(19)

(11)

EP 2 504 576 A1

(12)

(43) Date of publication: 03.10.2012 Bulletin 2012/40 (21) Application number: 10833663.7 (22) Date of filing: 19.11.2010

(51) International Patent Classification (IPC):  F03D 11/02(2006.01) F03D 3/00(2006.01) (86) International application number: PCT/SE2010/051280 (87) International publication number: WO 2011/065897 (03.06.2011 Gazette 2011/22)

(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 (30) Priority: 27.11.2009 SE 0950903 (71) Applicant: Vertical Wind Ab 754 50 Uppsala (SE)	(72) Inventor: BERNHOFF, Hans S-756 46 Uppsala (SE) (74) Representative: Karlsson, Leif Gunnar Börje  Groth & Co KB Box 6107 102 32 Stockholm 102 32 Stockholm (SE)