Trw Automotive Gmbh

Karl-Heinz Köeppel

Joachim Biller

Thomas Moedinger

Simon Schreiber

Alex Waidmann

Markus Peters

Silvia Feifel

Senra Oezkan

A belt tensioner () for a vehicle occupant restraint system comprises a tube () containing gas in the trigger case and an igniter unit () arranged in the tube () which igniter unit is inserted in an open end face () of the tube () and includes a base () and a cap () fastened to the base () for accommodating a propelling charge, wherein the cap () is arranged at least pertly inside the tube. The igniter unit () is welded to the tube ().

Seat belt tensioner for a vehicle passenger restraint system

An actuator, especially for a vehicle protection system, comprises at least one wire () variable in shape depending on temperature made from a shape memory alloy and an elongate pyrotechnical element () connected to the shape-variable wire () so that upon ignition of the pyrotechnical element () the wire () is heated and experiences a change of length. The vehicle protection system is, for example, an airbag system comprising an airbag and a regulating mechanism for the internal airbag pressure, wherein the wire () of the actuator () is connected to the regulating mechanism so that a change of shape of the wire () exerts a force on the regulating mechanism.

Actuator and vehicle protection system

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Waldstetten, Germany

Karl-Heinz Köeppel