Pressurization and control devices using high vapor pressure liquids
AssigneePrimex Technologies, Inc.
InventorDonald A. Pahl
Life of this patent
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Abstract
There is provided a system for expelling a liquid fuel component from a tank to a rocket engine utilizing a pressurized gas to displace the propellant. A pressurized high vapor pressure liquid is combined with the pressurized gas reducing the volume of pressurizing agent required to expel a desired volume of the liquid fuel component. Since the volume of pressurizing gas is less, the weight of the propelled craft may be reduced or additional fuel carried. In another embodiment of the invention, the vapor phase of the high vapor pressure liquid is used as a reference pressure to control other systems.
Claims10
A system for delivering a liquid fuel component to a rocket engine, comprising:
- an expulsion tank containing a mixture of pressurized first liquid and a pressurized first gas at an equilibrium pressure;
- a primer tank containing a decomposable liquid;
- a gas generator capable of decomposing said decomposable liquid to reaction exhaust gas;
- a liquid fuel component tank containing a liquid fuel component;
- a first conduit for controllably delivering said pressurized first gas to said primer tank thereby displacing at least a portion of said decomposable liquid;
- a second conduit for delivering said decomposable liquid to a gas generator;
- a third conduit for delivering said reaction exhaust gas to said liquid fuel component tank thereby displacing at least a portion of said liquid fuel component;
- and
- a fourth conduit for delivering said liquid fuel component to a combustion chamber of said rocket engine.
Dependencies are inferred from the claim text.