Gas generator for a safety device
First Claim
1. A gas generator for a safety arrangement, in particular for a vehicle occupant restraint system, comprising:
- a combustion chamber delimited by a combustion chamber wall;
longitudinal ribs formed in the combustion chamber wall and arranged so as to oppose each other;
propellant granule filled into the combustion chamber to a preselected filling level; and
a means arranged in the combustion chamber for holding down the propellant granule, wherein the means for holding down the propellant granule consists of a perforated metal sheet having two opposed straight edges, wherein the perforated metal sheet is pressed into the combustion chamber so that the straight edges engage the longitudinal ribs, thereby forming a form- and force-fitting connection, wherein the perforated metal sheet is pre-stressed for pressing elastically onto the propellant granule, thereby arresting the propellant granule at the preselected filling level, and wherein the holding face has grid holes having a diameter smaller than the propellant granule.
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Accused Products
Abstract
The invention relates to a gas generator for a safety arrangement, in particular for a vehicle occupant restraint system, comprising a combustion chamber (4) delimited by a combustion chamber wall (4a) and filled with propellant granule (3), and also a means arranged in the combustion chamber for holding down the propellant granule. The gas generator according to the invention is characterized in that the means for holding down the propellant granule comprises a disc-shaped holding face (1) having grid holes, wherein the holding face is pressed into the combustion chamber and is connected in a form and force-fitting manner with the combustion chamber wall, and is prestressed and presses elastically onto the propellant granule, the grid holes having a smaller diameter than the propellant granule (3).
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Citations
2 Claims
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1. A gas generator for a safety arrangement, in particular for a vehicle occupant restraint system, comprising:
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a combustion chamber delimited by a combustion chamber wall;
longitudinal ribs formed in the combustion chamber wall and arranged so as to oppose each other;
propellant granule filled into the combustion chamber to a preselected filling level; and
a means arranged in the combustion chamber for holding down the propellant granule, wherein the means for holding down the propellant granule consists of a perforated metal sheet having two opposed straight edges, wherein the perforated metal sheet is pressed into the combustion chamber so that the straight edges engage the longitudinal ribs, thereby forming a form- and force-fitting connection, wherein the perforated metal sheet is pre-stressed for pressing elastically onto the propellant granule, thereby arresting the propellant granule at the preselected filling level, and wherein the holding face has grid holes having a diameter smaller than the propellant granule. - View Dependent Claims (2)
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Specification
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- Resources
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Current AssigneeTRW Airbag Systems GmbH & Co., KG
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Original AssigneeTRW Airbag Systems GmbH & Co., KG
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InventorsSommer, Karl-Heinz, Schönhuber, Georg, Hofbauer, Ingrid, Unterforsthuber, Karl
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Primary Examiner(s)Mai, Lanna
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Assistant Examiner(s)Ilan, Ruth
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Application NumberUS09/171,252Time in Patent Office985 DaysField of Search102/530, 102/531, 280/736, 280/740, 280/741, 280/742US Class Current280/741CPC Class CodesB60R 21/2644 using only solid reacting s...
