Patents by Inventor Heinz-Peter SCHIFFER

Heinz-Peter SCHIFFER 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).

  • Cooled turbine blades for a gas-turbine engine
    Patent number: 9051841
    Abstract: The present invention relates to a cooled turbine blade for a gas-turbine engine having at least one cooling duct (14) extending radially, relative to a rotary axis of the gas-turbine engine, inside the airfoil and air-supply ducts (12) issuing into said cooling duct, characterized in that the cooling duct (14) extends into the blade root (6) in order to generate close to the wall a cooling airflow moved at high circumferential velocity and radially in helical form and that in the area of the blade root (6) at least one nozzle-shaped air-supply duct (12) issues into the cooling duct (14) tangentially or with a tangential velocity component.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: June 9, 2015
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Erik Janke, Jens Taege, Thomas Schiessl, Sebastian Meier, Heinz-Peter Schiffer, Nils Winter, Knut Lehmann
  • COOLED TURBINE BLADES FOR A GAS-TURBINE ENGINE
    Publication number: 20120076665
    Abstract: The present invention relates to a cooled turbine blade for a gas-turbine engine having at least one cooling duct (14) extending radially, relative to a rotary axis of the gas-turbine engine, inside the airfoil and air-supply ducts (12) issuing into said cooling duct, characterized in that the cooling duct (14) extends into the blade root (6) in order to generate close to the wall a cooling airflow moved at high circumferential velocity and radially in helical form and that in the area of the blade root (6) at least one nozzle-shaped air-supply duct (12) issues into the cooling duct (14) tangentially or with a tangential velocity component.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 29, 2012
    Applicant: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Erik JANKE, Jens TAEGE, Thomas SCHIESSL, Sebastian MEIER, Heinz-Peter SCHIFFER, Nils WINTER, Knut LEHMANN