Patents by Inventor Jan LÜTJEN

Jan LÜTJEN 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).

  • Device and arrangement for the horizontal preassembly of a wind turbine rotor
    Patent number: 11035345
    Abstract: An adapter device for the horizontal preassembly of a wind turbine rotor includes a connection piece on the underside of the adapter device for fastening the adapter device to a tower system of a tower crane, and a rotor flange on the top side of the adapter device for fastening the rotor hub of the wind turbine rotor to be assembled.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: June 15, 2021
    Assignee: SENVION GmbH
    Inventors: Bernd Schledde, Jan Lütjen
  • Method and system for the maintenance of a wind energy installation from a group of wind energy installations
    Patent number: 10711767
    Abstract: A method for the maintenance of a first wind energy installation from a group of wind energy installations. In the method, a future maintenance time period is identified in which a boost power of the group of wind energy installations is greater than a prescribed threshold value, wherein the boost power results from a wind speed predicted for the future maintenance time period, said wind speed being greater than a rated wind speed. The power of the first wind energy installation is reduced after the start of the maintenance time period and a boost power is drawn from a plurality of wind energy installations from the group of wind energy installations. A maintenance process is carried out at the first wind energy installation. The invention furthermore relates to a control unit suitable for carrying out the method.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: July 14, 2020
    Assignee: Senvion GmbH
    Inventors: Jan Lütjen, Dennis Thiessen
  • Method and System For the Maintenance of a Wind Energy Installation From a Group of Wind Energy Installations
    Publication number: 20190277261
    Abstract: A method for the maintenance of a first wind energy installation from a group of wind energy installations. In the method, a future maintenance time period is identified in which a boost power of the group of wind energy installations is greater than a prescribed threshold value, wherein the boost power results from a wind speed predicted for the future maintenance time period, said wind speed being greater than a rated wind speed. The power of the first wind energy installation is reduced after the start of the maintenance time period and a boost power is drawn from a plurality of wind energy installations from the group of wind energy installations. A maintenance process is carried out at the first wind energy installation. The invention furthermore relates to a control unit suitable for carrying out the method.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 12, 2019
    Inventors: Jan Lütjen, Dennis Thiessen
  • DEVICE AND ARRANGEMENT FOR THE HORIZONTAL PREASSEMBLY OF A WIND TURBINE ROTOR
    Publication number: 20170350371
    Abstract: An adapter device for the horizontal preassembly of a wind turbine rotor includes a connection piece on the underside of the adapter device for fastening the adapter device to a tower system of a tower crane, and a rotor flange on the top side of the adapter device for fastening the rotor hub of the wind turbine rotor to be assembled.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 7, 2017
    Applicant: SENVION GmbH
    Inventors: Bernd SCHLEDDE, Jan LÜTJEN