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1. (US20090202354) Wind turbine blade

Office : United States of America
Application Number: 11988960 Application Date: 15.07.2005
Publication Number: 20090202354 Publication Date: 06.10.2005
Grant Number: 08142162 Grant Date: 27.03.2012
Publication Kind : B2
Prior PCT appl.: Application Number:PCTIB2005052355 ; Publication Number: Click to see the data
IPC:
F03D 1/06
F01D 5/14
F03D 3/06
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03
MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
D
WIND MOTORS
1
Wind motors with rotation axis substantially in wind direction
06
Rotors
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
5
Blades; Blade-carrying members; Heating, heat-insulating, cooling, or antivibration means on the blades or the members
12
Blades
14
Form or construction
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03
MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
D
WIND MOTORS
3
Wind motors with rotation axis substantially at right angle to wind direction
06
Rotors
Applicants: Vestas Wind Systems A/S
Inventors: Godsk Kristian Balschmidt
Nielsen Thomas S. Bjertrup
Agents: Wood, Herron & Evans, L.L.P.
Priority Data:
Title: (EN) Wind turbine blade
Abstract: front page image
(EN)

An aerodynamic profile and a wind turbine comprising a wind turbine blade with reduced sensitivity towards surface irregularities are provided. The invention is mainly directed towards pitch-regulated wind turbines, which are operated at variable rotor speed and have blades longer than about 30 meters.


Also published as:
EP1915514CN101263277ES2561804DK1915514WO/2007/010329