Add-on igniter for pyrogen type igniter

Details Add-on igniter for pyrogen type igniter Add-on igniter for pyrogen type igniter

1981-04-20

1983-07-05

Jordan, Charles T.

Ammunition and explosives

Igniting devices and systems

Electrical primer or ignitor

60 39823, F02K 995

Patent

active

043911960

ABSTRACT:
Disclosed is an add-on pyrotechnic package to a pyrogen igniter for a solid ropellant rocket motor which employs a perforated solid propellant grain. The pyrotechnic package is comprised of a container fabricated out of a material selected from pressed paper, plastic, or metal and contains pyrotechnic pellets selected from boron-potassium nitrate (B/KNO.sub.3), aluminum-potassium perchlorate (Al/KClO.sub.4), titanium-aluminium-potassium perchlorate (Ti-Al/KClO.sub.4), and large granules of black powder. The combination of the pyrogen igniter and the add-on pyrotechnic package when fired performs the functions of sweeping away any propellant components that have migrated to the propellant surfaces or that have formed on the propellant surfaces from chemical reactions, igniting the propellant perforated grain, and maintaining the pressure in the solid propellant rocket motor chamber to achieve more efficient ignition and performance of the rocket motor.

REFERENCES:
patent: 2561670 (1951-07-01), Miller et al.
patent: 2685837 (1954-08-01), Sage et al.
patent: 2934014 (1960-04-01), Smith et al.
patent: 2935948 (1960-05-01), Porter
patent: 3166899 (1965-01-01), Keathley
patent: 3170287 (1965-02-01), Adelman

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