Liquid-propellant rocket - Wikipedia
Bipropellant liquid rockets use a liquid fuel such as liquid hydrogen or RP-1, and a liquid oxidizer such as liquid oxygen. The engine may be a cryogenic rocket engine, where the fuel and oxidizer, such as hydrogen and oxygen, are gases which have been liquefied at very low temperatures.
Liquid Rocket Engine - NASA
2021年5月13日 · Liquid rocket engines are used on the Space Shuttle to place humans in orbit, on many un-manned missiles to place satellites in orbit, and on several high speed research aircraft following World War II. In a liquid rocket, stored fuel and stored oxidizer are pumped into a combustion chamber where they are mixed and burned.
Rocket - Liquid Fuel, Propulsion, Engines | Britannica
2024年11月28日 · Rocket - Liquid Fuel, Propulsion, Engines: Liquid-propellant systems carry the propellant in tanks external to the combustion chamber. Most of these engines use a liquid oxidizer and a liquid fuel, which are transferred from their respective tanks by pumps.
Liquid rocket engines are either mono-propellant or bi-propellant. Mono-propellant engines either use a straight gaseous system or employ a catalyst to decompose the propellant in an exothermic reaction.
Propulsion System | Glenn Research Center | NASA
2023年11月20日 · There are two main categories of rocket engines: liquid rockets and solid rockets. In a liquid rocket, the propellants, the fuel and the oxidizer, are stored separately as liquids and are pumped into the combustion chamber of the nozzle where burning occurs. In a solid rocket, the propellants are mixed together and packed into a solid cylinder.
Chemical Propulsion Systems | Glenn Research Center | NASA
2023年4月17日 · Liquid propulsion systems are typically either a monopropellant (a single propellant fluid) or a bi-propellant (two fluids, a fuel and an oxidizer). The propellants may be stored and fed from high-pressure fuel tanks (pressure-fed) or use turbopumps to move the propellant to the engine (pump-fed).
Pump Fed Liquid Rocket Cycle Types – Staged combustion cycle is more efficient than the gas generator cycle (older systems such as F1 use the gas generation cycle). – Fuel rich pre burners are easier to develop but not as desirable as the oxidizer rich burners • …
ESA - Solid and liquid fuel rockets - European Space Agency
A modern solid fuel rocket has a specific impulse of up to approximately 2500 N s kg-1 whilst a good liquid fuel rocket can produce up to 4500 N s kg-1. It is common practice to take a shortcut in the units, at ground level one kg of propellant weighs a little under 10 N and these two figures are cancelled out.
Liquid Rocket Engine | Glenn Research Center | NASA
2023年11月20日 · Liquid rocket engines are used on the Space Shuttle to place humans in orbit, on many un-manned missiles to place satellites in orbit, and on several high-speed research aircraft following World War II. In a liquid rocket, stored fuel and stored oxidizer are pumped into a combustion chamber where they are mixed and burned.
"Liquid Rocket Propulsion" - Purdue University
Liquid rocket engines, or LREs, are one of the more popular rocket propulsion systems in use today. Most current engines utilize a bipropellant configurationin which fuel and oxidizer are stored in separate tanks.