Power plants – Reaction motor – Air supplied by ram effect
Reexamination Certificate
2005-11-29
2005-11-29
Kim, Ted (Department: 3746)
Power plants
Reaction motor
Air supplied by ram effect
C060S768000
Reexamination Certificate
active
06968695
ABSTRACT:
A ramjet powered device that utilizes a novel swirl generator for rapidly and efficiently atomizing, vaporizing, as necessary, and mixing a fuel into an oxidant. The swirl generator converts an oxidant flow into a turbulent, three-dimensional flowfield into which the fuel is introduced. The swirl generator effects a toroidal outer recirculation zone and an inner central recirculation zone, both of which are configured in a backward-flowing manner that carries heat and combustion byproducts upstream where they are employed to continuously ignite a combustible fuel/oxidizer mixture in adjacent shear layers and stabilizes flame propagation and accelerates combustion throughout the entire combustor. The swirl generator provides smooth combustion with no instabilities and minimum total pressure losses and enables significant reductions in the L/D ratio of the combustor. Other benefits include simplicity, reliability, wide flammability limits and high combustion efficiency and thrust performance.
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Edelman Raymond B.
Morris Donald H.
Morrison, Jr. Calvin Q.
Pederson Robert J.
Schmotolocha Stephen N.
Harness & Dickey & Pierce P.L.C.
Kim Ted
The Boeing Company
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