Bushing for a wind turbine rotor blade, flange insert, wind turbine rotor blade and wind turbine

US10883472B2 · kind B2 · utility

Assignee

• Nordex Energy GmbH · DE

Inventors

• Markus Werner · Zweibrücken, DE
• Tim Berend Block · Henstedt-Ulzburg, DE

Key dates

• Filing date: Apr 1, 2019
• Grant date: Jan 5, 2021
• Expiry date: Apr 24, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/72
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A bushing (116) for a wind turbine rotor blade (104) is provided, the bushing (116) comprising a first bushing end (117) and an opposite second bushing end (118) and a bushing bore (119) which extends in a region between the first bushing end (117) and the second bushing end (118) and comprises a bore longitudinal axis (120); wherein, along the bore longitudinal axis (120) in the direction of the second bushing end (118), the bushing bore (119) comprises a threaded portion (127), and wherein the bushing (116) comprises a bushing runout (128) that follows the threaded portion (127), the bushing runout comprising a widening portion (131) of the bushing bore (119), in which a diameter (132) of the bushing bore (119) enlarges at least monotonically while an increase in diameter decreases at least monotonically.