(19)

(11)

EP 3 283 755 A1

(12)

(43) Date of publication: 21.02.2018 Bulletin 2018/08 (21) Application number: 15719257.6 (22) Date of filing: 16.04.2015

(51) International Patent Classification (IPC):  F02M 55/02(2006.01) F02M 55/04(2006.01) (86) International application number: PCT/FI2015/050263 (87) International publication number: WO 2016/166402 (20.10.2016 Gazette 2016/42)

(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: MA (71) Applicant: Wärtsilä Finland Oy 65380 Vaasa (FI)	(72) Inventor: LAAKSO, Ossi FI-65100 Vaasa (FI) (74) Representative: Berggren Oy, Helsinki & Oulu  P.O. Box 16 Eteläinen Rautatiekatu 10A 00101 Helsinki 00101 Helsinki (FI)