B - Operations – Transporting – 60 – R
Patent
B - Operations, Transporting
60
R
B60R 21/26 (2006.01)
Patent
CA 2134532
An inflator assembly (10) for inflating an inflatable vehicle occupant restraint (12) includes a pressure vessel (14) with a storage chamber (18) containing a combustible mixture of gases. An ignitable material (122), when burning, increases the pressure of the mixture of gases by igniting the mixture of gases. The mixture of gases is released to exit the storage chamber (18) at a first flow rate and subsequently at a second, greater flow rate. A first gas outlet opening (172) is provided in the pressure vessel (14) when the inflator assembly (10) is actuated, and a second gas outlet opening (186) is subsequently provided in the pressure vessel (14) at a predetermined time. A diffuser (176) directs gas from the gas outlet openings (172) and (186) into the inflatable vehicle occupant restraint (12).
Le dispositif de gonflage (10) permettant de gonfler un coussin gonflable (12) pour passager d'un véhicule inclut un contenant sous pression (14) muni d'un réservoir renfermant un mélange de gaz combustibles. Une substance inflammable (122), en brûlant, augmente la pression du mélange de gaz en enflammant ce mélange. Le mélange de gaz est libéré et sort du réservoir (18) à un premier débit et, par la suite, à un deuxième débit plus grand. Un premier orifice de sortie des gaz (172) se trouve dans le contenant sous pression (14) lorsque le dispositif de gonflage est activé, et un deuxième orifice de sortie des gaz (186) est disponible subséquemment dans le contenant sous pression (14) à un moment préétabli. Un diffuseur (176) dirige l'écoulement des gaz à partir des orifices de sortie des gaz (172) et (186) dans le coussin gonflable pour passager d'un véhicule.
Blumenthal Jack L.
Staudhammer Peter
Fetherstonhaugh & Co.
Trw Vehicle Safety Systems Inc.
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