Patents by Inventor Andrew Lohaus

Andrew Lohaus 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).

  • Gas turbine blade and method for producing such blade
    Patent number: 11396817
    Abstract: A gas turbine blade having a casted metal airfoil, the airfoil has a main wall defining at least one interior cavity, having a first side wall and a second side wall, which are coupled to each other at a leading edge and a trailing edge, extending in a radial direction from a blade root to a blade tip and defining a radial span from 0% at the blade root to 100% at the blade tip. The main airfoil has a radial span dependent chord length defined by a straight line connecting the leading edge and the trailing edge as well as a radial span dependent solidity ratio of metal area to total cross-sectional area. Solidity ratios in a machined zone of the airfoil from 80% to 85% of span are below 35%, in particular all solidity ratios in the zone.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: July 26, 2022
    Assignee: Siemens Energy Global GmbH & Co. KG
    Inventors: Daniel M. Eshak, Susanne Kamenzky, Andrew Lohaus, Daniel Vöhringer, Samuel R. Miller, Jr.
  • GAS TURBINE BLADE AND METHOD FOR PRODUCING SUCH BLADE
    Publication number: 20200392852
    Abstract: A gas turbine blade having a casted metal airfoil, the airfoil has a main wall defining at least one interior cavity, having a first side wall and a second side wall, which are coupled to each other at a leading edge and a trailing edge, extending in a radial direction from a blade root to a blade tip and defining a radial span from 0% at the blade root to 100% at the blade tip. The main airfoil has a radial span dependent chord length defined by a straight line connecting the leading edge and the trailing edge as well as a radial span dependent solidity ratio of metal area to total cross-sectional area. Solidity ratios in a machined zone of the airfoil from 80% to 85% of span are below 35%, in particular all solidity ratios in the zone.
    Type: Application
    Filed: January 8, 2019
    Publication date: December 17, 2020
    Applicant: Siemens Aktiengesellschaft
    Inventors: Daniel M. Eshak, Susanne Kamenzky, Andrew Lohaus, Daniel Vöhringer, Samuel R. Miller, Jr.