Adaptive vertical lift engine (AVLE) fan
US11542864B2 · kind B2 · utility
5Cited by
9References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2019 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Aug 23, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/606
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbofan engine has a fan portion in fluid communication with a core stream and a bypass stream of air separated by splitters disposed both upstream and downstream of the fan portion. A blade splitter (shroud) on the fan partially spans the fan blade thus separating the core and bypass streams downstream while leaving a gap upstream for communication between the flows. The communication gap expands the operational range of the fan over fans without the communication gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.