Hybrid generator with perforating pillar
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United States of America Patent
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May 15, 2001
Grant Date -
N/A
app pub date -
May 9, 2000
filing date -
May 21, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to the field of hybrid gas generators intended to inflate an airbag to protect the occupants of a motor vehicle. The generator (1) according to the invention consists of a metal tube (2) containing an internal partition (26) having a central orifice (27) closed by a diaphragm (28). This partition divides the generator into a reservoir chamber (29) containing the pressurized gases and a combustion and mixing chamber (46) containing a pyrotechnic device (4) extended by a support piece (30) containing a piston-pillar (31) which rests against the diaphragm (28). The stroke of the piston is limited by fins and the base of the piston acts as a deflector, preventing hot gases from entering the reservoir chamber (29) during operation, so that this chamber can contain a greater amount of gas.
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