基于缸内流动CFD分析的发动机活塞设计选型  

Selection of Engine Piston Based on In-cylinder Flow CFD Analysis

作　　者：王晓兰[1] 姚炜[1] 张应兵[1] 

机构地区：[1]安徽江淮汽车股份有限公司技术中心,安徽合肥230022

出　　处：《汽车零部件》2015年第8期54-57,共4页Automobile Parts

摘　　要：活塞是发动机燃烧系统最重要的零部件之一,一款良好匹配的活塞能组织更好的缸内气体流动,从而提升发动机动力性、经济性并降低排放。介绍一起发动机活塞设计选型的实例,在正向设计过程中利用CFD手段分析不同活塞带来的缸内流动变化,并根据流动状态进行活塞的选型匹配。Piston is an important part of engine combustion system. A well suited piston can lead a good in-cylinder air flow, then the power of engine increases, the fuel consumption rate and exhaust emission decrease. An example of selection of engine piston was introduced. CFD technique was used to determine the difference of in-cylinder air flow for several pistons, the best piston was chosen based on CFD results.

关 键 词：缸内流动 CFD分析 活塞选型 

分 类 号：U464[机械工程—车辆工程]