US 11,920,566 B2
Method for repairing a rotor blade of a wind turbine
Uwe Rahmann, Großefehn (DE); Andre Kubasik, Aurich (DE); Michael Janssen, Aurich (DE); and Manuel Schickel, Aurich (DE)
Assigned to Wobben Properties GmbH, Aurich (DE)
Appl. No. 17/429,892
Filed by Wobben Properties GmbH, Aurich (DE)
PCT Filed Feb. 11, 2020, PCT No. PCT/EP2020/053392
§ 371(c)(1), (2) Date Aug. 10, 2021,
PCT Pub. No. WO2020/165123, PCT Pub. Date Aug. 20, 2020.
Claims priority of application No. 10 2019 103 304.7 (DE), filed on Feb. 11, 2019.
Prior Publication US 2022/0128040 A1, Apr. 28, 2022
Int. Cl. F03D 80/50 (2016.01); F03D 1/06 (2006.01)
CPC F03D 80/50 (2016.05) [F03D 1/0675 (2013.01); F05B 2230/10 (2013.01); F05B 2230/80 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method of repairing a wind turbine rotor blade which has erosion damage or transport damage, the method comprising:
ablating a first region into a surface or surface coating of the rotor blade forming an ablated region around the erosion damage or the transport damage,
applying an adhesive as a levelling material in the ablated region of the rotor blade surface to level the ablated region,
placing an erosion protection film on the adhesive, and
curing the adhesive.