(19)

(11)

EP 2 452 054 A1

(12)

(43) Date of publication: 16.05.2012 Bulletin 2012/20 (21) Application number: 10731543.4 (22) Date of filing: 04.06.2010

(51) International Patent Classification (IPC):  F01L 13/00(2006.01) (86) International application number: PCT/FI2010/050461 (87) International publication number: WO 2011/004059 (13.01.2011 Gazette 2011/02)

(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 SE SI SK SM TR (30) Priority: 07.07.2009 FI 20095770 (71) Applicant: Wärtsilä Finland Oy 65380 Vaasa (FI)	(72) Inventor: SUNDSTEN, Magnus FI-65610 Korsholm (FI) (74) Representative: Gustafsson, Aulis Valdemar et al AWEK Industrial Patents Ltd Oy P.O. Box 230 00101 Helsinki 00101 Helsinki (FI)