Gas generating apparatus for air bag apparatus

B - Operations – Transporting – 60 – R

Patent

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Details

B60R 21/26 (2006.01)

Patent

CA 2216917

A gas generating apparatus for an air bag apparatus mounted in a vehicle or the like for introducing a gas into an air bag to inflate the same for protecting a passenger in the vehicle. The gas generating apparatus for the air bag ignites and burns a combustible fluid to increase its temperature to increase its pressure for inflating an air bag. The gas generating apparatus for the air bag apparatus includes an accommodating device for accommodating a combustible fluid, a vent opening provided in one of the accommodating device, and an occluding member having an igniting portion directed inward of the accommodating device. A pressure in the accommodating device is increased by burning the combustible fluid to reliably break the occluding member so that a combustion fluid mixture can effectively and swiftly be supplied to the air bag.

L'invention concerne un dispositif produisant un gaz pour un air-bag monté dans un véhicule ou similaire, pour injecter un gaz dans l'air-bag afin de protéger le conducteur ou les passagers en cas de collision. Le dispositif pour produire un gaz pour un air-bag allume un fluide inflammable afin que ses produits de combustion gonflent l'air-bag (3) par l'augmentation de la pression du fluide due à l'augmentation de la température provoquée par la combustion. Ce dispositif comprend un réservoir (5), (9) pour recevoir un fluide inflammable (7), un évent (8) prévu sur le réservoir, un obturateur (13) pour fermer l'évent, et une unité d'allumage (14) coopérant avec le réservoir. La combustion augmente la pression dans le réservoir jusqu'à rompre l'obturateur pour permettre au mélange de fluide en cours de combustion de se répandre rapidement et efficacement dans l'air-bag.

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