Spacecraft rocket engine cooled with fluid, not propellant

摘要

The spacecraft's rocket engine is cooled with a recirculating cooling system that includes a coolant fluid of non-propellant, such as water and / or ethylene glycol. The spacecraft's rocket engine, with its recirculating cooling system to keep the rocket engine's combustion chamber at a low temperature, can be costly to build and operate with higher safety even by using more common metals in construction. can do. The cooling system also provides an easy means for warming and / or vaporizing the propellant.