Temic Bayern-chemie Airbag Gmbh

Trw Airbag Systems Gmbh & Co. Kg

Hermann Bauer

Richard Bender

Siegfried Zeuner

Franz Furst

Marc Winterhalder

Bernhard Vetter

Uwe Dolling

Robert Schmucker

Josef V Simon

Franz F&uuml;rst

Rudolf Hawly

Thomas Kistler

Ludwig Oswald

Thomas Liebl

In a method and an air bag system for depleting the kinetic energy of a vehicle occupant in case of a vehicle accident involving heavy, negative acceleration, the air bag system comprising a control unit for inflating an air bag which activates the air bag system on the basis of electric signals of an acceleration sensor provided in the vehicle, further sensor elements are provided by means of which the parameters determining the individual kinetic energy of the vehicle occupant are sensed and electrical signals representing these parameters are transmitted by the sensor elements to an electronic analyzer connected to the control unit, this electronic analyzer establishing on the basis of these signals a point in time t,at which the vehicle occupant is likely to come into contact with the inflated air bag of the air bag system, the electronic analyzer calculating on the basis of the established point in time t,a prior point in time t,at which the inflation of the air bag is to commence and signalling this to the control unit which at the point in time t,activates inflation of the air bag, thus enabling optimum protection of the vehicle occupant seated in front of the air bag to be assured and preventing injury thereby.

Air bag system with variable activation time point

Device for filling a restraint device

The invention concerns a tubular gas generator for the filling of an airbag in a retention system for occupants of motor vehicles, whereby two separate combustion chamber units have a common connector and each combustion chamber unit has an ignitor unit with respective filters.

Pyrotechnic gas generator with two separate combustion chambers

A gas generator (10) which generates propellant gas for inflating a gas bag in an air bag system comprises a housing (11) having a combustion chamber (21) which is formed by an upper part (12) of the housing and a lower part (13) of the housing in the interior of the housing (11), discharge openings (32) in the housing (11) for the exit of the propellant gas from the housing (11) into the gas bag, a filter device (30) upstream of the discharge openings (32) and an ignition device (23) for igniting a solid propellant (22) contained in the combustion chamber (21), the propellant gas escaping from the combustion chamber (21) being directed out of the housing (11) via flow chambers (29). The combustion chamber (21) is formed by an interior space of a tubular insert (18) which is fixedly held between the upper part (12) of the housing and the lower part (13) of the housing, and the tubular insert (18) comprises outlet openings (32) into an annular flow chamber (29) between the tubular insert (18) and the housing (11). The tubular insert (18) has tabs (27) bent radially outwards which, on the one hand, form the outlet openings (28) and, on the other hand, serve as a means for holding the filter device.

Gas generator

Gas generator for a safety system for the protection of occupants of motor vehicles, with a tubular or cylindrical housing, wherein the gas-generating solid propellant is contained in a combustion chamber within which volume-equalizing structure is arranged, surrounding the propellant, both in the direction of flow--along the principal axis--and peripherally over the entire circumference.

Gas generator for a safety system for protecting occupants in motor

An essentially cylindrical gas generator for generating combustion gases. The gas generator includes a housing having gas outlet openings; a combustion chamber surrounded by the housing; gas-generating fuel disposed in the combustion chamber; an igniting device disposed in the combustion chamber for igniting the fuel; a first filter disposed between the fuel and the gas outlet openings for prefiltering generated gases upon passage thereof from the combustion chamber through the first filter toward the outlet openings; a second filter disposed between the first filter and the outlet openings for filtering the gases upon passage thereof from the first filter through the second filter; and a generally tubular body surrounding the second filter. The tubular body is surrounded by the housing, and is composed of a plurality of third filters and a plurality of guide plates circumferentially alternating with the third filters. The guide plates are disposed in a path of the gases exiting from the second filter, for guiding the gases in a circumferential direction along the second filter to the third filters for passage therethrough and through the outlet openings.

Growing community of inventors

Heidenheim, Germany

Hermann Bauer