EP 2347125 A2 20110727 - WIND TURBINE BLADE WITH VARIABLE BLADE SURFACE
Title (en)
WIND TURBINE BLADE WITH VARIABLE BLADE SURFACE
Title (de)
WINDTURBINENSCHAUFEL MIT VERSTELLBARER SCHAUFELFLÄCHE
Title (fr)
PALE D'ÉOLIENNE
Publication
Application
Priority
- EP 2009063402 W 20091014
- DK PA200801436 A 20081014
- US 19614408 P 20081014
- DK PA200900342 A 20090312
- US 15963009 P 20090312
Abstract (en)
[origin: WO2010043647A2] The invention relates to a wind turbine blade comprising a blade body, a device for modifying the aerodynamic surface or shape of the blade and movably connected hereto, and operating mechanisms for controlling the position and/or movement of the device. The operating mechanism comprises a compressible pressure chamber arranged in relation to the blade body and the movable device such that the position and/or movement of the device relative to the blade body can be modified by changing the pressure in the pressure chamber thereby causing a change of its cross sectional diameter. The operating mechanisms may be connected to and driven by a pressure reservoir arranged within the wind turbine blade or for example constituted by parts of the blade spar.
IPC 8 full level
F03D 1/06 (2006.01)
CPC (source: EP)
F03D 1/0641 (2013.01); F03D 1/0675 (2013.01); F03D 7/0232 (2013.01); F03D 80/30 (2016.05); F05B 2240/3052 (2020.08); F05B 2270/605 (2013.01); Y02E 10/72 (2013.01)
Citation (search report)
See references of WO 2010043647A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2010043647 A2 20100422; WO 2010043647 A3 20110324; EP 2347125 A2 20110727
DOCDB simple family (application)
EP 2009063402 W 20091014; EP 09740874 A 20091014