Piston driven cold gas air bag inflator

Details Piston driven cold gas air bag inflator Piston driven cold gas air bag inflator

1993-07-23

1994-04-12

Focarino, Margaret A.

Land vehicles

Simulations of the velocipede type

Occupant propelled

280741, 222 3, B60R 2126

Patent

active

053019792

ABSTRACT:
Cold pressurized pure inert gas (i.e., argon, nitrogen) is delivered to an air bag with the addition of mechanical energy to aid in filling the bag by an inflator comprising a high strength container or bottle having a cylindrical section that is filled with inert gas. A piston is located at one end of the cylindrical section with a high energy pyrotechnic behind it. Both sides of the piston are at the same pressure during storage. An initiator is located in the high energy pyrotechnic. A burst disk is located at the opposite end of the cylindrical section. When the initiator is fired, the piston is driven down the length of the cylindrical section. When the pressure in the container exceeds the burst disk strength, the inert gas expands into the air bag or apparatus needing to be filled.

REFERENCES:
patent: 3868124 (1975-02-01), Johnson
patent: 5226561 (1993-07-01), Hamilton et al.
patent: 5242194 (1993-04-01), Popek

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