(19)

(11)

EP 2 170 521 A1

(12)

(43) Date of publication: 07.04.2010 Bulletin 2010/14 (21) Application number: 08787701.5 (22) Date of filing: 10.07.2008

(51) International Patent Classification (IPC):  B04B 11/04(2006.01) B04B 13/00(2006.01) (86) International application number: PCT/FI2008/050424 (87) International publication number: WO 2009/010631 (22.01.2009 Gazette 2009/04)

(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 MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 13.07.2007 FI 20075544 (71) Applicant: Wärtsilä Finland Oy 65380 Vaasa (FI)	(72) Inventor: PELTOKOSKI, Raine FI-65320 Vaasa (FI) (74) Representative: Nissinen, Jyrki Antero et al AWEK Industrial Patents Ltd Oy Lautatarhankatu 6 00101 Helsinki 00101 Helsinki (FI)