Patents by Inventor Michaela EHRICH

Michaela EHRICH 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).

  • Steam turbine stage measurement system and a method
    Patent number: 10267178
    Abstract: Embodiments of the present invention relate to the calculation of an absolute and relative axial displacement in a steam turbine between a stationary vane row and a rotating blade row steam turbine. This is achieved by using a measurement signal of an outer casing absolute axial expansion sensor, a measurement signal of an inner to outer casing differential axial expansion sensor and a measurement signal for a rotor to outer casing differential axial expansion sensor.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: April 23, 2019
    Assignee: General Electric Company
    Inventors: Rolf Doebler, Michaela Ehrich, Thomas Schreier, Steffen Lehmann
  • STEAM TURBINE STAGE MEASUREMENT SYSTEM AND A METHOD
    Publication number: 20170067360
    Abstract: Embodiments of the present invention relate to the calculation of an absolute and relative axial displacement in a steam turbine between a stationary vane row and a rotating blade row steam turbine. This is achieved by using a measurement signal of an outer casing absolute axial expansion sensor, a measurement signal of an inner to outer casing differential axial expansion sensor and a measurement signal for a rotor to outer casing differential axial expansion sensor.
    Type: Application
    Filed: September 2, 2016
    Publication date: March 9, 2017
    Inventors: Rolf DOEBLER, Michaela EHRICH, Thomas SCHREIER, Steffen LEHMANN