Igniter for gas turbine engine
AssigneePratt & Whitney Canada Corp.
InventorsRichard Freer, Kian McCaldon, Tin-Cheung John Hu, Michel Bousquet, André Fortin
Life of this patent
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Abstract
A method of servicing a gas turbine engine having an igniter socket, the method comprising: inserting a glow plug into the igniter socket of the gas turbine engine until a rod end of a glow plug heater rod of the glow plug is exposed to a combustion chamber of the gas turbine engine; and blocking a gap between the glow plug heater rod and an aperture defined in a combustor liner of the gas turbine engine to block fluid communication between the combustion chamber and an environment outside the combustion chamber via the aperture.
Claims13
A method of servicing a gas turbine engine having an igniter socket, the method comprising:
- inserting a glow plug into the igniter socket of the gas turbine engine until a rod end of a glow plug heater rod of the glow plug is exposed to a combustion chamber of the gas turbine engine, the gas turbine engine having a fuel nozzle spaced apart and distinct from the glow plug, the glow plug having a combustor liner plug and a heater encapsulated within an external shell, the heater comprising a coiled resistive element;
- and
- blocking a gap between the glow plug heater rod and an aperture defined in a combustor liner of the gas turbine engine to block fluid communication between the combustion chamber and an environment outside the combustion chamber via the aperture, the blocking of the gap including blocking the gap with the combustor liner plug, the combustor liner plug extending circumferentially around the glow plug heater rod, an annular spacing extending radially and uninterrupted from the external shell of the glow plug heater rod to an inner face of the combustor liner plug.
Dependencies are inferred from the claim text.