Patents Assigned to MTU
  • METHOD AND APPARATUS FOR DETERMINING UPVALUE FACTORS FOR EXPANSION MEASUREMENTS ON MACHINE ELEMENTS
    Publication number: 20230008848
    Abstract: The present invention relates to an apparatus and a method for determining a scaling factor for a strain measurement in a machine element, comprising steps for measuring a strain in a measurement surface portion by means of a strain measuring device; for measuring a displacement of a detection surface portion of the machine element by an optical scanning; for determining a displacement field on a surface of the machine element on the basis of a model of the machine element and the measured displacement of the at least one detection surface portion; for determining a strain field on the surface of the machine element on the basis of the determined displacement field and the model of the machine element; and for determining a scaling factor of the strain measuring device on the basis of the determined strain field and the measured strain in the measurement surface portion.
    Type: Application
    Filed: December 8, 2020
    Publication date: January 12, 2023
    Applicant: MTU Aero Engines AG
    Inventors: David Rittinger, Ulrich Retze, Joerg Reschke, Wilhelm Meir, Michael Junge, Stefan Schwarz
  • Method for producing a component of gamma—TiAl and component produced therefrom
    Patent number: 11542582
    Abstract: The present invention relates to a method for producing a component of a ?-TiAl alloy, in which, in a first step, a forging blank made of a ?-TiAl alloy is built up from a powder material by an additive method, and subsequently, in a second step, the forging blank is reshaped into a semi-finished product, wherein the degree of reshaping over the entire forging blank is high enough that, in a third step, the structure is recrystallized during a heat treatment. In addition, the invention relates to a component produced therefrom.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: January 3, 2023
    Assignee: MTU Aero Engines AG
    Inventor: Martin Schloffer
  • METHOD AND DEVICE FOR ELECTROCHEMICALLY TREATING COMPONENTS
    Publication number: 20220410297
    Abstract: The invention relates to a device and a method for electrochemically treating a component, comprising at least one electrode which has at least one working surface with an outer contour that is shaped so as complement the surface of the component to be produced, thereby forming a gap, and comprising at least one contour surface which adjoins said working surface and in which at least one cleaning opening is arranged, a cleaning fluid flowing through said cleaning opening. According to the method, at least one component is provided, a voltage is applied between the component and the at least one electrode during the electrochemical treatment, and the electrode is moved relative to the component.
    Type: Application
    Filed: August 13, 2020
    Publication date: December 29, 2022
    Applicant: MTU Aero Engines AG
    Inventors: Nicole Feiling, Markus Zeis, Roland Huttner, Christian Doll
  • Variable turbomachine vane
    Patent number: 11525369
    Abstract: A vane assembly for a turbomachine includes a variable vane (10-15), the vane having at least one first, in particular plane or curved, engagement surface (11; 11?) for clamping, in particular without play, an actuator (20) of the vane assembly for adjustment of the vane, this first engagement surface not being inclined toward a longitudinal axis (L) of the vane or being inclined toward it by no more than 15°, and/or the vane assembly including a clamp (30; 31) for clamping the actuator against the first engagement surface by at least partially elastically compressing the clamp transversely to the longitudinal axis of the vane and/or by advancing the clamp in a clamp direction (S) that forms an angle of at least 45° with the longitudinal axis of the vane.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: December 13, 2022
    Assignee: MTU Aero Engines AG
    Inventors: Vitalis Mairhanser, Manuel Hein, Axel Stettner
  • Bearing chamber housing for a turbomachine
    Patent number: 11519296
    Abstract: A bearing chamber housing for supporting a shaft of a turbomachine is provided, the bearing chamber housing including an additively built-up housing wall which bounds an oil chamber of the bearing chamber housing radially outwardly relative to an axis of rotation of the shaft, the housing wall being built up with an oil duct which has an inlet opening toward the oil chamber for admission of oil from the oil chamber into the oil duct, and which has an outlet opening for discharging the oil from the oil duct, the outlet opening being located at a different axial position and at a different circumferential position than the inlet opening, considered relative to the axis of rotation of the shaft, and the oil duct having an extent with both an axial component and a circumferential component, at least over a portion thereof.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: December 6, 2022
    Assignee: MTU Aero Engines AG
    Inventors: Frank Stiehler, Georg Kempinger, Juergen Kraus, Steffen Schlothauer, Christian Liebl, Alois Eichinger, Thomas Koebke
  • METHOD FOR INVESTIGATING AN ELECTROLYTE SOLUTION FOR PROCESSING A COMPONENT MATERIAL OF AN AIRCRAFT ENGINE
    Publication number: 20220381682
    Abstract: A method for investigating an electrolyte solution for processing a component, particularly a component or a component material of an aircraft engine, by near infrared spectroscopy.
    Type: Application
    Filed: May 26, 2022
    Publication date: December 1, 2022
    Applicant: MTU Aero Engines AG
    Inventors: Nicole Feiling, Johann Auerweck
  • METHOD FOR COATING A COMPONENT OF A TURBOMACHINE
    Publication number: 20220380931
    Abstract: The present invention relates to a method for coating a component of a turbomachine in a bath, in which method, the component is partially immersed in the bath containing a coating material; the component is rotated at least intermittently around an axis of rotation, which lies outside of the bath, during the at least partial immersion; the component is at most immersed partially over and beyond the rotation.
    Type: Application
    Filed: May 26, 2022
    Publication date: December 1, 2022
    Applicant: MTU Aero Engines AG
    Inventors: Christoph Konstant, Stefan Mayr
  • METHOD FOR COATING A COMPONENT
    Publication number: 20220380926
    Abstract: The present invention relates to a method for coating a component, wherein the component has a first and a second surface, and wherein the first and the second surface adjoin each other at an edge, in which method i) first of all, the edge between the first and the second surface is rounded, and ii) subsequently, a coating is applied to the first surface.
    Type: Application
    Filed: May 25, 2022
    Publication date: December 1, 2022
    Applicant: MTU Aero Engines AG
    Inventors: Josef Linska, Richard Auracher, Alexander Gast
  • Sealing apparatus for a turbomachine, seal-carrier ring element for a sealing apparatus, and turbomachine
    Patent number: 11499437
    Abstract: A sealing apparatus for a turbomachine, including a stator vane component, which includes an inner shroud element and a flow-directing element connected to the inner shroud element. The sealing apparatus includes a sealing component, which has a seal-carrier ring element coupled to the stator vane component. The seal-carrier ring element includes at least one ring body element and at least one projection, which is connected in one piece to the at least one ring body element, protrudes from the at least one ring body element in the radial direction of the sealing apparatus, and is inserted into at least one opening, which extends through the inner shroud element. Other aspects relate to a seal-carrier ring element for a sealing apparatus, and to a turbomachine which includes at least one sealing apparatus and/or at least one seal-carrier ring element.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: November 15, 2022
    Assignee: MTU Aero Engines AG
    Inventors: Julia Schmidt-Petersen, Markus Schlemmer
  • ECM SYSTEM, HAVING A HOLDER AND A MACHINING PLATFORM
    Publication number: 20220355405
    Abstract: The invention relates to an ECM system comprising a holder for the arranging of at least one component to be machined and at least one machining station for the electrochemical machining of the at least one component at at least one machining position. The ECM system has a positioning apparatus, which is designed to mount, in a predefined position, a machining platform arranged on the positioning apparatus, and the machining platform comprises at least one machining station having at least one electrode arranged thereon, which electrode can be moved along a machining path in order to machine the at least one component that can be arranged on the holder.
    Type: Application
    Filed: August 13, 2020
    Publication date: November 10, 2022
    Applicant: MTU Aero Engines AG
    Inventors: Roland Huttner, Markus Zeis, Christian Doll, Rolf Kneilling
  • Thermal barrier coating with high corrosion resistance
    Patent number: 11492692
    Abstract: Disclosed is a thermal barrier coating system for components of a turbomachine, especially for high temperature-stressed or hot gas-stressed components of a turbomachine, comprising a ceramic coating of fully or partially stabilized zirconium oxide, and an oxide cover coating which comprises aluminum and at least one element from the group lanthanum, magnesium, silicon, calcium and sodium. The aluminum oxide exists at least partially as free ?-Al2O3. Also disclosed is a method for producing a corresponding thermal barrier coating system.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: November 8, 2022
    Assignee: MTU AERO ENGINES AG
    Inventors: Philipp Doebber, Frank Seidel
  • METHOD FOR CHARACTERIZING A COATING
    Publication number: 20220334036
    Abstract: The present invention relates to a method for characterizing a coating, in which method a mass and/or a volume of a basic body is/are measured prior to coating; a mass and a volume of the basic body with the applied coating are measured; for characterizing the coating, a density of the coating is determined from the volume and mass measurements; wherein the volume is optically measured.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 20, 2022
    Applicant: MTU Aero Engines AG
    Inventors: Florian Beck, Steven Piorun, Sascha Buettner, Manuel Hertter, Christoph Rau
  • Work station for electrochemically machining a workpiece, in particular a rotationally symmetrical workpiece, comprising a plurality of recesses, and method for producing an end contour of a recess
    Patent number: 11471966
    Abstract: The invention relates to a work station for electrochemically machining a workpiece, having a number of recesses, including a base structure; a module which is fastened to the base structure and is configured to electrochemically machine the workpiece. A workpiece holder is fastened to the base structure. The workpiece holder is movable relative to the base structure along a feed axis which is parallel to the axis of rotation of the module. The module includes an electrode carrier arrangement, which is coupled to the module base body so the electrode carrier arrangement can be rotated together with the module base body about the axis of rotation of the module. The electrode carrier arrangement has a carrier frame and an electrode frame, where at least one electrode is detachably fastened to the electrode frame.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: October 18, 2022
    Assignee: MTU Aero Engines AG
    Inventors: Martin Fessler-Knobel, Roland Huttner
  • Method for the production of drill holes in difficult to machine materials
    Patent number: 11471964
    Abstract: The present invention relates to a method for the production of drill holes in difficult to machine materials, in which a removal of material takes place in order to produce a drill hole by electrochemical erosion of material by an electrode that is moved in the longitudinal direction of the drill hole being produced in the direction onto the material to be processed at a feed rate, wherein the drilling has at least two steps, wherein, in the first step, the electrochemical processing takes place, and wherein, in a second step, the further processing of the drill hole to the final diameter takes place by machining processing or by erosion or by an electrochemical processing.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: October 18, 2022
    Assignee: MTU Aero Engines AG
    Inventors: Albin Platz, Nicole Feiling, Anna Carina Kuepper, Norbert Huber
  • CRANKCASE FOR AN INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE
    Publication number: 20220316418
    Abstract: A crankcase includes: at least one cylinder for an internal combustion engine, the cylinder including: a cylinder interior; a cylinder liner which is arranged within the cylinder interior; a cylinder head which closes the cylinder interior, wherein the cylinder head includes a receiving way; a cooling system which guides a coolant flow and has a cooling chamber; a distribution system to separate the coolant flow into a primary partial flow and at least one secondary partial flow, the distribution system including a main channel for the primary partial flow and at least one branch-off passage for the at least one secondary partial flow, the at least one branch-off passage branching off from the main channel and being arranged transversely to the main channel for the at least one secondary partial flow.
    Type: Application
    Filed: September 4, 2020
    Publication date: October 6, 2022
    Applicant: MTU Friedrichshafen GmbH
    Inventors: Jörn Wildhagen, Artur Hunger, Martin Gebhardt
  • METHOD FOR OPERATING AN ENERGY SUPPLY DEVICE
    Publication number: 20220302471
    Abstract: The invention relates to an energy supply device with at least one fuel cell and to a method for operating at least one energy supply device with at least one fuel cell, which has at least one anode that can be supplied with a fuel and at least one cathode that can be supplied with ambient air for generating electrical energy. The proposed energy supply device has a converter device.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 22, 2022
    Applicant: MTU Aero Engines AG
    Inventors: Barnaby Law, Ann-Kathrin Henss
  • LAYER CONSTRUCTION METHOD AND LAYER CONSTRUCTION DEVICE FOR ADDITIVELY MANUFACTURING AT LEAST ONE COMPONENT REGION OF A COMPONENT, AND COMPUTER PROGRAM PRODUCT AND STORAGE MEDIUM
    Publication number: 20220288690
    Abstract: The layer construction method comprises at least the following steps: a) applying at least one powder layer of a material to at least one construction and joining zone of at least one movable construction platform; b) locally solidifying the material to form a component layer, wherein the material is selectively scanned along scan lines by at least one energy beam and fused; c) lowering the construction platform layer by layer by a predefined layer thickness; and d) repeating the steps a) to c) until the component region is complete. In step b), a distance hs between at least two central lines of neighboring scan lines in at least one component layer is adjusted in accordance with Formula I 0.85?bsmin/hs?1.00??(I) wherein bsmin represents a minimum melt pool width of the scan lines.
    Type: Application
    Filed: July 13, 2020
    Publication date: September 15, 2022
    Applicant: MTU Aero Engines AG
    Inventors: Katrin Friedberger, Sebastian Rott, Steffen Schlothauer, Wolfgang Nietsch
  • Method for operating an internal combustion engine, control device, and internal combustion engine
    Patent number: 11441480
    Abstract: A method for operating an internal combustion engine with a motor, having a moving machine part and at least one machine element which retains the moving machine part and is subject to wear, such as, for example, a supporting, sealing, guiding or the like retaining machine element that is subject to wear during operation relative to the moving machine part, which machine element, because of the wear, is service-life-limiting for the operation of the internal combustion engine, wherein—for the operation of the internal combustion engine, a service-life-limiting time interval until the next maintenance of the internal combustion engine is specified, and—the internal combustion engine has a number of service-life-limiting machine elements, wherein for the at least one service-life-limiting machine element a remaining service life is forecast and the service-life-limiting time interval is determined therefrom.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: September 13, 2022
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Rolf Pfeifer, Ion Madan, Vadzim Khakholka, Dietmar Ackermann, Patrick Stoeckle
  • Jacket ring assembly for a turbomachine
    Patent number: 11434785
    Abstract: A jacket ring assembly for a turbomachine, the jacket ring assembly including a casing part, a jacket ring segment which is adapted to radially outwardly surround a rotor blade ring and to this end is disposed radially inwardly of the casing part, as considered with respect to a longitudinal axis of the turbomachine, and a segmented ring which is circumferentially divided into segments and by which the jacket ring segment is mounted to the casing part, the segmented ring being axially form-fittingly disposed on a form-fitting element of the casing part, for which purpose each of the respective segments of the segmented ring is radially outwardly assembled with the form-fitting element, and the segmented ring forming a supporting seat on which the jacket ring segment is seated and radially inwardly supported with an axially forward end.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: September 6, 2022
    Assignee: MTU Aero Engines AG
    Inventor: Manfred Feldmann
  • METHOD AND APPARATUS FOR MACHINING COMPONENTS BY MEANS OF ELECTROCHEMICAL MACHINING
    Publication number: 20220274195
    Abstract: The invention relates to a method machining a particularly planar component by means of electrochemical machining, wherein the component has internal stresses resulting particularly from preceding manufacturing steps. In a first step a) of the method, the component to be machined is provided. Subsequently, in step b), at least two tools are provided in the form of electrodes and, in step c), an electrolyte is provided between the component and the at least two electrodes. In step d), a positive voltage is applied to the component and a negative voltage is applied to the at least two electrodes. Thus, in step e), by moving the at least two electrodes along their respective movement paths with respect to the component, electrochemical machining can take place; in the process, the gap between each electrode and the component is flushed with the electrolyte at least intermittently.
    Type: Application
    Filed: July 22, 2020
    Publication date: September 1, 2022
    Applicant: MTU Aero Engines AG
    Inventors: Nicole Feiling, Markus Zeis, Roland Huttner, Christian Doll