Patents by Inventor Manfred Feldmann

Manfred Feldmann 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).

  • Publication number: 20170350270
    Abstract: A turbine ring of a turbomachine is described, having a one-piece ring structure which has an outer ring which is continuous in the circumferential direction of the turbine ring and has a fastening section for fastening the turbine ring on a housing section of the turbomachine, an inner ring which is segmented in the circumferential direction and has a plurality of inner ring segments which are mutually displaceable in the circumferential direction for guiding the hot gas and has front sealing segments and rear sealing segments, as seen in the axial direction of the turbine ring, these sealing segments being spaced a distance apart from one another in the axial direction and extending between the inner ring and the outer ring, as well as a turbomachine having such a turbine ring.
    Type: Application
    Filed: October 29, 2013
    Publication date: December 7, 2017
    Inventor: Manfred Feldmann
  • Patent number: 9835039
    Abstract: A turbomachine in the form of a stationary gas turbine or an aircraft engine, respectively a housing structure therefor; the housing structure including an outer housing wall (1) and an inner wall (2) defining the flow channel; and a hollow space (4) being formed between the inner wall and the outer housing wall. The hollow space is separable into at least two regions (5, 6); a movable wire element (slide ring seal) (10, 10?), which is adapted to rest against the contact faces (8, 9), being configured in the hollow space for purposes of the separation.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: December 5, 2017
    Assignee: MTU Aero Engines AG
    Inventors: Manfred Feldmann, Norbert Schinko, Janine Sangl
  • Patent number: 9816386
    Abstract: The present invention relates to a gas turbine casing arrangement having a gas turbine casing element (10), a guide-vane ring with an outer ring (20), and a coated ring (30), which lies radially opposite a rotor grid (40) adjacent to the guide-vane ring, whereby an intermediate ring (50) by a downstream front face (51) engages behind an upstream stop (61; 61?) fixed in place on the casing element, and by an upstream front face (52) of a radial flange (53) of the intermediate ring engages behind a downstream stop (22) fixed in place on the outer ring, in order to secure the guide-vane ring axially at the gas turbine casing element in the direction of through-flow.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: November 14, 2017
    Assignee: MTU AERO ENGINES AG
    Inventors: Manfred Feldmann, Franz-Josef Ertl
  • Patent number: 9816379
    Abstract: The present invention relates to a balancing body (1) for fastening to a ring (4, 5) of a continuous blade arrangement of a compressor or turbine stage of a gas turbine, wherein the balancing body has a first stop (11) for the form-fitting attachment of the balancing body in one peripheral direction (R) to a first axial shoulder (6; 7) of the ring.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: November 14, 2017
    Assignee: MTU AERO ENGINES AG
    Inventors: Manfred Feldmann, Andreas Holzel, Amelia Frodyma
  • Patent number: 9784131
    Abstract: The invention relates to a sealing arrangement 15, a guide vane arrangement, and a turbomachine 11 with such a sealing arrangement 15, wherein the sealing arrangement 15 is designed for a guide vane ring 60 of a turbomachine 11, wherein the sealing arrangement 15 comprises a thin-walled annular structure 80 that is substantially closed on all sides, and wherein the annular structure 80 delimits an annular interior space 105, wherein a hollow cell structure 109, which is designed so as to mechanically support the annular structure 80, is provided in the annular interior space 105.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: October 10, 2017
    Assignee: MTU AERO ENGINES AG
    Inventors: Manfred Feldmann, Karl-Heinz Dusel
  • Publication number: 20170241279
    Abstract: The invention relates to a guide vane segment for an aircraft engine, having at least one guide vane element, having at least one flange formed in a radial extension direction (R) of the guide vane element and at least one positioning member projecting from the flange in the radial extension direction (R), and at least one seal carrier, which is arranged at the flange and is aligned relative to the guide vane element by way of the positioning member, wherein the flange has a supporting surface on which the seal carrier is supported, wherein a partial surface of the positioning member is adjacent to the flange at a transition from the flange to the positioning member, and respective surface normal lines of the supporting surface and of the partial surface enclose between them an angle (?) that is different from a zero angle.
    Type: Application
    Filed: February 9, 2017
    Publication date: August 24, 2017
    Inventors: Markus Schlemmer, Manfred Feldmann, Rudolf Stanka, Oliver Thiele
  • Publication number: 20170167522
    Abstract: A fastening assembly having a component flange (10), in particular of a turbomachine, having at least one bore (11) in which a sleeve (30) is placed that extends through a bolt (20) which has a head (21) that is axially secured between a rim (12) of the bore and a component flange-mounted axial limit stop (13).
    Type: Application
    Filed: December 8, 2016
    Publication date: June 15, 2017
    Inventors: Alexander Kloetzer, Manfred Feldmann
  • Publication number: 20170167282
    Abstract: A component joint including a turbomachine component (10) having at least one component flange (11); a mating turbomachine component (20) connected thereto and having at least one mating component flange (21); and at least one seal (30) to provide a seal against an overpressure (p2?p1) on the component side, the at least one seal (30) having a sealing surface (31) that engages into a groove (12) of the turbomachine component (10), the groove (12) being disposed on a mating-component-flange-facing side of the component flange (11) and having a contact surface (13) for sealingly axially supporting the sealing surface (31).
    Type: Application
    Filed: December 8, 2016
    Publication date: June 15, 2017
    Inventors: Alexander Kloetzer, Manfred Feldmann
  • Publication number: 20170159466
    Abstract: The invention relates to a guide vane segment (10) for a gas turbine comprising at least one radially outer shroud (14) and one radially inner shroud (12), which extend along a respective arc and together form an annular segment, wherein, in the radial direction (RR) between the outer shroud (14) and the inner shroud (12), a plurality of guide vanes (16) are arranged adjacent to one another in the peripheral direction (UR) and are joined to the inner shroud (12) and to the outer shroud (14) in a material-bonded manner and, in particular, are joined in a one-piece manner, wherein, in an axial lengthwise direction (AR), the outer shroud (14) comprises an axially front end wall element (22) and an axially rear end wall element (24) in such a way that the outer shroud (14) and the two end walls (22, 24) form a tub-like profile in lengthwise section.
    Type: Application
    Filed: December 2, 2016
    Publication date: June 8, 2017
    Inventors: Markus Schlemmer, Manfred Feldmann, Rudolf Stanka, Oliver Thiele, Bernd Kislinger, Manuel Hein
  • Patent number: 9664057
    Abstract: A stator vane segment (100) of a fluid flow machine, having an upstream casing-side attachment (1) and/or a downstream casing-side attachment (3), and a platform (5). The attachments are provided on the platform (5). The platform (5) has a first sealing section (17) and extends in the direction of flow beyond a connection region (15) that connects the rearward attachment (3) to the platform (5). The first sealing section (17) that is located in a section (18) downstream of the connection region (15) has a first slot (19) which is continuous in the circumferential direction. The present invention also relates to a turbine having at least one stator vane segment (100).
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: May 30, 2017
    Assignee: MTU Aero Engines AG
    Inventors: Manfred Feldmann, Norbert Schinko, Janine Sangl, Alexander Buck
  • Patent number: 9664059
    Abstract: A sealing device (1) is disclosed for sealing a radially inner gas channel (2) between a guide vane ring (4) and a rotor (6) of a turbomachine, wherein the sealing device (1) has a sealing ring (8) for forming a sealed space (10) with a rear segment with an inner wall structure (30) oriented in the opposite direction, which are joined to each other via an annular arch (32), wherein the radial flange (18) transitions into the outer wall structure (28) and the cylinder (26) forms the sealing ring (8), wherein the inner wall structure (30) transitions, via an annular web (36), into at least one inner body segment (38, 50), wherein the sealing device (1) has a uniform, preferably relatively reduced wall thickness over its individual segments integrally formed with one another, so that the sealing device (1) is resilient within certain limits.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: May 30, 2017
    Assignee: MTU AERO ENGINES AG
    Inventors: Manfred Feldmann, Thomas Hess
  • Patent number: 9664065
    Abstract: A turbomachine having a flow channel (6) and a housing (1, 2) which radially surrounds the flow channel, at least one sealing or lining element (11) being situated between the flow channel and the housing, at least one clamping ring (14) being provided, which is situated circumferentially around the flow channel and which is situated in such a way that it abuts at least one contact surface (22) of the at least one sealing or lining element (11).
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: May 30, 2017
    Assignee: MTU Aero Engines AG
    Inventors: Manfred Feldmann, Norbert Schinko, Sebastian Kaltenbach, Christian Eichler
  • Publication number: 20170129061
    Abstract: The present invention relates to an arrangement 1, comprising a first turbomachine element 10 with a first turbomachine element through-opening 12, a second turbomachine element 20, a sliding element 30 with a sliding element through-opening 32 that is arranged, at least in part, in the first turbomachine element through-opening 12, a sleeve 40 that engages through the sliding element through-opening 32 along a through-axis D, and a fastening member 50 that engages through the sleeve 40 for fastening the sleeve 40 to the second turbomachine element 20. Furthermore, the invention relates to a method for fastening the first turbomachine element 10 to the second turbomachine element 20, a turbomachine with the above-mentioned arrangement 1, and use of this arrangement 1.
    Type: Application
    Filed: November 2, 2016
    Publication date: May 11, 2017
    Inventors: Alexander Kloetzer, Manfred Feldmann
  • Patent number: 9605551
    Abstract: A casing structure for a fluid flow machine, in particular for a gas turbine or an aircraft engine, including an outer casing wall and an inner casing wall, which annularly surround a flow channel of the fluid flow machine and are spaced apart in a radial direction with respect to the flow channel. At least one cavity is formed between the inner and outer casing walls. The cavity is axially divided into at least two regions which are separated from each other by an axial seal in such a way that different pressure conditions are created according to the axial position of these regions, which different pressure conditions correspond to the pressure conditions in the flow channel. A corresponding fluid flow machine such as, for example, an aircraft engine.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: March 28, 2017
    Assignee: MTU Aero Engines AG
    Inventors: Manfred Feldmann, Janine Sangl, Sebastian Kaltenbach, Joachim Lorenz
  • 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
  • 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
  • Publication number: 20160326897
    Abstract: A turbomachine includes a seal device for sealing a gap between two components, with a plurality of sealing elements tippable in the direction of a relative displacement of the components. The sealing elements are mounted on one of the components and bridge the gap where the device has prestressing elements, by which the tippable sealing elements are prestressed against a respective sealing edge of the components. The prestressing elements are each supported at a front support point and a back support point of the component on the mounting side, these points being distanced from one another in the axial direction and in the radial direction of the turbomachine where the front support point is disposed radially outside and the back support point is disposed radially inside with respect to the mounting.
    Type: Application
    Filed: May 3, 2016
    Publication date: November 10, 2016
    Inventors: Manfred Feldmann, Daniel Kirchner
  • 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
  • Patent number: 9416672
    Abstract: A housing structure for a turbo-engine, especially for a gas turbine or an aircraft engine, includes an outer housing wall and an inner housing wall, the inner and outer housing walls annularly enclosing a flow channel for the turbo-engine and being spaced apart radially from the flow channel. At least one heat shield is arranged between the inner and outer housing walls, and a bar or a fixture projects at least somewhat radially from the inner housing wall. The bar or the fixture has on at least one side a broadening element that includes a sealing face against which the heat shield is positioned in a sealing manner.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: August 16, 2016
    Assignee: MTU AERO ENGINES AG
    Inventors: Manfred Feldmann, Janine Sangl, Sebastian Kaltenbach, Joachim Lorenz
  • 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