초록 ▼

An air bag inflator (10) includes a housing (40) defining a combustion chamber (61) for providing inflation fluid for inflating an air bag. The housing (40) includes radially spaced side walls (50, 60) defining a filter chamber (140) disposed adjacent to the combustion chamber (61) for receiving inf

An air bag inflator (10) includes a housing (40) defining a combustion chamber (61) for providing inflation fluid for inflating an air bag. The housing (40) includes radially spaced side walls (50, 60) defining a filter chamber (140) disposed adjacent to the combustion chamber (61) for receiving inflation fluid from the combustion chamber. A filter assembly (150) is located in the filter chamber (140) for filtering inflation fluid flowing through the filter chamber. The filter assembly (150) includes a plurality of nested cylinders including outer and inner cylinders (160, 170). Each one of the outer and inner cylinders (160, 170) includes a plurality of tabs (180, 200) which engage an adjacent side wall (50, 60) of the housing (40) to maintain-the cylinder in position in the filter chamber (140). Each tab (180, 200) comprises an area of the material of the cylinder (160, 170) projecting out of the cylinder and defining a fluid flow opening (182, 220) in the cylinder. The fluid flow openings (182, 220) define a tortuous path for inflation fluid to flow through the filter chamber (140).

대표청구항 ▼

An apparatus for inflating an inflatable vehicle occupant protection device, comprising: a housing having an axis and defining a combustion chamber; an inflation fluid source in said combustion chamber for providing inflation fluid for inflating the inflatable device; said housing including spaced s

An apparatus for inflating an inflatable vehicle occupant protection device, comprising: a housing having an axis and defining a combustion chamber; an inflation fluid source in said combustion chamber for providing inflation fluid for inflating the inflatable device; said housing including spaced side walls defining a filter chamber disposed adjacent to said combustion chamber for receiving inflation fluid from said combustion chamber; said housing including fluid outlets for directing inflation fluid to flow from said filter chamber into the inflatable device; and a filter assembly in said filter chamber for filtering inflation fluid flowing through said filter chamber; said filter assembly comprising a plurality of nested cylinders including first and second cylinders, each one of said first and second cylinders including a plurality of tabs which engage an adjacent side wall of said housing to maintain said cylinder in position in said filter chamber, each one of said tabs comprising an area of the material of said cylinder projecting out of said cylinder and defining a fluid flow opening in said cylinder; said fluid flow openings defining a fluid flow path for inflation fluid to flow through said filter chamber from said combustion chamber to said fluid outlets.