Mistuned fan for gas turbine engine
US10837459B2 · kind B2 · utility
1Cited by
21References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2017 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Nov 26, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan for a gas turbine engine comprises blades distributed around a hub. The blades include first and second blades, having geometric parameters and/or material properties that differ from each other to frequency mistune the fan. The blades are distributed about the hub with at least one second blade between adjacent first blades. The leading edge of the airfoil of the second blades is disposed axially aft of the corresponding leading edge of the first blades in at least a portion of the blade span.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.