US 11,939,948 B2
Blade shell section and a wind turbine blade comprising a blade shell section
Manish Mukherjee, Eastleigh (GB); Laszlo Bartha, Heerhugowaard (NL); Aydin Raeis Hosseiny, Kolding (DK); and Sigmund Wenningsted, Kolding (DK)
Assigned to LM WIND POWER A/S, Kolding (DK); LM WIND POWER R&D (HOLLAND) B.V., Heerhugowaard (NL); and BLADE DYNAMICS LIMITED, Eastleigh (GB)
Appl. No. 17/924,675
Filed by LM WIND POWER A/S, Kolding (DK); LM WIND POWER R&D (HOLLAND) B.V., Heerhugowaard (NL); and BLADE DYNAMICS LIMITED, Eastleigh (GB)
PCT Filed May 11, 2021, PCT No. PCT/EP2021/062468
§ 371(c)(1), (2) Date Nov. 10, 2022,
PCT Pub. No. WO2021/228848, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. 2006893 (GB), filed on May 11, 2020.
Prior Publication US 2023/0175477 A1, Jun. 8, 2023
Int. Cl. F03D 1/06 (2006.01)
CPC F03D 1/0675 (2013.01) [F03D 1/069 (2023.08); F05B 2240/304 (2020.08); F05B 2250/711 (2013.01); F05B 2250/712 (2013.01); F05B 2280/4003 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A blade shell section of a wind turbine blade, the blade shell section extending in a longitudinal direction from a first shell section position to a second shell section position, the blade shell section comprising a first laminate layer forming the outer surface of the blade shell section and a second laminate layer forming the inner surface of the blade shell section,
the blade shell section further comprising:
a first shell section comprising a first core element having a first primary core surface and a first secondary core surface opposite the first primary core surface, a first primary core lateral face between the first primary core surface and the first secondary core surface and a first secondary core lateral face between the first primary and first secondary core surface laterally spaced from and opposite the first primary core lateral face;
a second shell section; and
a corner shell section between the first shell section and the second section, the corner shell section comprising a corner core element being an elongated element extending in a longitudinal direction between a first longitudinal end and a second longitudinal end and having:
a first corner main surface and a second corner main surface opposite the first corner main surface;
a first corner end face and a second corner end face opposite the first corner end face; and
a first corner lateral face between the first and the second corner main surface and a second corner lateral face between the first and second corner main surface laterally spaced from and opposite the first corner lateral face, the first corner lateral face having a first corner lateral face height, the second corner lateral face having a second corner lateral face height,
wherein the corner core element and the first core element being arranged such that the first corner lateral face abuts the first secondary core lateral face,
wherein the second corner main surface has a first radius of curvature at a first position proximate the first longitudinal end,
wherein the second corner main surface has a second radius of curvature at a second position proximate the second longitudinal end, and
wherein the first radius of curvature is larger than the second radius of curvature.