GAS GENERATOR

摘要

The invention relates to a gas generator comprising a resistant frame capable of maintaining its integrity during the operation thereof, wherein said frame defines a primary chamber (3) containing a primary pyrotechnical compound such as a propellant, a secondary chamber (14) containing a secondary compound such as ammonium nitrate with an additive, and a stabilisation area (22). The frame portion defining the secondary chamber comprises at least one wall (15, 16) that is made lighter using at least one gas-tight solid polymeric material, said polymeric material(s) being used for forming a lighter wall having a mechanical-property decay temperature higher than 120°C and having mechanical characteristics such that the secondary chamber has an inner volume during operation lower than four times said inner volume under rest conditions.