(19)

(11)

EP 1 540 169 A1

(12)

(43) Date of publication: 15.06.2005 Bulletin 2005/24 (21) Application number: 03766424.0 (22) Date of filing: 17.07.2003

(51) International Patent Classification (IPC)7: F02M 55/04 (86) International application number: PCT/FI2003/000570 (87) International publication number: WO 2004/013487 (12.02.2004 Gazette 2004/07)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 02.08.2002 FI 20021432 (71) Applicant: Wärtsilä Finland Oy 65380 Vaasa (FI)	(72) Inventor: LEHTONEN, Kai FIN-65280 Vaasa (FI) (74) Representative: Gustafsson, Aulis Valdemar  AWEK Industrial Patents Ltd OyP.O. Box 230 00101 Helsinki 00101 Helsinki (FI)