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US 8,220,271 B2Granted
Fuel lance for a gas turbine engine including outer helical grooves
AssigneeALSTOM Technology Ltd
InventorsMadhavan Narasimhan Poyyapakkam, Adnan Eroglu, Gregory John Kelsall
Life of this patent
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Abstract
A fuel lance (7) for introducing fuel into a gas flow in a combustor (1) of a gas turbine engine includes a region of the lance (7) through which the fuel is introduced into the gas flow having a generally helical formation (12).
Claims14
A fuel lance useful for introducing fuel into a gas flow in a combustor of a gas turbine engine, the lance comprising:
- an elongate lance body including a generally helically shaped region through which fuel can be introduced into the gas flow, wherein the helically shaped region comprises a helical groove on the outer surface of the lance extending generally in the axial direction of the lance;
- at least one fuel outlet configured and arranged to introduce fuel into the gas flow, positioned on the surface of the helical groove;
- and
- wherein the at least one fuel outlet comprises a plurality of fuel outlets arranged on the surface of the helical groove and spaced apart in the axial and/or circumferential and/or radial directions.
1 more element
Dependencies are inferred from the claim text.