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(11)

EP 2 297 456 A1

(12)

(43) Date of publication: 23.03.2011 Bulletin 2011/12 (21) Application number: 09768843.6 (22) Date of filing: 23.06.2009

(51) International Patent Classification (IPC):  F03D 1/06(2006.01) F03D 3/06(2006.01) (86) International application number: PCT/DK2009/000150 (87) International publication number: WO 2009/155921 (30.12.2009 Gazette 2009/53)

(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 TR Designated Extension States: AL BA RS (30) Priority: 23.06.2008 DK 200800861 (71) Applicant: Danmarks Tekniske Universitet 2800 Kgs. Lyngby (DK)	(72) Inventor: JENSEN, Find, Mølholt DK-4130 Viby Sjælland (DK) (74) Representative: Jakobsen, Gert Hoey  Zacco Denmark A/S Hans Bekkevolds Allé 7 2900 Hellerup 2900 Hellerup (DK)