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US 9,957,821 B2Granted
Gas turbine engine composite airfoil trailing edge
AssigneeUnited Technologies Corporation
InventorsShelton O. Duelm, Michael G. McCaffrey
Life of this patent
Estimating the term…
Abstract
An airfoil for a gas turbine engine includes first pressure and suction side layers forming a cavity and terminating in ends near a trailing edge. The first and second suction side layers are constructed from a composite material. A bridge is wrapped about the ends.
Claims19
An airfoil for a gas turbine engine comprising:
- first pressure and suction side layers forming a cavity and terminating in ends near a trailing edge, the ends of the first pressure side and suction side layers joined to one another forming a V-shaped joint, the first pressure side and suction side layers constructed from a composite material;
- and
- a bridge wrapped about the ends to cover the V-shaped joint, the bridge extending beyond the ends in a V-shape to hold the ends together.
An airfoil for a gas turbine engine comprising:
- first pressure side and suction side layers forming a cavity and terminating in ends near a trailing edge, the first pressure side and suction side layers constructed from a composite material;
- a bridge wrapped about the ends;
- second pressure side and suction side layers adjoining the first pressure side and suction side layers, respectively, the bridge arranged between the first pressure side and suction side layers and the second pressure side and suction side second layers;
- and
- a space arranged between the bridge and the second pressure side and suction side layers, and a filler provided in the space.
2 more elements
A method of forming an airfoil comprising:
- wrapping first pressure side and suction side layers about a mandrel, ends of the first pressure side and suction side layers joined to one another forming a V-shaped joint;
- wrapping, a bridge around the ends of the first pressure side and suction side layers to cover the V-shaped joint, the bridge extending beyond the ends in a V-shape to hold the ends together;
- applying a filler over the bridge near a trailing edge;
- and
- wrapping second pressure side and suction side layers around the first pressure side and suction side layers and the filler.
2 more elements
Dependencies are inferred from the claim text.