Inflator with combustion chamber pressure regulator

Details Inflator with combustion chamber pressure regulator Inflator with combustion chamber pressure regulator

1995-12-27

1997-12-23

Rice, Kenneth R.

Land vehicles

Wheeled

Attachment

280737, 280741, B60R 2126

Patent

active

057000301

ABSTRACT:
An apparatus (22) for inflating an inflatable vehicle occupant protection device includes a housing (40) and a wall (86) located in the housing. The wall (86) cooperates with the housing (40) to define a combustion chamber(102). The wall (86) has an opening (88) through which fluid flows from the combustion chamber (102) to inflate the protection device. An ignitable material (120) is located in the combustion chamber (102). The ignitable material (120), upon ignition, increases the pressure in the combustion chamber (102). A valve member (160) is movable between a first position blocking the flow of fluid from the combustion chamber (102) through the opening (88) in the wall (86) and a second position allowing the flow of fluid from the combustion chamber through the opening in the wall. A spring (200) biases the valve member (160) toward the first position. The valve member (160) has a portion (164) against which the pressure in the combustion chamber (102) acts to move the valve member from the first position toward the second position in response to pressure in the combustion chamber increasing above a predetermined pressure.

REFERENCES:
patent: 3095901 (1963-07-01), Larson et al.
patent: 3731843 (1973-05-01), Anderson, Jr.
patent: 3862767 (1975-01-01), Chute
patent: 3891233 (1975-06-01), Damon
patent: 3986456 (1976-10-01), Doin et al.
patent: 4006919 (1977-02-01), Neuman
patent: 4886293 (1989-12-01), Weiler et al.
patent: 4950458 (1990-08-01), Cunningham
patent: 5078422 (1992-01-01), Hamilton e tal.
patent: 5257817 (1993-11-01), Cuevas

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