Wind turbine blade structures, lifting assemblies and methods of blade handling
US9719487B2 · kind B2 · utility
3Cited by
2References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2011 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Aug 7, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A wind turbine blade 2 is formed with structures allowing its lifting by a lifting apparatus 4, the blade comprising upper and lower blade shells and an internal load-bearing structure comprising an internal spar 16 or internal webs, a plurality of lifting points 20 arranged about the blade center of gravity, comprising openings for receiving lifting members 24 of a lifting apparatus insertable therein into structures 22 secured to the load-bearing structure, and with a locking connection being established between the lifting members 24 and the load-bearing structure 16.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.