一种四冲程发动机活塞漏气量限值计算方法的研究  

Study on the Calculation Method of Piston Leakage Limitation for Four-stroke Gasoline Engine

作　　者：王琪 方天文 夏志鹏 贺锋 王文琦 WANG Qi;FANG Tianwen;XIA Zhipeng;HE Feng;WANG Wenqi(Ningbo Geely Royal Engine Components Co.,Ltd.,Ningbo,Zhejiang,315336,China)

机构地区：[1]宁波吉利罗佑发动机零部件有限公司,浙江宁波315336

出　　处：《小型内燃机与车辆技术》2023年第3期21-23,共3页Small Internal Combustion Engine and Vehicle Technique

摘　　要：通过不同排量的汽油发动机数据样本,分析四冲程发动机活塞漏气量限值国标算法的局限性,同时根据漏气量产生的主要影响因素,制定适用性更广的四冲程发动机活塞漏气量限值计算方法,并通过实测数据进行新算法验证。The limitation of national standard calculation for piston leakage of four-stroke engine has been analyzed,based on the data of gasoline engines with different displacements.At the same time,according to the main influencing factors of leakage,a more applicable four-stroke engine calculation method of piston leakage limitation is developed.The new calculation method is verified by measured data.

关 键 词：活塞漏气量 奥托循环 米勒循环 滚流比 流量系数 充气系数 

分 类 号：TK413.33[动力工程及工程热物理—动力机械及工程]