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Review Article | Open Access

Technologies and studies of gas exchange in two-stroke aircraft piston engine: A review

Yu ZHOUa,b, Xueyu LIb,c, Shuiting DINGa,d, Shuai ZHAOa,b, Kun ZHUe, Longtao SHAOb,f, Farong DUa,b, Gerui WANGa,b, Zheng XUg,( )
Research Institute of Aero-Engine, Beihang University, Beijing 100191, China
Aircraft/Engine Integrated System Safety Beijing Key Laboratory, Beijing 100191, China
School of Transportation Science and Engineering, Beihang University, Beijing 100191, China
Civil Aviation University of China, Tianjin 300300, China
Aero Engine Academy of China, Beijing 101304, China
School of Energy and Power Engineering, Beihang University, Beijing 100191, China
Beihang Hangzhou Innovation Institute Yuhang, Hangzhou 310052, China

Peer review under responsibility of Editorial Committee of CJA.

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Abstract

The in-cylinder gas exchange process is crucial to the power performance of two-stroke aircraft piston engines, which is easily influenced by complex factors such as high-altitude performance variation and in-cylinder flow characteristics. This paper reviews the development history and characteristics of gas exchange types, as well as the current state of theory and the validation methods of gas exchange technology, while also discusses the trends of cutting-edge technologies in the field. This paper provides a theoretical foundation for the optimization and engineering design of gas exchange systems and, more importantly, points out that the innovation of gas exchange types, the modification of theoretical models, and the technology of variable airflow organization are the key future research directions in this field.

Keywords

Aircraft piston engineAircraft power systemsGas exchangeHigh-altitude performanceIn-cylinder flowTwo-strokeUnmanned Aerial Vehicles (UAVs)

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Chinese Journal of Aeronautics
Volume 37 Issue 1,
January 2024
Pages 24-50
DOI: 10.1016/j.cja.2022.08.012
Cite this article:
ZHOU Y, LI X, DING S, et al. Technologies and studies of gas exchange in two-stroke aircraft piston engine: A review. Chinese Journal of Aeronautics, 2024, 37(1): 24-50. https://doi.org/10.1016/j.cja.2022.08.012

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Received: 20 April 2022
Revised: 11 May 2022
Accepted: 20 June 2022
Published: 20 August 2022
© 2022 Chinese Society of Aeronautics and Astronautics.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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