Low-Engine-Friction Technology for Advanced Natural Gas Reciprocating Engines. (Annual Technical Progress Report, June 1, 2004-June 30, 2005).

Wong, V. ; Tian, T. ; Moughon, L. ; Takata, R. ; Jocsak, J.

Technical Information Center Oak Ridge Tennessee

关键词: Reciprocating engines;    Natural gas;    Friction;    Engine performance;    Pistons;   

RP-ID  :  DE2006862407

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

This program aims at improving the efficiency of advanced natural-gas reciprocating engines (ANGRE) by reducing piston and piston ring assembly friction without major adverse effects on engine performance, such as increased oil consumption and wear. An iterative process of simulation, experimentation and analysis is being followed towards achieving the goal of demonstrating a complete optimized low-friction engine system. To date, a detailed set of piston and piston-ring dynamic and friction models have been developed and applied that illustrate the fundamental relationships between design parameters and friction losses. Low friction ring designs have already been recommended in a previous phase, with full-scale engine validation partially completed.