Dual-wall pyrotechnic air bag inflator with tortuous gas flow

Details Dual-wall pyrotechnic air bag inflator with tortuous gas flow Dual-wall pyrotechnic air bag inflator with tortuous gas flow

1995-06-28

1996-12-10

Johnson, Brian L.

Land vehicles

Wheeled

Attachment

280741, 102531, B60R 2126

Patent

active

055824277

ABSTRACT:
A dual-walled air bag inflator having a filter and gas generant within a common chamber, with the gas exiting radially from the inflator. Various arrangements are provided to force the generated gas to change its direction of travel at least 90.degree. prior to exiting in order to slow the gas and improve filtration. Gas barriers are placed within the chamber to force the desired flow. The gas flow may be directed radially inward in opposed streams to cancel velocity, and then directed radially outward toward the filter and exits. In one embodiment a mixing chamber is provided for the gas prior to encountering the filter.

REFERENCES:
patent: 3934984 (1976-01-01), Marlow et al.
patent: 4578247 (1986-03-01), Bolieau
patent: 4943086 (1990-07-01), Cunningham
patent: 5189255 (1993-02-01), Fukabori et al.
patent: 5201542 (1993-04-01), Thuen et al.
patent: 5492366 (1996-02-01), Osborne et al.

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