Accession Number : ADD008691

Title :   Add-On Igniter for Pyrogen Type Igniter.

Descriptive Note : Patent Application,


Personal Author(s) : Betts, Robert E

Report Date : 20 Apr 1981

Pagination or Media Count : 9

Abstract : Disclosed in an add-on pyrotechnic package to a pyrogen igniter for a solid propellant 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/KNO3), aluminum-potassium perchlorate (Al/KClO4), titanium-aluminum-potassium perchlorate (Ti-Al/KClO4), 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. (Author)

Descriptors :   *Patent applications, *Pyrogen igniters, *Pyrotechnics, *Rocket igniters, *Solid propellant rocket engines, Pellets, Efficiency, Performance(Engineering), Inventions

Subject Categories : Pyrotechnics
      Solid Propellant Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE