Airbag housing with integrated generator structure

The airbag housing (1) comprises a generator chamber (2) and an air bag chamber (3), where a folded, inflatable air bag is accommodated in the generator chamber of a gas generator and the air bag chamber. The gas generator comprises a generator core with a propellant charge and an ignition unit (9), and a generator shell. Parts of the generator shell are formed by the airbag housing. The generator chamber and the air bag chamber are integrally formed. The generator shell comprises an upper shell and a lower shell. The upper shell or the lower shell is formed in one piece. The airbag housing (1) comprises a generator chamber (2) and an air bag chamber (3), where a folded, inflatable air bag is accommodated in the generator chamber of a gas generator and the air bag chamber. The gas generator comprises a generator core with a propellant charge and an ignition unit (9), and a generator shell. Parts of the generator shell are formed by the airbag housing. The generator chamber and the air bag chamber are integrally formed. The generator shell comprises an upper shell and a lower shell. The upper shell or the lower shell is formed in one piece with the airbag housing. The lower shell is formed as a top flange, where the airbag housing has a receptor flange for receiving the top flange. The top flange is adapted to receive the core of the generator. The gas generator is formed by a diffuser cap (4) connected with the generator chamber, with the air bag chamber and/or with the top flange. A connection between the diffuser cap and the generator chamber, between the diffuser cap and the air bag chamber or between the diffuser cap and the top flange is formed as a snap connection. The diffuser cap is received between the receptor flange of the airbag housing and the top flange by clamping. The ignition unit is arranged in a breakthrough recess of a wall of the generator chamber or a wall of the top flange. The breakthrough recess is formed by overmolding the ignition unit at the primary forming of the bottom shell or of the airbag housing. The upper shell and/or lower shell comprises partially molded or overmolded long fiber or continuous fiber reinforcements or partially molded or overmolded metallic reinforcing elements. A circumferential edge of the air bag is accommodated between the diffuser cap and the airbag housing by clamping. The propellant charge is arranged in a thin-walled container and in the generator shell. The thin-walled container is formed by a cl