(19)

(11)

EP 2 148 982 A2

(12)

(88) Date of publication A3: 22.01.2009 (43) Date of publication: 03.02.2010 Bulletin 2010/05 (21) Application number: 08761703.1 (22) Date of filing: 27.05.2008

(51) International Patent Classification (IPC):  F02M 55/02(2006.01) (86) International application number: PCT/FI2008/050307 (87) International publication number: WO 2008/145818 (04.12.2008 Gazette 2008/49)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 31.05.2007 FI 20075394 (71) Applicant: Wärtsilä Finland Oy 65380 Vaasa (FI)	(72) Inventor: EKLUND, Kjell FI-65370 Vaasa (FI) (74) Representative: Nissinen, Jyrki Antero et al AWEK Industrial Patents Ltd Oy Lautatarhankatu 6 00101 Helsinki 00101 Helsinki (FI)