| 摘要 |
An inflator capable of suppressing the exhausted amount of combustion residue and having pressurized gas contained therein of such a system that an air bag is inflated by combustion gas produced by the combustion of the pressurized gas and gas producing agent, wherein (1) the pressurized gas contains inert gas and does not substantially contain oxygen, (2) the pressure exponent of the gas producing agent is 0.8 or less, (3) the mole ratio of the amount of the pressurized gas to the amount of the combustion gas of the gas producing agent is 1 to 10, (4) the ratio of the mass of the pressurized gas to the mass of the gas producing agent is 1 to 10, (5) the amount of the gas producing agent is 1 to 30 g, and (6) a pressurized gas filling pressure is 30,000 to 67,000 kPa, whereby the hot combustion residue in the combustion gas of the gas producing agent (36) remains in the inflator (10) due to the composition of the gas producing agent (36), a difference in temperature between the combustion gas and the pressurized gas separated from each other through a first rupture disk (40), and collision of the combustion gas against a wall surface (22a) and the exhaustion thereof to the outside can be suppressed, and also a small-sized inflator can be provided.
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