System and method for nose cone edge delamination repair
AssigneeUnited Technologies Corporation
InventorBrian K. Holland
Life of this patent
Estimating the term…
Abstract
A system and method for nose cone edge delamination repair is provided. A nose cone may comprise an outer skirt having an aft edge, a flange, and a pin landing. The system and method may comprise trimming the aft edge of the nose cone to form a repaired edge. A first layer of fiberglass may be placed over repaired edge. A second layer of fiber glass may be placed over the first layer and the repaired edge. The first layer and second layer may be trimmed to create a spot face to allow for lower tolerances when installing the nose cone into a gas turbine engine.
Claims20
A nose cone, comprising:
- an outer skirt having an axially inner surface opposite an axially outer surface, and a repaired edge having a first edge and a second edge, wherein the first edge is substantially perpendicular with the second edge;
- a pin landing coupled to the axially inner surface near the repaired edge;
- a first layer coupled to the repaired edge and having a first end and a second end, wherein the first end extends in an axial direction past the repaired edge and onto the axially outer surface of the outer skirt, and wherein the second end extends in the axial direction past the repaired edge and onto the pin landing;
- and
- a second layer coupled to the first layer and having a third edge and a fourth edge, wherein the third edge of the second layer extends past the first end of the first layer and the fourth edge of the second layer extends past the second end of the first layer.
A method, comprising:
- trimming an aft edge of an outer skirt of a nose cone to form a repaired edge;
- placing a first layer onto the repaired edge;
- placing a second layer on top of the first layer, wherein the second layer extends past the first layer;
- and
- trimming the first layer and the second layer to form a spot face.
A fan section for a gas turbine engine, comprising:
- a fan hub;
- a plurality of fan blades coupled to the fan hub;
- and
- a nose cone coupled to the fan hub forward of the plurality of fan blades, wherein the nose cone comprises:
- an outer skirt having an axially inner surface opposite an axially outer surface, and a repaired edge having a first edge and a second edge, wherein the first edge is substantially perpendicular with the second edge;
- a pin landing coupled to the axially inner surface near the repaired edge;
- a first layer coupled to the repaired edge and having a first end and a second end, wherein the first end extends in an axial direction past the repaired edge and onto the axially outer surface of the outer skirt, and wherein the second end extends in the axial direction past the repaired edge and onto the pin landing;
- and
- a second layer coupled to the first layer and having a third edge and a fourth edge, wherein the third edge of the second layer extends past the first end of the first layer and the fourth edge of the second layer extends past the second end of the first layer.
Dependencies are inferred from the claim text.