US 11,913,426 B2
Rotor blade for a wind turbine and wind turbine
Dirk Küster, Sattel (CH)
Assigned to FLOWGEN DEVELOPMENT & MANAGEMENT AG, Zug (CH)
Appl. No. 17/625,937
Filed by FLOWGEN DEVELOPMENT & MANAGEMENT AG, Zug (CH)
PCT Filed Jul. 1, 2020, PCT No. PCT/EP2020/068506
§ 371(c)(1), (2) Date May 17, 2022,
PCT Pub. No. WO2021/004853, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 19185774 (EP), filed on Jul. 11, 2019.
Prior Publication US 2023/0160363 A1, May 25, 2023
Int. Cl. F03D 1/06 (2006.01); F03D 1/04 (2006.01)
CPC F03D 1/0641 (2013.01) [F03D 1/04 (2013.01); F05B 2240/301 (2013.01); F05B 2240/307 (2020.08); F05B 2260/96 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A rotor blade for a wind turbine having a rotor blade root defining a reference plane for fastening the rotor blade to a hub, a profile region adjoining the rotor blade root and extending into a rotor blade tip region facing away from the rotor blade root, a rotor blade nose and a rotor blade rear edge, which extend over the entire profile region, and an upper side forming a suction side and a lower side forming a pressure side of a blade profile extending over the entire profile region from the rotor blade nose to the rotor blade rear edge, and a chord of the blade profile extending through the rotor blade nose and the rotor blade rear edge, wherein a chord angle between the reference plan and the chord increases over the profile region, from the rotor blade root in the direction of the rotor blade tip region, and the reference plane further extends in a longitudinal direction of the rotor blade extending radially with respect to an axis of rotation of the wind turbine.