Anti-rupture method for liquid propellant gas inflator

Details Anti-rupture method for liquid propellant gas inflator Anti-rupture method for liquid propellant gas inflator

1996-12-03

1998-02-17

Johnson, Stephen M.

Ammunition and explosives

Cartridges

Having liquid/gas propellent means

102530, 280737, 280741, B60R 2126

Patent

active

057193517

ABSTRACT:
An inflator of a vehicle safety restraint system includes a housing having a reservoir of liquid propellant. A combustion chamber is disposed in the housing in communication with the liquid propellant reservoir. A regenerative piston is movably disposed within the housing for separating the liquid propellant reservoir and the combustion chamber. The piston head includes a plurality of injection ports for delivering the liquid propellant to the combustion chamber in a controlled manner. A pressure relieving bore, normally sealed by the piston stem, is disposed in the housing for relieving pressure in the liquid propellant reservoir. Decomposition or combustion within the propellant storage reservoir will move the piston to open the pressure relief bore which depressurizes the liquid propellant and prevents rupture and fragmentation of the inflator.

REFERENCES:
patent: 3618974 (1971-11-01), Chute
patent: 3689105 (1972-09-01), Matsui et al.
patent: 3690255 (1972-09-01), Vass et al.
patent: 3960390 (1976-06-01), Goetz
patent: 4326377 (1982-04-01), Jaqua
patent: 5060973 (1991-10-01), Giovanetti
patent: 5330730 (1994-07-01), Brede et al.
patent: 5345876 (1994-09-01), Rose et al.
patent: 5487561 (1996-01-01), Mandzy et al.

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