Trw Airbag Systems Gmbh

Trw Airbag Systems Gmbh & Co. Kg

Oskar Sponfeldner

Harald Lutz

Achim Hofmann

Joachim Lutz

Georg Sch&ouml;nhuber

An airbag module for a vehicle occupant restraint system includes an airbag () and a gas generator () that is connected via at least one first outflow opening () to an airbag chamber (), the airbag chamber () being at least partially formed by the interior of the airbag (), an actuator unit () being provided on the gas generator () and, when the actuator unit () is activated, it releases a traction element () that causes a pressure reduction in the airbag (), an activation of the actuator unit () also leading to an opening of a second outflow opening () in the gas generator (), which vents generator gas to an environment without this vented gas flowing into the airbag chamber (). Moreover, the invention relates to a method of restraining a vehicle occupant with such an airbag module.

Airbag module and method of restraining a vehicle occupant with such an airbag module

The invention relates to a gas generator comprising at least two combustion chambers filled with propellant charges and delimited by combustion chamber walls. The combustion chamber walls have outflow openings which in a non-activated state are closed by at least one applied membrane having an edge. One of an additional fastening device and a protective device is provided at least sections of the edge of the membrane. The device prevents a coming-off of the membrane from the combustion chamber wall.

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Muehldorf, Germany

Oskar Sponfeldner