ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSK..HRIS..MTNORS..SM..................JBDM Ver 1.7.2 (20 November 2019) - 1999001/03736437CORRECTED EUROPEAN PATENT APPLICATIONA8A120210721W172deBibliographieenBibliographyfrBibliographieEP19173557.02019050920210511enenen202107212021292020111120204620210721202129F03D 1/06 20060101AFI20191017BHEP F03D 7/02 20060101ALI20191017BHEP deHINTERKANTENANORDNUNGenTRAILING EDGE ASSEMBLYfrENSEMBLE DE BORD DE FUITE4Siemens Gamesa Renewable Energy A/S1016907832019P02587EPBorupvej 167330 BrandeDKREYES SOTOMAYOR, SergioRosenheimer Landstraße 3985521 OttobrunnDEENEVOLDSEN, Peter BayPetershøvej 10107100 VejleDKLAURSEN, Jesper MonradNørrebakken 138600 SilkeborgDEAspacher, Karl-Georg101649508Siemens Gamesa Renewable Energy GmbH & Co. KG Otto-Hahn-Ring 681739 MünchenDEALATBEBGCHCYCZDEDKEEESFIFRGBGRHRHUIEISITLILTLULVMCMKMTNLNOPLPTRORSSESISKSMTR

The invention describes a wind turbine rotor blade (2) comprising a root end (2R), an airfoil (2A), and a transition region (2SC) extending between the root end (2R) and the airfoil (2A), further comprising a chord-adjustable trailing edge assembly (1) extending over at least a portion of the transition region (2SC), which chord-adjustable trailing edge assembly (1) comprises an inflatable support structure (10); a flexible material (11) arranged to cover the inflatable support structure (10); and an interface (135) to a volume control means (13) realised to adjust the volume of the inflatable support structure (10) to extend a chord length (Cext) of the transition region (2SC).