Rotor blade shaped to enhance wake diffusion
US10975837B2 · kind B2 · utility
0Cited by
6References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2016 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Jul 4, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/727
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A blade 20 for a horizontal-axis wind turbine rotor comprises a radially-outer, energy-extraction portion 32 and a radially-inner, ventilation portion 30. The radially-inner ventilation portion 30 is shaped to ventilate a central area 34 of a wake of the rotor during use such that it contains more kinetic energy compared to the wake from a conventional rotor design. The increased wind flow velocity at the centre 34 of the wake generates additional shear stresses, with corresponding turbulence development, which gives rise to increased wake diffusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.