Projectile firing device using liquified gas propellant

F - Mech Eng,Light,Heat,Weapons – 41 – B

Patent

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Details

F41B 11/06 (2006.01) B25C 1/00 (2006.01) F41A 21/02 (2006.01) F41B 11/32 (2006.01) F42B 6/00 (2006.01)

Patent

CA 2465696

Rifle (1) comprises barrel (2) and loading means (15) for introducing a projectile from magazine (7) into breech (4). The projectile is propelled by a compressed gas propellant initially stored as a liquid in canister (10). The liquid is heated to a super critical state in chamber (8) by heating element (12) to induce a phase change such that the liquid becomes a highly dense gas. The phase change from liquid to gas provides the energy required to expel the projectile at high velocity from rifle (1), regardless of the ambient temperature. The propellant is preferably CO2 which is heated to 31.06 °°C. Rifle (1) produces minimal noise and no heat signature, making it suitable for military and stealth purposes. A pistol and launchers for grenades or mortar bombs are also disclosed. Another version can launch low earth orbit satellites or payloads.

Selon l'invention, une arme (1) comprend un canon (2) et un moyen de chargement (15) permettant d'introduire un projectile à partir d'un chargeur (7) dans la culasse (4). Le projectile est propulsé par un gaz propulseur comprimé initialement stocké sous forme liquide dans un contenant (10). Le liquide est chauffé jusqu'à un état supercritique dans la chambre (8) par un élément de chauffage (12) pour induire un changement de phase de sorte que le liquide devient un gaz très dense. Le changement de phase de l'état liquide à l'état gazeux fournit l'énergie requise pour expulser le projectile de l'arme (1) à vitesse élevée, indépendamment de la température ambiante. Le propulseur est de préférence du CO2 qui est chauffé à 31,06 DEG C. L'arme (1) produit un bruit minimal et aucune signature thermique, ce qui la rend appropriée à des fins militaires et de camouflage électronique. L'invention concerne également un pistolet et des rampes de lancement de grenades ou d'obus de mortier. Une autre version peut lancer des satellites sur orbite basse ou des charges utiles.

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