Trw Airbag Systems Gmbh & Co. Kg

Ingrid Hofbauer

Karl-Heinz Sommer

Karl Unterforsthuber

Georg Sch&ouml;nhuber

Marc Winterhalder

Markus Leifheit

A gas generator for a vehicle occupant restraint system has a combustion chamber delimited by a combustion chamber wall and filled with propellant granules. A structure is arranged in the combustion chamber for holding down the propellant granule, which has a disc-shaped holding face with grid holes, wherein the holding face is pressed into the combustion chamber and is connected in a form- and force-fitting manner with the combustion chamber wall. The structure for holding down the propellant granules is prestressed and presses elastically onto the propellant granules thereby arresting the propellant granules at a preselected filling level and at a variable distance from the combustion chamber cover.

Gas generator for a safety arrangement

The invention relates to a gas generator for a safety arrangement, in particular for a vehicle occupant restraint system, comprising a combustion chamber (,) delimited by a combustion chamber wall (,) and filled with propellant granule (,), and also a means arranged in the combustion chamber for holding down the propellant granule. The gas generator according to the invention is characterized in that the means for holding down the propellant granule comprises a disc-shaped holding face (,) having grid holes, wherein the holding face is pressed into the combustion chamber and is connected in a form and force-fitting manner with the combustion chamber wall, and is prestressed and presses elastically onto the propellant granule, the grid holes having a smaller diameter than the propellant granule (,).

Gas generator for a safety device

A gas generator, in particular for vehicle occupant restraint systems, has a housing with chambers provided therein, of which at least one chamber is filled with gas and at least one chamber is filled with propellant the gas generator further has at least one igniter for igniting the propellant. The igniter cap is secured in a gas- and pressure-tight manner by welding to a closure part which closes an opening in the housing.

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München, Germany

Ingrid Hofbauer