US2010109295A1PendingUtilityA1
Gas generating system
Individually held — no corporate assignee on recordPriority: Jun 2, 2005Filed: Jan 7, 2010Published: May 6, 2010
Est. expiryJun 2, 2025(expired)· nominal 20-yr term from priority
B60R 21/2644C06D 5/06F42B 3/04
36
PatentIndex Score
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Claims
Abstract
A gas generating system for use in an inflatable vehicle occupant protection system is provided wherein an end closure is coupled to an outer housing at a first end, in a metal-to-metal seal. The gas generating system may also include a baffle system having a plurality of flow orifices defining a flow path for generated gases through an interior of the gas generating system, and a plurality of particulate aggregation surfaces positioned along the flow path of the gases for changing a flow direction of gases impinging on the aggregation surfaces. Each aggregation surface of the plurality of aggregation surfaces is oriented such that a difference between a flow direction of the gases prior to impinging on the aggregation surface and a flow direction of the gases after impinging on the aggregation surface is at least approximately 90°, wherein particulates in gases impinging on the aggregation surfaces aggregate on the surfaces.
Claims
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31 . A gas generating system comprising:
an outer housing; an inner housing positioned within the outer housing; and a baffle member contacting a portion of the inner housing to secure the portion in a position within the outer housing.
32 . The gas generating system of claim 31 wherein the inner housing has a chamber formed therein, and wherein the baffle member includes a base portion extending into the chamber and contacting a portion of the inner housing to secure the portion in the position.
33 . The gas generating system of claim 31 wherein the inner housing has a wall, the baffle member has a recess formed therealong, and wherein the wall contacts the recess along at least a portion thereof to secure the portion in the position.
34 . The gas generating system of claim 31 wherein the baffle member abuts the outer housing.
35 . The gas generating system of claim 31 wherein the inner housing is spaced apart from the outer housing so as to form a gas flow passage therebetween.
36 . The gas generating system of claim 35 further comprising at least one opening formed in the inner housing to enable fluid communication between an interior of the inner housing and the gas flow passage after activation of the gas generating system; and
at least one opening formed in the baffle member to enable fluid communication between an interior of the baffle member and the gas flow passage after activation of the gas generating system.
37 . The gas generating system of claim 36 wherein a portion of the flow passage extends downstream of the at least one opening formed in the baffle member in a direction of gas flow from the at least one opening formed in the inner housing, to define a cavity for receiving gases therein.
38 . The gas generating system of claim 36 further comprising at least one gas exit opening enabling fluid communication between an interior of the outer housing and an exterior of the outer housing after activation of the gas generating system.
39 . The gas generating system of claim 38 wherein the at least one gas exit opening is formed in a diffuser coupled to the outer housing.
40 . The gas generating system of claim 31 wherein the inner housing defines a combustion chamber of the gas generating system, the baffle member is positioned so as to provide fluid communication with the combustion chamber after activation of the gas generating system, and the baffle member contacts the portion of the inner housing so as to form a gas-tight seal therebetween.
41 . A vehicle occupant protection system including a gas generating system in accordance with claim 31 .
42 . A gas generating system comprising:
an outer housing; an inner housing positioned within the outer housing; and a baffle member coupled to the inner housing and the outer housing so as to secure the baffle member in a position within the outer housing.
43 . A vehicle occupant protection system including a gas generating system in accordance with claim 42 .
44 . A gas generating system comprising:
an outer housing; and a baffle member positioned within the outer housing and spaced apart from the outer housing so as to form a gas flow passage therebetween, the baffle member having at least one opening formed therein to enable fluid flow from a combustion chamber of the gas generating system into an interior of the baffle member after activation of the gas generating system, wherein a portion of the flow passage extends downstream of the at least one opening formed in the baffle member in a direction of gas flow from the combustion chamber to the at least one opening, to define a cavity for receiving gases therein.
45 . The gas generating system of claim 44 further comprising an inner housing positioned within the outer housing and contacting a portion of the inner housing to secure a portion of the inner housing in a position within the outer housing.
46 . The gas generating system of claim 45 wherein the inner housing defines a chamber and includes at least one opening formed therein to enable fluid communication between the inner housing interior and the at least one opening formed in the baffle member after activation of the gas generating system.
47 . A vehicle occupant protection system including a gas generating system in accordance with claim 44 .Join the waitlist — get patent alerts
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