| 摘要 |
A gas generator for an air bag that can adjust gas providing amount according to circumstance is provided. The gas generator includes an outer shell vessel, an ignition unit disposed within the vessel, a gas generating material for generating a gas in response to the operation of the ignition unit, a gas generating material accommodation chamber for accommodating the gas generating material therein, and a gas discharge chamber isolated from the gas generating material accommodation chamber by a partition member, wherein the gas discharge chamber includes a discharge port that makes the inside of the gas discharge chamber communicate with the atmosphere, and a gas discharge unit which is operated upon receiving an operating signal, for rupturing the partition member to discharge the gas.
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