内燃机配气机构技术现状及发展路琼琼.pdf

·· 内燃机配气机构技术现状及发展 路琼琼，李智，雷晶 ( 650224) TK421.3 A (2009) 04 0001 04 The current technology and future development of internal combustion engines’ valve mechanism LU Qiong-qiongLI ZhiLEI Jing Kunming University of Science and Technology , Kunming 650224, China Abstract The valve mechanism controls internal combustion engines’ gas exchange process and its design level influences reliability and performances of the engine. The research status of valve mechanism was introduced both on home and abroad. Through the analysis of valve mechanism’s working principle, bring forward the contradictions when designing it as well as its research methods widely used currently. Elaborate and analyze the advanced technology and prospect the development trend of valve mechanism. Sequentially, provide the judge method on the study of its performan ce and references to the optimization of valve mechanism. Key words valve mechanism dynamics optimization design 1 内燃机配气机构的研究现状