Gas generator for side impact protection

摘要

Gas generator for an airbag that provides protection against side impact in a vehicle. The gas generator has a housing with a flange for attaching the gas generator to a part of the vehicle, in particular to the backrest of a vehicle seat, and for fixing the airbag. The gas generator also has a sealed fluid-tight propellant tank that acts as combustion chamber. The propellant tank is arranged concentrically in the housing such that an annular chamber is formed between the housing and the propellant tank to allow afterburning. The annular chamber can be connected on the one hand to the inside of the propellant tank through the passage that opens as a result of the burning process and on the other hand to the inside of the airbag through the outlet apertures provided in the housing wall, but otherwise it is sealed fluid-tight. The construction of the generator is therefore very simple and it is of very small size.