TEST METHOD TO EVALUATE TRIBOLOGICAL PERFORMANCE OF PISTON RING AND CYLINDER LINER

摘要

Engine power cylinder parts are faced with more severe wear and friction environment. For instance, emission gas recirculation (EGR), one of the most valid technologies related to emission legislation, is known to accelerate wear of piston ring and cylinder liner. Therefore, advanced materials and surface treatments have been developed and adopted successively so that a need exists for an accurate and repeatable wear bench test for various combinations of piston ring and cylinder liner that more closely relates to engine test result. This paper introduces accelerative bench wear test method for piston ring and cylinder liner, and presents the experimental result of friction and wear properties of piston ring surface treatments which are known as substitution for hard chrome plating.