Geared gas turbine engine with reduced fan noise
US10655538B2 · kind B2 · utility
14Cited by
81References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2018 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Nov 13, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/603
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan section for a gas turbine engine according to an example of the present disclosure includes, among other things, a fan rotor having fan blades, and a plurality of fan exit guide vanes positioned downstream of the fan rotor. The fan rotor is configured to be driven through a gear reduction. A ratio of a number of fan exit guide vanes to a number of fan blades is defined. The fan exit guide vanes are provided with optimized sweep and optimized lean.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.