US 12,221,926 B2
Multi-temperature fuel injectors for a gas turbine engine
Hejie Li, Mason, OH (US); Shai Birmaher, Cincinnati, OH (US); and Michael A. Benjamin, Cincinnati, OH (US)
Assigned to GENERAL ELECTRIC COMPANY, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Jun. 8, 2022, as Appl. No. 17/805,986.
Prior Publication US 2023/0399980 A1, Dec. 14, 2023
Int. Cl. F02C 7/224 (2006.01); F02C 7/22 (2006.01); F02C 7/228 (2006.01); F02C 7/232 (2006.01); F23R 3/28 (2006.01)
CPC F02C 7/224 (2013.01) [F02C 7/222 (2013.01); F02C 7/232 (2013.01); F23R 3/28 (2013.01); F02C 7/228 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A gas turbine engine comprising:
a fuel conduit fluidly coupled to a fuel source to receive fuel from the fuel source;
a first fuel circuit fluidly coupled to the fuel conduit to receive a first portion of the fuel from the fuel source, the first fuel circuit including a first fuel manifold to distribute the first portion of the fuel at a first temperature;
a second fuel circuit arranged in parallel with first fuel circuit and fluidly coupled to the fuel conduit to receive a second portion of the fuel from the fuel source, the second fuel circuit including a second fuel manifold to distribute the second portion of the fuel at a second temperature, the second temperature being less than the first temperature;
a combustor including a combustion chamber; and
a plurality of fuel nozzles that inject the first portion of the fuel and the second portion of the fuel into the combustion chamber of the combustor, each fuel nozzle of the plurality of fuel nozzles being fluidly connected to both the first fuel circuit via the first fuel manifold to receive the first portion of the fuel at the first temperature and the second fuel circuit via the second fuel manifold to receive the second portion of the fuel at the second temperature, each fuel nozzle of the plurality of fuel nozzles being fluidly connected to both the first fuel circuit and the second fuel circuit to receive the first portion of the fuel at the first temperature simultaneously with the second portion of the fuel at the second temperature.