| 摘要 |
PROBLEM TO BE SOLVED: To provide an augmenter provided with a flame stabilization apparatus having superior performance characteristics. SOLUTION: A gas turbine engine augmenter 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 injecting fuel such that at least a portion of the fuel flows into the cavity through the 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 space 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. COPYRIGHT: (C)2007,JPO&INPIT
|
