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Filter for a gas generator

  • US 10,099,648 B2
  • Filed: 03/23/2015
  • Issued: 10/16/2018
  • Est. Priority Date: 03/28/2014
  • Status: Active Grant
First Claim
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1. A pyrotechnical gas generator comprising:

  • a housing;

    a combustion chamber in the housing;

    a filter including a filtering material; and

    a protection screen, the protection screen forms at least one sealed loop arranged to surround at least a part of a charge of the pyrotechnical gas generator in such a manner as to protect at least a part of the filtering material from a pressure wave from ignition of the chargewherein the filtering material has a height and the protection screen covers the filtering material at a midpoint of the height,wherein the filter has a first axial end adjacent a first end of the housing and a second axial end adjacent a second end of the housing such that the first and second axial ends of the filter are held to the housing at contact zones to maintain positioning of the filter within the housing, andwherein the protection screen is radially spaced from both the first end of the housing and the second end of the housing.

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