A gas generating system usable in an inflatable vehicle occupant protection system is provided. The system includes an outer housing having an outer diameter varying within a range of approximately 16 millimeters to approximately 20 millimeters. A vehicle occupant protection system and an airbag mod
A gas generating system usable in an inflatable vehicle occupant protection system is provided. The system includes an outer housing having an outer diameter varying within a range of approximately 16 millimeters to approximately 20 millimeters. A vehicle occupant protection system and an airbag module including the gas generating system are also provided.
대표청구항▼
1. A gas generating system comprising an inner housing, an outer housing, and an end closure attached to the inner housing, the end closure having an annular wall and a first shoulder extending along an interior of the wall, wherein the inner housing is attached to the wall along the first shoulder,
1. A gas generating system comprising an inner housing, an outer housing, and an end closure attached to the inner housing, the end closure having an annular wall and a first shoulder extending along an interior of the wall, wherein the inner housing is attached to the wall along the first shoulder, wherein, a gas-tight seal is formed between the outer housing and the end closure by compressing an end portion of the outer housing onto the end closure so as to cold flow a portion of the outer housing material into a recess formed in the end closure. 2. The gas generating system of claim 1 wherein the end closure is welded to an end of the inner housing to form a gas-tight seal between the inner housing and the end closure. 3. The gas generating system of claim 1 further comprising a gas generant composition including a mixture of: a high-nitrogen fuel selected from the class consisting of 1-, 3-, and 5-substituted nonmetal salts of triazoles, and, 1- and 5-substituted nonmetal salts of tetrazoles;a first oxidizer selected from the group consisting of phase stabilized ammonium nitrate;a metallic second oxidizer; andan inert component. 4. The gas generating system of claim 1 further comprising a gas generant composition including a mixture of: a high-nitrogen fuel selected from the class consisting of 1-, 3-, 5-substituted amine salts of triazoles and 1- and 5-substituted amine salts of tetrazoles, said fuel employed in a concentration of 13 to 38% by weight of the gas generant composition;a first oxidizer consisting of phase stabilized ammonium nitrate, said first oxidizer employed in a concentration of 46 to 87% by weight of the gas generant composition;a metallic second oxidizer employed in a concentration of 0.1 to 25% by weight of the gas generant composition; andan inert component employed in a concentration of 0.1 to 8% by weight of the gas generant composition, wherein said fuel is selected from the group consisting of monoguanidinium salt of 5,5′-Bi-1H-tetrazole, diguanidinium salt of 5,5′-Bi-1H-tetrazole, monoaminoguanidinium salt of 5,5′-Bi-1H-tetrazole, diaminoguanidinium, salt of 5,5′-Bi-1H-tetrazole monohydrazinium salt of 5,5′-Bi-1H-tetrazole, dihydrazinium salt of 5,5′-Bi-1H-tetrazole, monoammonium salt of 5,5′-Bi-1H-tetrazole, diammonium salt of 5,5′-Bi-1H-tetrazole, mono-3-amino-1,2,4-triazolium salt of 5,5′-Bi-1H-tetrazole, di-3-amino-1,2,4-triazolium salt of 5,5′-Bi-1H-tetrazole, diguanidinium salt of 5,5′-Azobis-1H-tetrazole, and monoammonium salt of 5-Nitrarnino-1H-tetrazole. 5. The gas generating system of claim 1 further comprising a gas generant composition including a mixture of a high-nitrogen nonazide fuel selected from the class consisting of 1-, 3-, and 5-substituted amine salts of triazoles, and, 1- and 5-substituted amine salts of tetrazoles; and dry-mixed with an oxidizer selected from the group consisting of phase stabilized ammonium nitrate. 6. The gas generating system of claim 1 further comprising a gas generant composition including a mixture of: a high-nitrogen nonazide fuel selected from the class consisting of 1-, 3-, 5-substituted amine salts of triazoles and 1- and 5-substituted amine salts of tetrazoles, said fuel employed in a concentration of 15 to 65% by weight of the gas generant composition; andan oxidizer consisting of phase stabilized ammonium nitrate, said oxidizer employed in a concentration of 35 to 85% by weight of the gas generant composition,wherein said fuel is selected from the group consisting of monoguanidinium salt of 5,5′-Bis-1H-tetrazole, diguanidinium salt of 5,5′-Bis-1H-tetrazole, monoaminoguanidinium salt of 5,5′-Bis-1H-tetrazole, diaminoguanidinium salt of 5,5′-Bis-1H-tetrazole, monohydrazinium salt of 5,5′-Bis-1H-tetrazole, dihydrazinium salt of 5,5′-Bis-1H-tetrazole, monoammonium salt of 5,5′-Bis-1H-tetrazole, diammonium salt of 5,5′-bis-1H-tetrazole, mono-3-amino-1,2,4-triazolium salt of 5,5′-bis-1H-tetrazole, di-3-amino-1,2,4-triazolium salt of 5,5′-bis-1H-tetrazole, diguanidinium salt of 5,5′Azobis-1H-tetrazole, and monoammonium salt of 5-Nitramino-1H-tetrazole. 7. A vehicle occupant protection system comprising a gas generating system in accordance with claim 1. 8. An airbag module comprising a gas generating system in accordance with claim 1. 9. The gas generating system of claim 1 wherein the outer housing has a maximum outer diameter of approximately 20 millimeters. 10. A vehicle occupant protection system comprising a gas generating system in accordance with claim 1. 11. An airbag module comprising a gas generating system in accordance with claim 1. 12. The gas generating system of claim 1 wherein the outer housing has an outer diameter of approximately 16 millimeters along substantially its entire length. 13. The gas generating system of claim 1 further comprising a second shoulder extending along an exterior of the wall, said outer housing attached to the wall along the first shoulder, and wherein a portion of the wall is interposed between the inner and outer housings to define a spacing between the inner and outer walls. 14. A gas generating system comprising an inner housing and an end closure attached to the housing, the end closure having an annular wall and a first shoulder extending along an interior of the wall, wherein the inner housing is attached to the wall along the first shoulder, wherein the wall defines an opening in a first end of the end closure, the first end opening being configured to receive the inner housing when the inner housing is inserted therein in a first direction, and wherein the end closure further comprises a second shoulder extending along the interior of the wall and spaced apart from the first shoulder, the second shoulder and a portion of the wall adjacent the second shoulder defining a cavity configured for receiving an igniter therein when the igniter is inserted into the cavity in a second direction opposite the first direction. 15. A gas generating system comprising: an outer housing formed at least in part from a metallic material; andan end closure formed at least in part from a metallic material defining a recessed portion having a shape, the outer housing including a portion of the metallic outer housing material cold-flowed into the recessed portion of the end closure so as to conform to at least a portion of the shape of the recessed portion, such that a gas-tight metal-to-metal seal is formed between the cold-flowed portion of the housing and the end closure.
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이 특허에 인용된 특허 (14)
Williams, Graylon K.; Burns, Sean P.; Khandhadia, Paresh S., Gas generant compositions containing a silicone coating.
Green David J. (Brigham City UT) Bunker S. Mark (UT) Moore Walter A. (both Ogden UT) Pierotti L. John (Huntsville UT) Storey J. Kirk (Farmington UT) Olson Brent K. (Clearfield UT), Pressurized gas inflator for vehicle occupant protection systems.
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