TORCH IGNITER WITH COOLING SYSTEM

An embodiment of a torch igniter for a combustor of a gas turbine engine includes a combustion chamber (150) oriented about an axis, a cap (146) defining an axially upstream end of the combustion chamber, a tip (140) defining the axially downstream end of the combustion chamber, an igniter wall (115...

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Bibliographische Detailangaben
Hauptverfasser:	PROCIW, Lev Alexander, RYON, Jason
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION APPARATUS COMBUSTION ENGINES COMBUSTION PROCESSES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	An embodiment of a torch igniter for a combustor of a gas turbine engine includes a combustion chamber (150) oriented about an axis, a cap (146) defining an axially upstream end of the combustion chamber, a tip (140) defining the axially downstream end of the combustion chamber, an igniter wall (115) extending from the cap to the tip and defining a radial extent of the combustion chamber, a structural wall (116) coaxial with and surrounding the igniter wall, an outlet passage (152) defined by the igniter wall within the tip, a glow plug housing (46) configured to receive a glow plug and allow an innermost end of the glow plug to extend into the combustion chamber, and a cooling system. The cooling system includes an air inlet (118) formed within an exterior of the structural wall, a cooling channel (114) forming a flow path through the structural wall at the glow plug housing, and an air passage.