Gas generator fuel composition
First Claim
1. Propellant for gas generators, comprising (A) nitroguanidine as a fuel, stabilized with 0.1 to 0.5 percent by weight nitroguanidinium hydrogen sulfate and nitroguanidinium nitrate, (B) an oxidizing agent selected from the group consisting of alkali metal and alkaline earth metal nitrates, -chlorates and -perchlorates, ammonium nitrate and -perchlorate, oxidizing copper compounds and mixtures thereof, (C) a stabilizer selected from the group consisting of inorganic and organic acids and mixtures thereof, optionally (D) a burn-up stabilizer or moderator, respectively, and slag former or slag trap, respectively, and mixtures thereof.
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Abstract
The invention relates to solid gas generator fuel compositions (gas producing mixtures), comprising: (A) nitroguanidine or nitroguanidine stabilised with 0.1 to 0.5% nitroguanidinium hydrogen sulphate and nitroguanidinium nitrate as fuel; (B) an oxidising agent selected from the group comprising alkali and earth alkali nitrates, chlorates and perchlorates, ammonium nitrate and perchlorate, copper compounds with oxidising properties and mixtures thereof; (C) a stabiliser selected from the group comprising hydrophobic SiO2, inorganic and organic acids and mixtures thereof; and optionally (D) a combustion stabiliser or moderator and ash former or trap and mixtures thereof. The above gas generator fuel compositions comprise an improved shelf-life under hot storage conditions at 110° C.
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Citations
21 Claims
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1. Propellant for gas generators, comprising
(A) nitroguanidine as a fuel, stabilized with 0.1 to 0.5 percent by weight nitroguanidinium hydrogen sulfate and nitroguanidinium nitrate, (B) an oxidizing agent selected from the group consisting of alkali metal and alkaline earth metal nitrates, -chlorates and -perchlorates, ammonium nitrate and -perchlorate, oxidizing copper compounds and mixtures thereof, (C) a stabilizer selected from the group consisting of inorganic and organic acids and mixtures thereof, optionally (D) a burn-up stabilizer or moderator, respectively, and slag former or slag trap, respectively, and mixtures thereof.
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2. Propellant for gas generators, comprising
(A) nitroguanidine as a fuel, (B) an oxidizing agent selected from the group consisting of alkali metal and alkaline earth metal nitrates, -chlorates and -perchlorates, ammonium nitrate and -perchlorate, oxidizing copper compounds and mixtures thereof, (C) boric acid as a stabilizer, optionally (D) a burn-up stabilizer or moderator, respectively, and slag former or slag trap, respectively, and mixtures thereof.
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16. Propellant for gas generators comprising
(A) nitroguanidine stabilized with 0.1 to 0.5% nitroguanidinium hydrogen sulfate and nitroguaninidinium nitrate as a fuel, (B) Sr(NO3)2 or a mixture of KNO3 or NaNO3 with NH4ClO4 as oxidizing agent, an optionally (D) at least one burn-up stabilizer/moderator and slag former/slag trap.
Specification