Power plants – Reaction motor – Solid propellant
Patent
1987-06-05
1989-02-28
Casaregola, Louis J.
Power plants
Reaction motor
Solid propellant
60245, 602701, F02K 928, F02K 900
Patent
active
048074357
ABSTRACT:
A rocket engine according to the invention has a body generally extending along an axis and adapted to move through the air in a predetermined axial back-to-front direction. This body is formed with axially spaced front and rear fuel-containing combustion chambers. A nozzle centered on the axis and extending axially backward in the body from the front chamber has a rear nozzle end directed axially backward so that gases generated in the front chamber by combustion of the fuel therein form a fan-shaped jet extending axially backward from the rear nozzle end. The injector of this invention comprises a front tube centered on the axis, having an upstream end sealed to the nozzle upstream of the rear nozzle end, and having a rear downstream end formed with an outside bevel and located axially downstream of the jet formed by the nozzle, and a rear tube secured to and coaxial with the front tube, radially surrounding same and forming therewith an annular gap open axially upstream, and having an upstream end formed with a bevel and positioned axially forward of the rear nozzle end. A diffuser is provided in or on the body for deflecting outside air axially back into the gap.
REFERENCES:
patent: 2999672 (1961-09-01), Harshman
patent: 3044255 (1962-07-01), Precoul
patent: 3221497 (1962-06-01), Forbes
patent: 3514956 (1970-06-01), Bray
patent: 3535881 (1970-10-01), Schubert
patent: 3807169 (1974-04-01), Bradford
patent: 4063415 (1977-12-01), Rhoades
patent: 4483139 (1984-11-01), Engl
Casaregola Louis J.
Rheinmetall GmbH
Thorpe Timothy S.
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