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    • 5. 发明授权
    • Gas generator
    • US10625706B2
    • 2020-04-21
    • US16314750
    • 2017-07-03
    • Daicel Corporation
    • Kenji FukumotoTomoharu Kobayashi
    • B60R21/264C06D5/00B60R21/26
    • B60R21/264C06D5/00B60R2021/26011
    • The present invention provides a gas generator, including: a cylindrical housing; an ignition device installed at a first end of the cylindrical housing, and a diffuser portion installed at a second end thereof; a flow channel forming member disposed inside the cylindrical housing and including a partition wall which separates a first chamber from a second chamber; a combustion chamber formed in the first chamber; a discharge passage formed in the second chamber; a first cylindrical space formed on the outside of the first circumferential wall and a first communication hole formed in the first circumferential wall; a second cylindrical space formed on the outside of the second circumferential wall and being in communication with the first cylindrical space, and a second communication hole formed in the second circumferential wall; a cylindrical filter disposed in the second cylindrical space; an outer diameter (d1) of the first circumferential wall, an outer diameter (d2) of the second circumferential wall and an outer diameter (d3) of the cylindrical filter satisfying relationships of d1>d2 and d1≥d3; and between the cylindrical filter and the inner wall surface of the cylindrical housing, the second cylindrical space facing the second communication hole via the cylindrical filter.