to secure for th e valve train a constant supply of lubricant film with particular emph asis on maintaining optimum conditions of lubrication in the cam and f ollower system. With this design process, a valve train made of ordina ry materials can be designed to achieve an improved level of scuffing resistance without reduction of maximum load capacity.