Patent ID: 11913427
Assignee: WOBBEN PROPERTIES GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  G  Y | IPC F  G

Claim 0:
1. A rotor blade for a wind power installation, comprising:
a rotor blade body having:
a rotor blade length,
a profile depth between a leading edge and a trailing edge,
a profile thickness between a suction side and a pressure side, and
a trailing edge region that adjoins the trailing edge and extends with a region extent of less than 20% of the profile depth in a direction of the leading edge,

wherein the trailing edge region has at least one acoustic opening,
wherein at least one section of the trailing edge region is formed by a suction-side trailing edge element and a pressure-side trailing edge element, which are arranged adjacent to one another in a direction of the profile thickness, and wherein at least one of the trailing edge elements and/or a screen between the trailing edge elements are/is arranged movably,
wherein the at least one acoustic opening is open in an open position of the movably arranged trailing edge element and is substantially closed in a closed position of the movably arranged trailing edge element, and/or
wherein the at least one acoustic opening is open in an open position of the screen and is substantially closed in a closed position of the screen.