Patents by Inventor David Rittinger

David Rittinger 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).

  • Method and apparatus for determining upvalue factors for expansion measurements on machine elements
    Patent number: 12270732
    Abstract: The present invention relates to an apparatus and a method for determining a scaling factor for a strain measurement in a machine element, comprising steps for measuring a strain in a measurement surface portion by means of a strain measuring device; for measuring a displacement of a detection surface portion of the machine element by an optical scanning; for determining a displacement field on a surface of the machine element on the basis of a model of the machine element and the measured displacement of the at least one detection surface portion; for determining a strain field on the surface of the machine element on the basis of the determined displacement field and the model of the machine element; and for determining a scaling factor of the strain measuring device on the basis of the determined strain field and the measured strain in the measurement surface portion.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: April 8, 2025
    Assignee: MTU Aero Engines AG
    Inventors: David Rittinger, Ulrich Retze, Joerg Reschke, Wilhelm Meir, Michael Junge, Stefan Schwarz
  • METHOD AND APPARATUS FOR DETERMINING UPVALUE FACTORS FOR EXPANSION MEASUREMENTS ON MACHINE ELEMENTS
    Publication number: 20230008848
    Abstract: The present invention relates to an apparatus and a method for determining a scaling factor for a strain measurement in a machine element, comprising steps for measuring a strain in a measurement surface portion by means of a strain measuring device; for measuring a displacement of a detection surface portion of the machine element by an optical scanning; for determining a displacement field on a surface of the machine element on the basis of a model of the machine element and the measured displacement of the at least one detection surface portion; for determining a strain field on the surface of the machine element on the basis of the determined displacement field and the model of the machine element; and for determining a scaling factor of the strain measuring device on the basis of the determined strain field and the measured strain in the measurement surface portion.
    Type: Application
    Filed: December 8, 2020
    Publication date: January 12, 2023
    Applicant: MTU Aero Engines AG
    Inventors: David Rittinger, Ulrich Retze, Joerg Reschke, Wilhelm Meir, Michael Junge, Stefan Schwarz