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(11)

EP 4 816 692 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24820257.4 (22) Date of filing: 26.11.2024

(51) International Patent Classification (IPC):  F03D 7/02(2006.01) F03D 9/25(2016.01) F03D 9/11(2016.01) F03D 80/00(2016.01) (52) Cooperative Patent Classification (CPC): F03D 9/255; F03D 80/003; F03D 9/11; F03D 7/0284 (86) International application number: PCT/DK2024/050283 (87) International publication number: WO 2025/113759 (05.06.2025 Gazette 2025/23)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 28.11.2023 IN 202311080663 11.01.2024 DK PA202430015 (71) Applicant: VESTAS WIND SYSTEMS A/S 8200 Aarhus N (DK)	(72) Inventors: SØGAARD, Morten Bagger 8200 Aarhus N (DK) AHMED SHAIK, Waseem 8200 Aarhus N (DK) BENGTSON, John 8200 Aarhus N (DK) (74) Representative: Vestas Patents Department  Hedeager 42 8200 Aarhus N 8200 Aarhus N (DK)