Patent · US Active

Winglet for a wind turbine rotor blade

US9103325B2 · kind B2 · utility

7Cited by

16References

9Claims

0Family size

Assignee

General Electric Company · US

Inventors

Klaus Ulrich Koegler · Rheine, DE
Ariane Frere · Brussels, BE
Andreas Herrig · Garching an der Alz, DE

Key dates

Filing date	Mar 20, 2012
Grant date	Aug 11, 2015
Priority date	—
Expiry date	Mar 11, 2034

Classification

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

Abstract

In one aspect, a winglet for a rotor blade is disclosed. The winglet may generally include a winglet body extending at least partially between a winglet origin and a blade tip. The winglet body may define a sweep and a pre-bend. The sweep defined between the winglet origin and the blade tip may range from about 0.5% to about 4.0% of a span of the rotor blade. The pre-bend defined between the winglet origin and the blade tip may range from about 1.5% to about 4.5% of the span of the rotor blade.

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