(19)

(11)

EP 2 834 480 A1

(12)

(43) Date of publication: 11.02.2015 Bulletin 2015/07 (21) Application number: 13711447.6 (22) Date of filing: 26.02.2013

(51) International Patent Classification (IPC):  F01L 9/02(2006.01) (86) International application number: PCT/FI2013/050213 (87) International publication number: WO 2013/132149 (12.09.2013 Gazette 2013/37)

(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 RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 09.03.2012 FI 20125254 (71) Applicant: Wärtsilä Finland Oy 65380 Vaasa (FI)	(72) Inventors: NIINIKANGAS, Saku FI-65100 Vaasa (FI) SUNDSTEN, Magnus FI-65610 Korsholm (FI) (74) Representative: Berggren Oy Ab  P.O. Box 16 Antinkatu 3 C 00101 Helsinki 00101 Helsinki (FI)