Air bag inflator

The air bag inflator employs an injection piston assembly in which liquid propellant is delivered through nozzles in the injection piston to the combustion chamber. Metering of the liquid propellant is accomplished in a manner that is not sensitive to changes in ambient temperatures. A plug is slada...

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Bibliographic Details
Main Authors Parizat, Amnon, Tarczynski, Marek
Format Patent
LanguageEnglish
Published 18.03.2004
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Summary:The air bag inflator employs an injection piston assembly in which liquid propellant is delivered through nozzles in the injection piston to the combustion chamber. Metering of the liquid propellant is accomplished in a manner that is not sensitive to changes in ambient temperatures. A plug is sladably mounted between the propellant chamber and the nozzles to prevent flashback at startup. The plug is pushed forwardly to expose the nozzles to the propellant chamber in response to a predetermined pressure in the propellant chamber. A plug may also be fitted into each nozzle to be expelled into the combustion chamber upon opening of the nozzle. A tape may also be provided over the outlet of the nozzle to prevent flashback into the propellant chamber.