METHODS AND SYSTEMS FOR OPERATING GAS TURBINE ENGINES

PROBLEM TO BE SOLVED: To provide a simplified and cost effective fuel system that prevents a flow of hot combustion gases between combustors and an idle fuel circuit.SOLUTION: A fuel delivery system comprises a primary fuel circuit configured to continuously supply fuel to each of a plurality of com...

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Bibliographische Detailangaben
Hauptverfasser:	FABIEN THIBAULT CODRON, WIDENER STANLEY KEVIN, JOHN EDWARD PRITCHARD
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a simplified and cost effective fuel system that prevents a flow of hot combustion gases between combustors and an idle fuel circuit.SOLUTION: A fuel delivery system comprises a primary fuel circuit configured to continuously supply fuel to each of a plurality of combustor assemblies during a first mode of operation and a second mode of operation. At least one secondary fuel circuit of the fuel delivery system is configured to supply fuel to each of the plurality of combustor assemblies during the second mode of operation. The secondary fuel circuit includes at least one isolation valve coupled in flow communication with each of the plurality of combustor assemblies. The at least one isolation valve facilitates preventing fluid flow upstream into the secondary fuel circuit during the first mode of operation. The fuel delivery system, using the isolation valve, replaces a purging system in the gas turbine engine.