The energy pulse: A new wear criterion and its relevance to wear in gear teeth and automotive engine valve trains

Abstract

Abstract The paper follows an earlier study in which the various standard test procedures for assessing the extreme pressure and anti‐wear properties of lubricants were classified and evaluated in terms of a number of parameters. The significance of the frictional heating energy was apparent and a new parameter, the energy pulse, was proposed. This concept has been further developed in the present paper and applied to an analysis of contact conditions and patterns of wear in gears and valve trains.