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Multi-ported, internally recuperated burners for direct flame impingement heating applications

United States Patent

7,766,649
August 3, 2010
View the Complete Patent at the US Patent & Trademark Office
A direct flame impingement method and apparatus employing at least one multi-ported, internally recuperated burner. The burner includes an innermost coaxial conduit having a first fluid inlet end and a first fluid outlet end, an outermost coaxial conduit disposed around the innermost coaxial conduit and having a combustion products outlet end proximate the first fluid inlet end of the innermost coaxial conduit and a combustion products inlet end proximate the first fluid outlet end of the innermost coaxial conduit, and a coaxial intermediate conduit disposed between the innermost coaxial conduit and the outermost coaxial conduit, whereby a second fluid annular region is formed between the innermost coaxial conduit and the intermediate coaxial conduit and a combustion products annular region is formed between the intermediate coaxial conduit and the outermost coaxial conduit. The intermediate coaxial conduit has a second fluid inlet end proximate the first fluid inlet end of the innermost coaxial conduit and a second fluid outlet end proximate the combustion products inlet end of the outermost coaxial conduit.
Abbasi; Hamid A. (Naperville, IL), Kurek; Harry (Dyer, IN), Chudnovsky; Yaroslav (Skokie, IL), Lisienko; Vladimir G. (Ekaterinburg, RU), Malikov; German K. (Ekaterinburg, RU)
Gas Technology Institute (Des Plaines, IL)
11/ 073,950
20060199119
March 7, 2005
The U.S. Government has a paid-up license in this invention and the right under limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of Contract No. DE-FC07-01ID14043 awarded by the U.S. Department of Energy.