(19)

(11)

EP 3 635 232 A1

(12)

(43) Date of publication: 15.04.2020 Bulletin 2020/16 (21) Application number: 17733488.5 (22) Date of filing: 09.06.2017

(51) International Patent Classification (IPC):  F02F 1/24(2006.01) F02F 7/00(2006.01) F02B 61/04(2006.01) F01L 1/46(2006.01) F01P 3/14(2006.01) F01L 1/047(2006.01) F01L 1/14(2006.01) (86) International application number: PCT/FI2017/050427 (87) International publication number: WO 2018/224722 (13.12.2018 Gazette 2018/50)

(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 (71) Applicant: Wärtsilä Finland Oy 65100 Vaasa (FI)	(72) Inventor: HÄGGBLOM, Daniel 65100 Vaasa (FI) (74) Representative: Berggren Oy, Helsinki & Oulu  P.O. Box 16 Eteläinen Rautatiekatu 10A 00101 Helsinki 00101 Helsinki (FI)