Acoustically optimized air inlet
US10024236B2 · kind B2 · utility
1Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2014 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Sep 13, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/962
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A nacelle structure (10) surrounding a fan, the structure comprising an air inlet (100) having an inside surface (100A) defining an air feed channel; and at least one ring (22) arranged in the air inlet and selectively movable between a deployed position in which the ring is moved radially inwards from the inside surface to provide an obstacle to shock waves coming from the fan, and a retracted position in which the ring is moved radially outwards from the deployed position so as to become flush with the inside surface and thus reconstitute the air feed channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.