enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. LE-9 - Wikipedia

    en.wikipedia.org/wiki/LE-9

    The LE-9 is a liquid cryogenic rocket engine burning liquid hydrogen and liquid oxygen in an expander bleed cycle. Two or three will be used to power the core stage of the H3 launch vehicle. [1] [2] [5] The newly developed LE-9 engine is the most important factor in achieving cost reduction, improved safety and increased thrust.

  3. YF-79 - Wikipedia

    en.wikipedia.org/wiki/YF-79

    The YF-79 is a liquid cryogenic rocket engine burning liquid hydrogen and liquid oxygen in a closed expander cycle. It is China's fourth generation of upper stage cryogenic propellant engine, after the YF-73, YF-75 and the YF-75D. It can do multiple restarts thanks to an electric spark igniter and a prototype was tested at 60% and 100% (25 ...

  4. Liquid-propellant rocket - Wikipedia

    en.wikipedia.org/wiki/Liquid-propellant_rocket

    Liquid rocket engines have tankage and pipes to store and transfer propellant, an injector system and one or more combustion chambers with associated nozzles.. Typical liquid propellants have densities roughly similar to water, approximately 0.7 to 1.4 g/cm 3 (0.025 to 0.051 lb/cu in).

  5. Comparison of orbital rocket engines - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_orbital...

    Engine Origin Designer Vehicle Status Use Propellant Power cycle Specific impulse (s) [a] Thrust (N) [a] Chamber pressure (bar) Mass (kg) Thrust: weight ratio [b] Oxidiser: fuel ratio AJ-10-190 USA: Aerojet: Space Shuttle, Orion, Apollo CSM: Active Upper N 2 O 4 /MMH: Pressure-fed: 316 [1] 26,689 [1] 8.62 [1] 118 [1] 23.08: Archimedes New ...

  6. BE-3 - Wikipedia

    en.wikipedia.org/wiki/BE-3

    The BE-3 (Blue Engine 3) is a liquid hydrogen/liquid oxygen rocket engine developed by Blue Origin. The engine began development in the early 2010s and completed acceptance testing in early 2015. The engine is being used on the New Shepard suborbital rocket, for which made its first test flight on 29 April 2015 and had its first crewed flight ...

  7. LE-5 - Wikipedia

    en.wikipedia.org/wiki/LE-5

    The upgraded engine, named LE-5B-2, was first flown on a H-IIB on September 10, 2009. The main fixes were adding flow-laminarizing plates in the expander manifold, a new mixer of gaseous and liquid hydrogen in the hydrogen feed line, and a new injector plate with 306 smaller coaxial injectors (versus 180 in LE-5B). [6]

  8. Vinci (rocket engine) - Wikipedia

    en.wikipedia.org/wiki/Vinci_(rocket_engine)

    The Vinci rocket engine is a 180-kilonewton (40,000 lb f) restartable, upper stage cryogenic engine using the expander cycle and fed with liquid hydrogen and liquid oxygen. Its biggest improvement over the HM7B engine used on the Ariane 5 is the capability of restarting four times. [ 2 ]

  9. Liquid rocket propellant - Wikipedia

    en.wikipedia.org/wiki/Liquid_rocket_propellant

    The major manufacturer of German rocket engines for military use, the HWK firm, [8] manufactured the RLM-numbered 109-500-designation series of rocket engine systems, and either used hydrogen peroxide as a monopropellant for Starthilfe rocket-propulsive assisted takeoff needs; [9] or as a form of thrust for MCLOS-guided air-sea glide bombs; [10 ...