Hybrid airbag inflator

Details Hybrid airbag inflator Hybrid airbag inflator

1996-07-23

2000-08-22

Dickson, Paul N.

Land vehicles

Wheeled

Attachment

280736, B60R 2126

Patent

active

061060089

ABSTRACT:
An improved hybrid airbag inflator comprises a container for storing a compressed gas having a rupturable wall defining an exit opening. A pyrotechnic gas generator has an output directed into the container for adding heat and mass flow to the compressed gas in the container. A single initiator ruptures the rupturable wall and initiates the gas generator, preferably via a pyrotechnic delay train which initiates combustion of the gas generator after a predetermined delay, to provide for delayed onset of the high pressure gas generator input. The initiator is preferably an electric detonator that produces a self forging fragment to rupture the rupturable wall and initiate the pyrotechnic delay. The pyrotechnic generator may also have a second output directed into a manifold leading from the container to the airbag and entering the manifold downstream from the inlet nozzles that restrict the flow of compressed gas into the manifold.

REFERENCES:
patent: 2400103 (1946-05-01), Cobb
patent: 5031932 (1991-07-01), Frantom et al.
patent: 5131680 (1992-07-01), Coultas et al.
patent: 5242194 (1993-09-01), Popek
patent: 5538278 (1996-07-01), Blackshire et al.
Ellern, Herbert. Military and Civilian Pyrotechnics, Chemical Publishing Company, Inc. pp. 197-215; 397, 1968.

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