US 11,788,506 B2
Rotor blade and wind turbine
Ralf Messing, Aurich (DE); Jochen Stemberg, Aurich (DE); and Hauke Maass, Aurich (DE)
Assigned to Wobben Properties GmbH, Aurich (DE)
Appl. No. 17/612,124
Filed by Wobben Properties GmbH, Aurich (DE)
PCT Filed May 15, 2020, PCT No. PCT/EP2020/063679
§ 371(c)(1), (2) Date Nov. 17, 2021,
PCT Pub. No. WO2020/234176, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 10 2019 113 080.8 (DE), filed on May 17, 2019.
Prior Publication US 2022/0235735 A1, Jul. 28, 2022
Int. Cl. F03D 1/06 (2006.01)
CPC F03D 1/0641 (2013.01) [F05B 2240/304 (2020.08); F05B 2240/305 (2020.08)] 14 Claims
OG exemplary drawing
 
1. A rotor blade of a wind turbine, comprising:
a rotor blade length, a rotor blade depth extending over the rotor blade length, a rotor blade thickness extending over the rotor blade length, and a thickness of a trailing edge of the rotor blade extending over the rotor blade length,
wherein, in a region of the rotor blade length, the rotor blade has a splitter plate having a predetermined length and a Gurney flap having a predetermined height,
wherein a ratio of the predetermined height of the Gurney flap to the predetermined length of the splitter plate at a particular position in the direction of the rotor blade length is selected in such a manner that a threshold value that decreases with a decreasing relative profile thickness, which is defined as a ratio of the rotor blade thickness to the rotor blade depth, is not reached.