Patents by Inventor Markus Lempke

Markus Lempke 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).

  • Rotor-blade tip including cooling configuration
    Patent number: 12345176
    Abstract: A turbine rotor having an improved rotor tip, which has at least one cooling channel in the rotor blade, the cooling channel, in the region of its cuspidal point, having at least one locally limited constriction that is caused by a thickened portion at the end of a partition of the cooling channel.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: July 1, 2025
    Assignee: Siemens Energy Global GmbH & Co. KG
    Inventors: Björn Anders, Constantin Garske, Kay Krabiell, Heiko Lammers, Markus Lempke, Ricardo Nilsson, Daniel Vöhringer
  • ROTOR-BLADE TIP INCLUDING COOLING CONFIGURATION
    Publication number: 20240229650
    Abstract: A turbine rotor having an improved rotor tip, which has at least one cooling channel in the rotor blade, the cooling channel, in the region of its cuspidal point, having at least one locally limited constriction that is caused by a thickened portion at the end of a partition of the cooling channel.
    Type: Application
    Filed: April 5, 2022
    Publication date: July 11, 2024
    Applicant: Siemens Energy Global GmbH & Co. KG
    Inventors: Björn Anders, Constantin Garske, Kay Krabiell, Heiko Lammers, Markus Lempke, Ricardo Nilsson, Daniel Vöhringer
  • Method for producing a cavity in a blade platform; corresponding blade
    Patent number: 11224926
    Abstract: A method for producing a cavity in a blade platform of a blade, in particular of a turbine blade, as part of a blade-platform cooling system, wherein the method has the steps of: producing a first bore from a first platform lateral face in the direction of an opposite second platform lateral face, with a first opening in the first platform lateral face being created, and expanding the first bore in a fan-like manner by an electrical discharge machining method, in particular using a wire- or bar-form electrode, such that the first opening, created in the first step, of the first bore represents the starting point of the fan-like expansion. A blade is produced in particular with such a method.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: January 18, 2022
    Assignee: Siemens Energy Global GmbH & Co. KG
    Inventors: Fathi Ahmad, Daniela Koch, Markus Lempke, Thorsten Mattheis, Axel Podschwadek, Radan Radulovic, Anne Weidenmüller
  • METHOD FOR PRODUCING A CAVITY IN A BLADE PLATFORM; CORRESPONDING BLADE
    Publication number: 20200141245
    Abstract: A method for producing a cavity in a blade platform of a blade, in particular of a turbine blade, as part of a blade-platform cooling system, wherein the method has the steps of: producing a first bore from a first platform lateral face in the direction of an opposite second platform lateral face, with a first opening in the first platform lateral face being created, and expanding the first bore in a fan-like manner by an electrical discharge machining method, in particular using a wire- or bar-form electrode, such that the first opening, created in the first step, of the first bore represents the starting point of the fan-like expansion. A blade is produced in particular with such a method.
    Type: Application
    Filed: January 10, 2018
    Publication date: May 7, 2020
    Applicant: Siemens Aktiengesellschaft
    Inventors: Fathi Ahmad, Daniela Koch, Markus Lempke, Thorsten Mattheis, Axel Podschwadek, Radan Radulovic, Anne Weidenmüller