二冲程航空活塞发动机换气过程试验技术综述  

Experimental Techniques of Gas Exchange in Two-stroke Aviation Piston Engine:A Review

作　　者：韩小溪 闫欢松 李雪宇 钟之鸣 周煜[5] HAN Xiaoxi;YAN Huansong;LI Xueyu;ZHONG Zhiming;ZHOU Yu(Marine Equipment Project Management Center,Beijing,100071,China;China Aviation Industry Jincheng Nanjing Electrical and Hydraulic Engineering Research Center;School of Transportation Science and Engineering,Beihang University;AVIC Chengdu Aircraft Design&Research lnstitute;Research Institute of Aero-Engine,Beihang University)

机构地区：[1]海军装备部装备项目管理中心,北京100071 [2]中国航空工业集团公司金城南京机电液压工程研究中心 [3]北京航空航天大学交通科学与工程学院 [4]中国航空工业集团公司成都飞机设计研究所 [5]北京航空航天大学航空发动机研究院

出　　处：《小型内燃机与车辆技术》2024年第6期93-96,共4页Small Internal Combustion Engine and Vehicle Technique

摘　　要：二冲程航空活塞发动机的换气过程是决定动力性能的关键因素之一,换气的整体过程发生在缸内且流动特征复杂,通过试验技术探究换气性能颇具难度与挑战,是航空动力技术的研究热点。总结了二冲程航空活塞发动机换气过程的试验技术发展现状,包括缸内气流可视化试验法、气体成分分析法和示踪气体法,指出高空换气性能试验技术是未来的发展方向。The gas exchange process of two-stroke aviation piston engines is one of the crucial factors determining their power performance.The overall gas exchange process takes place within the cylinder,and its flow characteristics are complex.Investigating the gas exchange performance through experimental techniques poses significant challenges and difficulties,making it a research hotspot in the field of aviation power technology.This article summarizes the current state of experimental techniques for investigating the gas exchange process in two-stroke aviation piston engines,including in-cylinder flow visualization methods,gas component analysis methods,and tracer gas methods,and highlights that high-altitude gas exchange performance testing techniques are the future direction for development.

关 键 词：航空活塞发动机 二冲程 换气过程 换气试验技术 

分 类 号：U464.171[机械工程—车辆工程]