Power plants – Combustion products used as motive fluid – Process
Reexamination Certificate
2006-01-12
2008-12-23
Cuff, Michael (Department: 3741)
Power plants
Combustion products used as motive fluid
Process
C060S766000
Reexamination Certificate
active
07467518
ABSTRACT:
A gas turbine engine augmentor includes an externally fueled annular trapped vortex cavity having a cavity opening open to an exhaust flowpath and a sole source of fuel located upstream of the trapped vortex cavity and being operable for injecting fuel into the exhaust flowpath such that at least a portion of the fuel flows into the cavity through a cavity opening. An exemplary sole source of fuel includes fuel holes in fuel tubes within spray bars operable for injecting the fuel through heat shield openings in heat shields surrounding the tubes wherein the fuel holes are located in a radially outermost portion of the exhaust flowpath. The sole source of fuel may include circumferentially spaced apart radial spray bars and/or integral spray bars integral with radial flameholders and extending radially inwardly into the exhaust flowpath wherein the radial flameholders and radial spray bars are interdigitated.
REFERENCES:
patent: 5791148 (1998-08-01), Burrus
patent: 5813221 (1998-09-01), Geiser et al.
patent: 5857339 (1999-01-01), Roquemore et al.
patent: 6286298 (2001-09-01), Burrus et al.
patent: 6295801 (2001-10-01), Burrus et al.
patent: 6481209 (2002-11-01), Johnson et al.
patent: 6668541 (2003-12-01), Rice et al.
patent: 6735949 (2004-05-01), Haynes et al.
patent: 7225623 (2007-06-01), Koshoffer
patent: 2002/0112482 (2002-08-01), Johnson et al.
patent: 2004/0216444 (2004-11-01), Lovett
AIAA 95-0810, “Performance of a Trapped-Vortex Combustor”, 33rd Aerospace Sciences Meeting and Exhibit, Jan. 9-12, 1995 / Reno, NV, 15 pages.
U.S. Appl. No. 10/215,477, filed Aug. 5, 2002, “Augmenter With Trapped Vortex Flame Stabilizer”.
U.S. Appl. No. 11/089,614, filed Mar. 25, 2005, “Augmenter Swirler Pilot”.
U.S. Appl. No. 11/098,723, filed Apr. 4, 2005, “Air/Fuel Jet Stabilizers For Augmenter”.
U.S. Appl. No. 11/209,918, filed Aug. 23, 2005, “Trapped Vortex Cavity Afterburner”.
Cuff Michael
General Electric Company
Rosen Steven J.
William Scott Andes
Wongwian Phutthiwat
LandOfFree
Externally fueled trapped vortex cavity augmentor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Externally fueled trapped vortex cavity augmentor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Externally fueled trapped vortex cavity augmentor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4030665