Development study of precooled-cycle hypersonic turbojet engine for flight demonstration

Tetsuya Sato*, Hideyuki Taguchi, Hiroaki Kobayashi, Takayuki Kojima, Keiichi Okai, Kazuhisa Fujita, Daisaku Masaki, Motoyuki Hongo, Toyohiko Ohta

*この研究の対応する著者

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This paper describes a development study of a precooled-cycle hypersonic turbojet engine for the first stage of TSTO space plane and hypersonic airplane. With reflecting the key technologies accumulated from ATREX (Expander cycle ATR engine) ground tests, the next flyable subscale engine "S-engine" is now developed. S-engine has 23 cm × 23 cm of rectangular cross section, 2.2 m of the overall length and about 100 kg of the weight employing a variable-geometry rectangular inlet and nozzle. It produces 1.2 kN of thrust at SLS, which corresponds to 1/4 of the ATREX engine. Design of the hypersonic components such as the inlet, precooler and nozzle has been finished and their aerodynamic performances were verified by wind tunnel tests and CFD analyses. A prototype model of the diagonal-flow compressor whose pressure ratio is 6 was manufactured. Its rotating tests under the very-low pressure conditions are now in progress. The reverse-flow annular combustion chamber was successfully tested. The first flight test of the S-engine is to be conducted in 2008 by the Balloon-based Operation Vehicle (BOV) which is about 5 m in length, 0.55 m in diameter and 500 kg in weight. The vehicle is dropped from an altitude of 40 km by a high altitude balloon. After 40-second free-fall, the vehicle pulls up and S-engine operates for 30 seconds at about Mach 2. High altitude tests of the engine components corresponding to the BOVs flight condition have been conducted.

本文言語English
ホスト出版物のタイトルAIAA 57th International Astronautical Congress, IAC 2006
出版社American Institute of Aeronautics and Astronautics Inc.
ページ6336-6343
ページ数8
ISBN(印刷版)9781605600390
DOI
出版ステータスPublished - 2006
外部発表はい
イベントAIAA 57th International Astronautical Congress, IAC 2006 - Valencia, Spain
継続期間: 2006 10月 22006 10月 6

出版物シリーズ

名前AIAA 57th International Astronautical Congress, IAC 2006
9

Conference

ConferenceAIAA 57th International Astronautical Congress, IAC 2006
国/地域Spain
CityValencia
Period06/10/206/10/6

ASJC Scopus subject areas

  • 宇宙惑星科学
  • 航空宇宙工学

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