Patents by Inventor Christian Mark Nielsen

Christian Mark Nielsen 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).

  • Hydraulic transmission methods and apparatus for wind turbines
    Patent number: 9593669
    Abstract: A hydraulic transmission for a wind turbine that includes a rotor, one or more blades mounted to the rotor, a hydraulic pump mechanically connected to the rotor, and a hydraulic motor. The hydraulic pump and the hydraulic motor are connected to one another by a high pressure circuit. The hydraulic pump maybe a variable displacement hydraulic pump and the hydraulic motor may include a variable displacement hydraulic motor. The wind turbine, including the rotor, the blades of the rotor, the hydraulic pump, and the hydraulic motor may be controlled according to different approaches.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: March 14, 2017
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Per Nielsen Lindholdt, Eik Herbsleb, Allan Holm Jørgensen, Christian Mark Nielsen, Hans Henrik Højsgaard, Peter Koldkjær, Kristian Gregerssen
  • HYDRAULIC TRANSMISSION METHODS AND APPARATUS FOR WIND TURBINES
    Publication number: 20140054893
    Abstract: A hydraulic transmission for a wind turbine that includes a rotor, one or more blades mounted to the rotor, a hydraulic pump mechanically connected to the rotor, and a hydraulic motor. The hydraulic pump and the hydraulic motor are connected to one another by a high pressure circuit. The hydraulic pump maybe a variable displacement hydraulic pump and the hydraulic motor may include a variable displacement hydraulic motor. The wind turbine, including the rotor, the blades of the rotor, the hydraulic pump, and the hydraulic motor may be controlled according to different approaches.
    Type: Application
    Filed: January 30, 2012
    Publication date: February 27, 2014
    Applicant: VESTAS WIND SYSTEMS A/S
    Inventors: Per Nielsen Lindholdt, Eik Herbsleb, Allan Holm Jørgensen, Christian Mark Nielsen, Hans Henrik Højsgaard, Peter Koldkjær, Kristian Gregerssen