FUEL OIL INJECTOR WITH SHIELDING AIR SUPPLY

A lance injector for a gas turbine engine, the lance injector includes a supply duct arrangement (17), having at least a first tubular body (20) and a second tubular body (21), concentrically extending along a central axis (A). A terminal member (18) is coupled to downstream end of the supply duct a...

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Bibliographische Detailangaben
Hauptverfasser:	Konradt, Oliver, Maurer, Michael Thomas, Bertolotto, Edoardo
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 lance injector for a gas turbine engine, the lance injector includes a supply duct arrangement (17), having at least a first tubular body (20) and a second tubular body (21), concentrically extending along a central axis (A). A terminal member (18) is coupled to downstream end of the supply duct arrangement (17). A fuel oil supply duct (25) is defined inside the first tubular body (20) and a shielding air duct (27) is delimited by the first tubular body (20) internally and by the second tubular body (21) externally. The terminal member (18) has a central fuel oil nozzle (30), coupled to the fuel oil supply duct (25), and an air outlet (31), coupled to the shielding air duct (27) and surrounding the fuel oil nozzle (30). The fuel oil nozzle (30) is configured to deliver a fuel oil flow (F) in a hollow cone pattern and the air outlet (31) is configured to direct a shielding air flow from the shielding air duct (27) such that the shielding air flow crosses the delivered fuel oil flow (F).