Patents Assigned to MTU
  • Layer system for rotor/stator seal of a turbomachine and method for producing this type of layer system
    Patent number: 8992169
    Abstract: The present invention creates a layer system for the rotor/stator seal of a turbomachine, in particular a compressor, which is disposed between components of the turbomachine and can be run in with a movement of the components relative to one another, in such a way that at least one of the components is run into the layer system, having: a first adhesive layer disposed on at least one of the components; a protective layer disposed on the first adhesive layer; a second adhesive layer disposed on the protective layer; and a running-in layer, which is formed softer than the protective layer and which is disposed on the second adhesive layer. The present invention further provides a method for producing a layer system for the rotor/stator seal of a turbomachine, as well as a turbomachine.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: March 31, 2015
    Assignee: MTU Aero Engines GmbH
    Inventor: Martin Metscher
  • Blade channel having an end wall contour and a turbomachine
    Patent number: 8985957
    Abstract: A blade channel having a not-axially-symmetric end wall contour in a turbomachine is disclosed, the end wall contour having at least one individual contour in the form of an elevation, on the pressure side, and at least three individual contours in the form of two recesses and one elevation, on the suction side, the elevation being situated between the recesses in the flow direction; a turbomachine having a plurality of blade channels of this type is also disclosed.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: March 24, 2015
    Assignee: MTU Aero Engines GmbH
    Inventors: Inga Mahle, Michaela Niebler
  • METHOD FOR DISASSEMBLY AND ASSEMBLY OF A ROTOR OF A GAS TURBINE
    Publication number: 20150071769
    Abstract: A method for disassembly of a rotor, in particular the front rotor of a gas turbine with a housing and a channel which diverges in a direction of flow and in which the rotor is arranged, is disclosed. An embodiment of the method includes axially displacing an outer sealing ring that is radially opposite the rotor, and whose minimum inside diameter is smaller than the maximum outside diameter of the rotor, against the direction of flow. Then, the rotor is axially displaced against the direction of flow, in particular out of the housing. A method for assembly of such a rotor, as well as a tool for the same, is also disclosed.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 12, 2015
    Applicant: MTU Aero Engines AG
    Inventors: Walter GIEG, Petra KUFNER, Rudolf STANKA
  • APPARATUS FOR ENERGY ABSORPTION, A TURBO-MACHINE AND A METHOD FOR ENERGY ABSORPTION
    Publication number: 20150063986
    Abstract: An apparatus for absorption of an impact energy from at least one blade fragment is disclosed. The impact energy acts on an element that is inserted into an opening in a turbo-machine. The opening passes radially through a housing section in a region of a row of rotating blades. The apparatus has a holder for holding the element in an ideal position and releasing the element beyond a preset maximum load and has a cage at a rear to secure the element in a radially outward-directed displacement. A turbo-machine having such an apparatus, as well as a method for multistage energy absorption, is also disclosed.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Applicant: MTU Aero Engines AG
    Inventors: Stefan SASSE, Norbert Schinko
  • MULTIPLE COIL ARRANGEMENT FOR A DEVICE FOR GENERATIVE PRODUCTION OF COMPONENTS AND CORRESPONDING PRODUCTION METHOD
    Publication number: 20150064050
    Abstract: A device for additive manufacturing of components by selective irradiation of a powder bed, having a processing chamber -in which at least one powder bed chamber and at least one radiation source are arranged such that the radiation source can irradiate a powder in the powder bed chamber, and wherein the device includes at least one induction coil, so that a component which is produced by irradiation of the powder bed can be at least partially inductively heated, and wherein the induction coil is movable relative to one or more powder bed chambers. A method for additive manufacturing of components by selective irradiation of a powder bed, in which method the component being manufactured is inductively heated at the same time, wherein the position of one or more induction coils for inductive heating is determined and adjusted based on the geometry of the component to be produced.
    Type: Application
    Filed: March 28, 2013
    Publication date: March 5, 2015
    Applicant: MTU Aero Engines AG
    Inventors: Ulrich Retze, Andreas Jakimov, Herbert Hanrieder
  • Master/slave arrangement of an electronic engine control device with engine identification module
    Patent number: 8965668
    Abstract: A master/slave arrangement of an electronic engine control device with an engine identification module. The electronic engine control device controls and regulates the internal combustion machine. The engine identification module includes at least one microprocessor and a memory building block for storing an engine identification as well as engine specifics. The electronic engine control device and the engine identification module exchange data through an engine cable harness. The engine identification module is arranged inseparably at the crank housing of the internal combustion machine. The engine identification module can be removed from the crank housing as well as from the engine cable harness only by being destroyed.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: February 24, 2015
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Albrecht Debelak, Andreas Schneider, Michael Wölki
  • Method and device for joining metal elements
    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
  • Method for producing a component by calculating a load line of the component
    Patent number: 8951606
    Abstract: A method for producing a component is disclosed. The method includes calculating a load line of the component as a result of a load to be absorbed by the component and applying a layer on a core by gas dynamic cold spraying, where the layer has a layer section and where the layer section runs along the calculated load line.
    Type: Grant
    Filed: January 29, 2011
    Date of Patent: February 10, 2015
    Assignee: MTU Aero Engines GmbH
    Inventors: Manuel H. Hertter, Andreas Jakimov, Marcin Olbrich, Mihaela-Sorina Seitz, Juergen Kraus, Bertram Kopperger, Klaus Broichhausen, Hans Banhirl, Erwin Bayer, Wolfgang Werner, Eberhard Knodel
  • Method and device for the surface peening of a partial element of a component of a gas turbine
    Patent number: 8943659
    Abstract: A method and device for the surface peening, especially ultrasonic shot-peening, of at least one partial element of a component of a gas turbine, is disclosed. The partial element, e.g., a sealing fin, and at least one surface of a vibration device impinging the blasting material are positioned relative to each other at an angle between 70° and 90° based on the direction of extension of the sealing fin.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: February 3, 2015
    Assignee: MTU Aero Engines GmbH
    Inventors: Erwin Bayer, Max Niegl, Holger Polanetzki, Thomas Peschke, Thomas Dautl, Philipp Thuemmler
  • Exhaust-gas aftertreatment system
    Patent number: 8945475
    Abstract: An exhaust post-treatment device is designed in a layered fashion and comprises an exhaust cleaning arrangement lying between a supply chamber and a transition chamber with soot filters lying at both sides of a denitrification-catalytic converter unit, with the transition chamber comprising a mixing chamber open towards the denitrification-catalytic converter unit, in which starting at the soot filters via separate guide channels, the exhaust is injected in the opposite direction of flow and which mixing chamber is limited by guide panels, which form walls of the guide channels extending encompassing along the housing towards the mixing chamber.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: February 3, 2015
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Guido Schäffner, Hans Sudmanns, Claudia Riedel
  • Replacement part for a gas turbine blade of a gas turbine, gas turbine blade and method for repairing a gas turbine blade
    Patent number: 8944772
    Abstract: A replacement part for a gas turbine blade is disclosed. The replacement part is designed to replace a removed portion of the blade, the portion including a section of the blade tip and a section of the leading edge and/or the trailing edge, and the replacement part having at least one joining side with which it can be brought to contact with the blade that is reduced by the removed portion and joined therewith. The joining side has at least one section, the cross-section of which is U-shaped.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: February 3, 2015
    Assignee: MTU Aero Engines GmbH
    Inventors: Armin Eberlein, Albert-Valentin Schneider
  • Method for mounting an integral inner ring of a turbocompressor stator
    Patent number: 8943689
    Abstract: A method for mounting an integral inner ring (10) of a turbocompressor stator to a guide vane ring (12) comprises the following steps: -Providing the guide vane ring (12) with an inner radius S; -Providing inner ring (10) with an outer radius R, which corresponds to the inner radius S; -Pre-tensioning inner ring (10) to an outer radius r that is smaller than the outer radius R of the untensioned inner ring (10); and -Relaxing inner ring (10) to the outer radius R.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: February 3, 2015
    Assignee: MTU Aero Engines GmbH
    Inventor: Frank Stiehler
  • Gas mixer, gas mixing system, gas engine
    Patent number: 8939129
    Abstract: A gas mixer for mixing a first gas and a second gas, including a gas housing, a Venturi tube, a flow body for the first gas arranged in the Venturi tube to form a mixing gap, an inflow tube connected to the Venturi tube, to an inflow opening to the Venturi tube for the second gas, and an actuating element for varying the inflow cross section of the inflow opening. The actuating element has a first and a second actuating part which restrict the inflow cross section. The first actuating part is a first gas housing part and the second actuating part is a second gas housing part. At least one of the gas housing parts forms part of the Venturi tube and/or of the inflow tube At least one of the gas housing parts can be moved with respect to another and has a rotor of a linear motor.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: January 27, 2015
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Johannes Prinz, Manolo Odermatt, Anko Ernst
  • Method for the production of an integrally bladed rotor, and rotor
    Patent number: 8936442
    Abstract: A method for manufacturing an integrally bladed rotor (10), in particular for a gas turbine, including the following method steps: preparing a rotor base member (12) having at least one first weld surface (16) and one blade (14) having a second weld surface (18); positioning the rotor base member (12) and the blade (14) in such a way that a join zone (20) is formed between the first and second weld surface (16, 18); and filling the join zone (20) with metal powder (24) and the laser welding or electron beam welding of the metal powder (24). An integrally bladed rotor (10) has a join zone (20) between the rotor base member (12) and blades (14), the join zone (20) being filled with welded metal powder (24).
    Type: Grant
    Filed: January 30, 2010
    Date of Patent: January 20, 2015
    Assignee: MTU Aero Engines GmbH
    Inventors: Thomas Uihlein, Erich Steinhardt
  • Device and method for the surface peening of a component of a gas turbine
    Patent number: 8931318
    Abstract: A device for surface-peening, especially for the ultrasound shot-peening of a component of a gas turbine, having at least one vibration means that comprises a surface that propels the peening material, and having a holding means with which a surface area of the component and the surface of the vibration means can be arranged with respect to each other is disclosed. In this context, the angular position of the surface of the at least one vibration means can be adjusted relative to the surface area of the component of the gas turbine. Moreover, a method is provided in which the angular position of the surface of the at least one vibration means can be adjusted relative to the surface area of the component.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: January 13, 2015
    Assignee: MTU Aero Engines GmbH
    Inventors: Erwin Bayer, Max Niegl, Martin Bussmann, Thomas Peschke
  • Power generation system and method for assembling the same
    Patent number: 8925660
    Abstract: A power generation system is disclosed. The power generation system includes an electrical converting device and a repowered portion connected to the electrical converting device. The repowered portion includes a reciprocating internal combustion engine and a gearbox. The reciprocating internal combustion engine is connected to the gearbox by a first connecting structure. The gearbox is connected to the electrical converting device by a second connecting structure.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: January 6, 2015
    Assignee: MTU America Inc.
    Inventors: Mark Daniel Bowdich, Douglas Edwin Berry, Bruce Ernest Richard Wolff, Gerhard Kramer, Scott Daniel Woodruff
  • TURBOMACHINE, CIRCULATION STRUCTURE AND METHOD
    Publication number: 20150003976
    Abstract: A turbomachine having at least one circulation structure is disclosed. The circulation structure has an annular space with baffle elements surrounding a main flow path and is open to the main flow path. A housing of the turbomachine to receive the circulation structure is divided in an axial plane into a front housing region and a rear housing region and the circulation structure is divided into a front structure region and a rear structure region in the axial plane of separation. A circulation structure divided into two parts in the axial direction and a method for the same is also disclosed.
    Type: Application
    Filed: June 25, 2014
    Publication date: January 1, 2015
    Applicant: MTU Aero Engines AG
    Inventors: Georg ZOTZ, Giovanni BRIGNOLE, Harsimar SAHOTA, Vitalis MAIRHANSER
  • Method for producing a component covered with a wear-resistant coating
    Patent number: 8920881
    Abstract: For producing a component, especially a gas turbine component, coated with a wear-protection, corrosion-protection or erosion-protection coating, a method includes the following steps: providing a component (10) to be coated on a component surface (13); at least partially coating the component (11) on its component surface with an at least two-layered protective coating (14), which includes at least one relatively soft layer (15) and at least one relatively hard layer (16); and then surface densifying the at least partially coated component on its coated component surface by ball blasting or shot peening.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: December 30, 2014
    Assignee: MTU Aero Engines AG
    Inventors: Wolfgang Eichmann, Karl-Heinz Manier, Markus Uecker, Thomas Uihlein
  • Circulation structure for a turbo compressor
    Patent number: 8915699
    Abstract: A circulation structure for a turbo compressor, in particular for a compressor of a gas turbine, is disclosed. The circulation structure includes at least one annular chamber that can be traversed in a circumferential direction, is concentric with a shaft of the turbo compressor in the region of the free blade ends of a blade ring, and radially borders a main flow channel. Several chambers that can be traversed in an axial direction are situated upstream of the or each annular chamber, when viewed from the main flow direction of the main flow channel.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: December 23, 2014
    Assignee: MTU Aero Engines GmbH
    Inventors: Giovanni Brignole, Carsten Zscherp
  • Method for repairing a guide blade segment for a jet engine
    Patent number: 8914975
    Abstract: A method for repairing a guide blade segment fashioned as a twin guide blade segment within a guide blade composite element, the guide blades being formed from a nose segment and a rear edge segment, the method having identification, within a guide blade segment, of a non-repairable guide blade to be separated from the guide blade composite structure; separation of a non-repairable guide blade from a one repairable guide blade in a first plane of division; division of at least one separated guide blade in a second plane of division between the nose segment and the rear edge segment; reconditioning of the at least one repairable nose segment and/or rear edge segment; joining of a reconditioned and/or new nose segment to a reconditioned and/or new rear edge segment to form at least one guide blade; and joining of at least two guide blades to form a guide blade segment.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: December 23, 2014
    Assignee: MTU Aero Engines GmbH
    Inventor: Joachim Wulf