US 11,988,386 B2
Gas turbine engine injector module with thermally coupled fuel lines having respective outlets
Duane Peterson, Phoenix, AZ (US); Girish Kanakagiri, Bangalore (IN); Jaydeep Basani, Bangalore (IN); Nagaraja Rudrapatna, Phoenix, AZ (US); Paul Yankowich, Phoenix, AZ (US); Richard R. Bohman, Phoenix, AZ (US); Rodolphe Dudebout, Phoenix, AZ (US); and Venkatesha Prasad, Bangalore (IN)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed by HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed on Dec. 3, 2021, as Appl. No. 17/457,441.
Prior Publication US 2023/0175696 A1, Jun. 8, 2023
Int. Cl. F23R 3/28 (2006.01); F02C 7/22 (2006.01); F02C 9/40 (2006.01); F02C 9/44 (2006.01); F23R 3/34 (2006.01); F23R 3/36 (2006.01)
CPC F23R 3/283 (2013.01) [F02C 7/22 (2013.01); F02C 9/40 (2013.01); F02C 9/44 (2013.01); F23R 3/346 (2013.01); F23R 3/36 (2013.01); F05D 2270/31 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An injector module for a combustion section of a gas turbine engine comprising:
an injector stem that extends between an inlet end and an outlet end of the injector module, the outlet end comprising a first stem outlet and a second stem outlet;
a first fuel line of a first fuel circuit, the first fuel line having a first longitudinal segment, a wrap segment, and a first outlet segment extending in-series through the injector stem from the inlet end to the outlet end with the wrap segment disposed between the first longitudinal segment and the first outlet segment;
wherein the wrap segment includes a first part and a second part, the first part is disposed between the first longitudinal segment and the second part, the first outlet segment is straight and connected to the first stem outlet, and an axis of the first outlet segment is transverse to an axis of the first longitudinal segment with a first angle;
a second fuel line of a second fuel circuit, the second fuel line having a second longitudinal segment, a turn, and a second outlet segment extending in-series through the injector stem from the inlet end to the outlet end with the turn disposed between the second longitudinal segment and the second outlet segment;
wherein the second outlet segment is straight and connected to the second stem outlet, and an axis of the second outlet segment is transverse to an axis of the second longitudinal segment with a second angle different from the first angle;
the wrap segment of the first fuel line being thermally coupled to the second fuel line, and the first part of the wrap segment extending helically about the second longitudinal segment, and the second part of the wrap segment arcuately curving about the second outlet segment within a plane that is transverse to the axis of the second outlet segment.