Apparatus for inflating an inflatable vehicle occupant...

B - Operations – Transporting – 60 – R

Patent

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Details

B60R 21/26 (2006.01)

Patent

CA 2148543

An apparatus (10) for use in inflating an inflatable vehicle occupant restraint (12) includes a pressure vessel (14), an actuator assembly (16), and a diffuser (20). The pressure vessel (14) defines a closed storage chamber (18) containing inflation fluid. The actuator assembly (16) opens the storage chamber (18) to release the inflation fluid from the storage chamber (18), and includes a charge of pyrotechnic material (100). The diffuser (20) directs the inflation fluid from the pressure vessel (14) into the vehicle occupant restraint (12) to inflate the vehicle occupant restraint (12). The apparatus (10) further includes a body (160) of combustible material which emits combustion products into the inflation fluid to increase the volume of the inflation fluid at a location outside of the storage chamber (18) by heating the inflation fluid outside of the storage chamber (18). The body (160) of combustible material is located outside of the storage chamber (18) between the storage chamber (18) and the vehicle occupant restraint (12).

Système de gonflage (10) pour dispositif gonflable de retenue des passagers (12), comprenant un récipient sous pression (14), un organe d'enclenchement (16) et un diffuseur (20). Le récipient sous pression (14) constitue un réservoir fermé (18) dans lequel se trouve le fluide de gonflage. L'organe d'enclenchement (16) ouvre le réservoir (18) pour en libérer le fluide de gonflage et comprend une charge de matériau pyrotechnique (100). Le diffuseur (20) dirige le fluide de gonflage du récipient sous pression (14) dans le dispositif de retenue des passagers (12) pour le gonfler. Le dispositif (10) comporte en outre un matériau combustible (160) qui génère des produits de combustion dans le fluide de gonflage pour en accroître le volume en un point situé à l'extérieur du réservoir (18), en le chauffant à l'extérieur du réservoir (18). Le matériau combustible (160) est situé à l'extérieur du réservoir (18) entre le réservoir (18) et le dispositif de retenue des passagers (12).

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