Patents by Inventor Lars H. Vestergaard

Lars H. Vestergaard 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).

  • MEASUREMENT AND MONITORING OF ROTOR STACK LOAD IN ENGINE
    Publication number: 20250341171
    Abstract: A system includes a tie-shaft configured to rotate about an axis. The system also includes a rotor stack tied to the tie-shaft and configured to rotate with the tie-shaft, the rotor stack comprising multiple rotors. The system further includes a nut coupled to the tie-shaft and configured to apply a tension load to the tie-shaft, resulting in an opposite compression load on the rotor stack. The system also includes at least one sensor coupled to the rotor stack and configured to measure the compression load on the rotor stack. In addition, the system includes at least one processing device configured to receive multiple compression load measurements from the at least one sensor over a time period and determine a change in the compression load over the time period based on the received compression load measurements.
    Type: Application
    Filed: May 2, 2024
    Publication date: November 6, 2025
    Inventors: Kaliya Balamurugan, Ron I. Prihar, Lars H. Vestergaard
  • Overlap interface for a gas turbine engine composite engine case
    Patent number: 8092164
    Abstract: A composite engine case with an axial interface. One configuration includes an alternating mix of full length and partial plies, in order to provide the total thickness needed for the axial overlap. Another configuration provides only full-length structural plies with a flyaway insert adjacent the axial interface.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: January 10, 2012
    Assignee: United Technologies Corporation
    Inventors: Francis R. Moon, Lars H. Vestergaard, Richard W. Monahan
  • OVERLAP INTERFACE FOR A GAS TURBINE ENGINE COMPOSITE ENGINE CASE
    Publication number: 20090060733
    Abstract: A composite engine case with an axial interface. One configuration includes an alternating mix of full length and partial plies, in order to provide the total thickness needed for the axial overlap. Another configuration provides only full-length structural plies with a flyaway insert adjacent the axial interface.
    Type: Application
    Filed: August 30, 2007
    Publication date: March 5, 2009
    Inventors: Francis R. Moon, Lars H. Vestergaard, Richard W. Monahan