(19)

(11)

EP 4 584 487 A1

(12)

(43) Date of publication: 16.07.2025 Bulletin 2025/29 (21) Application number: 22769758.8 (22) Date of filing: 06.09.2022

(51) International Patent Classification (IPC):  F02F 1/38(2006.01) F01N 13/10(2010.01) (52) Cooperative Patent Classification (CPC): F02F 1/38; F01N 13/10 (86) International application number: PCT/FI2022/050591 (87) International publication number: WO 2024/052586 (14.03.2024 Gazette 2024/11)

(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 (71) Applicant: Wärtsilä Finland Oy 65170 Vaasa (FI)	(72) Inventor: HÄGGBLOM, Daniel 65170 VAASA (FI) (74) Representative: Berggren Oy  P.O. Box 16 Eteläinen Rautatiekatu 10A 00101 Helsinki 00101 Helsinki (FI)