Trw Airbag Systems Gmbh

Lorenz Seidl

Detlef Last

Rolf Ruckdeschel

Thomas Kapfelsperger

Christian Jung

Georg Tautschnig

Daniel Hillmann

Wolfgang Tengler

The invention relates to a propellant cage () for an inflator, especially for a tubular inflator of an airbag module, comprising a substantially tubular base () which forms, on the one hand, a gas inlet opening () and, on the other hand, a gas outlet opening () along its longitudinal axis (L), wherein at least one lateral gas flow opening () is configured in a circumferential wall () of the base (), wherein the base () includes a radially outwardly extending collar () having at least one frontal gas flow opening () in the area of the gas flow opening ().

Propellant cage for an inflator, inflator comprising such propellant cage operating method and method of guiding a shock wave of an inflator

The invention relates to a hybrid inflator () includes at least one combustion chamber () in which propellant charge is arranged and which has a discharge end (), the propellant charge being formed of at least one propellant element (), at least one igniting unit () by which the propellant charge can be ignited. The hybrid inflator () also includes at least one bursting element (&#x2033;) which in the inactivated state of the hybrid inflator () delimits the combustion chamber () against a gas supply chamber () at the discharge end (). The bursting element (&#x2033;) and a restraint element (&#x2033;) maintain the propellant charge in its position and/or the bursting element (&#x2033;) and the propellant charge delimit a shock gas volume (SGV), wherein in the activated state of the hybrid inflator () the shock gas volume (SGV) acts on the bursting element (&#x2033;) like a gas pressure spring.

Hybrid inflator and vehicle safety system comprising said hybrid inflator as well as method of forming a shock wave

The invention relates to a hybrid inflator () including a burst cap () including a bottom () and a sleeve-like side wall (), the bottom () and the side wall () delimiting an igniter compartment (), and the burst cap () in the idle mode being pressurized on the outer peripheral side with compressed gas having a filling pressure (PF) which at a functional maximum temperature of the hybrid inflator () has a maximum filling pressure (PFmax), and wherein the burst cap () can be destroyed by an igniter compartment side bursting pressure in the case of operation. In accordance with the invention, a transitional portion () is formed from the side wall () of the burst cap () to the bottom () so that the igniter compartment side bursting pressure required to destroy the burst cap () is lower than the sum of the maximum filling pressure (PFmax) and the filling pressure (PF). The invention further relates to a burst cap, an airbag module, a vehicle safety system as well as a method of manufacturing a burst cap.

Hybrid inflator comprising a burst cap, burst cap, airbag module, vehicle safety system and method of manufacturing a burst cap

The invention relates to a burst device (), especially for a hybrid inflator () including a burst member () delimiting an igniter compartment () at least in portions on its inside (), wherein the burst member () in the idle mode can be pressurized with compressed gas on its outside () and, in the case of operation, the burst member () can be destroyed by an igniter compartment side bursting pressure, in accordance with the invention, the burst device () includes a support sleeve () arranged in the igniter compartment () and including an opening (), the support sleeve () including a collar () delimiting the opening (), wherein the burst member () rests on the collar () of the support sleeve () at least in portions upon pressurization from outside.

Burst device, hybrid inflator, airbag module and vehicle safety system

The invention relates to a bursting diaphragm () for an inflator () comprising at least one predetermined breaking contour () destroyable upon activation of the inflator (), wherein a shock wave can be generated. In accordance with the invention, the predetermined breaking contour () includes a through hole () on at least one end point (), especially on all end points ().

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Rechtmehring, Germany

Lorenz Seidl