US 11,680,528 B2
Internally-mounted torch igniters with removable igniter heads
Jason Ryon, Carlisle, IA (US); Lev Alexander Prociw, Johnston, IA (US); Steve Myers, Norwalk, IA (US); Andy M. Tibbs, Earlham, IA (US); and Brandon P. Williams, Johnston, IA (US)
Assigned to Delavan Inc., Des Moines, IA (US)
Filed by Delavan Inc., Des Moines, IA (US)
Filed on Dec. 18, 2020, as Appl. No. 17/127,236.
Prior Publication US 2022/0195937 A1, Jun. 23, 2022
Int. Cl. F02C 7/264 (2006.01); F02C 7/18 (2006.01); F02C 7/22 (2006.01); F02C 7/28 (2006.01); F23R 3/28 (2006.01)
CPC F02C 7/264 (2013.01) [F02C 7/18 (2013.01); F02C 7/22 (2013.01); F02C 7/28 (2013.01); F23R 3/283 (2013.01); F05D 2240/35 (2013.01); F05D 2240/55 (2013.01); F05D 2260/201 (2013.01); F05D 2260/232 (2013.01); F05D 2260/30 (2013.01); F05D 2260/99 (2013.01); F23R 2900/03043 (2013.01); F23R 2900/03044 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A torch igniter for a combustor of a gas turbine engine, the torch igniter comprising:
an igniter body disposed within a high-pressure case of the gas turbine engine and extending primarily along a first axis, the igniter body comprising:
an annular wall surrounding the first axis and defining a radial extent of a combustion chamber therewithin; and
an outlet wall disposed at a downstream end of the annular wall, and defining a downstream extent of the combustion chamber, the outlet wall including an outlet fluidly communicating between the combustion chamber and an interior of the combustor;
an igniter head removably attached to the igniter body at an upstream end of the annular wall, wherein the igniter head defines an upstream extent of the combustion chamber, and comprises:
an ignition source extending at least partially into the combustion chamber; and
a fuel injector configured to inject fuel into the combustion chamber with an orientation impinging on the ignition source
wherein the igniter head extends through the high-pressure case and at least partially outside of the high-pressure case.