(19)

(11)

EP 2 297 448 A2

(12)

(88) Date of publication A3: 28.01.2010 (43) Date of publication: 23.03.2011 Bulletin 2011/12 (21) Application number: 09757669.8 (22) Date of filing: 27.05.2009

(51) International Patent Classification (IPC):  F02M 63/02(2006.01) F02M 55/00(2006.01) (86) International application number: PCT/FI2009/050448 (87) International publication number: WO 2009/147291 (10.12.2009 Gazette 2009/50)

(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 MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 05.06.2008 FI 20085557 (71) Applicant: Wärtsilä Finland Oy 65380 Vaasa (FI)	(72) Inventor: JAY, David C. FI-66500 Vähäkyrö (FI) (74) Representative: Nissinen, Jyrki Antero et al AWEK Industrial Patents Ltd Oy P.O. Box 230 00101 Helsinki 00101 Helsinki (FI)