This article is about the Japanese experimental jet engine. For the NASA Goddard Space Flight mission, see Anomalous Transport Rocket Experiment.
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The ATREX engine (Air Turbo Ramjet Engine with eXpander cycle) developed in Japan is an experimental precooled jet engine that works as a turbojet at low speeds and a ramjet up to mach 6.0.
ATREX uses liquid hydrogen fuel in a fairly exotic single-fan arrangement. The liquid hydrogen fuel is pumped through a heat exchanger in the air-intake, simultaneously heating the liquid hydrogen and cooling the incoming air. This cooling of the incoming air is critical in achieving a reasonable efficiency. The hydrogen then continues through a second heat exchanger positioned after the combustion section, where the hot exhaust is used to further heat the hydrogen, turning it in a very high pressure gas. This gas is then passed through the tips of the fan providing driving power to the fan at subsonic speeds. After mixing with the air, the hydrogen is burned in the combustion chamber.
The development of this engine lost focus in favor of the new hypersonic precooled turbojet engine (PCTJ).[1]
^Tetsuya Sato; Hideyuki Taguchi; Hiroaki Kobayashi; Takayuki Kojima; Katsuyoshi Fukiba b; Daisaku Masaki; Keiichi Okai; Kazuhisa Fujita; Motoyuki Hongo; Shujiro Sawai (May 2010). "Development study of a precooled turbojet engine". Acta Astronautica. 66 (7–8). Retrieved April 2, 2023.
The ATREX engine (Air Turbo Ramjet Engine with eXpander cycle) developed in Japan is an experimental precooled jet engine that works as a turbojet at...
the tertiary amine DABCO, are safer to handle than TMA itself. The NASA ATREX mission (Anomalous Transport Rocket Experiment) employed the white smoke...
staying there for about one week. Anomalous Transport Rocket Experiment (ATREX) – five consecutive launches, 80 seconds apart on March 27, 2012, studied...
lack of inlet ducts and other air management devices. Pratt & Whitney J58 ATREX SABRE (rocket engine) LACE separates oxygen from the air Air-augmented rocket...
successfully used in 2012 in the Anomalous Transport Rocket Experiment (ATREX) upper atmospheric study. On 26 November 2019, a Terrier Improved Malemute...
lab prototyping stage. Examples include RB545, Reaction Engines SABRE, ATREX. Requires liquid hydrogen fuel which has very low density and requires heavily...
ascent: SABRE – a lightweight hydrogen fuelled turbojet with precooler ATREX – a lightweight hydrogen fuelled turbojet with precooler Liquid air cycle...
Air-Turbo Ramjet (ATR, later ATREX after the addition of an expander cycle) intended to power the first stage of a TSTO spaceplane. ATREX was superseded by the...
The Anomalous Transport Rocket Experiment (ATREX) is a heliophysics experiment that was conducted by NASA's Goddard Space Flight Center out of the Wallops...
uses a precooler, behind which is the ramjet and turbine machinery. The ATREX engine developed in Japan is an experimental implementation of this concept...
launching to orbit, single stage, or very rapid intercontinental travel. Exists only at the lab prototyping stage. Examples include RB545, SABRE, ATREX...
took place at Noshiro. In addition, a successful static test firing of the ATREX, an experimental precooled jet engine that works as a turbojet at low speeds...
Engines SABRE, that might permit single-stage-to-orbit launch vehicles, and ATREX, which could permit jet engines to be used up to hypersonic speeds and high...
"CIBER Mission Launched". NASA. 22 March 2012. Retrieved 3 February 2013. "ATREX Mission: NASA's Five-Rocket Barrage to Study Winds at Edge of Space". Space...
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