PRESSURIZATION DEVICE FOR A LIQUID-OXYGEN TANK OF A ROCKET ENGINE
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Feb 9, 2016
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Feb 12, 2015
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Abstract
After filling a tank (18) with liquid oxygen (20) that is to be used to feed a rocket engine (10) with oxidizer, but prior to causing the engine (10) to operate, the tank is pressurized by injecting gaseous nitrogen (N) into the tank. While the engine (10) is in operation, liquid oxygen (20) is taken off, the taken-off oxygen is heated so as to obtain gaseous oxygen, and the gaseous oxygen is injected into the gas blanket (42) of the tank, with the pre-pressurization nitrogen forming a nitrogen buffer (40) between the liquid oxygen present in the gaseous oxygen tank injected into the gas blanket.
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