Patents by Inventor Jens GROENAGER

Jens GROENAGER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20160153426
    Abstract: The economic efficiency of wind turbines improves by upscaling but the weight to strength ratio deteriorates. This is especially true for the large shaft and bearing of the rotor, the gearbox and the generator. Solutions to this was the gearless generator, getting heavy because the amount of magnetic material is inversely proportional to speed, or several smaller generators adapted to the wind on a distribution gear as shown in references (1), (2) and (3). The large roller bearing of the rotor has relatively large bearing clearance so only the top or lower rollers bear the entire weight of the rotor and thus must be dimensioned relatively large. The present invention spreads the load on the support bearing to more rollers and to smaller faster running and thereby lighter generators. It has the rotor attached to the outer ring, each roller rotatably mounted to the nacelle and the inner ring free wheeling.
    Type: Application
    Filed: July 4, 2013
    Publication date: June 2, 2016
    Inventor: Jens GROENAGER