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US 10,295,187 B2Granted
Fuel nozzle having aerodynamically shaped helical turning vanes
AssigneeROLLS-ROYCE plc
InventorsBrandon P. Williams, Kevin E. Thompson, Robert R. Fogarty
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Abstract
A fuel nozzle for a gas turbine engine is disclosed which includes a nozzle body having a longitudinal axis, an elongated annular air passage defined within the nozzle body, and a plurality of circumferentially spaced apart axially extending swirl vanes disposed within the annular air passage, wherein each swirl vane has multiple joined leads and a variable thickness along the axial extent thereof.
Claims10
An air swirler for a fuel nozzle comprising:
- a) a central hub defining a longitudinal axis;
- b) a plurality of circumferentially spaced apart axially extending helically pitched swirl vanes extending radially outwardly from the hub, each of the swirl vanes having multiple joined helical leads and a variable thickness along the axial extent thereof.
Dependencies are inferred from the claim text.