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Walter HWK 109-509 : ウィキペディア英語版 | Walter HWK 109-509
The HWK 109-509 was a German liquid-fuel bipropellant rocket engine that powered the Messerschmitt Me 163 and Bachem Ba 349 aircraft. It was produced by Hellmuth Walter Kommanditgesellschaft (HWK) commencing in 1943. ==Design and development== The HWK 109-509 used a two-component hypergolic fuel/oxidizer combination, controlled by a dual-flow turbopump, to regulate the rate of combustion and thereby the amount of thrust. The turbopump was driven by steam produced by a Walter steam generator which decomposed T-Stoff (which was specified to contain 80% (occasionally 85%) hydrogen peroxide (H2O2), remainder water, with traces (<0.1%) of stabilisers) in the presence of a solid catalyst.〔Botho Stüwe, Peene Münde West, Weltbildverlag ISBN 3-8289-0294-4, 1998 Seite 221+222〕 The engine worked on the principle of the "hot" Walter drive, which used C-Stoff in place of Z-Stoff, the latter tending to clog the jets in the combustion chamber, causing fluctuations in power and potentially explosions. The fuel was known as C-Stoff, a mix of 30% hydrazine hydrate + 57% methanol + 13% water with a small amount of potassium-copper-cyanide. The oxidizer, known as T-Stoff, consisted of a hydrogen peroxide-based formulation, which reacted violently on contact with the C-Stoff fuel, as a hypergolic propellant combination.〔Botho Stüwe, Peene Münde West, Weltbildverlag ISBN 3-8289-0294-4, 1998 page 220, German〕 The violent combustion process resulted in the formation of water, carbon dioxide and nitrogen, and a huge amount of heat sending out a superheated stream of steam, nitrogen and air that was drawn in through the hole in the mantle of the engine, thus providing a forward thrust of approximately 17 kN (3,800 lbf). The engine was an integral design with all components of the drive, with the exception of fuel tanks, locked in a cubical frame — this frame was discarded for the 109-509C dual-chamber design.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Walter HWK 109-509」の詳細全文を読む
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