EP 3788252 A4 20220525 - FLEXIBLE EXTENSION FOR WIND TURBINE ROTOR BLADES
Title (en)
FLEXIBLE EXTENSION FOR WIND TURBINE ROTOR BLADES
Title (de)
FLEXIBLE VERLÄNGERUNG FÜR WINDTURBINENROTORBLÄTTER
Title (fr)
EXTENSION FLEXIBLE POUR PALES DE ROTOR D'ÉOLIENNE
Publication
Application
Priority
US 2018031080 W 20180504
Abstract (en)
[origin: WO2019212560A1] The present disclosure is directed to a rotor blade assembly for a wind turbine. The rotor blade assembly includes a rotor blade having surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending between a blade tip and a blade root. Further, the rotor blade assembly includes a flexible extension having a first end and a second end. More specifically, the first end is mounted to a surface of the rotor blade and the second end is free. As such, during operation of the wind turbine, the flexible extension passively adjusts with a changing angle of attack of the rotor blade, thereby reducing variations in blade loading.
IPC 8 full level
F03D 1/06 (2006.01)
CPC (source: EP)
F03D 1/0633 (2013.01); F03D 1/0675 (2013.01); F03D 7/0232 (2013.01); F05B 2240/305 (2020.08); F05B 2240/311 (2013.01); Y02E 10/72 (2013.01)
Citation (search report)
- [X] US 2013266441 A1 20131010 - ENEVOLDSEN PEDER BAY [DK]
- [X] US 2009028705 A1 20090129 - MELDGAARD CHRISTIAN [DK], et al
- [X] US 7632068 B2 20091215 - BAK DAN CHRISTIAN [DK], et al
- [X] US 2014072441 A1 20140313 - ASHEIM MICHAEL J [US], et al
- [X] US 2012141269 A1 20120607 - GIGUERE PHILIPPE [US], et al
- [A] US 2017241400 A1 20170824 - WHITEHOUSE DANIEL [GB], et al
- [A] WO 2015091797 A1 20150625 - LM WP PATENT HOLDING AS [DK]
- [A] US 2012189455 A1 20120726 - ENEVOLDSEN PEDER BAY [DK], et al
- See references of WO 2019212560A1
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2019212560 A1 20191107; CN 112313407 A 20210202; EP 3788252 A1 20210310; EP 3788252 A4 20220525
DOCDB simple family (application)
US 2018031080 W 20180504; CN 201880095334 A 20180504; EP 18917237 A 20180504