Airbag module and diffuser therefor.

摘要

An air bag inflatable restraint module (410) comprising a reaction canister (424) accommodating an elongate inflator (420) with outlet ports (423), and an apertured flat diffuser (416) for redirecting and diffusing inflation gas. Apertures in the diffuser (416) may be symmetrically or asymmetrically disposed and may comprise circular apertures in substantial non-alignment with the inflator outlet ports (423) or may be louvred apertures each of which includes a slanted slat portion (471a-h). The slanted slats (471a-d) of a first group of apertures may be oppositely directed to the slats (471e-h) of a second group of apertures. Two groups of apertures may be separated by an aperture-free diffuser region (475). A filter (477) for trapping particulate material issued by the inflator (420) may be connected to an underside of the diffuser. <IMAGE>