(19)

(11)

EP 3 976 888 A1

(12)

(43) Date of publication: 06.04.2022 Bulletin 2022/14 (21) Application number: 20728939.8 (22) Date of filing: 20.05.2020

(51) International Patent Classification (IPC):  E02D 37/00(2006.01) E04G 23/02(2006.01) E02D 27/42(2006.01) (52) Cooperative Patent Classification (CPC): E02D 37/00; E02D 27/425; E04G 23/0229; F05B 2230/80; F03D 13/22 (86) International application number: PCT/DK2020/050145 (87) International publication number: WO 2020/239176 (03.12.2020 Gazette 2020/49)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 27.05.2019 DK PA201970333 (71) Applicant: VESTAS WIND SYSTEMS A/S 8200 Aarhus N (DK)	(72) Inventor: BODE, Kay 99084 Erfurt (DE) (74) Representative: Vestas Patents Department  Hedeager 42 8200 Aarhus N 8200 Aarhus N (DK)