Aircraft turbine engine with a pair of rotating and non-ducted propellers
US11021230B2 · kind B2 · utility
5Cited by
1References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 22, 2019 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | May 22, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An aircraft turbine engine has a pair of rotating and non-ducted propellers. An upstream propeller has an outer diameter D1 and a downstream propeller has an outer diameter D2. The engine further includes a system for varying the diameter D2. The downstream propeller includes an annular row of blades, each of which is configured to be mounted telescopically in the radial direction (R) in an outer fan duct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.