GAS GENERATOR

To provide a technique capable of simplifying the structure of a gas generator using fuel gas and oxidative gas.SOLUTION: A gas generator comprises: a first partition wall part which defines, within an outer-shell housing, an ignition chamber with ignition means accommodated therein and a gas filling chamber filled with gas; a first communication part which is provided in the first partition wall part, and which is opened by actuation of an igniter, thereby allowing the ignition chamber to communicatee with the gas filling chamber; a discharge part which is provided in the outer-shell housing, and which is opened by actuation of the igniter, thereby allowing the gas filling chamber to communicate with the outside of the outer-shell housing; a second partition wall part which defines, within the gas-filling chamber, a first filling chamber adjacent to the first communication part and a second filling chamber adjacent to the discharge part; fuel gas filled into one of the first filling chamber and the second filling chamber; oxidative gas filled into the other of the first filling chamber and the second filling chamber; and a second communication part which is provided in the second partition wall part, and which is opened by actuation of the igniter, thereby allowing the first filling chamber to communicate with the second filling chamber.SELECTED DRAWING: Figure 1 【課題】燃料ガスと酸化性ガスとを用いたガス発生器の構造を簡素化可能な技術を提供する。【解決手段】ガス発生器は、点火手段が収容される点火室とガスが充填されるガス充填室とを外殻ハウジングの内部に画定する第１隔壁部と、第１隔壁部に設けられ、点火器の作動により開口することで点火室とガス充填室とを連通する第１連通部と、外殻ハウジングに設けられ、点火器の作動により開口することでガス充填室と外殻ハウジングの外部とを連通する排出部と、第１連通部に隣接する第１充填室と排出部に隣接する第２充填室とをガス充填室の内部に画定する第２隔壁部と、第１充填室及び第２充填室の一方に充填された燃料ガスと、他方に充填された酸化性ガスと、第２隔壁部に設けられ、点火器の作動により開口することで第１充填室と第２充填室とを連通する第２連通部と、を備える。【選択図】図１