F - Mech Eng,Light,Heat,Weapons – 23 – R
Patent
F - Mech Eng,Light,Heat,Weapons
23
R
F23R 3/20 (2006.01) F02K 3/10 (2006.01) F23R 3/06 (2006.01) F23R 3/12 (2006.01) F23R 3/28 (2006.01)
Patent
CA 2567533
A gas turbine engine augmentor (34) includes an externally fueled annular trapped vortex cavity (50) having a cavity opening (142) open to an exhaust flowpath (128) and a sole source of fuel (75) located upstream of the trapped vortex cavity (50) and being operable for injecting fuel (75) into the exhaust flowpath (128) such that at least a portion of the fuel (75) flows into the cavity (50) through a cavity opening (142). An exemplary sole source of fuel (75) includes fuel holes (153) in fuel tubes (51) within spray bars (53 and/or 59) operable for injecting the fuel (75) through heat shield openings (166) in heat shields (54 and/or 204) surrounding the tubes (51) wherein the fuel holes (153) are located in a radially outermost portion (158) of the exhaust flowpath (128). The sole source of fuel (75) may include circumferentially spaced apart radial spray bars (53) and/or integral spray bars (59) integral with radial flameholders (52) and extending radially inwardly into the exhaust flowpath (128) wherein the radial flameholders (52) and radial spray bars (53) are interdigitated.
Company General Electric
Craig Wilson And Company
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