Add-on igniter for pyrogen type igniter
US4391196A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 20, 1981 |
| Grant date | Jul 5, 1983 |
| Priority date | — |
| Expiry date | Apr 20, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02K9/95
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.