(19)

(11)

EP 2 310 654 A1

(12)

(43) Date of publication: 20.04.2011 Bulletin 2011/16 (21) Application number: 09754027.2 (22) Date of filing: 26.05.2009

(51) International Patent Classification (IPC):  F02D 35/02(2006.01) F02D 41/00(2006.01) F02D 41/14(2006.01) (86) International application number: PCT/FI2009/050436 (87) International publication number: WO 2009/144374 (03.12.2009 Gazette 2009/49)

(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 MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 26.05.2008 FI 20085496 (71) Applicant: Wärtsilä Finland Oy 65380 Vaasa (FI)	(72) Inventors: LEHTONEN, Kai FI-65100 Vaasa (FI) JUPPO, Pasi FI-65230 Vaasa (FI) GLADER, Tony FI-65610 Mustasaari (FI) (74) Representative: Nissinen, Jyrki Antero et al AWEK Industrial Patents Ltd Oy P.O. Box 230 00101 Helsinki 00101 Helsinki (FI)