Patents Assigned to MTU
  • Method for rail pressure regulation in an internal combustion engine
    Patent number: 9556840
    Abstract: The invention describes a method and an arrangement for the regulation of the rail pressure in an internal combustion engine. In the method, the rail pressure is regulated, with a target high pressure being predefined. Said target high pressure is filtered, before being input, by way of a target high pressure filter which is configured as a dynamic target high pressure filter.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: January 31, 2017
    Assignee: MTU Friedrichshafen GmbH
    Inventor: Armin Dölker
  • Process and apparatus for applying layers of material to a workpiece made of tiAl
    Patent number: 9550255
    Abstract: A method for depositing material layers on a workpiece made of a material which contains a titanium aluminide includes the steps of: preparing the workpiece; heating the workpiece in a localized region by induction to a predefined preheating temperature; and depositing an additive, preferably in powder form, on the heated surface of the workpiece by build-up welding, in particular laser build-up welding, plasma build-up welding, micro-plasma build-up welding, TIG build-up welding or micro-TIG build-up welding; the additive including a titanium aluminide.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: January 24, 2017
    Assignee: MTU Aero Engines GmbH
    Inventors: Karl-Hermann Richter, Herbert Hanrieder, Sonja Dudziak, Albert Grueninger
  • Ductile compensation layer for brittle components
    Patent number: 9551231
    Abstract: Disclosed is a blade element of a turbomachine, in particular of a gas turbine, which comprises a fastening element (10) with which the blade element is arranged in a receptacle (11) of the turbomachine. In the region of the fastening element, the blade element has a core region (18) and an envelope region (19) which at least partially envelops the core region. The core region is formed from a blade base material which is more brittle than the envelope material of the envelope region, and the envelope region is formed by a coating. The envelope material is a blade base material which has been modified to achieve a higher ductility or is a pseudoelastic or superelastic material.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: January 24, 2017
    Assignee: MTU AERO ENGINES AG
    Inventors: Erich Steinhardt, Wilfried Smarsly, André Werner
  • Power generation system and method for assembling the same
    Patent number: 9550412
    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: January 6, 2015
    Date of Patent: January 24, 2017
    Assignee: MTU America Inc.
    Inventors: Mark Daniel Bowdich, Douglas Edwin Berry, Bruce Ernest Richard Wolff, Gerhard Kramer, Scott Daniel Woodruff, Ulrich Handel
  • Gas turbine
    Patent number: 9546552
    Abstract: A gas turbine having a system of stages including at least one stage having first and second airfoils arranged alternately in the circumferential direction. The first airfoils each have a first array of cavities and the second airfoils each have a second array of cavities different from the first array of cavities.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: January 17, 2017
    Assignee: MTU Aero Engines AG
    Inventor: Harald Schoenenborn
  • Antifouling layer for compressor blades
    Patent number: 9540522
    Abstract: The present invention relates to a composition for producing a coating having antifouling properties on a component of a turbomachine. The composition comprises a binder comprising at least one silicon-organic constituent, ceramic particles and a solvent, the ceramic particles comprising at least silicon dioxide and the silicon-organic constituent comprising at least alkoxysilane. In addition, the present invention relates to a process for producing a coating using such a composition and also a correspondingly produced coating and a component provided therewith.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: January 10, 2017
    Assignee: MTU AERO ENGINES AG
    Inventors: Natividad Lopez Lavernia, Max Niegl, Melanie Heusing
  • Safety device for a bearing arrangement of a rotor of a turbomachine
    Patent number: 9540946
    Abstract: A safety device (10) for a bearing arrangement of a rotor of a turbomachine, whereby the safety device (10) includes at least two support structures (12) between which at least one buckling structure (14) is arranged that is configured to collapse when a predetermined buckling load that acts on at least one of the support structures (12) is exceeded, thereby reducing the volume of the safety device (10). A method for the production of a safety device (10) for a bearing arrangement of a rotor of a turbomachine, as well as to a bearing arrangement of a rotor of a turbomachine having such a safety device (10).
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: January 10, 2017
    Assignee: MTU Aero Engines GmbH
    Inventor: Alexander Boeck
  • Housing-side structure of a turbomachine
    Patent number: 9540953
    Abstract: A housing-side structure of a turbomachine, in particular of a gas turbine, including an in particular segmented jacket ring (16), which carries an abradable lining for radially outer ends of rotor-side moving blades of a moving blade ring, wherein the jacket ring (16) carrying the abradable lining is connected by means of at least one constriction (18) to a stator-side housing part (19), which is radially adjacent to the jacket ring (16) on the outside and the jacket ring is thermally decoupled from said stator-side housing.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: January 10, 2017
    Assignee: MTU Aero Engines GmbH
    Inventor: Wilfried Weidmann
  • Fuel cell assembly comprising an improved catalytic burner
    Patent number: 9543599
    Abstract: There is disclosed a fuel cell assembly comprising at least one horizontally arranged fuel cell stack that has numerous fuel cells, each comprising an anode, a cathode and an electrolyte situated between the anode and the cathode; combustible gas supply means for supplying combustible gas to the anodes of the fuel cells; anode gas withdrawal means for withdrawing the anode exhaust gas from the anodes; cathode gas supply means for supplying cathode gas to the cathodes of the fuel cells; cathode gas withdrawal means for withdrawing the cathode exhaust gas from the fuel cells; and recirculation means for recirculating at least one part of the anode exhaust gas and/or the cathode exhaust gas to cathodes of the fuel cells.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: January 10, 2017
    Assignee: MTU Onsite Energy GmbH
    Inventors: Uwe Burmeister, Johann Huber, Norbert Ottmann, Stefan-Ibrahim Peterhans, Wolfgang Wagner, Christoph Weiser
  • Method for the non-destructive testing of workpiece surfaces
    Patent number: 9535012
    Abstract: Disclosed is a method for the non-destructive testing of workpiece surfaces of a workpiece by means of fluorescent penetrant testing or dye penetrant testing. The method comprises applying a penetrant to the region of the workpiece surface to be examined, thereby allowing the penetrant to penetrate into possible recesses in the workpiece surface, applying a developer to the region of the workpiece surface to be tested; bleaching the penetrant by a gaseous or liquid oxidant; and visually assessing the penetrant that has remained in the recesses present in the workpiece surface.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: January 3, 2017
    Assignee: MTU AERO ENGINES AG
    Inventors: Wilhelm Satzger, Joachim Bamberg, Roland Hessert, Robert Schuster, Thomas Hess
  • Sealing of the flow channel of a turbomachine
    Patent number: 9512734
    Abstract: A turbomachine having a flow channel and a housing radially surrounding the flow channel, a plurality of stationary and moving blades being situated in the flow channel, stationary blades being situated adjacent to the moving blades in the axial direction, and the stationary blades having at least one stationary blade hook which engages with at least one housing hook for the purpose of connecting the stationary blades to the housing. A sealing and lining element is situated in the radial direction between the moving blades adjacent to the stationary blades and the housing, and has a sealing structure interacting with blade tips of the moving blades. A heat protection element is provided in the area between the sealing and lining element and the housing, and a sealing element being situated on the heat protection element for the purpose of sealing contact with the housing hook.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: December 6, 2016
    Assignee: MTU Aero Engines AG
    Inventors: Manfred Feldmann, Norbert Schinko, Sebastian Kaltenbach, Joachim Lorenz
  • Coating method for forming crack-resistant coatings having good adherence and component coated in this manner
    Patent number: 9512512
    Abstract: A method for coating a component, in particular a component of a gas turbine or of an aircraft engine, is disclosed. The coating is applied to the component by kinetic cold gas spraying, where prior to the deposition of the coating, the surface of the component to be coated is cleaned and compacted by shot peening with a blasting media. A component produced in this manner is also disclosed.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: December 6, 2016
    Assignee: MTU Aero Engines GmbH
    Inventors: Joachim Bamberg, Roland Hessert, Manuel Hertter
  • Damping means for damping a blade movement of a turbomachine
    Patent number: 9506372
    Abstract: A damper (2) for damping a blade movement of a turbomachine (1), and to a method for producing the damper (2). The damper (2) has at least one side surface (21, 21?) which can be brought into frictional contact with a friction surface of the turbomachine (1) in order to damp a blade movement. The side surfaces (21, 21?) are asymmetrically convex in shape.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: November 29, 2016
    Assignee: MTU Aero Engines GmbH
    Inventors: Carsten Schoenhoff, Manfred Dopfer, Martin Pernleitner, Wilfried Schuette
  • Seal carrier attachment for a turbomachine
    Patent number: 9506368
    Abstract: A housing structure for a turbomachine having a stationary blade ring annularly surrounding a flow channel, and having a seal carrier ring which also annularly surrounds the flow channel, the stationary blade ring and the seal carrier ring being connected to each other, and either the stationary blade ring or the seal carrier ring having a one-sidedly open receptacle in the radial direction in relation to the flow channel and a radially projecting engagement area which corresponds to the connected seal carrier ring or stationary blade ring and which is held in a form-fitting manner in the axial direction and in the radial direction in the direction of the closed side of the receptacle but is freely movable with respect to the connected receptacle and the seal carrier ring or stationary blade ring having this receptacle in the radially opposite direction in the direction of the receptacle opening.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: November 29, 2016
    Assignee: MTU Aero Engines AG
    Inventors: Manfred Feldmann, Janine Sangl, Norbert Schinko
  • Continuous-flow machine with at least one guide vane ring
    Patent number: 9506360
    Abstract: A continuous-flow machine, especially an axial compressor, having at least one guide vane ring that includes at least one row of adjustable guide vanes, whereby each guide vane is tapered relative to its vane body in the direction of its longitudinal axis as seen in a side view of the guide vane. In order to increase the stability of the flow in the continuous-flow machine, each row of guide vanes comprises first guide vanes and second guide vanes, whereby, as seen in a combined side view of a first guide vane and of a second guide vane, each first guide vane is tapered along its vane body in the lengthwise direction, and each second guide vane is tapered in the opposite direction.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: November 29, 2016
    Assignee: MTU Aero Engines AG
    Inventor: Roland Wunderer
  • Blade ring segment having an annular space delimiting surface having a wavy height profile
    Patent number: 9500082
    Abstract: A method for machining a workpiece. An electrode is moved linearly in the direction of the workpiece to cause material to be removed from the workpiece, at least one end of a surface of the workpiece running obliquely to a guide edge of the electrode machining this surface. The electrode is moved at least partially with the electrode surface parallel to the surface, so that during the approach to the workpiece, areas of the workpiece having an irregular edge machined at a different intensity are formed, the difference in intensity of machining on the edge of the surface to be machined being compensated in that the surface to be machined is provided with a height profile adapted to the shape of the end of the surface to be machined. A blade ring segment and blade ring is also disclosed.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 22, 2016
    Assignee: MTU Aero Engines AG
    Inventors: Martin Pernleitner, Christian Bichlmaier, Carsten Zscherp
  • Bearing cage and bearing means having this type of bearing cage as well as method for designing, repairing and/or replacing such a bearing cage
    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
  • Blade rim segment for a turbomachine and method for manufacture
    Patent number: 9500088
    Abstract: The present invention relates to a blade rim segment for a turbomachine with at least one shroud band which extends along a segment of a circle and is connected in single-piece fashion with at least three blades, which extend radially from the shroud band and are configured to be hollow with at least one channel, wherein the blade rim segment is manufactured in a single piece by casting and directional solidification, and wherein at the outlet openings of the channels of the blades, the shroud band exhibits first reinforcement ribs that surround the opening and run axially, as well as at least one second reinforcement rib between at least the first reinforcement ribs, as well as a corresponding method for manufacturing a blade rim segment.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: November 22, 2016
    Assignee: MTU AERO ENGINES AG
    Inventors: Markus Schlemmer, Marcin Rozak, Alexander Buck
  • Cleaning of a turbo-machine stage
    Patent number: 9492906
    Abstract: The invention relates to a method for cleaning a turbo-machine stage (100) consisting of at least one of the following steps: a cleaning nozzle (1) is introduced into an opening of a turbo-machine, in particular into an inspection opening (220); and the blade (100) of the stage is acted upon by solid particles, said particles subliming at the blade temperature, in particular into dry ice particles.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: November 15, 2016
    Assignee: MTU AERO ENGINES GMBH
    Inventors: Jürgen Rösing, Frank Seidel, Lutz Winkler, Bernd Kriegl, Thomas Uihlein, Martin Dürr, Fabian Moritz
  • Cooling-air guidance in a housing structure of a turbomachine
    Patent number: 9488069
    Abstract: A housing structure for a turbomachine, the housing structure annularly surrounding, at least partially, a flow channel (14) in which guide vanes and rotor vanes are arranged. The housing structure has an inner wall (2) that delimits the flow channel and an outer wall (1) that is closed off vis-à-vis the environment. A heat-protection plate (3) is arranged on the radial outside of the inner wall, and insulation (4) is arranged between the heat-protection plate and the outer wall. At least one cooling-air channel (6) is formed between the insulation and the radial inside of the outer wall, the cooling-air channel (6) having at least one air-guiding element (5) resting against the insulation.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: November 8, 2016
    Assignee: MTU Aero Engines AG
    Inventors: Manfred Feldmann, Norbert Schinko, Christian Eichler, Sebastian Kaltenbach