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A fuel injector assembly for use in a turbine engine having a combustion section and a turbine section downstream from the combustion section. The fuel injector assembly includes a flow sleeve defining a pre-mixing passage of the combustion section and including a sleeve wall having a forward end pr

A fuel injector assembly for use in a turbine engine having a combustion section and a turbine section downstream from the combustion section. The fuel injector assembly includes a flow sleeve defining a pre-mixing passage of the combustion section and including a sleeve wall having a forward end proximate to a cover plate of the combustion section and an opposed aft end. An annular cavity in fluid communication with a source of fuel is formed in the sleeve wall adjacent the aft end. A fuel dispensing structure is associated with the cavity and includes at least one fuel distribution aperture for distributing fuel from the cavity to the pre-mixing passage.

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1. A fuel injector assembly for use in a turbine engine comprising a compressor section, a combustion section, and a turbine section downstream from the combustion section, the fuel injector assembly comprising: a flow sleeve defining a pre-mixing passage of the combustion section where fuel is mixe

1. A fuel injector assembly for use in a turbine engine comprising a compressor section, a combustion section, and a turbine section downstream from the combustion section, the fuel injector assembly comprising: a flow sleeve defining a pre-mixing passage of the combustion section where fuel is mixed with air before entering a combustion chamber where the mixed fuel and air is mixed with additional fuel from at least one main fuel injector and a pilot fuel injector, the combustion chamber being defined by a liner, said flow sleeve disposed radially outward of the liner, and said pre-mixing passage being defined by said flow sleeve and the liner, said flow sleeve comprising a sleeve wall having a radially inner wall, a radially outer wall, a forward end proximate to a cover plate of the combustion section and an opposed aft end, said flow sleeve including:a cavity portion formed in said aft end of said sleeve wall between said radially inner wall and said radially outer wall and in fluid communication with a source of fuel;a fuel dispensing structure associated with said cavity portion including at least one fuel distribution aperture formed therein for distributing fuel from said cavity portion to said pre-mixing passage;a fuel feed passageway disposed between said radially inner wall and said radially outer wall and comprising an axial passage formed in said sleeve wall;a fuel tube extending through said fuel feed passageway for delivering fuel from said source of fuel to said cavity portion; anda web member coupling said radially inner wall and said radially outer wall and disposed between said fuel tube and said cavity portion, said web member including at least one aperture for delivering fuel from said fuel tube to said cavity portion. 2. The fuel injector assembly according to claim 1, wherein said cavity portion is formed in said sleeve wall adjacent to said sleeve wall aft end. 3. The fuel injector assembly according to claim 1, wherein said sleeve wall comprises an annular sleeve wall and said cavity portion comprises an annular channel defining a fuel flow passageway between said radially inner wall and said radially outer wall of said sleeve wall for conveying fuel circumferentially about said flow sleeve. 4. The fuel injector assembly according to claim 3, wherein said fuel dispensing structure includes an annular array of fuel distribution apertures formed therein for distributing fuel from said annular channel to said pre-mixing passage. 5. The fuel injector assembly according to claim 4, wherein said fuel dispensing structure comprises a cover structure adapted to cover at least a part of said cavity portion, said cover structure forming a substantially fluid tight seal with a radially inner surface of said sleeve wall at a sealed interface between said cover structure and said sleeve wall. 6. The fuel injector assembly according to claim 5, wherein said sealed interface between said cover structure and said sleeve wall is axially spaced from said cavity portion. 7. The fuel injector assembly according to claim 6, wherein said sealed interface comprises at least two mechanically affixed portions located on opposed axial sides of said cavity portion. 8. The fuel injector assembly according to claim 1, wherein said sleeve wall comprises an annular sleeve wall and said cavity portion comprises an annular channel and a thermally resistant sleeve in said annular channel, said thermally resistant sleeve defining a fuel flow passageway therein and including a fluid inlet in fluid communication with said source of fuel and at least one fluid outlet in fluid communication with said at least one fuel distribution aperture formed in said fuel dispensing structure. 9. The fuel injector assembly according to claim 8, wherein said thermally resistant sleeve includes a plurality of outwardly extending surfaces for spacing at least a portion of said thermally resistant sleeve from a surface of said annular channel. 10. The fuel injector assembly according to claim 1, wherein said flow sleeve comprises a first portion defining a first axial extent of said flow sleeve and a second portion defining a second axial extent of said flow sleeve, said second portion being mechanically affixed to said first portion, said sleeve wall comprises an annular sleeve wall, said cavity portion comprises an annular channel formed at an interface between said first portion and said second portion, and said fuel dispensing structure comprises a fuel dispensing tube captured in said annular channel. 11. A fuel injector assembly for use in a turbine engine comprising a compressor section, a combustion section, and a turbine section downstream from the combustion section, the fuel injector assembly comprising: a flow sleeve defining a pre-mixing passage of the combustion section where fuel is mixed with air before entering a combustion chamber defined by a liner, said pre-mixing passage defined radially outwardly from the combustion chamber between said flow sleeve and the liner, said flow sleeve comprising an annular sleeve wall having a radially inner wall, a radially outer wall, a forward end proximate to a cover plate of the combustion section and an opposed aft end, said flow sleeve defining a fuel feed passageway between said radially inner wall and said radially outer wall, said flow sleeve including:an annular channel formed between said radially inner wall and said radially outer wall in said sleeve wall aft end and including a thermally resistant sleeve defining a fuel flow passageway and including a fluid inlet in fluid communication with a source of fuel and at least one fluid outlet;a fuel dispensing structure associated with said flow sleeve, said fuel dispensing structure including a plurality of fuel distribution apertures formed therein in fluid communication with said at least one fluid outlet of said thermally resistant sleeve for delivering fuel radially inwardly from said fuel flow passageway to said pre-mixing passage circumferentially about said flow sleeve;an axially extending fuel tube disposed in said fuel feed passageway and delivering fuel to said fuel flow passageway; anda web member coupling said radially inner wall and said radially outer wall and disposed between said fuel tube and said annular channel, said web member including at least one aperture for delivering fuel from said fuel tube to said fuel flow passageway. 12. The fuel injector assembly according to claim 11, wherein said thermally resistant sleeve comprises a plurality of outwardly extending surfaces for spacing at least a portion of said thermally resistant sleeve from a surface of said annular channel. 13. The fuel injector assembly according to claim 11, wherein said fuel dispensing structure comprises a cover structure adapted to cover at least a portion of said annular channel, said cover structure mechanically affixed to said flow sleeve. 14. The fuel injector assembly according to claim 11, wherein said fuel feed passageway comprises an axial passage formed in said sleeve wall of said flow sleeve. 15. The fuel injector assembly according to claim 1, wherein said pre-mixing passage is located radially outwardly from the combustion chamber between the liner and said flow sleeve.