Patents by Inventor Alexander Gindorf

Alexander Gindorf 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: 10563769
    Abstract: The invention relates to a method for manufacturing a brush seal with inclined bristles. In order to be able to manufacture these brush seals in an especially cost-effective manner, at least the following steps are provided: provision of a brush blank with at least one metal thread or wire packing fastened at or in at least one wire core; local, at least partial heating of at least the wire core and/or a subregion of the thread or wire packing adjacent to the wire core, by a current flow through the wire core; bending of the thread or wire packing relative to the wire core for producing of the inclined position of the bristles of the brush seal. The invention further relates to an apparatus for manufacturing brush seals and a brush seal for a turbomachine, in particular for an aircraft engine.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: February 18, 2020
    Assignee: MTU Aero Engines AG
    Inventors: Alexander Gindorf, Joachim Bamberg, Guenter Zenzinger
  • Patent number: 10201845
    Abstract: The invention relates to a device and a corresponding method for manufacturing brush seals with obliquely positioned bristles. The method comprises the following steps: As the first step, a metal filament or wire (50) comprising a material for bristles is wound over two wire cores (42, 46) disposed at a distance from and running parallel to one another, to form a tightly packed metal filament or wire package (48). As the next step, the metal filament or wire package (48) is fastened to at least one wire core (42, 46). Then the region around at least one of the two wire cores (42, 46) is locally heated. Subsequently, at least one of the two wire cores (42, 46) is displaced.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: February 12, 2019
    Assignee: MTU Aero Engines AG
    Inventors: Alexander Gindorf, Roland Huttner, Martin Fessler-Knobel, Julian Weber, Christoph Cernay
  • Publication number: 20170204975
    Abstract: The invention relates to a method for manufacturing a brush seal with inclined bristles. In order to be able to manufacture these brush seals in an especially cost-effective manner, at least the following steps are provided: provision of a brush blank with at least one metal thread or wire packing fastened at or in at least one wire core; local, at least partial heating of at least the wire core and/or a subregion of the thread or wire packing adjacent to the wire core, by a current flow through the wire core; bending of the thread or wire packing relative to the wire core for producing of the inclined position of the bristles of the brush seal. The invention further relates to an apparatus for manufacturing brush seals and a brush seal for a turbomachine, in particular for an aircraft engine.
    Type: Application
    Filed: January 6, 2017
    Publication date: July 20, 2017
    Inventors: Alexander Gindorf, Joachim Bamberg, Guenter Zenzinger
  • Publication number: 20160327160
    Abstract: The invention relates to a device and a corresponding method for manufacturing brush seals with obliquely positioned bristles. The method comprises the following steps: As the first step, a metal filament or wire (50) comprising a material for bristles is wound over two wire cores (42, 46) disposed at a distance from and running parallel to one another, to form a tightly packed metal filament or wire package (48). As the next step, the metal filament or wire package (48) is fastened to at least one wire core (42, 46). Then the region around at least one of the two wire cores (42, 46) is locally heated. Subsequently, at least one of the two wire cores (42, 46) is displaced.
    Type: Application
    Filed: April 18, 2016
    Publication date: November 10, 2016
    Inventors: Alexander Gindorf, Roland Huttner, Martin Fessler-Knobel, Julian Weber, Christoph Cernay
  • Publication number: 20160245120
    Abstract: The invention relates to a method for producing a component, in particular a housing (30) of a gas turbine. Firstly, a rotationally symmetrical forged blank (2) is provided. Then, additional material composed of at least one substance is applied to the surface of the blank (18, 20) at at least one location. Subsequently, material is removed until the final contour of the finished component (30) is attained.
    Type: Application
    Filed: February 18, 2016
    Publication date: August 25, 2016
    Inventors: Dagobert GOEPFERT, Alexander GINDORF, Marcus KLEMM
  • Patent number: 9333589
    Abstract: A component, in particular a component of a gas turbine, is described composed of at least two metallic structural elements, the first structural element having a first joining surface, and the second structural element having a second joining surface, and the structural elements being joined via their joining surfaces by an inductive high-frequency pressure welding. One of the joining surfaces is shaped to widen peripherally in comparison to the other joining surface, and an upsetting deformation produced in a join region in response to the joining of the structural elements rests virtually entirely within and, in particular, on a peripheral collar formed by the peripheral widening of the one joining surface. A method is described for joining metallic structural elements, in particular structural elements of a gas turbine, an inductive high-frequency pressure welding being used to join corresponding joining surfaces of the structural elements.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: May 10, 2016
    Assignee: MTU Aero Engines GmbH
    Inventors: Herbert Hanrieder, Alexander Gindorf, Reinhold Meier
  • Patent number: 9333576
    Abstract: The invention relates to a method for producing and repairing a part comprising at least two joined metal components, especially components of a gas turbine. In said method, corresponding joining surfaces of the components are joined together and connected by means of a pressure welding process, a machining allowance in the area of a joining zone of the two joining surfaces is upset during the joining process, and once the two components have been joined together, the machining allowance is machined by means of a precise electrochemical machining (PECM) process until a predefined final contour of the part has been obtained. The invention further relates to a gas turbine part obtained by means of the disclosed method.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: May 10, 2016
    Assignee: MTU AERO ENGINES AG
    Inventors: Erwin Bayer, Matija Burger, Martin Bussmann, Alexander Gindorf, Albin Platz
  • Patent number: 9302351
    Abstract: The invention relates to a method for joining two components (10, 12) made of a metal material, which are connected on two mutually associated joining surfaces (14, 16) by means of a joined connection, wherein at least one of the components (10) is strengthened in at least a partial region of the joining surface (14) thereof prior to joining. The invention further relates to a joined connection of two components (10, 12) made of a metal material.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: April 5, 2016
    Assignee: MTU Aero Engines GmbH
    Inventors: Joachim Bamberg, Roland Hessert, Wilhelm Satzger, Thomas Mack, Alexander Gindorf, Martina Mack, Legal Representative
  • Patent number: 9114476
    Abstract: The invention relates to a high-pressure compressor of a gas turbine having at least one blisk, specifically a disk with a plurality of blades that are disposed on the disk, wherein the blisk has at least one titanium material from the group that comprises Ti-6246 and Ti-6242, wherein the materials of the disk and the blades of the blisk differ in their chemical composition and/or their microstructure. The blades are welded to the disk, in particular, by means of a pressure welding method supported by high-frequency current, whereby the current is conducted through the joint surfaces and leads to local limited melting therein.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: August 25, 2015
    Assignee: MTU AERO ENGINES GMBH
    Inventors: Alexander Gindorf, Marcus Klemm
  • Patent number: 9102003
    Abstract: A method for joining at least two components by inductive high-frequency pressure welding is disclosed. The first component has a first material structure with a first hardness and the second component has a second material structure with a second hardness which is smaller than the first hardness. Both components are inductively heated in the region of the joining surfaces and are subsequently pressed together by a compressive force. The joining surface of the first component with the first hardness, which is greater than the second hardness of the second component, is pre-contoured in a spherical, conical or convex manner prior to joining the two components.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: August 11, 2015
    Assignee: MTU Aero Engines GmbH
    Inventors: Joachim Bamberg, Alexander Gindorf, Herbert Hanrieder
  • Patent number: 8961129
    Abstract: A method for connecting metallic components, in particular components of a gas turbine, including: corresponding connecting surfaces of the components being connected by means of inductive HF pressure welding, and that during or after a sufficiently great heating of the connecting surfaces, the first component is moved by a definite path toward the second component, and is pressed against it and held there.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: February 24, 2015
    Assignee: MTU Aero Engines GmbH
    Inventors: Herbert Hanrieder, Alexander Gindorf
  • Publication number: 20120024826
    Abstract: A method for welding two components is disclosed. In an embodiment, the method includes the following process steps. The two components are positioned such that the joining surfaces are opposite each other, at a short distance from each other. A high-frequency electrical current is conducted through the two components, heating the components at least in the region of the joining surfaces. The two components are pressed against each other such that the two joining surfaces are welded together.
    Type: Application
    Filed: March 25, 2010
    Publication date: February 2, 2012
    Applicant: MTU Areo Engines GmbH
    Inventors: Joachim Bamberg, Alexander Gindorf, Guenter Zenzinger, Ulrich Retze
  • Publication number: 20120027603
    Abstract: The invention relates to a high-pressure compressor of a gas turbine having at least one blisk, specifically a disk with a plurality of blades that are disposed on the disk, wherein the blisk has at least one titanium material from the group that comprises Ti-6246 and Ti-6242, wherein the materials of the disk and the blades of the blisk differ in their chemical composition and/or their microstructure. The blades are welded to the disk, in particular, by means of a pressure welding method supported by high-frequency current, whereby the current is conducted through the joint surfaces and leads to local limited melting therein.
    Type: Application
    Filed: July 19, 2011
    Publication date: February 2, 2012
    Applicant: MTU AERO ENGINES GMBH
    Inventors: Alexander Gindorf, Marcus Klemm
  • Publication number: 20110268890
    Abstract: A device (20) for inductively heating at least one region (12, 14) of a component (10) includes a coil device (30) for generating a magnetic field in at least the region (12, 14) of the component (10) and includes an auxiliary member (40) to be configured adjacently to the component (10) in the magnetic field of the coil device (30) in such a way that the auxiliary member (40) faces the component (10) in a direction that is orthogonal or substantially orthogonal to the direction of a magnetic field that the coil device (30) can generate in the region between the component (10) and the auxiliary member (40).
    Type: Application
    Filed: April 21, 2010
    Publication date: November 3, 2011
    Applicant: MTU Aero Engines GMBH
    Inventors: Alexander Gindorf, Herbert Hanrieder
  • Publication number: 20110226755
    Abstract: A method for joining at least two components by inductive high-frequency pressure welding is disclosed. The first component has a first material structure with a first hardness and the second component has a second material structure with a second hardness which is smaller than the first hardness. Both components are inductively heated in the region of the joining surfaces and are subsequently pressed together by a compressive force. The joining surface of the first component with the first hardness, which is greater than the second hardness of the second component, is pre-contoured in a spherical, conical or convex manner prior to joining the two components.
    Type: Application
    Filed: August 11, 2009
    Publication date: September 22, 2011
    Applicant: MTU Aero Engines GmbH
    Inventors: Joachim Bamberg, Alexander Gindorf, Herbert Hanrieder
  • Publication number: 20110126943
    Abstract: The invention relates to a method for joining two components (10, 12) made of a metal material, which are connected on two mutually associated joining surfaces (14, 16) by means of a joined connection, wherein at least one of the components (10) is strengthened in at least a partial region of the joining surface (14) thereof prior to joining. The invention further relates to a joined connection of two components (10, 12) made of a metal material.
    Type: Application
    Filed: July 24, 2008
    Publication date: June 2, 2011
    Applicant: MTU Aero Engines GmbH
    Inventors: Joachim Bamberg, Roland Hessert, Wilhelm Satzger, Thomas Mack, Alexander Gindorf
  • Publication number: 20110002789
    Abstract: The invention relates to a method for producing and repairing a part comprising at least two joined metal components, especially components of a gas turbine. In said method, corresponding joining surfaces of the components are joined together and connected by means of a pressure welding process, a machining allowance in the area of a joining zone of the two joining surfaces is upset during the joining process, and once the two components have been joined together, the machining allowance is machined by means of a precise electrochemical machining (PECM) process until a predefined final contour of the part has been obtained. The invention further relates to a gas turbine part obtained by means of the disclosed method.
    Type: Application
    Filed: December 18, 2008
    Publication date: January 6, 2011
    Applicant: MTU AERO ENGINES GMBH
    Inventors: Erwin Bayer, Matija Burger, Martin Bussmann, Alexander Gindorf, Albin Platz
  • Publication number: 20100181298
    Abstract: An induction coil for use in a method for the inductive heating of metallic components, particularly components of a gas turbine, is disclosed. The coil includes at least two windings and the distance between the individual windings is configured such that the component or components to be heated can be inserted between two windings that are spaced apart from each other. A method and a device for the inductive heating of metallic components, particularly components of a gas turbine, and to a component produced by the method is also disclosed.
    Type: Application
    Filed: May 17, 2008
    Publication date: July 22, 2010
    Applicant: MTU AERO ENGINES GMBH
    Inventors: Alexander Gindorf, Herbert Hanrieder, Hans Pappert
  • Publication number: 20100158691
    Abstract: A component, in particular a component of a gas turbine, is described composed of at least two metallic structural elements, the first structural element having a first joining surface, and the second structural element having a second joining surface, and the structural elements being joined via their joining surfaces by an inductive high-frequency pressure welding. One of the joining surfaces is shaped to widen peripherally in comparison to the other joining surface, and an upsetting deformation produced in a join region in response to the joining of the structural elements rests virtually entirely within and, in particular, on a peripheral collar formed by the peripheral widening of the one joining surface. A method is described for joining metallic structural elements, in particular structural elements of a gas turbine, an inductive high-frequency pressure welding being used to join corresponding joining surfaces of the structural elements.
    Type: Application
    Filed: March 14, 2007
    Publication date: June 24, 2010
    Applicant: MTU Aero Engines GmbH
    Inventors: Herbert Hanrieder, Alexander Gindorf, Reinhold Meier
  • Publication number: 20100098551
    Abstract: The present invention relates to a method for coating components of a gas turbine, in particular for producing a wear-resistant, temperature, oxidation and/or corrosion-resistant protective coating on the component, wherein the protective coating is made of at least one solder film or slurry coating, which is connected to the corresponding region of the component by means of an inductive high-temperature soldering method. The bonded connection between the component and the solder film or slurry coating disposed on the component is achieved by locally heating the component in the region of the solder film or slurry coating to be applied, and simultaneously heating the solder film or slurry coating by means of thermal energy generated and emitted by at least one induction amplifier, wherein the induction amplifier is disposed between the inductor and the component in the region of the solder film or slurry coating.
    Type: Application
    Filed: February 28, 2008
    Publication date: April 22, 2010
    Applicant: MTU Aero Engines GmbH
    Inventors: Herbert Hanrieder, Alexander Gindorf, Hans Pappert