Trw Airbag Systems Gmbh

Trw Airbag Systems Gmbh & Co. Kg

Andreas Zehentmeier

Achim Hofmann

Siegfried Zeuner

Roland Schropp

Ernst Enzmann

Josef Werneth

Silvia Michl

Rolf Ruckdeschl

Peter Roemer

A pyrotechnic drive unit includes a cylinder tube () having an axial end (), a piston () guided in the cylinder tube (), a pyrotechnic igniter () which is adjacent to the piston () and constitutes the pyrotechnic drive, and a plastic part (). The plastic part () is injection-molded to the igniter () and to the axial end () of the cylinder tube () so that it fastens the igniter () to the cylinder tube () and tightly closes the axial end () of the cylinder tube (), the plastic part () engaging the piston () in an initial position of the drive unit ().

Pyrotechnic drive unit and method for the production of such a unit

The invention relates to a gas generator for generating gases, comprising a housing which has an interior space and at least one combustion chamber filled with a predetermined quantity of solid propellant. The propellant consists of a plurality of solid propellant parts arranged in the combustion chamber in an irregular manner. The compressed gas is stored in a predetermined quantity in the combustion chamber and the combustion chamber constructed as a pressure chamber sealed hermetically toward outside in a non-activated state of the gas generator.

Gas generator

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Ampfing, Germany

Andreas Zehentmeier