Combustors with impingement cooled igniters and igniter tubes for improved cooling of igniters

Combustors with impingement cooled igniters and igniter tubes for improved cooling of igniters

A combustor for a gas turbine engine is provided, and includes an inner liner; an outer liner (28) circumscribing the inner liner and forming a combustion chamber (32) with the inner liner; a fuel igniter (62) comprising a tip portion (118) configured to ignite an air and fuel mixture in the combust...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Yankowich, Paul R, Zupanc, Frank J
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
HEATING
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Beschreibung
Zusammenfassung:A combustor for a gas turbine engine is provided, and includes an inner liner; an outer liner (28) circumscribing the inner liner and forming a combustion chamber (32) with the inner liner; a fuel igniter (62) comprising a tip portion (118) configured to ignite an air and fuel mixture in the combustion chamber; and an igniter tube (64) positioning the fuel igniter relative to the combustion chamber, the igniter tube having a plurality of channels (77) configured to direct cooling air (103) toward the tip portion of the fuel igniter.