Hybrid gas generator unit used in motor vehicle safety for inflating a side airbag
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United States of America Patent
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Aug 24, 2004
Grant Date -
Apr 24, 2003
app pub date -
Sep 20, 2002
filing date -
Oct 19, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hybrid gas generator unit (1) used to inflate at least one side airbag, comprises a flexible element (9) containing a pyrotechnic charge (10) and possessing an upstream end (13) and a downstream end; a reservoir (18) of pressurized gas (19), the reservoir having an upstream end and a downstream end (30), and an electropyrotechnic igniter (3) housed in a body (2) near the upstream end (13) of the flexible element and the downstream end (30) of the reservoir. The igniter may be capable during operation of initiating the combustion of the pyrotechnic charge contained in the flexible element and of causing the pressurized gas contained in the reservoir to be released. The gas generator unit may be designed so that, after combustion of the pyrotechnic charge (10), the pressurized gas (19) escapes firstly from the reservoir (18) in order to pass through the body (2) and then sets off in the opposite direction to pass through the flexible element (9).
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