US2012015309A1PendingUtilityA1

Method for a combustor nozzle

48
Assignee: STEWART JASON THURMANPriority: Apr 7, 2010Filed: Sep 26, 2011Published: Jan 19, 2012
Est. expiryApr 7, 2030(~3.7 yrs left)· nominal 20-yr term from priority
Inventors:Jason Thurman Stewart
F23R 3/14F23R 3/286
48
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Claims

Abstract

A method for supplying fuel to a combustor includes flowing a working fluid through a nozzle, injecting the fuel into the nozzle, and mixing the fuel with the working fluid to create a fuel and working fluid mixture. The method further includes swirling the fuel and working fluid mixture, sensing flame holding in the nozzle, and reducing the swirl in the fuel and working fluid mixture. A method for supplying a working fluid to a combustor includes flowing the working fluid through a nozzle and swirling the working fluid flowing through the nozzle. The method further includes sensing flame holding in the nozzle and reducing the swirl of the working fluid flowing through the nozzle.

Claims

exact text as granted — not AI-modified
1 . A method for supplying fuel to a combustor, comprising:
 a. flowing a working fluid through a nozzle;   b. injecting the fuel into the nozzle;   c. mixing the fuel with the working fluid to create a fuel and working fluid mixture;   d. swirling the fuel and working fluid mixture;   e. sensing flame holding in the nozzle; and   f. reducing the swirl in the fuel and working fluid mixture.   
     
     
         2 . The method as in  claim 1 , further including increasing the mass flow rate of the working fluid through the nozzle. 
     
     
         3 . The method as in  claim 1 , further including decreasing a tangential velocity of the fuel and working fluid mixture. 
     
     
         4 . The method as in  claim 1 , further including decreasing a fuel-to-working-fluid ratio in the fuel and working fluid mixture. 
     
     
         5 . The method as in  claim 1 , further including increasing an axial velocity of the fuel and working fluid mixture. 
     
     
         6 . The method as in  claim 1 , further comprising swirling the fuel and working fluid mixture with a bi-metallic guide. 
     
     
         7 . The method as in  claim 1 , further comprising changing a curvature of a bi-metallic guide to reduce the swirl in the fuel and working fluid mixture. 
     
     
         8 . A method for supplying a working fluid to a combustor, comprising:
 a. flowing the working fluid through a nozzle;   b. swirling the working fluid flowing through the nozzle;   c. sensing flame holding in the nozzle; and   d. reducing the swirl of the working fluid flowing through the nozzle.   
     
     
         9 . The method as in  claim 8 , further including increasing the mass flow rate of the working fluid flowing through the nozzle. 
     
     
         10 . The method as in  claim 8 , further including decreasing a tangential velocity of the working fluid flowing through the nozzle. 
     
     
         11 . The method as in  claim 8 , farther including increasing an axial velocity of the working fluid flowing through the nozzle. 
     
     
         12 . The method as in  claim 8 , further including decreasing a fuel-to-working-fluid ratio in the nozzle. 
     
     
         13 . The method as in  claim 8 , further comprising swirling the working fluid with a bi-metallic guide. 
     
     
         14 . The method as in  claim 8 , further comprising changing a curvature of a bi-metallic guide to reduce the swirl of the working fluid. 
     
     
         15 . A method for supplying a working fluid to a combustor, comprising:
 a. flowing the working fluid through a nozzle;   b. sensing flame holding in the nozzle; and   c. at least one of increasing the mass flow rate of the working fluid flowing through the nozzle, decreasing a tangential velocity of the working fluid flowing through the nozzle, or increasing an axial velocity of the working fluid flowing through the nozzle.   
     
     
         16 . The method as in  claim 15 , further including reducing the swirl of the working fluid flowing through the nozzle. 
     
     
         17 . The method as in  claim 15 , further including decreasing a fuel-to-working-fluid ratio in the nozzle. 
     
     
         18 . The method as in  claim 15 , further comprising swirling the working fluid with a bi-metallic guide. 
     
     
         19 . The method as in  claim 15 , further comprising changing a curvature of a bi-metallic guide. 
     
     
         20 . The method as in  claim 15 , further comprising sensing flame holding in the nozzle with a bi-metallic guide.

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