(19)

(11)

EP 2 347 120 A2

(12)

(88) Date of publication A3: 23.12.2010 (43) Date of publication: 27.07.2011 Bulletin 2011/30 (21) Application number: 09737187.6 (22) Date of filing: 12.10.2009

(51) International Patent Classification (IPC):  F03B 13/18(2006.01) (86) International application number: PCT/NO2009/000355 (87) International publication number: WO 2010/044674 (22.04.2010 Gazette 2010/16)

(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 MK MT NL NO PL PT RO SE SI SK SM TR Designated Extension States: AL BA RS (30) Priority: 17.10.2008 NO 20084372 (71) Applicant: Straumekraft AS 5200 Os (NO)	(72) Inventors: STRAUME, Ingvald N-2312 Ottestad (NO) SANDNES, Morten N-5259 Hjellestad (NO) MO, Arne, Johannes N-5267 Espeland (NO) (74) Representative: Onsagers AS  Universitetsgaten 7 P.O. Box 6963 St. Olavs plass 0130 Oslo 0130 Oslo (NO)