US 11,815,266 B2
Combustor nozzle, combustor, and gas turbine including same
Borys Shershnyov, Changwon (KR)
Assigned to DOOSAN ENERBILITY CO., LTD., Changwon (KR)
Filed by DOOSAN ENERBILITY CO., LTD., Changwon-si (KR)
Filed on Nov. 21, 2022, as Appl. No. 18/057,468.
Claims priority of application No. 10-2022-0007492 (KR), filed on Jan. 18, 2022.
Prior Publication US 2023/0228423 A1, Jul. 20, 2023
Int. Cl. F23D 14/62 (2006.01); F23R 3/32 (2006.01); F23R 3/14 (2006.01); F23R 3/28 (2006.01)
CPC F23R 3/32 (2013.01) [F23D 14/62 (2013.01); F23R 3/14 (2013.01); F23R 3/286 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A combustor nozzle comprising a nozzle module, the nozzle module comprising:
a fuel supply pipe supplying fuel from the front side to the rear side;
a fuel plenum having an internal fuel flow path through which the fuel flows and communicating with the fuel supply pipe;
an air inlet formed in front of the fuel plenum;
a plurality of tubes disposed through a rear side of the fuel plenum, wherein a front end of each tube communicates with the air inlet, and a fuel port communicating with the fuel flow path is formed on a lateral side of each tube; and
a swirler provided with a plurality of swirling guides disposed obliquely in axial and circumferential directions on an inner circumferential surface of each of the plurality of tubes to swirl fluid, with a central portion thereof opened when viewed from the axial direction of the tube,
wherein each of the plurality of swirling guides is positioned to overlap with its adjacent swirling guide when viewed in the axial direction.