Combustor with resonator

Abstract

A turbine engine can include a compressor section, a combustion section, and a turbine section in serial flow arrangement. The combustion section can include a combustor with a combustion chamber, a compressed air passage fluidly coupled to the combustion chamber, and a swirler. At least one acoustic resonator can be provided in the combustor.

1 . A turbine engine, comprising:
 a compressor section, a combustion section, and a turbine section in serial flow arrangement, and the combustion section having a combustor comprising:   
       a combustor liner at least partially defining a combustion chamber;
 a compressed air passage fluidly coupled to the compressor section and the combustion chamber; 
 
       a fuel passage fluidly coupled to the combustion chamber; and
 a swirler at least partially surrounding the fuel passage, the swirler comprising:
 an internal fluid passage having an inlet fluidly coupled to the compressed air passage and an outlet fluidly coupled to the fuel passage; and 
 an acoustic resonator having a resonator chamber fluidly coupled to the inlet of the internal fluid passage. 
 
 
     
     
         2 . The turbine engine of  claim 1 , wherein the swirler comprises a ferrule assembly at least partially surrounding the fuel passage. 
     
     
         3 . The turbine engine of  claim 2 , further comprising a first passage extending through a wall of the ferrule assembly, and also comprising a plenum at least partially surrounding the fuel passage. 
     
     
         4 . The turbine engine of  claim 3 , wherein the first passage and the plenum at least partially define the internal fluid passage. 
     
     
         5 . The turbine engine of  claim 1 , wherein the acoustic resonator comprises one of a quarter-wave resonator, a half-wave resonator, or a Helmholtz resonator. 
     
     
         6 . The turbine engine of  claim 1 , wherein the acoustic resonator comprises a quarter-wave resonator coupled to the inlet of the internal fluid passage and extending into the compressed air passage. 
     
     
         7 . The turbine engine of  claim 1 , wherein the acoustic resonator comprises an outer wall bounding the resonator chamber. 
     
     
         8 . The turbine engine of  claim 7 , wherein the outer wall comprises a resonator inlet fluidly coupled to the compressed air passage and a resonator outlet fluidly coupled to the inlet of the internal fluid passage. 
     
     
         9 . The turbine engine of  claim 1 , wherein the resonator chamber comprises a first chamber volume, and further comprising a second resonator chamber having a second chamber volume smaller than the first chamber volume. 
     
     
         10 . The turbine engine of  claim 1 , wherein the fuel passage is configured to supply hydrogen fuel to the combustion chamber. 
     
     
         11 . A combustor for a turbine engine, comprising:
 a combustor liner at least partially defining a combustion chamber;   a compressed air passage fluidly coupling a source of compressed air and the combustion chamber;   a fuel passage fluidly coupled to the combustion chamber; and   a swirler at least partially surrounding the fuel passage, the swirler comprising:
 an internal fluid passage having an inlet fluidly coupled to the compressed air passage and an outlet fluidly coupled to the fuel passage; and 
 an acoustic resonator having a resonator chamber fluidly coupled to the inlet of the internal fluid passage. 
   
     
     
         12 . The combustor of  claim 11 , wherein the swirler comprises a ferrule assembly at least partially surrounding the fuel passage. 
     
     
         13 . The combustor of  claim 12 , further comprising a first passage extending through a wall of the ferrule assembly, and also comprising a plenum at least partially surrounding the fuel passage. 
     
     
         14 . The combustor of  claim 13 , wherein the first passage and the plenum at least partially define the internal fluid passage. 
     
     
         15 . The combustor of  claim 11 , wherein the acoustic resonator comprises one of a quarter-wave resonator, a half-wave resonator, or a Helmholtz resonator. 
     
     
         16 . The combustor of  claim 11 , wherein the acoustic resonator comprises a quarter-wave resonator coupled to the inlet of the internal fluid passage and extending into the compressed air passage. 
     
     
         17 . The combustor of  claim 11 , wherein the acoustic resonator comprises an outer wall bounding the resonator chamber. 
     
     
         18 . The combustor of  claim 17 , wherein the outer wall comprises a resonator inlet fluidly coupled to the compressed air passage and a resonator outlet fluidly coupled to the inlet of the internal fluid passage. 
     
     
         19 . The combustor of  claim 11 , wherein the resonator chamber comprises a first chamber volume, and further comprising a second resonator chamber having a second chamber volume smaller than the first chamber volume. 
     
     
         20 . The combustor of  claim 19 , wherein the fuel passage is configured to supply hydrogen fuel to the combustion chamber.