Patent · US Active

Noise reducing wind turbine blade

US12276250B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

LM WIND POWER A/S · DK

Inventors

Andreas Herrig · Garching an der Alz, DE
Trevor Howard Wood · Clifton Park, US
Guannan Wang · Beijing, CN

Key dates

Filing date	May 3, 2022
Grant date	Apr 15, 2025
Priority date	—
Expiry date	May 3, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/72
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A wind turbine blade (10) comprising a pressure side (24) and a suction side (26), a leading edge (18) and a trailing edge (20). At least a portion of the blade (10) located in a trailing edge region (142) at or adjacent to the trailing edge (20) is a noise reducing portion defining an exposed surface and comprising a plurality of sound reducing or sound absorbing acoustic resonators (58), each of the resonators (58) comprising an opening (55) in the exposed surface and a cavity (56) having a length L between the opening (55) and a bottom (57) of the cavity opposite the opening (55).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.