Abrégé

The present application discloses an improved electrically controlled propellant wherein the electrically controlled propellant comprises at least one compound selected from the group comprising organosilanes, siloxanes, and poly(dimethylsiloxane)s.

Classes IPC  ?

• D03D 23/00 - Méthodes générales de tissage qui ne sont pas spéciales à la production d'un tissu particulier ou à l'emploi d'un métier particulierArmures non prévues par un seul autre groupe
• D03D 43/00 - Métiers à boîtes à plusieurs trames
• C06B 45/00 - Compositions ou produits définis par une structure ou des dispositions particulières des composants ou du produit
• C06B 25/34 - Compositions contenant un composé organique nitré le composé étant une amine nitrée acyclique, cyclanique ou hétérocyclique

Abrégé

Apparatus for providing electrically initiated and/or controlled combustion of electrically ignitable propellants is provided. In one example, the apparatus includes a volume of electrically ignitable propellant (liquid and/or gas) capable of self sustaining combustion, and electrodes operable to ignite the propellant. The apparatus may further include a power supply and controller in electrical communication with the electrodes for supplying a potential across the electrodes to initiate combustion of the propellant and/or control the rate of combustion of the propellant. Various configurations and geometries of the propellant, electrodes, and apparatus are possible. In one example, the electrodes are supplied a direct current, which causes combustion of the propellant at the positive electrode. In another example, the electrodes are supplied an alternating current, which initiates combustion of the propellant at both electrodes.

Classes IPC  ?

• F02K 9/95 - Moteurs-fusées, c.-à-d. ensembles fonctionnels portant à la fois le combustible et son oxydantLeur commande caractérisés par des moyens ou des aménagements de démarrage ou d'allumage
• F42C 19/08 - AmorcesDétonateurs
• F23R 7/00 - Chambres de combustion à combustion intermittente ou explosive

Abrégé

A composition capable of producing either solid propellant grains, liquid or gel monopropellants, all of which are electrically ignitable and capable of sustained controllable combustion at ambient pressure. Additional compositions capable of sustained controllable combustion at elevated pressures are described. Applications for the compositions disclosed herein are provided, and include among other applications use in small micro thrusters, large core-burning solid propellant gains, shaped explosives charges for military application, and pumpable liquids and gel monopropellants or explosives for military, commercial mining or gas and oil recovery. In alternative embodiments the above compositions may also incorporate an energetic nitrate polymer, bum rate modifiers, and/or metal fuel(s). The HIPEP formulation makes it possible to ignite and sustain combustion at ambient and vacuum conditions (a) without continuous electrical power and (b) while providing faster bum rates.

Classes IPC  ?

• C06B 47/00 - Compositions dans lesquelles les composants sont conservés séparément jusqu'au moment de l'explosion ou de la combustion, p. ex. explosifs du type "Sprengel"Suspensions d'un composant solide dans une phase liquide normalement non explosive, y compris une phase aqueuse épaissie
• C06D 5/00 - Production de gaz sous pression, p. ex. pour cartouches de mine, cartouches de mise à feu, fusées

Abrégé

Apparatus for providing electrically initiated and/or controlled combustion of electrically ignitable propellants is provided. In one example, the apparatus includes a volume of electrically ignitable propellant (liquid and/or gas) capable of self sustaining combustion, and electrodes operable to ignite the propellant. The apparatus may further include a power supply and controller in electrical communication with the electrodes for supplying a potential across the electrodes to initiate combustion of the propellant and/or control the rate of combustion of the propellant. Various configurations and geometries of the propellant, electrodes, and apparatus are possible. In one example, the electrodes are supplied a direct current, which causes combustion of the propellant at the positive electrode. In another example, the electrodes are supplied an alternating current, which initiates combustion of the propellant at both electrodes.

Classes IPC  ?

• F23N 5/00 - Systèmes de commande de la combustion

Abrégé

A thruster stack assembly and method for manufacturing the same is provided. The thruster stack assembly includes a plurality of grain elements having a common core region (e.g., a channel or passageway), where each grain element comprises a volume of electrically ignitable propellant. The thruster stack assembly further includes electrodes associated with the plurality of grain elements, the electrodes adapted for selectively igniting the plurality of grain elements. In one example, one or more of the grain elements may be ignited and combusted without igniting or damaging adjacent grain elements of the stack. The core region serves to channel combustion gases and exhaust from the thruster stack. Multiple stacks may be assembled together to form three-dimensional thruster arrays.

Classes IPC  ?

• C06B 45/00 - Compositions ou produits définis par une structure ou des dispositions particulières des composants ou du produit