Liquid bipropellant system using aqueous hydroxylammonium perchlorate oxidizer

Claim 2

The improved method of claim 1 wherein said oxidizer component further includes a stabilizer.

Claim 3

The improved method of claim 1 wherein said compatible liquid fuel is diesel fuel.

Claim 4

The improved method of claim 1 wherein said compatible liquid fuel comprises a dinitrate ester selected from the group consisting of dinitroxyethane, dinitroxypropane, dinitroxybutane, dinitroxypentane and mixtures thereof.

Claim 5

The improved method of claim 2 wherein said oxidizer component is from about 80 to about 90 percent by weight hydroxylammonium perchlorate.

Claim 6

The improved method of claim 6 wherein said oxidizer component is about 82.5 percent by weight hydroxylammonium perchlorate.

Claim 7

In a method of propulsion wherein a bipropellant system of a liquid fuel and a liquid oxidizer are fed into a combustion chamber, the improvement which comprises utilizing a bipropellant system comprising: (1) a concentrated aqueous solution of a mixture of hydroxylammonium perchlorate and a water soluble compound selected from the group consisting of ammonium perchlorate, a perchlorate of an organic amine, a metal perchlorate and perchloric acid; and (2) a compatible liquid fuel.

Claim 8

The improved method of claim 8 wherein said perchlorate of an organic amine is selected from the group consisting of methylammonium perchlorate, ethylenediammonium diperchlorate, tetramethylammonium perchlorate, methyl hydroxylamine perchlorate and ethyl hydroxylamine perchlorate.

Claim 9

The improved method of claim 1 wherein the amount of said oxidizer varies from about 50 percent to about 95 percent and the amount of fuel varies from about 50 percent to about 5 percent; wherein the percent is a weight percentage based upon the total weight of fuel and oxidizer.

Claim 10

The improved method of claim 1 wherein said compatible liquid fuel is a compound selected from the group consisting of polyhydric alcohols and monohydric alcohols.

Claim 11

The improved method of claim 1 wherein said compatible fuel is a compound selected from the group consisting of glycerin, ethylene glycol, diethylene glycol, triethylene glycol, tetramethylene glycol, ethylene glycol monoethyl ether, propylene glycol, dipropylene glycol, dimethoxytetraethylene glycol, diethylene glycol monomethyl ether, methanol, ethanol, propanol, butanol, benzylalcohol, dimethyl ether, diethyl ether, dioxane, acetone, methyl butyl ketone, acetonitrile, dimethylsulfoxide, dimethylsulfone, diethylsulfone, tetrahydrothiophene-1, 1-dioxide, ethyl amine, ethanolamine, hydroxylamine, methyl hydroxylamine, ethylhydroxylamine, benzene, and hydrazine.

Claim 12

The improve method of claim 12 wherein said oxidizer is present in an amount from about 50 percent to about 95 percent by weight based on the total weight of fuel and oxidizer, and the fuel is present is an amount of from about 50 percent to about 5 percent by weight based on the total weight of fuel and oxidizer.

Claim 13

The improved method of claim 2, wherein said oxidizer is present in an amount from about 50 percent to about 95 percent by weight based on the total weight of fuel and oxidizer; and the fuel is present in an amount of from about 50 percent to about 5 percent by weight based on the total weight of fuel and oxidizer.

Claim 14

The improved method of claim 3, wherein said oxidizer is present in an amount from about 50 percent to about 95 percent by weight based on the total weight of fuel and oxidizer, and the fuel is present in an amount of from about 50 percent to about 5 percent by weight based on the total weight of fuel and oxidizer.

Claim 15

The improved method of claim 4, wherein said oxidizer is present in an amount from about 50 percent to about 95 percent by weight based on the total weight of fuel and oxidizer, and the fuel is present in an amount of from about 50 percent to about 5 percent by weight based on the total weight of fuel and oxidizer.

Claim 16

The improved method of claim 5, wherein said oxidizer is present in an amount from about 50 percent to about 95 percent by weight based on the total weight of fuel and oxidizer, and the fuel is present in an amount of from about 50 percent to about 5 percent by weight based on the total weight of fuel and oxidizer.

Claim 17

The improved method of claim 11, wherein said oxidizer is present in an amount from about 50 percent to about 95 percent by weight based on the total weight of fuel and oxidizer, and the fuel is present in an amount of from about 50 percent to about 5 percent by weight based on the total weight of fuel and oxidizer.

Claim 18

The improved method of claim 6, wherein said oxidizer is present in an amount from about 50 percent to about 95 percent by weight based on the total weight of fuel and oxidizer, and fuel is present in an amount of from about 50 percent to about 5 percent by weight based on the total weight of fuel and oxidizer.

Claim 19

The improved method of claim 7, wherein said oxidizer is present in an amount from about 50 percent to about 95 percent by weight based on the total weight of fuel and oxidizer, and the fuel is present in an amount of from about 50 percent to about 5 percent by weight based on the total weight of fuel and oxidizer.

Claim 20

The improved method of claim 8 wherein said water soluble compound is present in an amount up to about 50 percent by weight based upon the total weight of said water soluble compound and said hydroxylammonium perchlorate.

Claim 21

The improved method of claim 3 wherein said stabilizer is selectEd from the group consisting of ethylenediaminetetracetic acid and salts thereof.

Claim 22

The improved method of claim 22 wherein said stabilizer is ethylenediaminetetracetic acid.