Explosive and thermic compositions or charges – Containing liquefied gaseous fuel or liquefied oxygen...
Patent
1998-04-20
2000-01-11
Miller, Edward A.
Explosive and thermic compositions or charges
Containing liquefied gaseous fuel or liquefied oxygen...
149 17, 149 45, 149 74, 1491094, 60211, C06B 4700
Patent
active
060131438
ABSTRACT:
Inhibited Red Fuming Nitric Acid (IRFNA) type IIIB and monomethyl hydrazine (MMH) ignite when contacted with each other because of a hypergolic chemical reaction and are the preferred oxidizer and fuel for bipropellant rocket propulsion systems. These propellants can deliver a specific impulse of 284 lbf sec/Ibm and density impulse of 13.36 lbf sec/cubic inch when the engine operating pressure is 2000 psi. Special precautions must be used when handling because of its toxic properties. A fuel gel propellant fuel that would be a suitable replacement for MMH must be less toxic and have a competitive density impulse for the same engine operating conditions. Three compounds meeting the specified requirements have been synthesized and their physical and ballistic properties are evaluated herein as shown in Table 1. The chemical names for these compounds are dimethylaminoethylazide (DMAZ), pyrollidinylethylazide (PYAZ), and bis (ethyl azide)methylamine (BAZ). DMAZ under the same operating conditions can deliver a specific impulse of 287 lbf sec/Ibm and a density impulse of 13.8 lbf sec/cubic inch.
REFERENCES:
patent: 4012384 (1977-03-01), Nielsen
patent: 4499723 (1985-02-01), Frankel et al.
patent: 5133183 (1992-07-01), Asaoka et al.
patent: 5152136 (1992-10-01), Chew et al.
patent: 5621156 (1997-04-01), Thompson
Golding et al., Chem. Abs., 107, ab #(97467) ind. Reg. No. 98137-85-0, 19 7.
Lei et al., Chem. Abs., 117, ab. # 26660 ind. Reg. No. 86147-04-8, 1992.
Bush Freddie M.
Miller Edward A.
The United States of America as represented by the Secretary of
Tischer Arthur H.
LandOfFree
Tertiary amine azides in hypergolic liquid or gel fuels propella does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tertiary amine azides in hypergolic liquid or gel fuels propella, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tertiary amine azides in hypergolic liquid or gel fuels propella will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1458996