Overpressure regulating airbag inflator

Details Overpressure regulating airbag inflator Overpressure regulating airbag inflator

B - Operations, Transporting

60

R

B60R 21/26 (2006.01)

Patent

CA 2136550

OVERPRESSURE REGULATING AIRBAG INFLATOR ABSTRACT OF THE DISCLOSURE An inflator (10) for an inflatable vehicle occupant restraint system comprises a housing (12) with an arcuate stress concentration groove (20) therein of reduced cross section relative to the remainder of the housing. The groove (20) ruptures upon the occurrence of a predetermined pressure internally of the housing (12), thereby providing a "weal point" in the housing to achieve a predetermined and systematic control of structural failure in the inflator.

Un dispositif (10) pour gonfler un système de protection d'occupant de véhicule comprend un logement (12) avec une rainure courbe (20) de concentration des contraintes ayant une section transversale réduite par rapport au restant du logement. La rainure (20) se rompt lorsqu'une pression interne prédéterminée est atteinte à l'intérieur du logement (12). Cette rainure constitue un "point faible" dans le logement, permettant d'effectuer un ajustement prédéterminé et systématique de la rupture de la structure du dispositif de gonflage.

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