B - Operations – Transporting – 60 – R
Patent
B - Operations, Transporting
60
R
B60R 21/26 (2006.01)
Patent
CA 2102671
A gas generator includes a chamber in which inert gas under high pressure is stored, a diffuser chamber, and a chamber containing a pyrotechnic heater and initiator. Upon receiving an electrical signal the initiator fires igniting the pyrotechnic charge. As pressure in the combustion chamber of the pyrotechnic heater rises and exceeds the storage chamber pressure, a plug in a shoulder covering the pyrotechnic nozzle orifice is unseated, subsequently rupturing a thin metal sealing diaphragm since the latter is unsupported for a pressure differential in this direction. Hot gas and particles from the burning pyrotechnic heat the stored gas causing a rapid pressure rise in the storage chamber. When the storage chamber pressure exceeds the structural capability of a thin metal disc between the diffuser and storage chambers, it ruptures allowing the heated gas to vent through the diffuser orifices into the air bag assembly.
Autoliv Asp Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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