Power plants – Reaction motor – Solid and fluid propellant
Patent
1991-08-05
1992-10-06
Bertsch, Richard A.
Power plants
Reaction motor
Solid and fluid propellant
60252, 60253, 602701, F02K 708, F02K 900, F02K 928
Patent
active
051521369
ABSTRACT:
A propulsion system is disclosed comprising a glycidyl azide polymer (GAP) olid fuel generator (SFGG) that produces fuel-rich hot gases which are combusted in a combustion zone of a combustion chamber of a solid fuel ducted rocket. A basic embodiment comprises an airbreathing engine wherein a ducted member scoops air in from the atmosphere for hypergolic reaction with the fuel-rich hot gases for propulsion during a sustain stage of a flight. An augmentation of the basic embodiment is achieved by combusting the fuel-rich GAP SFGG effluent with inhibited red fuming nitric acid (IRFNA) gel oxidizer to produce higher thrust during the boost and dash stages of a flight. During the high thrust stages, the air ducts of the ducted member are closed and IRFNA gel is injected into the combustion chamber to react with the fuel-rich hot gases from the GAP SFGG. The resulting higher pressure in the combustion chamber gives the missile a correspondingly greater thrust than during the lower pressure airbreathing sustain stage of flight.
REFERENCES:
patent: 3138929 (1964-06-01), Schatz
patent: 3173252 (1965-03-01), Ziegenhagen
patent: 3802192 (1974-04-01), Curran
patent: 3807169 (1974-04-01), Bradford
patent: 4050243 (1977-09-01), Holzman et al.
patent: 4391094 (1983-07-01), Engel et al.
Asaoka Leo K.
Chew William M.
Lilley Jay S.
May Douglas L.
Bertsch Richard A.
Bush Freddie M.
Nicholson Hugh P.
Richman Howard R.
The United States of America as represented by the Secretary of
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