| 摘要 |
The present invention provides a gas generator (10) including, a tubular housing (12) including, on a circumferential surface thereof, at least two gas discharge port groups (16A, 16B) having a first gas discharge port group (16A) and a second gas discharge port group (16B), the second (16B) being separated axially from the first gas discharge port group (16A), both being closed by a seal member (17), a first closing member (30) having an ignition device (25) and a second closing member (14), closing one end and the other end of the tubular housing (12), respectively, opening pressures P1 and P2 for opening the first and second gas discharge port groups (16A, 16B), satisfying a relationship P1 < P2, the first gas discharge port group (16A) being positioned at a center portion in the axial direction of the tubular housing (12) or in the vicinity thereof, and the second gas discharge port group (16B) being positioned at a center portion between the first gas discharge port group (16A) and the second closing member (14) or in the vicinity thereof, respectively. |
