Patents by Inventor Ulrike Kaul

Ulrike Kaul 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).

  • Reduction of equally spaced turbine nozzle vane excitation
    Patent number: 9963974
    Abstract: A reduction in excitation amplitudes affecting turbine blade durability in a turbine nozzle assembly having a plurality of vanes and turbine blades, includes: identifying a turbine blade design of the turbine nozzle assembly; performing a modal model analysis of at least one of the turbine blades in the turbine blade design; reducing aerodynamic impact by ensuring that each of the turbine blades is free of aero-excitation from an upstream flow at the vanes in an operating speed range; identifying blade natural frequencies with respect to the nozzle vanes; and modifying a trailing edge of at least one of the vanes to reduce the excitation amplitudes.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: May 8, 2018
    Assignee: United Technologies Corporation
    Inventors: Loc Quang Duong, Xiaolan Hu, Gao Yang, Steven R. Falconer, Ralph E. Gordon, Jesus A. Garcia, Dan G. Sapiro, Ulrike Kaul, Gregory G. Johnson, Benjamin E. Fishler