农业机械学报2012，Vol.43Issue(3)：5-9,5.DOI:10.6041/j.issn.1000-1298.2012.03.002
基于特征矢量的汽油机缸内气流运动特性研究
Eigenvector-based Research on In-cylinder Flow Field of Gasoline Engines
摘要
Abstract
A novel double eigen angle-based steady-state flow test rig to comprehensively investigate port generated air flow inside a 4-valve EFI gasoline engine cylinder head was developed. The concept of eigenvector was introduced and the eigenvector path of the in-cylinder tumble flow was protracted; besides, the eigenvector table under different valve lifts in the dummy cylinder was shown to get a macroscopical reflection of the intensity, the tested plane, the vector direction and the distribution of the inclined swirl. In the process of the optimizing the intake system of the engine, a new methodology and comprehensive data basis were provided to organize the optimization the regional and the strength of the appropriate in-cylinder air movement, and improve the performance of the engine.关键词
汽油机/气道稳流测试系统/特征矢量/气流运动Key words
Gasoline engines/Steady-state flow rig/Eigenvector/Air motion分类
能源科技引用本文复制引用
侯圣智,吕永,詹樟松,刘斌,张巍,于勇..基于特征矢量的汽油机缸内气流运动特性研究[J].农业机械学报,2012,43(3):5-9,5.基金项目
国家高技术研究发展计划(863计划)资助项目(2008AA11A114) （863计划）
