Variable output inflator with adaptive heat sinking

Details Variable output inflator with adaptive heat sinking Variable output inflator with adaptive heat sinking

1998-10-09

2000-03-21

Rice, Kenneth R.

Land vehicles

Wheeled

Attachment

B60R 2126

Patent

active

060393483

ABSTRACT:
A variable output air bag inflator is presented wherein in one embodiment the inflator offers variable output and may be implemented with either pyrotechnic or hybrid inflators. The inflator offers full level deployment at a first end of the inflator unit and reduced level deployment at a second end. This is accomplished by providing two discrete paths for the inflator gas to flow during deployment of the air bag cushion. One path communicates with a first filter material or permits the hot inflation gas to directly exit the inflator without passing through a filter material. The other path communicates with a second filter material which absorbs heat from the inflator gas as it passes through the second filter material before exiting the inflator, wherein the second filter material has a heat sink capacity greater than the first filter material. The energy content and pressure of the inflator gas is therefore regulated by directing the inflator gas through the second filter material.

REFERENCES:
patent: 3871684 (1975-03-01), Staudacher et al.
patent: 3877882 (1975-04-01), Lette et al.
patent: 4950458 (1990-08-01), Cunningham
patent: 5219178 (1993-06-01), Kobari et al.
patent: 5487561 (1996-01-01), Mandzy et al.
patent: 5649720 (1997-07-01), Rink et al.
patent: 5709406 (1998-01-01), Buchanan
patent: 5794973 (1998-08-01), O'Loughlin et al.
patent: 5799973 (1998-09-01), Bauer et al.

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