Carbide torch igniter

A gas turbine engine having a start mechanism ignitor comprising:

• a case supporting a combustion section having a combustor;
• a nozzle attached to a combustor casing, the nozzle fluidly coupled to a fuel injector upstream from the nozzle;
• a nozzle wall defining a nozzle interior;
• and
• a torch ignitor attached to the nozzle wall and fluidly coupled with the nozzle interior;
• wherein the torch ignitor comprises a torch mixing zone fluidly coupled with a reaction source container upstream of the torch mixing zone;
• the torch mixing zone fluidly coupled with a torch outlet downstream of the torch mixing zone, the torch outlet fluidly coupled with the nozzle interior;
• wherein the torch ignitor comprises a chemical source material within the torch mixing zone and a reaction source material within the reaction source container, wherein the chemical source material is a calcium carbide and the reaction source material is water.

A process of forming a gas turbine engine having a start mechanism ignitor comprising:

• forming a case supporting a combustion section having a combustor with a combustor casing;
• attaching a nozzle to the combustor casing;
• fluidly coupling the nozzle to a fuel injector upstream from the nozzle;
• forming a nozzle wall defining a nozzle interior;
• and
• attaching a torch ignitor to the nozzle wall;
• fluidly coupling the torch ignitor with the nozzle interior;
• fluidly coupling a torch mixing zone with a reaction source container upstream of the torch mixing zone;
• fluidly coupling the torch mixing zone with a torch outlet downstream of the torch mixing zone;
• fluidly coupling the torch outlet with the nozzle interior;
• locating a chemical source material within the torch mixing zone;
• and
• locating a reaction source material within the reaction source container, wherein the chemical source material is a calcium carbide and the reaction source material is water.