INFLATOR WITH LOW MELTING TEMPERATURE GAS GENERANTS

A dual stage inflator (10) is designed to autoignite an autoignition material before a low temperature gas generant melts. Low temperature gas generants include a high nitrogen content organic fuel with ammonium nitrate as the oxidizer. The dual stage inflator has a first gas generant (42) and a sec...

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Bibliographische Detailangaben
Hauptverfasser: KELLEY MICHAEL E, MULVILLE MICHAEL F, TREVILLYAN DENNIS A, FITZGERALD KEVIN, CURTIS ANTHONY J
Format: Patent
Sprache:eng
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Zusammenfassung:A dual stage inflator (10) is designed to autoignite an autoignition material before a low temperature gas generant melts. Low temperature gas generants include a high nitrogen content organic fuel with ammonium nitrate as the oxidizer. The dual stage inflator has a first gas generant (42) and a second gas generant (49) that are ignited by separate igniters. The first gas generant (42) and the second gas generant (49) are insulated from the inflator housing (11) to delay the heat transfer from the housing (11) to the first gas generant (42) and second gas generant (49) during a bonfire test. The dual stage inflator (10) also has an autoignition cartridge for disposing of the second gas generant (49) by the first gas generant (42) after the first gas generant (42) burns for a predetermined amount of time.