Patent · US Active

Noise reducer for rotor blade in wind turbine

US7976276B2 · kind B2 · utility

16Cited by

9References

20Claims

0Family size

Assignee

General Electric Company · US

Inventors

Scott Gabell Riddell · Greer, US
Traci Marlene Vandervort · Voorheesville, US
Juergen Esser · Hörstel, DE
Roger Drobietz · Salem, DE

Key dates

Filing date	Nov 4, 2010
Grant date	Jul 12, 2011
Priority date	—
Expiry date	Nov 4, 2030

Classification

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

Abstract

A rotor blade assembly for a wind turbine is disclosed. The rotor blade assembly includes a rotor blade having a pressure side, a suction side, a leading edge, and a trailing edge extending between a tip and a root, the rotor blade further defining a pitch axis. The rotor blade assembly further includes a noise reducer mounted to the rotor blade. The noise reducer includes a base plate defining a base line, a plurality of noise reduction features extending from the base line, and a plurality of apertures defined in the base plate. Each aperture is positioned on an opposite side of the base line from the plurality of noise reduction features such that the aperture is fully defined in the base plate.

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