Ordnance – Pneumatic
Patent
1995-05-30
1997-07-22
Eldred, J. Woodrow
Ordnance
Pneumatic
F41F 100
Patent
active
056505850
ABSTRACT:
An initiator, for use in a gas generator, includes an enclosed volume in communication with apertures for introducing liquid propellant and pre-pressurization gas into a propellant ignition chamber, and an aperture for introducing combusted gasses into a gas generator. A mechanism for controlling when the gases are allowed to enter the gas generator, and a heater/electrode to initiate combustion of the liquid propellant, also communicate with the enclosed volume. The propellant and the pre-pressurization gas may be introduced together or through separate ports. The heater/electrode thermally decomposes and vaporizes the propellant causing pressurization of the ignition chamber until a critical value is reached and the propellant ignites and burns. The burning propellant increases the chamber pressure beyond a predetermined value thereby opening the controlling mechanism and allowing the combusted gases to be introduced into the gas generator combustion chamber.
REFERENCES:
patent: 3992976 (1976-11-01), Bartels et al.
patent: 4745841 (1988-05-01), Magoon et al.
patent: 4838142 (1989-06-01), Birk
Johnson John Joseph Paul
Mandzy John
Pate Robert Arthur
Schaefer Keith James
Eldred J. Woodrow
Krauss Geoffrey H.
Martin Marietta Corporation
Rees Brian J.
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