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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2023, Vol. 44 ›› Issue (2): 627181-627181.doi: 10.7527/S1000-6893.2022.27181

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Multi-ducted twin-turbines ejector-ramjet/scramjet combined cycle engine for hypersonic civil vehicles

Zeyong YIN1,2(), Yancheng YOU2, Chengxiang ZHU2, Jianfeng ZHU2, Liaoni WU2, Yue HUANG2   

  1. 1.Aero Engine Academy of China,Beijing 101399,China
    2.School of Aerospace Engineering,Xiamen University,Xiamen 361104,China
  • Received:2022-03-21 Revised:2022-04-24 Accepted:2022-06-10 Online:2023-01-25 Published:2022-06-17
  • Contact: Zeyong YIN E-mail:yinzeyong@126.com
  • Supported by:
    National Natural Science Foundation of China(91941103)

Abstract:

The reusable turbine-based combined cycle engine for wide-space/speed range aircraft is a revolutionary technology attracting global attention. Firstly, this paper briefly describes the state-of-the-art of turbine-based combined cycle engines, and then focusing on the technical characteristics and research progress of the presented Multi-ducted Twin-Turbines Ejector-Ramjet/scramjet (MUTTER) combined cycle engine for hypersonic civil aircraft. Different from conventional turbine-based combined cycle engines,MUTTER uses the distinctive symmetrical configuration of four engine ducts. An ejector engine is placed in the ramjet duct to bridge the thrust gap between the twin turbine engines and the ramjet/scramjet engine. A scaled and staged research and verification plan is introduced, and the study on the core sub-systems shows that the inlet and nozzle sub-systems can work stably and efficiently in the wide-space/speed range, and the ejector ramjet engine sub-system can effectively match with other sub-systems. In addition, the aircraft/engine integration features of the present combine cycle engine are discussed. Finally, some conclusions are drawn from our previous work.

Key words: turbine based combined cycle engine, multi-ducts inlet and nozzle, twin-turbines, ejector ramjet, aircraft/engine integration

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