Combustion method and apparatus for carrying out same

Details Combustion method and apparatus for carrying out same Combustion method and apparatus for carrying out same

2006-08-08

2006-08-08

Cocks, Josiah C. (Department: 3749)

Combustion

Combustion products return structure

Recirculation about mixing or combustion chamber wall or baffle

C431S009000, C060S750000

Reexamination Certificate

active

07086854

ABSTRACT:
The invention relates to recirculation flow combustors having a generally curved recirculation chamber and unobstructed flow along the periphery of the boundary layer of the vortex flow in this chamber, and methods of operating such combustors. Such combustors further have a border interface area of low turbulence between the vortex flow and the main flow in the combustor, in which chemical reactions take place which are highly advantageous to the combustion process, and which promote a thermal nozzle effect within the combustor. A combustor of this type may be used for burning lean and super-lean fuel and air mixtures for use in gas turbine engines, jet and rocket engines and thermal plants such as boilers, heat exchanges plants, chemical reactors, and the like. The apparatus and methods of the invention may also be operated under conditions that favor fuel reformation rather than combustion, where such a reaction is desired.

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W. M. Roquemore et al., “Role of Flow Visualization in the Development of Unicorn,” International Conference on Optical Technology and Image Processing in Fluid, Thermal, and Combustion Flow, Dec. 6-9, 1998, Yokohama, Japan.

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