Cell structure and acoustic attenuation device for a nacelle of an aircraft propulsion assembly
US11427299B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 25, 2020 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Dec 5, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/6033
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a cell structure for an acoustic attenuation device for a nacelle of an aircraft propulsion assembly. This cell structure includes lateral partitions forming channels that each extend between a first end and a second end and skin elements arranged so that each channel is at least partly closed at the first end thereof by at least one skin element. Each skin element is connected to a respective lateral partition and can move relative to the other lateral partitions. A continuous skin can be assembled on this cell structure so as to at least partly close the channels at the second end thereof and to thus form an acoustic attenuation device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.