(19)

(11)

EP 4 237 691 A1

(12)

(43) Date of publication: 06.09.2023 Bulletin 2023/36 (21) Application number: 21819345.6 (22) Date of filing: 29.10.2021

(51) International Patent Classification (IPC):  F04D 25/08(2006.01) F04D 29/70(2006.01) (52) Cooperative Patent Classification (CPC): F04D 25/088; F04D 29/703 (86) International application number: PCT/DK2021/050319 (87) International publication number: WO 2022/089705 (05.05.2022 Gazette 2022/18)

(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: 30.10.2020 DK PA202070721 18.06.2021 DK PA202170311 (71) Applicant: Nordicco A/S 7000 Fredericia (DK)	(72) Inventors: THOMSEN, Dennis 7000 Fredericia (DK) HERMANSEN, Jesper 8660 Skanderborg (DK) (74) Representative: Patrade A/S  Ceresbyen 75 8000 Aarhus C 8000 Aarhus C (DK)