Patent ID: 8708367

Claim:
A gas generator for a safety device for a motor vehicle, the gas generator comprising: at least a first chamber and a second chamber, the first chamber isolated from the outside, the second chamber in communication with the first chamber; an energetic charge disposed in the first chamber, the energetic charge being a mixture of at least one oxidizing charge and one reducing charge for which an oxygen balance of reaction products is equilibrated; and a heat-generating device for generating sufficient heat for triggering and sustaining combustion of the energetic charge without any chemical interaction between the heat generating device and the energetic charge; wherein the second chamber receives gases generated by reaction of the energetic charge within the first chamber and the gases are discharged via at least one discharge aperture of the second chamber that is in communication with the outside; and wherein the energetic charge is formed of an assembly of distinct unit charges, the unit charges being each separated by a destructible screen which provides low resistance to heat and retards combustion to decrease combustion speed.