Patent ID: 6648370
Filing Date: 2003-11-18
Classification: B60R,F23C,F23D

Abstract:
A gas generating apparatus, comprising:a vessel having a top wall and a side wall and containing a first combustion chamber having a first opening; and a second combustion chamber having a second opening; wherein each of the combustion chambers contains an ignitor and a propellant; wherein at least one of the combustion chambers contains a cap containing a booster propellant and an auto ignition propellant; a filter chamber accommodating a filter, wherein said filter chamber overlies the top wall of the vessel and is separated from each of said combustion chambers; wherein the vessel includes a metal lining covering an interior surface of the side wall of the vessel and wherein an interior surface of the top wall of the vessel is not covered by the metal lining, wherein the metal lining is supported by a retainer plate; wherein the apparatus is configured so that a combustion gas produced in the first combustion chamber exits the first combustion chamber through the first opening and enters a first portion of the filter chamber without passing through the second chamber; and a reverse-flow prevention member provided over the second opening thereby preventing the combustion gas generated in the first combustion chamber from flowing into the second combustion chamber.