Patent ID: 9566938
Date: 2017-02-14
CPC Classifications: B01J,B60R,F17C

Claim:
1. A gas generator, comprising: a housing having therein an ignition device chamber, which is provided with a gas discharge port and accommodates an ignition device, and a pressurized gas chamber filled with a pressurized gas; a partition wall having a communication hole therein for separating the ignition device chamber and the pressurized gas chamber, the partition wall being in a cup-like shape which includes a bottom surface and a circumferential wall surface, and which projects from the ignition device chamber toward the pressurized gas chamber, the partition wall having a flange portion provided at a portion corresponding to an opening of the partition wall in the cup-like shape and being fixed to the housing, the communication hole being provided only in the circumferential wall surface; a disk closing member being disposed inside the partition wall to be movable in an axial direction of the housing with a distance from the bottom surface, prior to activation, the communication hole being closed by a circumferential surface of the disk closing member, and at the time of activation, the disk closing member being moved toward the bottom surface by combustion products generated by activation of the ignition device, thereby opening the communication hole and making communication between the ignition device chamber and the pressurized gas chamber.