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).
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Patent number: 10563769Abstract: 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: GrantFiled: January 6, 2017Date of Patent: February 18, 2020Assignee: MTU Aero Engines AGInventors: Alexander Gindorf, Joachim Bamberg, Guenter Zenzinger
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Patent number: 10201845Abstract: 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: GrantFiled: April 18, 2016Date of Patent: February 12, 2019Assignee: MTU Aero Engines AGInventors: Alexander Gindorf, Roland Huttner, Martin Fessler-Knobel, Julian Weber, Christoph Cernay
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Publication number: 20170204975Abstract: 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: ApplicationFiled: January 6, 2017Publication date: July 20, 2017Inventors: Alexander Gindorf, Joachim Bamberg, Guenter Zenzinger
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Publication number: 20160327160Abstract: 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: ApplicationFiled: April 18, 2016Publication date: November 10, 2016Inventors: Alexander Gindorf, Roland Huttner, Martin Fessler-Knobel, Julian Weber, Christoph Cernay
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Publication number: 20160245120Abstract: 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: ApplicationFiled: February 18, 2016Publication date: August 25, 2016Inventors: Dagobert GOEPFERT, Alexander GINDORF, Marcus KLEMM
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Patent number: 9333576Abstract: 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: GrantFiled: December 18, 2008Date of Patent: May 10, 2016Assignee: MTU AERO ENGINES AGInventors: Erwin Bayer, Matija Burger, Martin Bussmann, Alexander Gindorf, Albin Platz
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Patent number: 9333589Abstract: 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: GrantFiled: March 14, 2007Date of Patent: May 10, 2016Assignee: MTU Aero Engines GmbHInventors: Herbert Hanrieder, Alexander Gindorf, Reinhold Meier
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Patent number: 9302351Abstract: 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: GrantFiled: July 24, 2008Date of Patent: April 5, 2016Assignee: MTU Aero Engines GmbHInventors: Joachim Bamberg, Roland Hessert, Wilhelm Satzger, Thomas Mack, Alexander Gindorf, Martina Mack, Legal Representative
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Patent number: 9114476Abstract: 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: GrantFiled: July 19, 2011Date of Patent: August 25, 2015Assignee: MTU AERO ENGINES GMBHInventors: Alexander Gindorf, Marcus Klemm
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Patent number: 9102003Abstract: 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: GrantFiled: August 11, 2009Date of Patent: August 11, 2015Assignee: MTU Aero Engines GmbHInventors: Joachim Bamberg, Alexander Gindorf, Herbert Hanrieder
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Patent number: 8961129Abstract: 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: GrantFiled: March 14, 2007Date of Patent: February 24, 2015Assignee: MTU Aero Engines GmbHInventors: Herbert Hanrieder, Alexander Gindorf
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Publication number: 20120024826Abstract: 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: ApplicationFiled: March 25, 2010Publication date: February 2, 2012Applicant: MTU Areo Engines GmbHInventors: Joachim Bamberg, Alexander Gindorf, Guenter Zenzinger, Ulrich Retze
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Publication number: 20120027603Abstract: 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: ApplicationFiled: July 19, 2011Publication date: February 2, 2012Applicant: MTU AERO ENGINES GMBHInventors: Alexander Gindorf, Marcus Klemm
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Publication number: 20110268890Abstract: 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: ApplicationFiled: April 21, 2010Publication date: November 3, 2011Applicant: MTU Aero Engines GMBHInventors: Alexander Gindorf, Herbert Hanrieder
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Publication number: 20110226755Abstract: 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: ApplicationFiled: August 11, 2009Publication date: September 22, 2011Applicant: MTU Aero Engines GmbHInventors: Joachim Bamberg, Alexander Gindorf, Herbert Hanrieder
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Publication number: 20110126943Abstract: 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: ApplicationFiled: July 24, 2008Publication date: June 2, 2011Applicant: MTU Aero Engines GmbHInventors: Joachim Bamberg, Roland Hessert, Wilhelm Satzger, Thomas Mack, Alexander Gindorf
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Publication number: 20110002789Abstract: 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: ApplicationFiled: December 18, 2008Publication date: January 6, 2011Applicant: MTU AERO ENGINES GMBHInventors: Erwin Bayer, Matija Burger, Martin Bussmann, Alexander Gindorf, Albin Platz
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Publication number: 20100181298Abstract: 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: ApplicationFiled: May 17, 2008Publication date: July 22, 2010Applicant: MTU AERO ENGINES GMBHInventors: Alexander Gindorf, Herbert Hanrieder, Hans Pappert
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Publication number: 20100158691Abstract: 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: ApplicationFiled: March 14, 2007Publication date: June 24, 2010Applicant: MTU Aero Engines GmbHInventors: Herbert Hanrieder, Alexander Gindorf, Reinhold Meier
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Publication number: 20100098551Abstract: 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: ApplicationFiled: February 28, 2008Publication date: April 22, 2010Applicant: MTU Aero Engines GmbHInventors: Herbert Hanrieder, Alexander Gindorf, Hans Pappert