Method for repairing at least a portion of an acoustic panel
US8636107B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2013 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Jul 12, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1082
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a method for repairing a portion of an acoustic panel for a nacelle of an aircraft turbojet engine. The panel includes an acoustic skin in which a plurality of acoustic holes are drilled, a solid skin, and a cellular acoustic structure. The cellular acoustic structure, being arranged between the acoustic skin and the solid skin, has a plurality of cells, each of which has one or more drainage openings arranged in one or more of the walls forming each cell. The method includes a step of: defining a part of the acoustic panel to be cut; forming a cutting area closed by the acoustic skin; injecting a resin through the acoustic holes; positioning a replacement cellular acoustic structure in the cutting area and on the acoustic skin; forming a solid replacement skin on the replacement cellular acoustic structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.