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Hypergolic liquid or gel fuel mixtures

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Title: Hypergolic liquid or gel fuel mixtures.
Abstract: Hypergolic liquid or gel fuel mixtures utilized in bipropellant propulsion systems are disclosed as replacements for fuels containing toxic mono-methylhydrazine. The fuel mixtures include one or more amine azides mixed with one or more tertiary diamine, tri-amine or tetra-amine compounds. The fuel mixtures include N,N,N′,N′-tetramethylethylenediamine (TMEDA) mixed with 2-N,N-dimethylaminoethylazide (DMAZ), TMEDA mixed with tris(2-azidoethyl)amine (TAEA), and TMEDA mixed with one or more cyclic amine azides. Each hypergolic fuel mixture provides a reduced ignition delay for combining with an oxidant in fuel propellant systems. The fuel mixtures have advantages in reduced ignition delay times compared to ignition delay times for each unmixed component, providing a synergistic effect which was not predictable from review of each component's composition. Additional fuel mixtures include various tertiary diamine, tertiary tri-amine or tetra-amine compounds combined with one or more amine azides or imidic amide compounds, to provide clean burning, high performing, and non-toxic fuels. ...


- Redstone Arsenal, AL, US
Inventors: William H. Stevenson, III, LaShanda D. Felton, Zhu Slocum-Wang
USPTO Applicaton #: #20080127551 - Class: 44320 (USPTO) -


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The Patent Description & Claims data below is from USPTO Patent Application 20080127551, Hypergolic liquid or gel fuel mixtures.

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stats Patent Info
Application #
US 20080127551 A1
Publish Date
06/05/2008
Document #
11564990
File Date
11/30/2006
USPTO Class
44320
Other USPTO Classes
44327
International Class
10L1/226
Drawings
8


Bipropellant
Hydrazine
Ignition Delay
Tetra-


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