AIRBAG FILTER ASSEMBLY AND METHOD OF ASSEMBLY THEREOF.

摘要

An efficient, ligth-weight airbag inflation filter (50) includes a gas-permeable, substantially rigid support tube (56) having a plurality of uniform perforations (58) therethrough. A filtering element (62) formed from a continuous inorganic ceramic yarn or roving is helically cross-wound around the support tube (56) to form one or more layers covering the perforations (58) of the support tube (56). A wire screen (60), having openings therethrough smaller than the perforations (58) in the support tube (56), is disposed between the filtering element (62) and the support tube (56) to act as a gas diffusion layer for the gases passing through the inflation filter (50).