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Systems and methods for preventing flashback in a combustor assembly

United States Patent

9,303,874
April 5, 2016
View the Complete Patent at the US Patent & Trademark Office
Embodiments of the present application include a combustor assembly. The combustor assembly may include a combustion chamber, a first plenum, a second plenum, and one or more elongate air/fuel premixing injection tubes. Each of the elongate air/fuel premixing injection tubes may include a first length at least partially disposed within the first plenum and configured to receive a first fluid from the first plenum. Moreover, each of the elongate air/fuel premixing injection tubes may include a second length disposed downstream of the first length and at least partially disposed within the second plenum. The second length may be formed of a porous wall configured to allow a second fluid from the second plenum to enter the second length and create a boundary layer about the porous wall.
Johnson; Thomas Edward (Greenville, SC), Ziminsky; Willy Steve (Greenville, SC), Stevenson; Christian Xavier (Greenville, SC)
General Electric Company (Schenectady, NY)
13/ 423,854
20130239581
March 19, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under contract number DE-FC26-05NT42643 awarded by the Department of Energy. The Government has certain rights in this invention.