(19)

(11)

EP 3 008 472 A1

(12)

(43) Date of publication: 20.04.2016 Bulletin 2016/16 (21) Application number: 14739211.2 (22) Date of filing: 12.06.2014

(51) International Patent Classification (IPC):  G01P 3/489(2006.01) (86) International application number: PCT/FI2014/050475 (87) International publication number: WO 2014/199018 (18.12.2014 Gazette 2014/51)

(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: 12.06.2013 FI 20135641 (71) Applicant: Wärtsilä Finland Oy 65380 Vaasa (FI)	(72) Inventors: ÖSTMAN, Fredrik FI-65100 Vaasa (FI) KAAS, Tom FI-65410 Solf (FI) (74) Representative: Berggren Oy Ab  P.O. Box 16 Eteläinen Rautatiekatu 10A 00101 Helsinki 00101 Helsinki (FI)