Additive clocked fuel injector bolt

Abstract

A gas turbine engine combustor includes a unitary, monolithic combustor body and a unitary, monolithic combustor body boss formed in the unitary, monolithic combustor body. The unitary, monolithic combustor body includes boss threads and a visual boss clocking indicator. The unitary, monolithic combustor body boss is configured to receive, with the boss threads, a fuel injector bolt. The fuel injector bolt includes a bolt head having a visual fuel injector clocking indicator. a threaded body that includes fuel injector threads, one or more fuel intakes, a fuel injector channel, and an angled face that includes a fuel orifice. The fuel injector threads include a fastener arresting face.

1 . A fuel injector bolt comprising:
 a bolt head having a visual fuel injector clocking indicator;   a threaded body that includes fuel injector threads, wherein the fuel injector threads include a fastener arresting face;   one or more fuel intakes;   a fuel injector channel; and   an angled face that includes a fuel orifice.   
     
     
         2 . The fuel injector bolt of  claim 1 , wherein the visual fuel injector clocking indicator is configured to align with a visual boss clocking indicator when the fuel injector bolt is fully threaded into a unitary, monolithic combustor body boss. 
     
     
         3 . The fuel injector bolt of  claim 1 , wherein the fuel injector threads are configured to engage with boss threads and the fastener arresting face is configured to engage with a boss arrestor face when the fuel injector bolt is fully threaded into a unitary, monolithic combustor body boss, wherein the boss threads are positioned in a unitary, monolithic combustor body boss and the boss arrestor face is formed in the boss threads. 
     
     
         4 . The fuel injector bolt of  claim 1 , wherein the one or more fuel intakes are configured to align with a fuel injector channel formed in a unitary, monolithic combustor body. 
     
     
         5 . The fuel injector bolt of  claim 1 , wherein the fuel orifice is configured to deliver fuel into a dilution air channel formed in a unitary, monolithic combustor body. 
     
     
         6 . The fuel injector bolt of  claim 1 , wherein the fuel injector bolt is formed from a nickel-based alloy using additive manufacturing techniques. 
     
     
         7 . A gas turbine engine combustor, comprising:
 a unitary, monolithic combustor body;   a unitary, monolithic combustor body boss formed in the unitary, monolithic combustor body, wherein the unitary, monolithic combustor body includes boss threads and a visual boss clocking indicator, wherein the unitary, monolithic combustor body boss is configured to receive, with the boss threads, a fuel injector bolt; wherein   the fuel injector bolt comprises:
 a bolt head having a visual fuel injector clocking indicator; 
 a threaded body that includes fuel injector threads, wherein the fuel injector threads include a fastener arresting face; 
 one or more fuel intakes; 
 a fuel injector channel; and 
 an angled face that includes a fuel orifice. 
   
     
     
         8 . The gas turbine engine combustor of  claim 7 , wherein the visual fuel injector clocking indicator is configured to align with a visual boss clocking indicator when the fuel injector bolt is fully threaded into a unitary, monolithic combustor body boss. 
     
     
         9 . The gas turbine engine combustor of  claim 7 , wherein the fuel injector threads are configured to engage with boss threads and the fastener arresting face is configured to engage with a boss arrestor face when the fuel injector bolt is fully threaded into a unitary, monolithic combustor body boss, wherein the boss threads are positioned in a unitary, monolithic combustor body boss and the boss arrestor face is formed in the boss threads. 
     
     
         10 . The gas turbine engine combustor of  claim 7 , wherein the one or more fuel intakes are configured to align with a fuel injector channel formed in a unitary, monolithic combustor body. 
     
     
         11 . The gas turbine engine combustor of  claim 7 , wherein the fuel orifice is configured to deliver fuel into a dilution air channel formed in a unitary, monolithic combustor body. 
     
     
         12 . The gas turbine engine combustor of  claim 7 , wherein the fuel injector bolt is formed from a nickel-based alloy using additive manufacturing techniques. 
     
     
         13 . The gas turbine engine combustor of  claim 7 , wherein the unitary, monolithic combustor body is positioned along a primary combustor axis and the fuel injector bolt is positioned along a fuel injector axis, wherein the fuel injector axis is parallel with but offset from the primary combustor axis. 
     
     
         14 . A method of making a gas turbine engine combustor, comprising:
 forming, using additive manufacturing (AM) techniques, a unitary, monolithic combustor body having:
 a unitary, monolithic combustor body boss formed in the unitary, monolithic combustor body, wherein the unitary, monolithic combustor body includes boss threads and a visual boss clocking indicator, wherein 
   the unitary, monolithic combustor body boss is configured to receive, with the boss threads, a fuel injector bolt;   chasing the boss threads to finish the boss threads;   forming, using AM techniques, the fuel injector bolt having:
 a bolt head having a visual fuel injector clocking indicator; 
 a threaded body that includes fuel injector threads, wherein the fuel injector threads include a fastener arresting face; 
 one or more fuel intakes; 
 a fuel injector channel; and 
 an angled face that includes a fuel orifice; 
   chasing the fuel injector threads to finish the fuel injector threads;   aligning the fuel injector threads of the fuel injector bolt with the boss threads of the unitary, monolithic combustor body boss;   threading the fuel injector bolt into the unitary, monolithic combustor body boss until the fastener arresting face on the fuel injector threads engages with a boss arresting face on the boss threads, thereby stopping rotation of the fuel injector bolt in the unitary, monolithic combustor body boss, wherein when the fastener arresting face on the fuel injector threads engages with the boss arresting face on the boss threads the visual fuel injector clocking indicator on the bolt head aligns with the visual boss clocking indicator on the unitary, monolithic combustor body boss.   
     
     
         15 . The method of  claim 14 , wherein the one or more fuel intakes are configured to align with a fuel injector channel formed in a unitary, monolithic combustor body. 
     
     
         16 . The method of  claim 14 , wherein the fuel orifice is configured to deliver fuel into a dilution air channel formed in a unitary, monolithic combustor body. 
     
     
         17 . The method of  claim 14 , wherein the fuel injector bolt is formed from a nickel-based alloy using additive manufacturing techniques. 
     
     
         18 . The method of  claim 14 , wherein the unitary, monolithic combustor body is positioned along a primary combustor axis and the fuel injector bolt is positioned along a fuel injector axis, wherein the fuel injector axis is parallel with but offset from the primary combustor axis.