Abstract: A gas generator, which can be used to inflate an airbag, that has a perforated outer housing wall, a fuel chamber, an expansion chamber which adjoins the fuel chamber and is connected to the fuel chamber via openings, includes a surrounding filter resting against the outer housing wall. A filter tube holds and supports the filter. To provide a secure and uniform sealing of the edge of the filter along the entire circumference of the outer housing wall, a ring-shaped clamping device is provided between the filter tube and the edge of the filter. The clamping device presses the edge of the filter against the outer housing wall.

Abstract: A gas generator for an air bag has a combustion chamber (6), which is surrounded by an annular filter chamber (11), wherein the annular filter (14) of the filter chamber (11) has an exposed annular surface extending on its outside over its entire circumference for discharging the propellant gases into the air bag (24).

Abstract: A filter arrangement for an airbag gas generator of the type utilizing gas-producing propellant charge to generate gas to inflate an airbag, and having a filter chamber exhibiting contoured interior surfaces. A gas permeable filter material with a large effective filter surface is disposed in the filter chamber in such a manner as to substantially completely fill up the filter chamber and to contact substantially all of its contoured interior surfaces. The filter material comprises a circular knitted wire knit, rolled up and pressed into a shape corresponding to the shape of the filter chamber.

Abstract: The invention relates to a temperature-dependent control of the gas press supplied by the gas generator.