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1. 发明授权

US5564741A Air bag filter and seal arrangement 失效
标题翻译：气囊过滤器和密封排列
公开(公告)号：US5564741A
公开(公告)日：1996-10-15
申请号：US489467
申请日：1995-06-12
申请人： Alan J. Ward , Guy R. Letendre , Harry M. Miller , David W. Lindsey , Brent K. Olson , Michael P. Jordan
发明人： Alan J. Ward , Guy R. Letendre , Harry M. Miller , David W. Lindsey , Brent K. Olson , Michael P. Jordan
IPC分类号： B60R21/26 , B60R21/264 , B60R21/28
CPC分类号： B60R21/2644
摘要： A filter, seal and port arrangement for a pyrotechnic air bag inflator. The seal consists of a ring or annulus of sheet metal which has a foot section abutting against the filter, and a leg section of the seal angled to form an interference fit against an interior wall of the generator housing. For annular filters used in axial flow inflators, a ring is used at the radially inner and outer edges of the annular filter. For tubular filters used in radial flow inflators, a single seal at a longitudinal end may be sufficient. With such tubular filters, the seal may include a stand-off to form an annular void between the radially outer face of the filter and the wall of the housing. This void will act as a plenum to ensure that a greater volume of the filter is used. The tubular filter itself may also be formed with raised lands such that the interposed grooves form such a plenum. In a similar manner the disk filters may also have plenum producing lands on their outer faces, or the housing may include such lands. The housing may also be provided with tangentially oriented ports between the ignitor and the gas generating material to increase the contact area between the combusting ignitor and the generant, and to reduce the impingement force produced by the combusting ignitor.
摘要翻译：用于烟火气囊充气机的过滤器，密封件和端口装置。密封件由金属板的环或环形件组成，其具有抵靠过滤器的脚部分，并且密封件的腿部成角度以形成与发电机壳体的内壁的过盈配合。对于用于轴流式充气机的环形过滤器，在环形过滤器的径向内部和外部边缘处使用环。对于在径流式充气机中使用的管状过滤器，纵向端部的单个密封件可能是足够的。利用这种管状过滤器，密封件可以包括在过滤器的径向外表面和壳体的壁之间形成环形空隙的间隔件。该空隙将作为增压室，以确保使用更大体积的过滤器。管状过滤器本身也可以形成有凸起的焊盘，使得插入的凹槽形成这样的增压室。以类似的方式，盘式过滤器也可以在其外表面上具有增压室生产区域，或者壳体可以包括这种平台。壳体还可以设置在点火器和气体发生材料之间的切向定向的端口，以增加燃烧点火器和发生器之间的接触面积，并且减小由燃烧点火器产生的冲击力。

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