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Gas generator

  • US 20080063993A1
  • Filed: 08/27/2007
  • Published: 03/13/2008
  • Est. Priority Date: 08/28/2006
  • Status: Active Grant
First Claim
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1. A gas generator comprising:

  • a housing having a gas discharge port;

    one or two or more combustion chambers accommodating a gas generating agent therein;

    a cylindrical filter disposed between the gas discharge port and the combustion chamber; and

    one or two or more ignition devices for igniting and combusting the gas generating agent, each device comprising an igniter assembly in which an electric igniter is enclosed and fixed by a metal member and a resin portion, the igniter assembly having a holder accommodation space in the resin portion, being disposed so that the holder accommodation space is disposed over an opening formed in a bottom portion of the housing, the igniter assembly being fixed by a holder inserted from the outside into the opening; and

    an inner wall surface of the holder accommodation space having a concave portion and a convex portion, the holder having a convex portion and a concave portion, and the concave and convex portion of the inner wall surface of the holder accommodation space and the convex and concave portion of the holder engaging with each other, so that the igniter assembly is fixed without welding to the bottom portion of the housing.

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