EP 1190175 A1 20020327 - METHOD ON REGULATING THE AIR FLOW AROUND THE WINDMILL WING AND DEVICE FOR USE IN SUCH METHOD
Title (en)
METHOD ON REGULATING THE AIR FLOW AROUND THE WINDMILL WING AND DEVICE FOR USE IN SUCH METHOD
Title (de)
METHODE UM DIE UMSTRÖMUNG UM EIN BLATT EINER WINDMÜHLE ZU REGELN UND EINRICHTUNG DAFÜR
Title (fr)
PROCEDE POUR REGULER L'ECOULEMENT DE L'AIR AUTOUR D'UNE PALE D'EOLIENNE ET DISPOSITIF UTILISE AVEC CE PROCEDE
Publication
Application
Priority
- DK 0000304 W 20000606
- DK PA199900802 A 19990607
Abstract (en)
[origin: WO0075508A1] The invention concerns a method and a device for regulating the air flow around a wing on a wind mill. The device consists of a spoiler provided with a hollow. The spoiler is fastened to the leading part of the wing, and the spoiler may assume different shapes in order thereby to change the air flow around the wing. When the spoiler assumes a deactivated shape, no substantial change of the air flow occurs as the spoiler then extends continually and follows the contour of the wing. When the spoiler assumes an activated shape, the air flow is changed, however, by the spoiler no longer following the contour of the wing and creating a discontinuity or at least changing the wing section so that the flow conditions are changed. The change of shape occurs by supplying a fluid, such as pressurised air or hydraulic oil, to the hollow in the spoiler. The change in the air flow is an advantage in order thereby to regulate the rotational speed of the rotor onto which the wing is mounted.
IPC 1-7
IPC 8 full level
F03D 7/02 (2006.01)
CPC (source: EP)
F03D 7/0252 (2013.01); F05B 2240/3052 (2020.08); Y02E 10/72 (2013.01)
Citation (search report)
See references of WO 0075508A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0075508 A1 20001214; AU 5061200 A 20001228; EP 1190175 A1 20020327
DOCDB simple family (application)
DK 0000304 W 20000606; AU 5061200 A 20000606; EP 00934942 A 20000606