Patent ID: 7992896
Filing Date: 2011-08-09
Classification: B60R

Abstract:
1. A gas generator for a safety system comprising: a first chamber containing an explosible charge formed at least by a primary pyrotechnic compound initiated by at least one initiator provided with a reinforcing charge; a second chamber containing a secondary compound, the decomposition of which is controlled by products of combustion delivered by the primary compound, wherein an interaction of the products of combustion of the primary compound and those of the secondary compound through an oxidation-reduction reaction occur in a slightly confined volume, wherein the first chamber communicates with said second chamber via a central nozzle, said second chamber being provided at a first zone adjacent said first chamber with orifices that discharge the gases and contain, in a second zone, said secondary compound; and means forming an obstacle to a passage for the gases in said second chamber between said first and second zones, said obstacle-forming means allowing the gases to pass into a central part and forming an obstacle to their passage into a peripheral part with sufficient transparency for the gas interaction volume to be slightly confined.