Trw Airbag Systems Gmbh

Zf Airbag Germany Gmbh

Manfred Ramp

Detlef Last

Georg Tautschnig

Rolf Ruckdeschel

A gas generator, such as for a safety device in vehicles, comprises a pressure chamber which is filled with compressed gas and which is closed off from an environment outside of the gas generator by a membrane. The compressed gas contains a gaseous oxidant which is composed predominantly of oxygen. The pressure chamber receives a solid fuel, wherein the compressed gas is in direct contact with the fuel before the gas generator is activated. When the gas generator is activated, an igniter separated pressure-tightly from the pressure chamber triggers a conversion of the gaseous oxidant with the solid fuel, with heat being generated. The fuel is in the form of a gas-permeable fuel body made up of one or more fibers, and the molar fraction of the gaseous oxidant in the compressed gas is at least 1.1 times the amount of oxidant required for a stoichiometric conversion of the gas-permeable fuel body. A module and a vehicle safety system comprise such a gas generator.

Gas generator, module, vehicle safety system

A propellant cage () for a tubular inflator (), especially for a tubular inflator () of an airbag module, for forming a propellant chamber () and a flow passage () of the tubular inflator (). The propellant cage () is in the form of a propellant cage spiral spring () having a gas inlet-side end () and a gas outlet-side end (), the gas inlet-side end () having a smaller cross-section than the gas outlet-side end ().

Propellant cage and packing element for a tubular inflator

The invention relates to a combustion chamber screen, especially for an inflator, that includes plural flow orifices and bent segments. In accordance with the invention, the bent segments are arranged around a center (M) of the combustion chamber screen so that in the circumferential direction of the combustion chamber screen () a waveform having plural wave peaks () and wave troughs () is formed.

Combustion chamber screen, especially for an inflator, inflator, airbag module vehicle safety system and method of manufacturing a combustion chamber screen

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Waldkraiburg, Germany

Manfred Ramp