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Liquid Rocket Engines

Kurzbeschreibung

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Liquid Rocket Engines (LRE) are the most common rocket engines in usage. They work usually with a combination of fuel and oxidator. Those are injected in the burning chamber to burn creating hot gases, those are then accelerated via laval nozzle to hypersonic speed and then expanded at the final part of the nozzle.

Beschreibung

Liquid Rocket Engines (LRE) work usually with a combination of fuel and oxidator. Those are injected in the burning chamber to burn creating hot gases, those are then accelerated via laval nozzle to hypersonic speed and then expanded at the final part of the nozzle.

They can be classified in :

Types or amount of fuels used:

One material systems (Monergole)

Two material systems (Diergole)

Three material systems (Triergole)

Self igniting systems (Hypergole)

Energetic levels:

Low energetic (Isp < 280s) , usually all Monergole systems.

Medium energetic (280s < Isp < 330s), LOx/ Querosin, N2O4/N2H4

High energetic (Isp > 330s), LOx/LH2

 

Bilder

Scheme from a LRE

Von Braun and the 5 F1 LRE mounted at the Saturn V Rocket

NASA

NASA

Video