Back to results
US 9,790,917 B2Granted
Wind turbine blade and methods of operating it
AssigneeALSTOM Renewable Technologies
InventorsMarc Canal Vila, Daniel Miguel Alfaro
Life of this patent
Estimating the term…
Abstract
Wind turbine blade comprising a spar, a plurality of ribs rotatably mounted on said spar, and a rotating means adapted to rotate at least two consecutive ribs independently of each other. The blade can thus be operated so as to rotate at least two consecutive ribs independently of each other, although it is also possible to jointly rotate all the ribs.
Claims15
A wind turbine blade comprising:
- a spar,
- a plurality of ribs rotatably mounted on the spar,
- a flexible cover supported by the spar and the ribs, the flexible covering extending continuously over the ribs and defining a pressure side surface and a suction side surface of the blade, and
- an individual rotating means disposed at each of the ribs, the rotating means comprising an actuator for each rib, wherein each actuator independently actuates a single rib such that the cover can be continuously twisted between two or more of the ribs without a discontinuity in the cover, wherein the flexible cover comprises a first portion corresponding to the pressure side of the blade and a second portion corresponding to the suction side of the blade, such that the first and second portions are merged at a leading edge region of the blade and are removably attached to each other at a trailing edge region of the blade.
1 more element
Dependencies are inferred from the claim text.