A device for repairing a casing holder of an aeronautical engine extending radially relative to the engine rotational axis and including a plurality of lips, each having a hole drilled therein and evenly distributed on the circumference of the holder. The device includes at least one reinforcement h
A device for repairing a casing holder of an aeronautical engine extending radially relative to the engine rotational axis and including a plurality of lips, each having a hole drilled therein and evenly distributed on the circumference of the holder. The device includes at least one reinforcement holder that can be attached to clean lips of the case holder via through-holes or blind-holes, the reinforcement holder having two orthogonal planes of symmetry. The device further includes a reconditioning holder mounted on the reinforcement holder via a first part using attachment means positioned in one of the planes of symmetry of the reinforcement holder.
대표청구항▼
1. A device for repairing a damaged scallop lip of an aeronautical engine casing flange running radially with respect to an axis of rotation of the engine and including a series of scallop lips, pierced with a hole, uniformly arranged on the circumference of the flange, the device comprising: at lea
1. A device for repairing a damaged scallop lip of an aeronautical engine casing flange running radially with respect to an axis of rotation of the engine and including a series of scallop lips, pierced with a hole, uniformly arranged on the circumference of the flange, the device comprising: at least one reinforcing flange that can be attached to healthy scallop lips of the casing flange using through-holes or blind-holes, the reinforcing flange having two orthogonal planes of symmetry; anda refurbishment flange including a first part extending circumferentially and positioned on a circumferential outer surface of the reinforcing flange and a second part extending radially inward from an end of the first part, the second part being axially offset from one of the planes of symmetry of the reinforcing flange such that the second part is aligned with the damaged scallop lip which is leveled off,wherein the refurbishment flange is mounted, via the first part, on the reinforcing flange using fastening means positioned in one of planes of symmetry of the reinforcing flange. 2. The device as claimed in claim 1, wherein the through-holes or blind-holes are tapped holes. 3. The device as claimed in claim 1, wherein the reinforcing flange is made of an aluminum alloy and in which the through-holes or blind-holes are bores fitted with tapped steel inserts. 4. The device as claimed in claim 3, wherein the fastening means includes tapped holes positioned on an external face of the reinforcing flange. 5. The device as claimed in claim 3, wherein the first part of the refurbishment flange is inserted in a circumferential cutout made on the circumferential outer surface of the reinforcing flange. 6. The device as claimed in claim 3, wherein the refurbishment flange is in a form of an L-shaped component. 7. The device as claimed in claim 3, wherein the refurbishment flange is pierced with a hole which, after fitting, is positioned in place of a hole of a missing scallop lip. 8. The device as claimed in claim 3, wherein the refurbishment flange bears a peg which, following installation on the engine, is directed along the axis of the engine and positioned facing the position of a hole of a missing scallop lip. 9. The device as claimed in claim 1, comprising two refurbishment flanges which are mounted at two ends of the reinforcing flange and situated in the plane in which the fastening means are positioned. 10. An aeronautical engine module comprising at least one casing flange that has been repaired using a device as claimed in claim 1. 11. An aeronautical engine comprising at least one module as claimed in claim 10. 12. A method of preparing an aeronautical engine casing flange running radially with respect to the axis of rotation of the engine and including a series of scallop lips, pierced with a hole, uniformly arranged on the circumference of the flange, at least one scallop lip of which is damaged, the method comprising: leveling the damaged scallop lip;selecting a free sector on the casing flange, adjacent to the leveled-off scallop lip and which is capable of accepting a reinforcing flange which is attachable to healthy scallop lips of the casing flange using through-holes or blind holes and having two orthogonal planes of symmetry and a refurbishment flange mounted, via a first part, on the reinforcing flange using fastening means positioned in one of planes of symmetry of the reinforcing flange;assembling the reinforcing flange and the refurbishment flange using the fastening means; andfastening the assembly to the casing flange using the holes in healthy scallop lips of the casing flange and the through-holes or blind-holes in the reinforcing flange.
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이 특허에 인용된 특허 (2)
Doleshal, Donald L., Frictional coupler and stiffener for strengthening a section of piling.
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