Systems and methods for detecting combustor casing flame holding in a gas turbine engine

In a gas turbine engine that includes a compressor (104) and a combustor (106), wherein the combustor (106) includes a primary fuel injector within a fuel nozzle and a secondary fuel injector (160) upstream of the fuel nozzle, a system (200) for detecting a flame about the secondary fuel injector, t...

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Bibliographische Detailangaben
Hauptverfasser:	KRULL, ANTHONY WAYNE, KRAEMER, GILBERT OTTO, FREDERICK, GARTH CURTIS, TORONTO, DAVID KAYLOR
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 REGULATING OR CONTROLLING COMBUSTION WEAPONS
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Beschreibung
Zusammenfassung:	In a gas turbine engine that includes a compressor (104) and a combustor (106), wherein the combustor (106) includes a primary fuel injector within a fuel nozzle and a secondary fuel injector (160) upstream of the fuel nozzle, a system (200) for detecting a flame about the secondary fuel injector, the system (200) comprising: a first pressure sensor (204) that detects an upstream pressure upstream of the secondary fuel injector (160); a second pressure sensor (206) that detects a downstream pressure downstream of the secondary fuel injector (160); means (208) for determining a measured pressure difference between the upstream pressure and the downstream pressure; and means (210) for comparing the measured pressure difference to an expected pressure difference.