Patent ID: 11965466
Assignee: WOODWARD, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 17:
18. A method, comprising:
receiving fuel into an auxiliary combustion chamber of a first igniter stage of a turbine combustor assembly, the auxiliary combustion chamber housing comprising a mixing chamber and a tubular throat converging downstream of the mixing chamber;
mixing air incoming into the auxiliary combustion chamber with the fuel to provide a first air and fuel mixture;
igniting, by an ignition source projecting into the mixing chamber of the auxiliary combustion chamber housing, the first air and fuel mixture in the auxiliary combustion chamber;
receiving, from a fuel manifold, additional fuel into a tubular fuel passage of a second igniter stage comprising an auxiliary fuel outlet manifold defining a circumferential pattern of fuel openings arranged proximal to a chamber outlet of the auxiliary combustion chamber;
providing, by the auxiliary fuel outlet manifold, additional igniter fuel to the ignited first air and fuel mixture proximal the chamber outlet;
igniting, by the ignited first air and fuel mixture, the additional igniter fuel provided by the auxiliary fuel outlet manifold to provide a combusting air and fuel mixture; and
igniting a primary air and fuel mixture, in a primary combustion chamber of the turbine combustor assembly, with the combusting air and fuel mixture.