ramjet

ramjet
/ram"jet'/, n.
a jet engine operated by the injection of fuel into a stream of air compressed by the forward speed of the aircraft. Also called ramjet engine.
[1940-45; RAM + JET1]

* * *

Air-breathing jet engine that operates with no major moving parts.

It relies on the craft's forward motion to draw in air and on a specially shaped intake passage to compress the air for combustion. After fuel sprayed into the engine has been ignited, combustion is self-sustaining. As in other jet engines, forward thrust is obtained as a reaction to the rearward rush of hot exhaust gases. Ramjets work best at speeds of Mach 2 (twice the speed of sound) and higher. See also turbojet.

* * *

      air-breathing jet engine that operates with no major moving parts. It relies on the craft's forward motion to draw in air and on a specially shaped intake passage to compress the air for combustion. After fuel sprayed into the engine has been ignited, combustion is self-sustaining. As in other jet engines, forward thrust is obtained as a reaction to the rearward rush of hot exhaust gases.

      Ramjets work best at speeds of Mach 2 (twice the speed of sound) and higher. Since ramjets develop no static thrust, some means for launching them at high velocity is required.

      The first aircraft to fly solely on ramjet power, the Leduc 0.10, was built in France and was launched from another airplane on April 21, 1949. Compare turbojet.

* * *


Universalium. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • ramjet — 1942, from RAM (Cf. ram) (v.) + JET (Cf. jet) (v.) …   Etymology dictionary

  • Ramjet — A ramjet, sometimes referred to as a stovepipe jet, or an athodyd, is a form of jet engine that contains no major moving parts. Unlike most other airbreathing jet engines, ramjets have no rotary compressor at the inlet, instead, the forward… …   Wikipedia

  • Ramjet — Von einem Staustrahltriebwerk angetriebener Flugkörper der NASA. Triebwerkstests in den USA 2002. Ein Staustrahltriebwerk (engl. Ramjet, als Überschallausführung Scramj …   Deutsch Wikipedia

  • ramjet — /ˈræmdʒɛt/ (say ramjet) noun a jet propulsion engine in which the stream of air drawn in for combustion is compressed by the forward speed of the aircraft. {ram1 + jet1} …  

  • ramjet — tiesiasrovis reaktyvinis variklis statusas T sritis Gynyba apibrėžtis Reaktyvinis variklis, neturintis kompresoriaus ir turbinos. Jo veikimas priklauso nuo suslėgto oro, gaunamo varikliui judant į priekį. atitikmenys: angl. ramjet pranc.… …   NATO terminų aiškinamasis žodynas

  • Ramjet (Transformers) — Ramjet is the name of several fictional characters in the various Transformers universes. All have been Decepticon aligned characters who turn into jets. Transformers: Generation 1Transformers character name =Ramjet caption = affiliation… …   Wikipedia

  • Ramjet (Transformers) — Ramjet est un personnage fictif de l univers Transformers. Transformers: Génération 1 Nom: Ramjet Affiliation: Decepticans Protoform: Deceptican Arme: Canon lasers Mode Alternative: Avion de chasse Tué par: Unicron Ramjet est le chef des nouveaux …   Wikipédia en Français

  • Ramjet (disambiguation) — Ramjet may refer to:*Ramjet, the high speed propulsion engine free of moving parts *Ramjet (Transformers), a character in the Transformers toyline *Bussard ramjet, a theoretical form of spacecraft propulsion See also *Roger Ramjet, the animated… …   Wikipedia

  • ramjet (engine) — or ramjet [ram′jet΄] n. a jet engine, without moving parts, in which the air for oxidizing the fuel is continuously compressed by being rammed into the inlet by the high velocity of the aircraft * * * …   Universalium

  • ramjet (engine) — or ramjet [ram′jet΄] n. a jet engine, without moving parts, in which the air for oxidizing the fuel is continuously compressed by being rammed into the inlet by the high velocity of the aircraft …   English World dictionary

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”