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A cartridge for accelerating a projectile includes a light gas pressurized in a sealed container to 5,000-10,000 psi. Upon ignition in the sealed container, a gas mixture having a low or intermediate molecular weight and a high or low energy density is applied as a high sound speed gas to accelerate

A cartridge for accelerating a projectile includes a light gas pressurized in a sealed container to 5,000-10,000 psi. Upon ignition in the sealed container, a gas mixture having a low or intermediate molecular weight and a high or low energy density is applied as a high sound speed gas to accelerate the projectile to speeds of above about 2.4 km/sec.

대표청구항 ▼

A cartridge comprising a housing carrying a projectile, the housing including: a sealed container structure including: a mixture comprising an oxidizer gas and helium gas at a pressure of at least several hundred atmospheres, a fuel having molecules including hydrogen atoms, a solid propellant, a fr

A cartridge comprising a housing carrying a projectile, the housing including: a sealed container structure including: a mixture comprising an oxidizer gas and helium gas at a pressure of at least several hundred atmospheres, a fuel having molecules including hydrogen atoms, a solid propellant, a front wall structure confining a mass in the sealed container structure from the projectile; the propellant, fuel, oxidizer gas, helium gas, sealed container structure and front wall structure being positioned, arranged and including materials so that in response to ignition within the sealed container structure, the propellant, fuel, helium gas and oxygen from the oxidizer gas are further pressurized and mixed to increase the pressure on the front wall structure to a sufficiently high value to burst the front wall structure so a gas mixture including the fuel, helium gas and oxygen having a pressure substantially higher than the pressure of the mixture in the sealed container structure is applied to the projectile to accelerate the projectile in a barrel in which the projectile is located.