Gas generator for a safety arrangement

A gas generator for a safety arrangement, comprising:

• a combustion chamber delimited by a combustion chamber wall and at least one combustion chamber cover, one of said combustion chamber wall and said combustion chamber cover having openings for directing flow of gas;
• propellant granule filled into the combustion chamber to a pre-selected filling level in a range of filling levels, and
• a means arranged in the combustion chamber for holding down the propellant granule in said entire range of filling levels;
• wherein the means for holding down the propellant granule comprises a disc-shaped holding face, the holding face being pressed into the combustion chamber and connected in a form- and force-fitting manner with the combustion chamber wall, and being pre-stressed for pressing elastically onto the propellant granule, thereby arresting the propellant granule at the pre-selected filling level in said entire range of filling levels and at a variable distance from the combustion chamber cover which variable distance depends upon said pre-selected filling level in said range of filling levels;
• wherein the holding face has grid holes having a diameter smaller than the propellant granule, and
• wherein the holding face is entirely spaced apart from the combustion chamber cover defining an empty space.