Trw Airbag Systems Gmbh

Zf Airbag Germany Gmbh

Hans-Peter Neumayer

Sebastian Bierwirth

Achim Hofmann

Hannes Nuiding

Dieter Spitzenberger

Dietmar Schwebel

Tobias Breddermann

Josef Bommer

Thomas Schober

Johannes Ebner

Dieter Leier

Georg Schoenhuber

Joerg Friedrich

Franz Fuerstenberger

Karl Englbrecht

Christian Jung

Detlef Last

Vadim Kolbin

Georg Tautschnig

Fabien Cristoforetti

Martin Oberstarr

Daniel Hillmann

Uta Isenmann

Georg Schönhuber

Benedikt Peters

Josef Leitl

Franz Fürstenberger

Jörg Friedrich Dr

Johannes Bommer

The invention relates to a hybrid gas generator () which comprises a compressed gas chamber () and an igniting unit (), wherein the compressed gas chamber () is closed by a first igniter-side bursting membrane () and a second bursting membrane (). According to the invention, a first, rapidly burning-off pyrotechnic agent () and a second pyrotechnic agent () burning off slowly in comparison to the first pyrotechnic agent () are located in the hybrid gas generator (), wherein the second bursting membrane () is openable by positive pressure which can be generated in the compressed gas chamber () and the first pyrotechnic agent () is separated from the second pyrotechnic agent () in such a manner that the positive pressure in the compressed gas chamber () for opening the second bursting membrane () can be generated by the first pyrotechnic agent ().

Hybrid gas generator, method for operating a hybrid gas generator, airbag module and vehicle safety system

The disclosure relates to a gas generator for a vehicle safety system, comprising a first ignition stage, and a second second ignition stage. The first ignition stage comprises a cup-shaped diffuser with a diffuser base and an adjacent diffuser sidewall (). The first ignition stage, the diffuser and the second ignition stage are arranged along an axial longitudinal axis of the gas generator and the diffuser is positioned between the first and second ignition stages such that the second ignition stage is fastened on an outer area of the diffuser.

Gas generator for vehicle safety system, airbag module and vehicle safety system

The invention relates to an overigniting protection device () for a multi-stage gas generator (), comprising a combustion chamber limiting element () for limiting a combustion chamber () of a second ignition stage () of the gas generator () as well as an overigniting protection element () which is arranged on a side of the combustion chamber limiting element () remote from the combustion chamber (), wherein the overigniting protection element () covers the side of the combustion chamber limiting element () remote from the combustion chamber (), wherein the overigniting protection element () is tightly connected to the combustion chamber limiting element () via a mounting portion () and wherein the overigniting protection element () is substantially plate-shaped or completely covers the side of the combustion chamber limiting element () remote from the combustion chamber (). Furthermore, the invention relates to a second ignition stage () of a multi-stage gas generator, a gas generator () and an airbag module comprising a gas generator ().

Overigniting protection device, second ignition stage, gas generator and airbag module

An inflator as well as a method of manufacturing an inflator, a module including an inflator and an airbag module. In an inflator, especially for a protective device in a vehicle, comprising plural components a sealant is applied in the area of abutting components, especially a sealant which adheres to both abutting components.

Inflator, method of manufacturing the same and module including said inflator

The invention relates to a pyrotechnical actuator for a vehicle safety system comprising a cylinder () and a hollow piston () being displaceable relative to each other from an idle state to an activated state, wherein an igniter unit () being tightly connected to the hollow piston () is arranged inside the hollow piston (). The invention excels by the fact that in the idle state the hollow piston () is received in the cylinder () and in the activated state it protrudes at least partially from the cylinder () so that the actuator has a larger total length in the activated state than in the idle state. The invention further relates to an actuator and a vehicle safety system comprising such actuator as well as to an actuating method.

Pyrotechnical actuator for vehicle safety system, actuator assembly, vehicle safety system comprising such actuator as well as actuating method

An inflator for a protective device in a vehicle includes a diffuser () forming a substantially rotation-symmetric external housing of the locator with a closing member (), wherein the diffuser () includes a plurality of discharge orifices () arranged in a row, and which are of circular shape. The inflator also includes a circumferential wall () which surrounds a combustion chamber () and a filter () which extends at least partially along the wall (), wherein the wall () has at least one supporting portion () which constitutes an axial support for the filter () and is integrally formed with the wall (), and wherein either plural supporting portions () are formed by embossed beads, the heads being spaced apart from each other in circumferential direction, and wherein a supporting portion () is formed by a completely circumferential embossed bead.

Inflator and airbag module

An inflator for a protective device in a vehicle includes a diffuser () forming a substantially rotation-symmetric external housing of the inflator with a closing member (), wherein the diffuser () includes a plurality of discharge orifices () arranged in a row, and which are of circular shape. The inflator also includes an igniter sleeve () which at least partially encloses an igniter () and an igniter chamber () filled with a booster charge and is adjacent to a first combustion chamber () filled with fuel, wherein the igniter sleeve (), related to a central axis B of the igniter sleeve (), has overflow orifices () unevenly distributed in circumferential direction.

An inflator for a protective device in a vehicle includes a diffuser () forming a substantially rotation-symmetric external housing of the inflator with a closing member (), wherein the diffuser () includes a plurality of discharge orifices () arranged in a row, and which are of circular shape. The inflator also includes a combustion chamber sleeve () which at least partially encloses a combustion chamber () filled with fuel, wherein the combustion chamber sleeve () is designed such that it changes its shape by pressure formed during combustion of the fuel so as to release a discharge orifice () leading out of the combustion chamber () into a further combustion chamber () of the inflator, for a combustion gas formed during combustion of the fuel.

An inflator for a protective device in a vehicle includes a diffuser () forming a substantially rotation-symmetric external housing of the inflator with a closing member (), wherein the diffuser () includes a plurality of discharge orifices () arranged in a row, and which are of circular shape. The inflator also includes a filter () and a combustion chamber component at least partially enclosing at least one of a combustion chamber () and a combustion chamber sleeve (), wherein the filter () extends in a ring-shaped manner about the combustion chamber () and, at a position of its ring-shaped extension, includes a critical filter portion () which is closer to the combustion chamber component than the remaining filter areas situated at its ring-shaped extension, wherein the critical filter portion () has a reduced thickness compared to areas of the filter that are adjacent to the critical filter portion ().

An inflator, especially for a protective device in a vehicle, includes a diffuser () which preferably forms a substantially rotation-symmetric external housing of the inflator with a closing member (). The diffuser () includes more than 12, preferably more than 14, further preferably 23 discharge orifices () arranged in a row. Moreover, the inflator exhibits a plurality of further peculiarities.

Gas generator and airbag module

Gas generator, method for the production thereof and module having a gas generator

The invention relates to a gas generator () for use in a safety device for motor vehicles comprising a housing and a propellant () contained in a combustion chamber () of the housing for generating a pressurized gas, the housing comprising a first housing part () and a second housing part () at least partly surrounded by the first housing part () and at least one igniter () for igniting the propellant (), and an annular filter () surrounding the combustion chamber () in which the propellant () is located. The filter () comprises a peripheral portion () and a radial portion (), the radial portion () serving as filling body for the propellant () in the combustion chamber ().

Growing community of inventors

Ampfing, Germany

Hans-Peter Neumayer