(19)

(11)

EP 2 820 277 A1

(12)

(43) Date of publication: 07.01.2015 Bulletin 2015/02 (21) Application number: 13712819.5 (22) Date of filing: 13.02.2013

(51) International Patent Classification (IPC):  F02F 1/00(2006.01) F02F 3/22(2006.01) F01P 3/06(2006.01) F02F 1/16(2006.01) F01P 3/02(2006.01) (86) International application number: PCT/FI2013/050158 (87) International publication number: WO 2013/121105 (22.08.2013 Gazette 2013/34)

(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 (30) Priority: 15.02.2012 FI 20125167 (71) Applicant: Wärtsilä Finland Oy 65380 Vaasa (FI)	(72) Inventors: NURMI, Hannu FI-65380 Vaasa (FI) KUITUNEN, Jorma FI-65520 Helsingby (FI) (74) Representative: Berggren Oy Ab  P.O. Box 16 Antinkatu 3 C 00101 Helsinki 00101 Helsinki (FI)