Patent · US Expired

Device for adjusting a rotor blade of a wind energy turbine

US7261517B2 · kind B2 · utility

12Cited by

3References

17Claims

0Family size

Assignee

General Electric Company · US

Inventors

Ulrich Uphues · Salzbergen, DE
Patrik Achenbach · Rheine, DE
Martin Von Mutius · Ascheffel, DE

Key dates

Filing date	Apr 28, 2003
Grant date	Aug 28, 2007
Priority date	—
Expiry date	Jul 17, 2023

Classification

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

Abstract

The device for adjusting a rotor blade of a wind energy turbine is provided with a driving device (12) for driving an adjusting element (24) for selectably rotating the rotor blade (26) in both directions about its longitudinal axis (28), an energy storage unit (30) and a free-running means (32) adapted to be selectively activated, said free-running means (32), in its activated state, allowing rotation of the rotor blade (26) by means of energy stored in the energy storage unit (30) only in one of the two directions up to a desired rotational position.

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