Patent attributes
A gas generator includes, a housing having a gas discharge port closed, from the inside thereof, by a closing member; an ignition device accommodated inside the housing; and a gas generating agent ignited and burnt by activation of the ignition device to generate combustion gas. The gas discharge port includes a plurality of gas discharge port groups or a plurality of gas discharge ports, the plurality of gas discharge port groups or the plurality of gas discharge ports are opened by different pressures, respectively, and among the plurality of gas discharge port groups or the plurality of gas discharge ports, at least the gas discharge port group or the gas discharge port that is opened by higher pressure is covered with a cooling member from the outside.
