Turbine engine having a combustion section
A turbine engine has a compression section, a combustion section, a turbine section in serial flow arrangement and defining a working airflow path. The combustion section has a circumferential casing, a combustor, and a fuel nozzle. The circumferential casing defines an interior. The turbine engine includes a deswirler assembly. The deswirler assembly couples the working airflow path of the compression section to the interior. The turbine engine includes a fuel supply system.
1 . A turbine engine comprising:
a compression section, a combustion section, and a turbine section in serial flow arrangement and defining a working airflow path, the combustion section having a centerline and comprising:
a circumferential casing defining an interior;
a combustor having an annular liner located within the interior, the combustor having a combustion chamber; and
a fuel nozzle opening to the combustion chamber;
a deswirler assembly fluidly coupling the working airflow path of the compression section to the interior, the deswirler assembly comprising a set of walls and a set of channels formed between adjacent walls of the set of walls, with at least one wall of the set of walls defining a fuel channel; and
a fuel supply system located within the combustion section and configured to supply a flow of gaseous hydrogen-containing fuel to the combustion chamber, the fuel supply system comprising the fuel channel and at least one fuel line branch, the at least one fuel line branch fluidly coupled to and extending within the interior between the fuel channel and the fuel nozzle.
2 . The turbine engine of claim 1 , wherein the deswirler assembly comprises a deswirler and a diffuser.
3 . The turbine engine of claim 2 , wherein the diffuser comprises a set of diffuser walls and a set of diffuser channels, with at least a portion of the set of walls being provided within the set of diffuser walls.
4 . The turbine engine of claim 2 , wherein the deswirler comprises a set of deswirler walls and a set of deswirler channels, with at least a portion of the set of walls being provided within the set of deswirler walls.
5 . The turbine engine of claim 1 , wherein the fuel channel extends through the interior of the at least one wall.
6 . The turbine engine of claim 1 , wherein the fuel supply system comprises an exterior plenum extending circumferentially about the centerline and opening to the fuel channel, the exterior plenum being located exterior of the interior.
7 . The turbine engine of claim 6 , wherein the exterior plenum opens to two or more channels of the set of walls.
8 . The turbine engine of claim 6 , wherein the exterior plenum extends continuously about greater than or equal to 25% and less than or equal to 100% of a circumferential extent of the centerline.
9 . The turbine engine of claim 1 , wherein the fuel supply system comprises an interior plenum extending circumferentially about the centerline, the fuel channel opening to the interior plenum.
10 . The turbine engine of claim 9 , wherein:
the fuel nozzle is included in a plurality of fuel nozzles; and
the at least one fuel line branch comprises a set of fuel line branches extending from the interior plenum, with each fuel line branch of the set of fuel line branches extending between a respective portion of the interior plenum and to a corresponding fuel nozzle of the plurality of fuel nozzles.
11 . The turbine engine of claim 10 , wherein the interior plenum extends continuously about greater than or equal to 25% and less than or equal to 100% of a circumferential extent of the centerline.
12 . The turbine engine of claim 1 , wherein the fuel nozzle is included in a plurality of fuel nozzles.
13 . The turbine engine of claim 1 , wherein the fuel channel is included in a plurality of fuel channels, and every other wall of the set of walls includes at least one fuel channel of the plurality of fuel channels.
14 . The turbine engine of claim 1 , wherein the set of fuel line branches are coupled to the fuel nozzle at a set of joints being the only couplings between the fuel supply and the combustion section within the interior.
15 . The turbine engine of claim 1 , wherein the deswirler assembly and the fuel supply are at least partially integrally formed.
16 . The turbine engine of claim 1 , wherein the at least one wall is a heat exchanger configured to transfer a heat from a working airflow flowing over the at least one wall to a flow of fuel within fuel channel.
17 . The turbine engine of claim 1 , wherein the combustion section comprises a combustor arm extending between the combustor and the circumferential casing.
18 . The turbine engine of claim 1 , wherein the circumferential casing, the fuel supply system, and the deswirler assembly are integrally formed.
19 . The turbine engine of claim 1 , wherein the combustion section comprises a compressed air passage formed between the circumferential casing and the combustor, with the deswirler assembly opening to the compressed air passage.