VENTURI FOR USE IN SWIRL CUP PACKAGE OF GAS TURBINE COMBUSTOR HAVING WATER INJECTED THEREIN

PROBLEM TO BE SOLVED: To obtain a venturi improved to be protected against axial stresses imposed on the venturi, which stresses are caused by a temperature gradient generated by water injection into a combustor. SOLUTION: A combustion apparatus for a gas-turbine engine includes a combustor structur...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	GILBERT FARMER, GROESCHEN JAMES ANTHONY, RETTIG MARK GERARD
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS AIR SUPPLY BLASTING BURNERS COMBUSTION APPARATUS COMBUSTION ENGINES COMBUSTION PROCESSES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS DRAUGHT-INDUCING 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 SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a venturi improved to be protected against axial stresses imposed on the venturi, which stresses are caused by a temperature gradient generated by water injection into a combustor. SOLUTION: A combustion apparatus for a gas-turbine engine includes a combustor structure having at least one combustion chamber 14, a dual cone fuel nozzle 24 for injecting both fuel and water to the combustion chamber 14 and a swirl cup package upstream of and adjacent to this combustion chamber 14. The swirl cup package 22 further includes a swirler 28 and a venturi 34 extending in the axial direction between the fuel nozzle 24 and the combustion chamber 14 for mixing the fuel and water with air. The venturi 34 is configured to have a thickness (t) from an upstream end 44 to a downstream end 46, which thickness provides a heat transfer conduction path that reduces axial stresses imposed on the venturi 34 when water impinges on an upstream portion of the venturi 34.