Auto ignition package for an air bag inflator

Details Auto ignition package for an air bag inflator Auto ignition package for an air bag inflator

B - Operations, Transporting

60

R

B60R 21/26 (2006.01)

Patent

CA 2160086

An inflator (10) for inflating an air bag (12) includes an outer housing (40). A hermetically sealed canister (90) containing disks (110) of gas generating material is located in the outer housing (40). The canister (90) also contains an annular auto ignition packet (150) containing an auto ignition material (164) having an ignition temperature below the ignition temperature of gas generating material in disks (110). The auto ignition packet (150) extends around a base (138) of an igniter (99). The auto ignition packet (150) is disposed adjacent to a lower end wall (46) of the inflator housing (10) opposite from an end wall across which the folded air bag extends. Consequently, the air bag does not insulate the auto ignition packet (150) from the interior of the vehicle in which the inflator is disposed.

Gonfleur (10) de coussin gonflable (12) comprenant une enveloppe extérieure (40). Une cartouche hermétiquement scellée (90) renfermant des disques (110) de matériau produisant du gaz est placée dans l'enveloppe extérieure (40). La cartouche (90) contient également un ensemble à inflammation spontanée (150) qui renferme une substance à inflammation spontanée (164) dont la température d'allumage est inférieure à la température d'allumage du matériau produisant du gaz dans les disques (110). L'ensemble à inflammation spontanée (150) entoure la base (138) d'un allumeur (99). Il est placé près de la paroi de l'extrémité inférieure (46) de l'enveloppe du gonfleur (10), à l'opposé de la paroi d'extrémité sur laquelle s'étend le coussin gonflable plié. Par conséquent, le coussin gonflable n'isole pas l'ensemble à inflammation spontanée (150) de l'intérieur du véhicule dans lequel le gonfleur est installé.

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