Hypergolic fuel formulation: diethylethanolamine, triethylamine,

Details Hypergolic fuel formulation: diethylethanolamine, triethylamine, Hypergolic fuel formulation: diethylethanolamine, triethylamine,

1996-09-11

1997-04-15

Jordan, Charles T.

Fuel and related compositions

Solidified liquid

Liquid alkanol base

44265, 44280, 60211, C10L 702, C10L 704

Patent

active

056211562

ABSTRACT:
A hypergolic fuel formulation which is consistently hypergolic with inhibd red fuming nitric acid is comprised of diethylethanolamine from about 44-72 weight percent, triethylamine from about 11-18 weight percent, and carbon from about 45-10 weight percent The formulation can be gelled with: silica, clays, carbons, or swellable polymers. The gellants can be combined with chemical agents that stabilize the gel under the standard 30 minute, 500 g centrifuge stability test. A preferred combination comprising diethylethanolamine in an amount of about 44 weight percent, triethylamine in an amount of about 11 weight percent, and carbon in an amount of about 45 weight percent when tested at an oxidizer/fuel ratio of about 4.25 reveals theoretical performance values of specific impulse (ISP) of about 250 at a chamber pressure of 1000 Psi and a density specific impulse (D* ISP) of about 350. The performance values of ISP and D*ISP when the specified combination is tested at the same oxidizer/fuel ratio and at a chamber pressure of 2000 Psi reveals are about 265 and about 372, respectively.

REFERENCES:
patent: 4081252 (1978-03-01), Osborg
patent: 4316359 (1982-02-01), Sayles
patent: 4872885 (1989-10-01), Tsubakimoto et al.

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