Patents by Inventor Erwin Bayer

Erwin Bayer 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: 10371054
    Abstract: A cooling-air supply device for a gas turbine, in particular an aircraft gas turbine, including a cooling air chamber, that is disposed about a turbine shaft of the gas turbine, at least one cooling-air inlet opening, and at least one cooling-air outlet orifice; the cooling-air supply device having a first and a second axial bounding wall, and a peripheral wall that joins the two axial bounding walls, which, together, form the cooling air chamber; in at least one of the axial bounding walls, a plurality of cooling-air outlet orifices being provided, which are circumferentially distributed about the turbine shaft and are adapted to allow the cooling air to essentially be discharged from the individual cooling-air outlet orifices in the direction of rotation of the gas turbine.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 6, 2019
    Assignee: MTU Aero Engines AG
    Inventors: Stefan Sasse, Erwin Bayer
  • Patent number: 10144062
    Abstract: A method for producing a component of a turbomachine is disclosed. The method includes a) layer-by-layer deposition of a powder component material onto a component platform in a region of a buildup and joining zone, where the deposition takes place in accordance with layer information of the component to be produced; b) local layer-by-layer fusion or sintering of the powder component material by energy supplied in the region of the buildup and joining zone, where the buildup and joining zone is heated to a temperature just below a melting point of the powder component material; c) layer-by-layer lowering of the component platform by a predefined layer thickness; and d) repetition of steps a) to c) until the component is finished. A device for producing a component of a turbomachine is also disclosed.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: December 4, 2018
    Assignee: MTU Aero Engines GmbH
    Inventors: Erwin Bayer, Karl-Hermann Richter
  • Patent number: 9840919
    Abstract: A method for producing a run-in coating for a turbomachine for braking a rotor in the event of a shaft breakage, the run-in coating being formed as an integral, generative blade portion during a generative manufacture of a blade. A run-in system having an abradable ring that is configured circumferentially on a blade row and has a chamber-type material structure. A turbomachine having a run-in system of this kind, as well as a guide vane having such a run-in coating.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: December 12, 2017
    Assignee: MTU Aero Engines AG
    Inventors: Erwin Bayer, Thomas Hess, Sven-J. Hiller, Peter Geiger
  • Patent number: 9764403
    Abstract: A method for electrochemically processing a workpiece surface using an electrode, which has at least one effective surface for processing the workpiece surface, and using an electrolyte, wherein the electrolyte is suctioned away from the effective surface. The invention further relates to an electrode, which has at least one electrolyte feed for supplying the electrolyte to the effective area and an electrolyte suctioning system for suctioning the electrolyte away from the effective area.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: September 19, 2017
    Assignee: MTU Aero Engines GmbH
    Inventors: Erwin Bayer, Roland Huttner
  • Patent number: 9726038
    Abstract: The invention relates to a process for producing an insulation element (12), which can be arranged radially above at least one guide vane (14) in a housing (10) of a thermal gas turbine. The insulation element (12) is produced from a solid body (24) provided with a metallic shell (26), the solid body (24) consisting at least partially of a ceramic material. The invention also relates to an insulation element (12), which can be arranged radially above at least one guide vane (14) in a housing (10) of a thermal gas turbine, and to an aero engine having a housing (10), in which at least one insulation element (12) is arranged radially above at least one guide vane (14).
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: August 8, 2017
    Assignee: MTU AERO ENGINES AG
    Inventors: Erwin Bayer, Thomas Hess, Sven-Juergen Hiller, Peter Geiger
  • Patent number: 9689270
    Abstract: Disclosed is a coating for protecting a component against high temperatures and aggressive media, which coating has at least one subregion whose main constituent is chromium. The layer additionally comprises aluminum, the chromium content at least in the subregion in which chromium is the main constituent being greater than 30% by weight and the aluminum content being greater than or equal to 5% by weight. The invention further provides a process for producing such a coating, comprising chromizing the surface to be coated and subsequently alitizing the chromium-rich layer produced during chromizing.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: June 27, 2017
    Assignee: MTU AERO ENGINES AG
    Inventors: Horst Pillhoefer, Stefan Mueller, Erwin Bayer, Thomas Dautl
  • Patent number: 9605554
    Abstract: Disclosed are a turbomachine having at least one radial gap seal which has at least two opposite ceramic coatings which are constructed in each case from a ceramic powder, the particle size of which is smaller than 1.0 ?m, and a turbomachine having at least one radial gap seal, wherein the coatings are built up from powder-based individual layers, the outer layer of which has a higher ceramic fraction than a base layer close to the rotor or stator section respectively, wherein the particle size of the powder material is smaller than 1.0 ?m.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: March 28, 2017
    Assignee: MTU AERO ENGINES AG
    Inventors: Sven-Juergen Hiller, Erwin Bayer, Thomas Hess, Peter Geiger
  • Patent number: 9500230
    Abstract: The invention relates to a bearing cage of a bearing means, in particular a ball or roller bearing, which is produced by means of a generative manufacturing method and has an outer flange and a bearing seat, which are joined together via a plurality of spring beams.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: November 22, 2016
    Assignee: MTU AERO ENGINES AG
    Inventors: Sven-Juergen Hiller, Erwin Bayer, Thomas Hess, Peter Geiger
  • Patent number: 9393622
    Abstract: A method for producing a thin-walled structural component from a casting material. The casting material is supplied as a powder, and the powder is deposited on a support (1) by a kinetic cold gas spraying process so as to form the structural component (11, 11?). A structural component which is made of a casting material and in which the structure is formed from a plurality of particles (17) that are interlinked and deformed using a cold gas spraying process.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: July 19, 2016
    Assignee: MTU Aero Engines GmbH
    Inventors: Andreas Jakimov, Erwin Bayer, Karl-Heinz Dusel, Carsten Butz
  • Patent number: 9382809
    Abstract: A sealing arrangement for a turbomachine for sealing a radial gap between a rotor and a stator, with a plurality of sealing segments each comprising a honeycomb element and a base body for holding the honeycomb element, and with at least one support for arranging the sealing segments on a rotor section or stator section, wherein the base bodies can be arranged on the at least one support by a radial movement and by a plastic deformation of at least one body section, a generative method for the integral production of the sealing segments, and a turbomachine are disclosed.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: July 5, 2016
    Assignee: MTU AERO ENGINES GMBH
    Inventors: Erwin Bayer, Thomas Hess, Manfred Feldmann, Sven Hiller, Peter Geiger
  • Publication number: 20160177831
    Abstract: A cooling-air supply device for a gas turbine, in particular an aircraft gas turbine, including a cooling air chamber, that is disposed about a turbine shaft of the gas turbine, at least one cooling-air inlet opening, and at least one cooling-air outlet orifice; the cooling-air supply device having a first and a second axial bounding wall, and a peripheral wall that joins the two axial bounding walls, which, together, form the cooling air chamber; in at least one of the axial bounding walls, a plurality of cooling-air outlet orifices being provided, which are circumferentially distributed about the turbine shaft and are adapted to allow the cooling air to essentially be discharged from the individual cooling-air outlet orifices in the direction of rotation of the gas turbine.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Inventors: Stefan Sasse, Erwin Bayer
  • 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: 9254530
    Abstract: A method for removing material from a component that is connected as an anode is disclosed. In an embodiment, an electrode that is connected as a cathode is guided to the component such that a gap is formed, an electrolyte is introduced into the gap, and a closed system is formed for the electrolyte by the formation of a duct. The electrolyte is continuously guided from an inlet opening to an outlet opening of the duct. Forming the duct, e.g., by guide elements that are mounted on the electrode, ensures that only those surface parts of the component to be machined from which material is to be removed enter in contact with the electrolyte while the other surface parts do not enter in contact with the electrolyte. Since the electrolyte is continuously guided across the surface, used electrolyte is continuously discharged along with residual matter while fresh electrolyte is delivered.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: February 9, 2016
    Assignee: MTU Aero Engines GmbH
    Inventors: Erwin Bayer, Martin Bussmann, Albin Platz
  • Patent number: 9249686
    Abstract: A housing for a turbomachine includes a peripheral wall delimiting an annular space and a fluid conveying system for redirecting a partial flow of a main flow, which has an axial channel, a front annular channel and a rear annular channel in fluid connection with the axial channel and having a front annular space opening and a rear annular space opening. The fluid conveying system has a front valve device and a rear valve device controllable independently of the front valve device, for opening and closing the annular space openings, and an outlet opening for tapping the partial flow from the fluid conveying system. In the closed state of the rear annular space opening, the partial flow is directable through the rear annular channel and, in the closed state of the front annular space opening, the partial flow is directable through the front annular channel.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: February 2, 2016
    Assignee: MTU Aero Engines GmbH
    Inventors: Sven Hiller, Erwin Bayer, Peter Geiger, Thomas Hess
  • Publication number: 20150308502
    Abstract: The invention relates to a bearing cage of a bearing means, in particular a ball or roller bearing, which is produced by means of a generative manufacturing method and has an outer flange and a bearing seat, which are joined together via a plurality of spring beams.
    Type: Application
    Filed: April 22, 2015
    Publication date: October 29, 2015
    Inventors: Sven-Juergen Hiller, Erwin Bayer, Thomas Hess, Peter Geiger
  • Patent number: 9114480
    Abstract: The present invention relates to methods for joining a rotationally asymmetrical part, preferably a turbine blade, which is made of a monocrystalline material, to a part, preferably a rotor core, which is made of polycrystalline material, having the method steps of: —joining the rotationally asymmetrical part to an adapter piece made of polycrystalline material by means of rotational friction welding, and —joining the adapter piece to the part made of polycrystalline material. The present invention also relates to a turbine blisk having a rotor core made of polycrystalline material and turbine blades made of monocrystalline material.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: August 25, 2015
    Assignee: MTU AERO ENGINES GMBH
    Inventors: Ulrich Knott, Erwin Bayer, Thomas Uihlein
  • Patent number: 9095900
    Abstract: The invention relates to a generative production method for producing a component by selectively melting and/or sintering a powder several times consecutively by introducing an amount of heat by means of beam energy, such that the powder particles melt and/or sinter in layers, wherein the powder particles (1) are made of a first material (2) and the powder particles are surrounded by a second material (3) partially or over the entire surface thereof, wherein the second material has a lower melting point than the first material and/or lowers the melting point of the first material when mixed with the first material. The invention further relates to a corresponding powder and to a prototype produced from said powder.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: August 4, 2015
    Assignee: MTU AERO ENGINES AG
    Inventors: Manuel Hertter, Erwin Bayer, Markus Waltemathe, Klaus Broichhausen, Wilhelm Meir, Bertram Kopperger, Josef Waermann, Andreas Jakimov
  • Patent number: 8973346
    Abstract: A gas turbine engine, especially a turbojet or turbofan for an aircraft, includes a combustion section and an exhaust section produces an exhaust gas. The emission products can be reduced by using a gas treatment device with a reactor and an injection device. The reactor produces a nitrogeneous substance such as ammonia. This reducing agent is injected in the gas phase in the exhaust section of the gas turbine engine. By selective non catalytic reaction the Nitrogen oxides of the exhaust gas can be reduced. Furthermore the injection device is arranged such that the temperature window of this reduction process is ranging from 850° C. to 1100° C. The reactor for producing gaseous ammonia can either be a thermal reactor or a high pressure plasma device.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: March 10, 2015
    Assignee: Airbus Operations GmbH
    Inventors: Erwin Bayer, Jürgen Steinwandel, Emmanuel Joubert
  • Patent number: 8974645
    Abstract: The invention relates to a method for plasma reformation of fuel, in particular kerosene, which method comprises the steps of: feeding fuel through a line to the inlet of an expansion nozzle; supplying energy from an energy source by way of a hollow waveguide to generate a plasma state in the expansion nozzle; injecting further fuel through nozzles into the arising plasma flame in order to decompose the fuel in the heat into components such as CO, C and H; and expanding the plasma flame at high speed into the combustion chamber.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: March 10, 2015
    Assignee: EADS Deutschland GmbH
    Inventors: Erwin Bayer, Jürgen Steinwandel
  • 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