[특허]Gas generating system

Automotive Systems Laboratory, Inc.

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Gas generating system

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60R-021/26
미국특허분류(USC)	280/736; 280/741; 102/530; 102/531
출원번호	US-0108559 (2005-04-18)
등록번호	US-7367584 (2008-05-06)
발명자 / 주소	Blackburn,Jeffery S.
출원인 / 주소	Automotive Systems Laboratory, Inc.
대리인 / 주소	L.C. Begin & Associates, PLLC.
인용정보	피인용 횟수 : 8 인용 특허 : 86

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A gas generator (10) includes an igniter (27) and first and second inflation gas generant compositions (52, 52') positioned to enable fluid communication with the igniter (27) upon activation of the igniter. Flow regulators (54, 54') are provided to regulate a flow of combustion products from the igniter (27) to the first and second inflation gas generant compositions (52, 52'), to correspondingly regulate a time period between activation of the igniter (27) and initiation of combustion of the first and second inflation gas generant compositions (52, 52'). In another aspect, the gas generator (10) includes a modular baffle system (70) including a first baffle chamber (71) in fluid communication with an inflation gas generant combustion chamber (50) for receiving therein combustion products from combustion of an inflation gas generant (52) positioned in the combustion chamber. An outer baffle chamber (74) is also positioned radially outwardly from the first baffle chamber (71) for receiving therein combustion products from the first baffle chamber. In yet another aspect, the gas generator includes a first enclosure (12), a second enclosure (24), and a projection (44) formed on one of the first enclosure and the second enclosure. An aperture (46) is formed in the other one of the first enclosure (12) and the second enclosure (24) for receiving the projection (44) therein. At least a portion of the projection (44) is fixed within the aperture (46) to prevent withdrawal of the projection (44) from the aperture (46), thereby securing together the first enclosure (12) and the second enclosure (24).

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I claim: 1. A gas generating system comprising: a baffle system including a first baffle chamber in fluid communication with a separate inflation gas generant combustion chamber for receiving therein combustion products from combustion of an inflation gas generant positioned in the combustion chamber; and an outer baffle chamber positioned radially outwardly from the first baffle chamber for receiving therein combustion products from the first baffle chamber, and a second baffle chamber positioned radially inwardly of the outer baffle chanter for receiving therein combustion products from the outer baffle chamber. 2. The gas generating system of claim 1 further comprising an enclosure defining the inflation gas generant combustion chamber, and at least one orifice formed in the enclosure for regulating a flow of combustion products from the inflation gas generant combustion chamber into the first baffle chamber. 3. A gas generating system comprising: a modular baffle assembly including: an enclosure; and a plurality of discrete baffle elements positioned within the enclosure, each baffle element of the plurality of baffle elements being spaced apart from a wall of the enclosure to define a flow passage for an inflation fluid between each baffle element of the plurality of baffle elements and the wall, a first baffle element of the plurality of baffle elements defining a first baffle chamber, the first baffle chamber being in fluid communication with the flow passage, a second baffle element of the plurality of baffle elements defining a second baffle chamber, the second baffle chamber being in fluid communication with the flow passage, at least one of the first and second baffle chambers being positioned so as to enable fluid communication with an enclosure containing an inflation gas generant composition upon activation of the gas generating system. 4. The gas generating system of claim 3 wherein the first baffle element is positioned adjacent the second baffle element. 5. The gas generating system of claim 3 further comprising a barrier for substantially preventing direct fluid communication between the first baffle chamber and the second baffle chamber. 6. The gas generating system of claim 3 wherein the first baffle element is adapted for channeling flow of an inflation fluid from the first baffle chamber into the flow passage, and the flow passage is adapted for channeling flow of the inflation fluid from the first baffle chamber into the second baffle chamber. 7. The gas generating system of claim 6 wherein the second baffle element is adapted for channeling flow of the inflation fluid from the second baffle chamber to an exterior of the gas generating system. 8. The gas generating system at claim 6 wherein a third baffle element of the plurality of baffle elements defines a third baffle chamber, the third baffle chamber being in fluid communication with the second baffle chamber, and wherein the second baffle element is adapted for channeling flow of an inflation fluid from the second baffle chamber into the third baffle chamber. 9. The gas generating system of claim 8 wherein a fourth baffle element of the plurality of baffle elements defines a fourth baffle chamber, the fourth baffle chamber being in fluid communication with the flow passage, the third baffle chamber being in fluid communication with the flow passage, the flow passage being adapted for channeling flow of an inflation fluid from the third baffle chamber into the fourth baffle chamber. 10. The gas generating system of claim 3 wherein at least one of the first baffle element and the second baffle element includes a base portion and a wall extending from the base portion, the base portion and the wall defining a respective baffle chamber. 11. A gas generating system comprising a gas generator including: a first enclosure; a second enclosure; a projection formed on one of the first enclosure and the second enclosure; and an aperture formed in the other one of the first enclosure and the second enclosure for receiving the projection therein, at least a portion of the projection being fixed within the aperture to prevent withdrawal of the projection from the aperture, thereby securing together the first enclosure and the second enclosure, the first enclosure comprising an igniter assembly and the second enclosure defining a combustion chamber for an inflation gas generating composition, the second enclosure being positioned so as to enable fluid communication with the first enclosure upon activation of the gas generator, and wherein the projection is formed on the second enclosure and an orifice is formed in the second enclosure extending through the projection to regulate the flow of a fluid between the first enclosure and the second enclosure. 12. A gas generating system comprising a gas generator including: a first enclosure; a second enclosure: a projection formed on one of the first enclosure and the second enclosure; and an aperture formed in the other one of the first enclosure and the second enclosure for receiving the projection therein, at least a portion of the projection being fixed within the aperture to prevent withdrawal of the projection from the aperture, thereby securing together the first enclosure and the second enclosure; and wherein the aperture end at least a portion of the projection are dimensioned such that an interference fit is formed between the projection and the aperture when the projection is received within the aperture, to prevent withdrawal of the projection from the aperture.

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Gas generating system

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Gas generating system

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이 특허에 인용된 특허 (86)

이 특허를 인용한 특허 피인용횟수: 8

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