Patent ID: 8967664
Filing Date: 2015-03-03
Classification: B60R,C06D

Abstract:
1. A gas generator for an airbag comprising: at least one pressurized gas chamber; a first actuator for opening the at least one gas pressurized gas chamber; a diffusion chamber including a communication surface arranged for diffusing gases from the at least one pressurized gas chamber towards the airbag; and an obturator located outside the diffusion chamber and including a second actuator, the obturator arranged so as to be locked in a first position in which the obturator and the communication surface cooperate to define a first diffusion surface area; wherein the second actuator is arranged for unlocking the obturator in order to allow the obturator to go into a second position in which the obturator and the communication surface cooperate to define a second diffusion surface area greater than the first diffusion surface area; wherein the obturator includes a deflector partly covering the communication surface when the obturator is in the first position, and moving away from the communication surface when the obturator passes into the second position by deforming.