Rocket engine - Wikipedia
A rocket engine is a reaction engine, producing thrust in accordance with Newton's third law by ejecting reaction mass rearward, usually a high-speed jet of high-temperature gas produced by the combustion of rocket propellants stored inside the rocket.
Propulsion System | Glenn Research Center | NASA
2023年11月20日 · Rocket Engine. In a rocket engine, fuel and a source of oxygen, called an oxidizer, are mixed and exploded in a combustion chamber. The combustion produces hot exhaust which is passed through a nozzle to accelerate the flow and produce thrust. For a rocket, the accelerated gas, or working fluid, is the hot exhaust produced during combustion ...
How Rocket Engines Work - HowStuffWorks
2023年6月9日 · Rocket engines harness the energy to get a spaceship off the ground. Learn about solid-fuel rocket engines, liquid-propellant rockets and the future of rocket engines.
Rocket Thrust | Glenn Research Center | NASA
2024年6月24日 · On this page, we show a schematic of a rocket engine. In a rocket engine, stored fuel and stored oxidizer are ignited in a combustion chamber. The combustion produces great amounts of exhaust gas at high temperatures and pressure. The hot exhaust is passed through a nozzle which accelerates the flow.
Rocket | Characteristics, Propulsion, Development, & Facts
2024年12月18日 · Rocket, any of a type of jet-propulsion device carrying either solid or liquid propellants that provide both the fuel and oxidizer required for combustion. The term is commonly applied to any of various vehicles, including firework skyrockets, guided missiles, and launch vehicles used in spaceflight.
Rocket engine - Simple English Wikipedia, the free encyclopedia
A rocket engine is a device that produces a force by pushing gases at high speed out of a nozzle. Rocket engines usually burn chemicals such as petrochemicals and liquid oxygen at very high pressures and temperatures to turn their chemical energy into motion of the rocket.
Rocket Engines – Introduction to Aerospace Flight Vehicles
Rocket engines are used to launch payloads, such as satellites and space probes, into Earth orbit. They are also used to propel spacecraft that are already in space. By imparting a time rate of change of momentum to the gas flow produced by some form of propellant, a force is applied from the rocket engine (s) to the vehicle.
Solid Rocket Engine | Glenn Research Center | NASA
2023年11月20日 · Solid rocket engines are used on air-to-air and air-to-ground missiles, on model rockets, and as boosters for satellite launchers. In a solid rocket, the fuel and oxidizer are mixed together into a solid propellant which is packed into a solid cylinder.
Rocket Principles - NASA
2021年5月13日 · Attaining space flight speeds requires the rocket engine to achieve the greatest action force possible in the shortest time. In other words, the engine must burn a large mass of fuel and push the resulting gas out of the engine as rapidly as possible.
What Is a Rocket? (Grades 5-8) - NASA
2010年9月21日 · A rocket is different from a jet engine. A jet engine requires oxygen from the air to work. A rocket engine carries everything it needs. That is why a rocket engine works in space, where there is no air. There are two main types of rocket engines. Some rockets use liquid fuel. The main engines on the space shuttle orbiter use liquid fuel.