(19)

(11)

EP 4 225 637 A1

(12)

(43) Date of publication: 16.08.2023 Bulletin 2023/33 (21) Application number: 21782503.3 (22) Date of filing: 21.09.2021

(51) International Patent Classification (IPC):  B63J 2/12(2006.01) (52) Cooperative Patent Classification (CPC): B63J 2002/125; B63J 2003/043; B63J 2/12 (86) International application number: PCT/EP2021/075921 (87) International publication number: WO 2022/073756 (14.04.2022 Gazette 2022/15)

(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: 07.10.2020 EP 20200428 (71) Applicant: Alfa Laval Corporate AB 221 00 Lund (SE)	(72) Inventor: ZHENG, Jianwu 9200 AALBORG (DK) (74) Representative: Alfa Laval Attorneys  Alfa Laval Corporate AB Patent Department P.O. Box 73 221 00 Lund 221 00 Lund (SE)