Accession Number : ADD013080

Title :   Pyrogen Igniter.

Descriptive Note : Patent, Filed 30 Mar 84, patented 10 Dec 85,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Smith,James O ; Vetter,Ronald F ; Sieg,George F

Report Date : 10 Dec 1985

Pagination or Media Count : 7

Abstract : A pyrogen igniter for small nozzle applications has a high initial output. High initial output and long duration burning are achieved through utilization of a slow burning igniter main charge in conjunction with a booster pellet. A nozzle plate focuses and directs the output of the igniter as a gas jet while shielding the interior of the igniter as a gas jet while shielding the interior of the igniter from exterior temperature and pressure fluctuations which might otherwise operate to extinguish the igniter. A flush bridgewire/pressed prime igniter configuration and the elimination of loose powder in the igniter facilitates economical production and long shelf-life.

Descriptors :   *PATENTS, *PYROGEN IGNITERS, BOOSTERS(EXPLOSIVES), PELLETS, EXTERNAL, TEMPERATURE, SHELF LIFE, VARIABLE PRESSURE, NOZZLES, ELIMINATION, LONG RANGE(TIME), OUTPUT, BURNING RATE, LOW RATE, JET FLOW, GAS GENERATING SYSTEMS, LONG LIFE, RELIABILITY

Subject Categories : Rockets

Distribution Statement : APPROVED FOR PUBLIC RELEASE