Air bag inflator for vehicle occupant restraint

摘要

The air bag inflator (10) includes an ignitable gas generating material (50). An initiator (36) is provided for igniting the gas generating material. A tubular wall (100) defines a combustion chamber (54) containing the gas generating material. A number of gas flow openings (150) extend radially outward from the combustion chamber through the tubular wall. A filter (102) extends circumferentially and axially over the tubular wall. The tubular wall includes a structure (160) defining a space which provides plenum (170) extending radially outward from the gas flow openings to the filter.