US 12,226,974 B2
Method for manufacturing a wind turbine blade and wind turbine blade obtained thereby
Kristen Hanrahan, New Orleans, LA (US); Tanner Knoblock, New Orleans, LA (US); Justin Hunter, New Orleans, LA (US); Jasper Knoblock, New Orleans, LA (US); and Jeppe Jørgensen, Kolding (DK)
Assigned to LM WIND POWER A/S, Kolding (DK); and BLADE DYNAMICS LLLP, New Orleans, LA (US)
Appl. No. 17/921,163
Filed by LM WIND POWER A/S, Kolding (DK); and BLADE DYNAMICS LLLP, New Orleans, LA (US)
PCT Filed May 25, 2020, PCT No. PCT/EP2020/064418
§ 371(c)(1), (2) Date Oct. 25, 2022,
PCT Pub. No. WO2021/239209, PCT Pub. Date Dec. 2, 2021.
Prior Publication US 2023/0166472 A1, Jun. 1, 2023
Int. Cl. F03D 1/06 (2006.01); B29C 70/52 (2006.01); B29C 70/86 (2006.01); B29D 99/00 (2010.01)
CPC B29D 99/0028 (2013.01) [B29C 70/523 (2013.01); B29C 70/86 (2013.01); F03D 1/0675 (2013.01); F05B 2230/20 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for manufacturing a wind turbine blade extending along a spanwise axis from a blade root through a root region and an airfoil region to a tip region with a blade tip, the wind turbine blade comprising a pressure side, a suction side and a chord line extending between a leading edge and a trailing edge, the wind turbine blade comprising a shell providing the aerodynamic shape of the wind turbine blade and a main laminate forming a load carrying structure of the wind turbine blade, comprising the steps of:
providing one or more individual pultrusions having a first tapering end with a tapering end face terminating in a taper tip;
covering the first tapering end of the one or more pultrusions with an end cap;
arranging the one or more pultrusions in one layer or a plurality of stacked layers including at least a bottom layer on a first assembly surface at a first assembly station to provide a pultrusion arrangement extending in a longitudinal direction between a pultrusion root end and a pultrusion tip end, wherein the first tapering end of the one or more pultrusions forms the pultrusion root end or the pultrusion tip end of the pultrusion arrangement; and
removing the end cap from the first tapering end of the one or more pultrusions while the one or more pultrusions are on the first assembly surface.