Turbofan engine comprising a set of rotatable blades for blocking off the bypass flow duct and redirecting the air flow
US11359542B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2021 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Mar 12, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/411
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine including a motor and a nacelle and a duct between the nacelle and the motor. The nacelle includes a fixed structure, a mobile assembly that is mobile between an advanced position and a retracted position to define a window between the duct and the outside, and a plurality of blades that are mobile in rotation between a stowed position and a deployed position, each one extending on either side of its axis of rotation with a first arm and a second arm. In the stowed position, the first arm is outside the duct and the second arm is inside the nacelle, and where, in the deployed position, the first arm is across the duct and the second arm projects out of the nacelle. With such blades, the flow of air is optimally directed towards the front without it being necessary to provide cascades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.