Patents by Inventor Rolf Ewen

Rolf Ewen 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).

  • Patent number: 12698758
    Abstract: A method is provided for monitoring the temperature of an electric generator of a wind turbine, wherein the generator has a stator, a rotor and a temperature monitoring unit. The temperature monitoring unit has a passive control element on the rotor and a receiving unit on the stator. A change in temperature on the rotor leads to a mechanical or optical change in the passive control element. The mechanical or optical change in the passive control element is acquired by the receiving unit on the stator.
    Type: Grant
    Filed: February 4, 2025
    Date of Patent: August 4, 2026
    Assignee: WOBBEN PROPERTIES GMBH
    Inventors: Hussam Daboul, Rolf Ewen, Michael Müller
  • Publication number: 20250250965
    Abstract: A method is provided for monitoring the temperature of an electric generator of a wind turbine, wherein the generator has a stator, a rotor and a temperature monitoring unit. The temperature monitoring unit has a passive control element on the rotor and a receiving unit on the stator. A change in temperature on the rotor leads to a mechanical or optical change in the passive control element. The mechanical or optical change in the passive control element is acquired by the receiving unit on the stator.
    Type: Application
    Filed: February 4, 2025
    Publication date: August 7, 2025
    Applicant: Wobben Properties GmbH
    Inventors: Hussam Daboul, Rolf Ewen, Michael Müller