Gas generator for restraining device of vehicle
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United States of America Patent
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-
May 13, 2014
Grant Date -
Aug 11, 2011
app pub date -
Jan 14, 2010
filing date -
Jan 15, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A gas generator includes,
- a housing having a circumferential wall, a first end, and a second end, aninner tube member disposed in the housing, an outer space thereof being a combustion chamber,an outer circumference cylindrical member being such that one end opening abuts against a bottom plate of the second end,an annular porous member provided between the outer circumference cylindrical member and the cup-shaped inner tube member so as to form a space above the combustion chamber,a gas discharge path formed between the outer circumference cylindrical member and an inner wall surface of the circumferential wall portion of the housing;a communicating portion communicating the space and the gas discharge path, and being provided in the other end opening of the outer circumference cylindrical member; anda total cross-sectional area of the gas discharge port being smaller than a smallest cross-sectional area of a gas pathway.
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