期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
期号：ETAT
页码：164
出版社：S&S Publications
摘要：Surface coating on the mating zone of engine valve will be discussed in this paper. Coating of DiamondLike Coating (DLC) on the stem and tappet end part of the engine valve will reduce coefficient of friction and alsowear rate in this area. The DLC is done by physical vapor deposition method in a controlled atmosphere by exposingthe parts to be coated with the deposit. The cost effective way of the surface coating is to be identified forimplementing in production. The DLC have a property of self lubricating by transferring some of the coat to the matingpart this will reduce the coefficient of friction. The same DLC can be applied to other mating parts such as crankshaftand connecting rod piston skirt and oil rings of the engine with operating temperature less than 180°C. This will reducethe frictional horse power and improve the SFC of the engine.
关键词：DLC; Surface coating; Reduce coefficient of friction; Frictional horse power.
