An inflator assembly having an inflator body that forms a chamber wherein a quantity of a gas generating solid reacts to form gas. A quantity of gas treatment material is included to treat the formed gas to form a treated gas. At least one assembly exit opening permits the treated gas to exit the in
An inflator assembly having an inflator body that forms a chamber wherein a quantity of a gas generating solid reacts to form gas. A quantity of gas treatment material is included to treat the formed gas to form a treated gas. At least one assembly exit opening permits the treated gas to exit the inflator assembly. The required gas generating solid has a flame temperature of no more than 1670 K with the inflator assembly having significant weight and volume reductions as compared to an otherwise identical performing inflator assembly that utilizes gas generating composition having higher flame temperatures.
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1. An inflator assembly comprising: an inflator body forming a chamber wherein a quantity of a gas generating solid reacts to form gas,a quantity of gas treatment material to treat the formed gas to form a treated gas andat least one assembly exit opening to permit the treated gas to exit the inflat
1. An inflator assembly comprising: an inflator body forming a chamber wherein a quantity of a gas generating solid reacts to form gas,a quantity of gas treatment material to treat the formed gas to form a treated gas andat least one assembly exit opening to permit the treated gas to exit the inflator assembly,wherein the gas generating solid has a flame temperature of no more than 1670 K and comprises: at least one of an organic fuel, a transition metal salt of said organic fuel and a transition metal nitrate complex of said organic fuel, wherein said organic fuel comprises at least the elements carbon, hydrogen and oxygen, includes at least one functional group selected from the list of amide, imine, hydroxyl and carboxylic acids and has an oxygen-to-carbon mole ratio of at least 0.5 and an exothermic heat of formation of no less than −400 KJ/mole; the at least one organic fuel, transition metal salt of said organic fuel and transition metal nitrate complex of said organic fuel present in a relative amount of between about 5 and about 50 composition weight percent;between about 10 and about 30 composition weight percent co-fuel;between about 25 and about 70 composition weight percent of basic metal nitrate oxidizer, andbetween 0 and about 15 composition weight percent metal oxide coolant,wherein the organic fuel is free of nitro and cyano functional groups. 2. The inflator assembly of claim 1 wherein the at least one of an organic fuel, a transition metal salt of said organic fuel and a transition metal nitrate complex of said organic fuel is present in a relative amount of between about 10 and about 20 composition weight percent. 3. The inflator assembly of claim 1 wherein the gas generating solid contains between about 15 and about 20 weight percent guanidine nitrate. 4. The inflator assembly of claim 1 wherein the gas generating solid contains basic copper nitrate. 5. The inflator assembly of claim 1 wherein the basic metal nitrate oxidizer is basic copper nitrate and said basic copper nitrate is present in a relative amount of between about 30 and about 65 composition weight percent. 6. The inflator assembly of claim 1 wherein the gas generating solid comprises at least one metal oxide selected from the group consisting of cupric oxide, iron oxide and zinc oxide. 7. The inflator assembly of claim 1 wherein the organic fuel additionally comprises the element nitrogen. 8. The inflator assembly of claim 1 wherein the organic fuel is one of an amine, guanidinium and guanylurea salt of an acidic organic fuel. 9. The inflator assembly of claim 1 wherein the organic fuel is an amide selected from the group consisting of: barbituric acid, cyanuric acid, oxamide, biuret, hydantoin, allantoin, malonamide, succinamide, parabanic acid, diglycine, and imidurea. 10. The inflator assembly of claim 1 wherein the organic fuel is a hydroxy-containing compound selected from the group consisting of: phloroglucinol, mannitol, maltitol and sorbitol. 11. The inflator assembly of claim 1 wherein the organic fuel is a carboxylic acid selected from the group consisting of: glycine, malonic acid and succinic acid. 12. The inflator assembly of claim 1 wherein at least a portion of the quantity of gas treatment material is disposed within the chamber wherein a quantity of the gas generating solid reacts to form gas. 13. An inflator assembly of reduced size and weight for inflating an inflatable vehicle occupant safety restraint, the inflator assembly comprising: an inflator body forming a chamber wherein a quantity of the gas generating solid reacts to form gas,a quantity of gas treatment material to treat the formed gas to form a treated gas andat least one assembly exit opening to permit the treated gas to exit the inflator assembly and pass to an associated inflatable vehicle occupant safety restraint,wherein the gas generating solid has a flame temperature of no more than 1670 K and comprises: at least one of an organic fuel, a transition metal salt of said organic fuel and a transition metal nitrate complex of said organic fuel, wherein said organic fuel comprises at least the elements carbon, hydrogen, oxygen and nitrogen, includes at least one amide functional group and has an oxygen-to-carbon mole ratio of at least 0.5 and an exothermic heat of formation of no less than −400 KJ/mole; the at least one organic fuel, transition metal salt of said organic fuel and transition metal nitrate complex of said organic fuel present in a relative amount of between about 5 and about 50 composition weight percent;between about 10 and about 30 composition weight percent guanidine nitrate;between about 25 and about 70 composition weight percent of basic copper nitrate oxidizer, andbetween 0 and about 15 composition weight percent metal oxide coolant selected from the group consisting of cupric oxide, iron oxide and zinc oxide,wherein the organic fuel is free of nitro and cyano functional groups. 14. The inflator assembly of claim 13 wherein: the at least one organic fuel, transition metal salt of said organic fuel and transition metal nitrate complex of said organic fuel is present in a relative amount of between about 10 and about 20 composition weight percent;the guanidine nitrate is present in a relative amount of between about 15 and about 20 composition weight percent guanidine nitrate; andthe basic copper nitrate oxidizer is present in a relative amount of between about 30 and about 65 composition weight percent. 15. The inflator assembly of claim 13 wherein: the organic fuel is an amide selected from the group consisting of:barbituric acid, cyanuric acid, oxamide, biuret, hydantoin, allantoin, malonamide, succinamide, parabanic acid, diglycine, and imidurea. 16. The inflator assembly of claim 13 wherein at least a portion of the quantity of gas treatment material is disposed within the chamber wherein a quantity of the gas generating solid reacts to form gas. 17. An inflator assembly comprising: an inflator body forming a chamber wherein a quantity of a gas generating solid reacts to form gas,a quantity of gas treatment material to treat the formed gas to form a treated gas andat least one assembly exit opening to permit the treated gas to exit the inflator assembly,wherein the gas generating solid has a flame temperature of no more than 1670 K and comprises: at least one of an organic fuel, a transition metal salt of said organic fuel and a transition metal nitrate complex of said organic fuel, wherein said organic fuel comprises at least the elements carbon, hydrogen and oxygen, includes at least one functional group selected from the list of amide, imine, hydroxyl and carboxylic acids and has an oxygen-to-carbon mole ratio of at least 0.5 and an exothermic heat of formation of no less than −400 KJ/mole; the at least one organic fuel, transition metal salt of said organic fuel and transition metal nitrate complex of said organic fuel present in a relative amount of between about 5 and about 50 composition weight percent;between about 10 and about 30 composition weight percent co-fuel;between about 25 and about 70 composition weight percent of basic metal nitrate oxidizer, andbetween 0 and about 15 composition weight percent metal oxide coolant,wherein the organic fuel is an amide selected from the group consisting of: barbituric acid, cyanuric acid, oxamide, biuret, hydantoin, allantoin, malonamide, succinamide, parabanic acid, diglycine, and imidurea. 18. The inflator assembly of claim 17 wherein the at least one of an organic fuel, a transition metal salt of said organic fuel and a transition metal nitrate complex of said organic fuel is present in a relative amount of between about 10 and about 20 composition weight percent. 19. The inflator assembly of claim 17 wherein the gas generating solid contains between about 15 and about 20 weight percent guanidine nitrate. 20. The inflator assembly of claim 17 wherein the gas generating solid contains basic copper nitrate. 21. The inflator assembly of claim 17 wherein the basic metal nitrate oxidizer is basic copper nitrate and said basic copper nitrate is present in a relative amount of between about 30 and about 65 composition weight percent. 22. The inflator assembly of claim 17 wherein the gas generating solid comprises at least one metal oxide selected from the group consisting of cupric oxide, iron oxide and zinc oxide. 23. The inflator assembly of claim 17 wherein at least a portion of the quantity of gas treatment material is disposed within the chamber wherein a quantity of the gas generating solid reacts to form gas. 24. An inflator assembly of reduced size and weight for inflating an inflatable vehicle occupant safety restraint, the inflator assembly comprising: an inflator body forming a chamber wherein a quantity of the gas generating solid reacts to form gas,a quantity of gas treatment material to treat the formed gas to form a treated gas andat least one assembly exit opening to permit the treated gas to exit the inflator assembly and pass to an associated inflatable vehicle occupant safety restraint,wherein the gas generating solid has a flame temperature of no more than 1670 K and comprises: at least one of an organic fuel, a transition metal salt of said organic fuel and a transition metal nitrate complex of said organic fuel, wherein said organic fuel comprises at least the elements carbon, hydrogen, oxygen and nitrogen, includes at least one amide functional group and has an oxygen-to-carbon mole ratio of at least 0.5 and an exothermic heat of formation of no less than −400 KJ/mole; the at least one organic fuel, transition metal salt of said organic fuel and transition metal nitrate complex of said organic fuel present in a relative amount of between about 5 and about 50 composition weight percent;between about 10 and about 30 composition weight percent guanidine nitrate;between about 25 and about 70 composition weight percent of basic copper nitrate oxidizer, andbetween 0 and about 15 composition weight percent metal oxide coolant selected from the group consisting of cupric oxide, iron oxide and zinc oxide,wherein the organic fuel is an amide selected from the group consisting of barbituric acid, cyanuric acid, oxamide, biuret, hydantoin, allantoin, malonamide, succinamide, parabanic acid, diglycine, and imidurea. 25. The inflator assembly of claim 24 wherein: the at least one organic fuel, transition metal salt of said organic fuel and transition metal nitrate complex of said organic fuel is present in a relative amount of between about 10 and about 20 composition weight percent;the guanidine nitrate is present in a relative amount of between about 15 and about 20 composition weight percent guanidine nitrate; andthe basic copper nitrate oxidizer is present in a relative amount of between about 30 and about 65 composition weight percent. 26. The inflator assembly of claim 24 wherein at least a portion of the quantity of gas treatment material is disposed within the chamber wherein a quantity of the gas generating solid reacts to form gas.
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이 특허에 인용된 특허 (9)
Blomquist Harold R., Cool burning ammonium nitrate based gas generating composition.
Blomquist, Harold R.; Helmy, Abdelkader M.; Sampson, William P.; Mangum, Michael G., Cool burning gas generating material for a vehicle occupant protection apparatus.
Knowlton, Gregory D.; Ludwig, Christopher P.; Deppert, Thomas M.; McFadden, Dan; Dupont, James; Salafia, Christian, Low solids gas generant having a low flame temperature.
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