US 11,732,685 B2
Wind turbine blade assembly and methods
Josep Bosch-Collado, Barcelona (ES); Przemyslaw Skierczynski, Warsaw (PL); and Javier Bescos Grillo, Barcelona (ES)
Assigned to General Electric Renovables Espana, S.L., Barcelona (ES)
Filed by General Electric Renovables Espana, S.L., Barcelona (ES)
Filed on May 11, 2022, as Appl. No. 17/741,772.
Claims priority of application No. 21382629 (EP), filed on Jul. 12, 2021.
Prior Publication US 2023/0008864 A1, Jan. 12, 2023
Int. Cl. F03D 1/06 (2006.01)
CPC F03D 1/0658 (2013.01) [F05B 2260/301 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A wind turbine blade assembly, comprising:
a blade with a blade root portion;
a blade root flange;
a plurality of receptacles embedded in the blade root portion, the receptacles configured to receive hub fasteners to couple the blade root portion to a rotor hub;
a plurality of flange fasteners,
wherein the blade root flange is coupled to the blade root portion through the receptacles,
wherein one or more of the receptacles are first bushings comprising a first inner thread and a second inner thread of greater diameter than the first inner thread, and
wherein one or more flange fasteners of the plurality of flange fasteners are second bushings, the one or more flange fasteners including an outer thread that matches the second inner thread of the first bushings and a through hole of at least the same size as the first inner thread of the first bushings.