US 11,719,220 B2
Method of manufacturing a wind turbine blade and a wind turbine blade thereof
Jordy Hertel Nilsson Van Kalken, Kolding (DK)
Assigned to LM WIND POWER US TECHNOLOGY APS, Kolding (DK)
Appl. No. 16/615,665
Filed by LM WIND POWER US TECHNOLOGY APS, Kolding (DK)
PCT Filed May 22, 2018, PCT No. PCT/EP2018/063377
§ 371(c)(1), (2) Date Nov. 21, 2019,
PCT Pub. No. WO2018/215460, PCT Pub. Date Nov. 29, 2018.
Claims priority of application No. 17172221 (EP), filed on May 22, 2017.
Prior Publication US 2020/0116122 A1, Apr. 16, 2020
Int. Cl. F01D 1/06 (2006.01); F03D 1/06 (2006.01); B29C 64/10 (2017.01); B33Y 80/00 (2015.01); B29L 31/08 (2006.01)
CPC F03D 1/0633 (2013.01) [B29C 64/10 (2017.08); F03D 1/0675 (2013.01); B29L 2031/085 (2013.01); B33Y 80/00 (2014.12); F05B 2230/10 (2013.01); F05B 2230/30 (2013.01); F05B 2230/50 (2013.01); F05B 2230/80 (2013.01); F05B 2230/90 (2013.01); F05B 2240/302 (2013.01); F05B 2250/611 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of manufacturing a device (19) for modifying an aerodynamic profile of a wind turbine blade (5), the wind turbine blade (5) having a base aerodynamic profile, wherein the method comprises:
manufacturing a body (24) of the device (19) having at least one outer surface (21) and at least one contact surface (20), the at least one contact surface (20) is shaped to substantially follow the contour of said base aerodynamic profile, when attached, wherein the body (24) forms a complex profile extending in a chordwise direction and further in a longitudinal direction, the complex profile is configured to modify said base aerodynamic profile of the wind turbine blade (5), when attached, and wherein the complex profile has concave and convex curvature in the chordwise and longitudinal directions; and
applying (33′) at least one layer of fibre material or a coating over at least a portion of said at least one outer surface (21) of the body (24) to form the device (19), the device (19) being configured to be attached to the wind turbine blade (5),
wherein said body (24) is manufactured (31) by three-dimensional printing and/or by three-dimensional machining of a base element (31a) of said device (19).