Patent · US Active

Pitch drive system for a wind turbine

US7513742B2 · kind B2 · utility

18Cited by

4References

15Claims

0Family size

Assignee

General Electric Company · US

Inventors

Peter Rogall · St. Blasien, DE
Patrick Achenbach · Rheine, DE

Key dates

Filing date	Oct 14, 2005
Grant date	Apr 7, 2009
Priority date	—
Expiry date	Mar 14, 2027

Classification

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

Abstract

A pitch drive system for a wind turbine is provided which comprises a regulation drive for regulating the pitch of a rotor blade of the wind turbine during normal operation, the regulation drive comprising at least one drive train, and an emergency drive for pitching the rotor blade in case of emergency, the emergency drive comprising at least one drive train, wherein the at least one drive train of the emergency drive is separate from the at least one drive train of the regulation drive.

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