Wind turbine

Patent metadata

Field	Value
Publication number	US-9464625-B2
Application number	US-201214114116-A
Country	US
Kind code	B2
Filing date	Apr 18, 2012
Priority date	Apr 29, 2011
Publication date	Oct 11, 2016
Grant date	Oct 11, 2016

Abstract

There is provided a wind power installation comprising a rotor to which rotor blades can be fitted, an electric generator having a generator stator and a generator rotor, and a plurality of displacement units. The first end of the displacement unit is fastened to the generator stator and the second end of the displacement unit is releasably fastened to the generator rotor. The displacement units each have a respective hydraulic cylinder, the deflection of which is controllable so that by actuation of the displacement unit the generator rotor is displaced relative to the generator stator.

First claim

The invention claimed is:

1. A wind power installation comprising:
an aerodynamic rotor configured to have rotor blades fixed thereto and removed therefrom;
an electric generator having a generator stator and a generator rotor, the generator rotor being directly coupled to the aerodynamic rotor; and
a plurality of displacement units, each having a first end that includes a bracket directly and releasably fastened to the generator stator and a second end that includes a fork directly and releasably fastened to the generator rotor, each of the displacement units having a respective hydraulic cylinder between the fork and the bracket, wherein a deflection of each of the hydraulic cylinders is controllable and causes a displacement of the generator rotor relative to the generator stator whereby rotation of the aerodynamic rotor is effected, wherein the bracket and the fork are fastened to the generator stator and the generator rotor, respectively, while rotor blades are being fixed to or removed from the aerodynamic rotor.

2. The wind power installation according to claim 1 wherein the fork is releasably fastened to a brake disc of the generator rotor.

3. The wind power installation according to claim 1 , wherein the generator stator has a plurality of stator arms.

4. The wind power installation according to claim 1 , wherein each respective displacement unit is located between two adjacent stator arms.

5. The wind power installation according to claim 1 , wherein the generator rotor includes a plurality of holes, wherein each of the forks is directly and releasably fastened to the generator rotor at the plurality of holes.

Assignees

• Brenner Albrecht
• Knoop Frank
• Ubben Matthias
• Wobben Properties Gmbh

Inventors

• Brenner Albrecht
• Knoop Frank
• Ubben Matthias

Classifications

• F03D80/00

  Details, components or accessories not provided for in groups F03D1/00 - F03D17/00 · CPC title

• F03D9/25

  the apparatus being an electrical generator (F03D9/22 takes precedence) · CPC title

• H02K15/00

  Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines · CPC title

• H02K7/1838 Primary

  Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine · CPC title

• F05B2220/7066

  via a direct connection, i.e. a gearless transmission · CPC title