Patents by Inventor Stefan Czerner

Stefan Czerner 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).

  • Patent number: 9624781
    Abstract: Embodiments relate to a gas turbine blade for an aircraft engine, the gas turbine blade having a flow leading edge, a flow trailing edge, a suction side, and a pressure side, where the suction side and pressure side extend from the flow leading edge to the flow trailing edge, wherein the gas turbine blade has a damping layer on the flow leading edge and the damping layer comprising at least one matrix material and particles held in position by this matrix material. Further embodiments relate to a method of coating a gas turbine blade and a gas turbine incorporating a plurality of gas turbine blades in accordance with embodiments of the invention.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: April 18, 2017
    Assignee: LUFTHANSA TECHNIK AG
    Inventor: Stefan Czerner
  • Patent number: 9527170
    Abstract: Method for repairing a gas turbine component, which at least at the spot to be repaired consists of a ceramic composite material, where an energy beam locally heats the gas turbine component in a zone, and where one or more auxiliary materials and optionally fibers and/or particles are fed to this zone, wherein a ceramic is generated in the melting zone through the one or more auxiliary materials, and, optionally, the one or more auxiliary materials together with the fibers and/or particles forms a ceramic composite material.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: December 27, 2016
    Assignee: LUFTHANSA TECHNIK AG
    Inventor: Stefan Czerner
  • Patent number: 9289861
    Abstract: Device (1) for recontouring a gas turbine blade (2), comprising: at least one support (6a, 6b) configured to rest on an edge (3a) of the gas turbine blade (2) during the recontouring, at least one side bearing (5a, 5b) configured to rest on the suction- and/or pressure side (3b, 3c) of the gas turbine blade (2) in a lateral direction (7) during the recontouring, a machining unit (4) via which the gas turbine blade (2) is cutting machined in a machining direction (8) along the edge (3a), wherein the machining unit (4) can be displaced perpendicularly to the machining direction (8).
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: March 22, 2016
    Assignee: LUFTHANSA TECHNIK AG
    Inventor: Stefan Czerner
  • Patent number: 9056371
    Abstract: A method for recontouring a blade of a gas turbine includes systematically melting a portion of a leading edge of the blade using an energy beam so as to form a new contour of hardened material substantially without incorporating additional material.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: June 16, 2015
    Assignee: LUFTHANSA TECHNIK AG
    Inventor: Stefan Czerner
  • Patent number: 9040870
    Abstract: A device for recontouring a gas turbine blade includes at least one support configured to rest on an edge of the gas turbine blade during the recontouring, at least one side bearing configured to rest on an intake side or an outlet side of the gas turbine blade during the recontouring and a machining unit for machining the gas turbine blade. The machining unit is configured to fuse at least one partial area of the edge of the gas turbine blade using a beam of energy that is targeted such that material of the blade solidifies into a new contour, substantially without the addition of supplementary material.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: May 26, 2015
    Assignee: LUFTHANSA TECHNIK AG
    Inventor: Stefan Czerner
  • Publication number: 20150013126
    Abstract: Device (1) for recontouring a gas turbine blade (2), comprising: at least one support (6a, 6b) configured to rest on an edge (3a) of the gas turbine blade (2) during the recontouring, at least one side bearing (5a, 5b) configured to rest on the suction- and/or pressure side (3b, 3c) of the gas turbine blade (2) in a lateral direction (7) during the recontouring, a machining unit (4) via which the gas turbine blade (2) is cutting machined in a machining direction (8) along the edge (3a), wherein the machining unit (4) can be displaced perpendicularly to the machining direction (8).
    Type: Application
    Filed: December 17, 2012
    Publication date: January 15, 2015
    Inventor: Stefan Czerner
  • Publication number: 20150003990
    Abstract: Embodiments relate to a gas turbine blade for an aircraft engine, the gas turbine blade having a flow leading edge, a flow trailing edge, a suction side, and a pressure side, where the suction side and pressure side extend from the flow leading edge to the flow trailing edge, wherein the gas turbine blade has a damping layer on the flow leading edge and the damping layer comprising at least one matrix material and particles held in position by this matrix material. Further embodiments relate to a method of coating a gas turbine blade and a gas turbine incorporating a plurality of gas turbine blades in accordance with embodiments of the invention.
    Type: Application
    Filed: January 10, 2013
    Publication date: January 1, 2015
    Inventor: Stefan Czerner
  • Publication number: 20130205554
    Abstract: Method for repairing a gas turbine component, which at least at the spot to be repaired consists of a ceramic composite material, where an energy beam locally heats the gas turbine component in a zone, and where one or more auxiliary materials and optionally fibers and/or particles are fed to this zone, wherein a ceramic is generated in the melting zone through the one or more auxiliary materials, and, optionally, the one or more auxiliary materials together with the fibers and/or particles forms a ceramic composite material.
    Type: Application
    Filed: July 14, 2011
    Publication date: August 15, 2013
    Applicant: LUFTHANSA TECHNIK AG
    Inventor: Stefan Czerner
  • Publication number: 20120047735
    Abstract: A method for recontouring a blade of a gas turbine includes systematically melting a portion of a leading edge of the blade using an energy beam so as to form a new contour of hardened material substantially without incorporating additional material.
    Type: Application
    Filed: August 31, 2011
    Publication date: March 1, 2012
    Applicant: LUFTHANSA TECHNIK AG
    Inventor: Stefan Czerner
  • Publication number: 20080029495
    Abstract: A method for laser welding super alloys is disclosed. The power of the laser (12) is controlled depending on the temperature of the welding bath and a device (10) for laser welding a super alloy, including a laser beam source (12), a process controller (30), a temperature recording unit (28) and a feed device (24) for additional materials, characterized in that the process controller (30) comprises a regulator (34), connected to the temperature recording unit (28) and the laser source (12).
    Type: Application
    Filed: April 13, 2005
    Publication date: February 7, 2008
    Applicant: MTU Aero Engines GmbH
    Inventors: Klaus Emiljanow, Stefan Czerner, Axel Bormann, Karl Lindemann, Peter Stippler, Joerg Werhahn
  • Publication number: 20070017607
    Abstract: A method is provided for heating components before and/or during a further processing thereof. At least one laser device is used as energy source for heating.
    Type: Application
    Filed: April 17, 2004
    Publication date: January 25, 2007
    Applicant: MTU Aero Engines GmbH
    Inventors: Stefan Czerner, Klaus Emiljanow