Patents by Inventor Steffen Schlothauer
Steffen Schlothauer 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).
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Publication number: 20230271257Abstract: The invention relates to a method for determining individual vectors for open-loop and/or closed-loop control of at least one energy beam of a layering apparatus, comprising at least the steps of: providing layer data characterizing at least one component layer of a component to be additively manufactured, on the basis of the layer data, determining individual vectors, according to which at least one energy beam is to be moved relative to a construction and joining zone of the layering apparatus in order to solidify a material powder selectively to the component layer, determining at least one node point of a plurality of individual vectors, and adapting at least one property of at least one individual vector of the at least one node point, the at least one property being selected from a group comprising spatial orientation, radiation sequence in relation to at least one other individual vector, and vector length.Type: ApplicationFiled: July 22, 2021Publication date: August 31, 2023Applicant: MTU Aero Engines AGInventors: Sebastian Rott, Katrin Friedberger, Alexander Ladewig, Christian Liebl, Steffen Schlothauer, Johannes Casper, Jonas Weich
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Patent number: 11519296Abstract: 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: GrantFiled: February 12, 2019Date of Patent: December 6, 2022Assignee: MTU Aero Engines AGInventors: Frank Stiehler, Georg Kempinger, Juergen Kraus, Steffen Schlothauer, Christian Liebl, Alois Eichinger, Thomas Koebke
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Publication number: 20220372892Abstract: 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: ApplicationFiled: February 12, 2019Publication date: November 24, 2022Inventors: Frank STIEHLER, Georg KEMPINGER, Juergen KRAUS, Steffen SCHLOTHAUER, Christian LIEBL, Alois EICHINGER, Thomas KOEBKE
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Publication number: 20220288690Abstract: 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: ApplicationFiled: July 13, 2020Publication date: September 15, 2022Applicant: MTU Aero Engines AGInventors: Katrin Friedberger, Sebastian Rott, Steffen Schlothauer, Wolfgang Nietsch
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Publication number: 20220241860Abstract: The invention relates to a layer building process for the additive manufacture of at least one wall region of a component including applying at least one powder layer of a material to at least one building-up and joining zone of at least one movable building platform, carrying out a first solidifying step, in which the material is irradiated selectively with at least one energy beam, wherein irradiation parameters of the at least one energy beam are set so a molten bath is produced and a defect-affected wall region of the wall is produced, without applying a further powder layer, carrying out a second solidifying step, in which the defect-affected wall region produced in the first solidifying step is irradiated selectively with the at least one energy beam, lowering the building platform layer by layer by a predefined layer thickness, and repeating the steps above one or more timesType: ApplicationFiled: March 19, 2020Publication date: August 4, 2022Applicant: MTU Aero Engines AGInventors: Andreas Jakimov, Steffen Schlothauer, Katrin Friedberger
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Patent number: 11248484Abstract: A gas turbine component for a gas turbine is provided. The gas turbine component has a shell portion having an abradable portion (2) to allow rotor blade ends (1) of a rotor blade array of the gas turbine to rub into the same. The abradable portion adjoins a neighboring portion (3) of the shell portion axially at both sides and is additively manufactured together therewith.Type: GrantFiled: February 4, 2016Date of Patent: February 15, 2022Assignee: MTU Aero Engines AGInventors: Steffen Schlothauer, Thomas Hess, Christian Liebl, Richard Scharl, Daniel Kirchner, Alexander Buck
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Patent number: 11125101Abstract: A sealing ring for a turbomachine, in particular a compressor or turbine stage of a gas turbine is provided, the sealing ring having an, in particular at least partially honeycomb-like and/or integral, seal, in particular an abradable coating (13); a profile cross section of the sealing ring, which is in particular at least partially manufactured by a generative manufacturing process, varying in the circumferential direction, in particular at least in some regions continuously and/or non-continuously at one or more circumferential positions, in particular separation points.Type: GrantFiled: June 26, 2018Date of Patent: September 21, 2021Assignee: MTU Aero Engines AGInventors: Christian Scherer, Peter Eibelshaeuser, Steffen Schlothauer, Andreas Jakimov, Juergen Kraus
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Patent number: 10982562Abstract: The present invention relates to a bearing chamber housing for bearing a shaft of a turbomachine, comprising an additively built-up housing section and a cover, which, in each case referred to an axis of rotation of the shaft, connects axially to the housing section and has a radially extending collar, which collar axially bounds an oil space of the bearing chamber housing, wherein the cover is assembled with the housing section and is connected therewith via a weld.Type: GrantFiled: February 7, 2019Date of Patent: April 20, 2021Assignee: MTU Aero Engines AGInventors: Frank Stiehler, Georg Kempinger, Juergen Kraus, Steffen Schlothauer, Christian Liebl, Thomas Koebke, Alois Eichinger
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Patent number: 10830098Abstract: The present invention relates to a bearing chamber housing for bearing a shaft of a turbomachine, having an additively built-up housing wall and a cover of the oil chamber, wherein, in each case referred to an axis of rotation of the shaft, the housing wall bounds radially outwardly an oil chamber of the bearing chamber housing and the cover of the oil chamber disposed on an axial end of the housing wall axially bounds a region of the oil chamber; the region bounds radially inwardly an inner shell of the bearing chamber housing.Type: GrantFiled: May 22, 2019Date of Patent: November 10, 2020Assignee: MTU Aero Engines AGInventors: Frank Stiehler, Georg Kempinger, Juergen Kraus, Steffen Schlothauer, Christian Liebl, Alois Eichinger, Thomas Koebke
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Patent number: 10576581Abstract: An apparatus for laser materials processing including a laser (4) for generating a laser beam and a laser head (5) which is movable along at least one spatial direction and is connected to the laser via a light guide, and which emits a laser beam (7) capable of processing a material. The present invention also relates to an apparatus for selective laser melting or selective laser sintering having an apparatus for laser materials processing.Type: GrantFiled: October 16, 2018Date of Patent: March 3, 2020Assignee: MTU Aero Engines AGInventors: Christian Liebl, Steffen Schlothauer
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Patent number: 10533569Abstract: The segmented seal carrier of a guide vane ring of a turbomachine has a number of segments that form two half-rings of the seal carrier when assembled. They are clamped together by their opposite-lying, corresponding lateral contact regions.Type: GrantFiled: June 21, 2016Date of Patent: January 14, 2020Assignee: MTU Aero Engines AGInventors: Andreas Jakimov, Richard Scharl, Steffen Schlothauer
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Patent number: 10507526Abstract: The invention relates to a method for the additive manufacture of at least one region of a component. Here, at least the following steps are carried out: a) layer-wise application of at least one powder-form component material onto a component platform in the region of a build-up and joining zone; b) layer-wise and local solidifying of the component material by selective exposure of the component material by at least one high-energy beam in the region of the build-up and joining zone, with the formation of a component layer; c) layer- wise lowering of the component platform by a pre-defined layer thickness; and d) repeating steps a) to c) until the component region or the component has been completely fabricated.Type: GrantFiled: March 27, 2017Date of Patent: December 17, 2019Assignee: MTU Aero Engines AGInventors: Christian Liebl, Alexander Ladewig, Laura Buerger, Georg Schlick, Steffen Schlothauer, Karl-Heinz Dusel
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Patent number: 10494940Abstract: A seal segment assembly for a turbomachine, in particular a gas turbine, including a first seal carrier and a second seal carrier, that are adjacently disposed in the circumferential direction, the first seal carrier having a first carrier base and at least one first sealing member that is joined to the first carrier base, and the second seal carrier having a second carrier base and at least one second sealing member that is joined to the second carrier base, the first sealing member and the second sealing member being formed by a plurality of cavities, that are adjacently disposed in the circumferential direction and in the axial direction, in particular evenly spaced, the cavities extending in the radial direction from the particular carrier base. The first carrier base and the second carrier base are intercouplable or are intercoupled in the circumferential direction by a mating connection assembly.Type: GrantFiled: April 5, 2017Date of Patent: December 3, 2019Assignee: MTU Aero Engines AGInventors: Christian Liebl, Steffen Schlothauer, Andreas Jakimov, Alexander Ladewig, Karl Blumenschein, Juergen Kraus
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Publication number: 20190360355Abstract: The present invention relates to a bearing chamber housing for bearing a shaft of a turbomachine, having an additively built-up housing wall and a cover of the oil chamber, wherein, in each case referred to an axis of rotation of the shaft, the housing wall bounds radially outwardly an oil chamber of the bearing chamber housing and the cover of the oil chamber disposed on an axial end of the housing wall axially bounds a region of the oil chamber; the region bounds radially inwardly an inner shell of the bearing chamber housing.Type: ApplicationFiled: May 22, 2019Publication date: November 28, 2019Applicant: MTU Aero Engines AGInventors: Frank Stiehler, Georg Kempinger, Juergen Kraus, Steffen Schlothauer, Christian Liebl, Alois Eichinger, Thomas Koebke
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Patent number: 10385783Abstract: The present invention relates to a seal arrangement for a turbomachine, in particular a gas turbine, having a plurality of rows, arranged in succession in the axial direction (A), of shells (1-3) connected to one another in the circumferential direction (U), wherein shells adjacent in the axial direction have cross sections opened counter to a throughflow direction (A) and/or a thread axis inclined counter to the throughflow direction.Type: GrantFiled: January 22, 2013Date of Patent: August 20, 2019Assignee: MTU AERO ENGINES AGInventors: André Werner, Steffen Schlothauer, Franz Prieschl, Thomas Hess
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Publication number: 20190249569Abstract: The present invention relates to a bearing chamber housing for bearing a shaft of a turbomachine, comprising an additively built-up housing section and a cover, which, in each case referred to an axis of rotation of the shaft, connects axially to the housing section and has a radially extending collar, which collar axially bounds an oil space of the bearing chamber housing, wherein the cover is assembled with the housing section and is connected therewith via a weld.Type: ApplicationFiled: February 7, 2019Publication date: August 15, 2019Applicant: MTU Aero Engines AGInventors: Frank Stiehler, Georg Kempinger, Juergen Kraus, Steffen Schlothauer, Christian Liebl, Thomas Koebke, Alois Eichinger
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Publication number: 20190232371Abstract: A layer-by-layer manufacturing method for the additive production of a region of a component, in particular of a turbomachine. The layer-by-layer manufacturing method includes: a) depositing a powder layer of a material onto a buildup and joining zone of a lowerable build platform; b) locally solidifying the material to form a component layer by selectively irradiating the material using an energy beam in accordance with a predetermined exposure strategy; c) lowering the build platform layer-by-layer by a specified layer thickness; and d) repeating the steps a) through c) until completion of the component region. Following at least one of the steps a) through c), a monitoring system ascertains and evaluates a result of the respective step; at least one intermediate correction step e) is executed for improving the ascertained result when the evaluation reveals an unacceptable deviation from a result specified for the respective step. Also, a corresponding layer-by-layer manufacturing apparatus.Type: ApplicationFiled: January 28, 2019Publication date: August 1, 2019Inventors: Alexander LADEWIG, Joachim BAMBERG, Andreas JAKIMOV, Sebastian ROTT, Steffen SCHLOTHAUER, Daniel GREITEMEIER, Michael SCHACHER
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Publication number: 20190078446Abstract: A blade of a turbomachine is provided, including at least one cooling channel in the interior of the blade for cooling the blade with the aid of a fluid flowing through the cooling channel, the cooling channel having at least one inlet and at least one outlet, between which the cooling channel extends along its longitudinal axis, and the cooling channel being radially delimited by at least one wall, at least one displacement body being situated in the cooling channel, so that an annular or tubular gap between the displacement body and the wall of the cooling channel results in the area of the displacement body/bodies, which is available for the through-flow of the fluid, or at least two or multiple subchannels being formed in the area of the displacement body/bodies. The invention also relates to a method for manufacturing a corresponding blade.Type: ApplicationFiled: September 10, 2018Publication date: March 14, 2019Inventors: Richard Scharl, Johannes Casper, Alexander Ladewig, Christian Liebl, Steffen SCHLOTHAUER, Klaus Semmler
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Publication number: 20190047085Abstract: An apparatus for laser materials processing including a laser (4) for generating a laser beam and a laser head (5) which is movable along at least one spatial direction and is connected to the laser via a light guide, and which emits a laser beam (7) capable of processing a material. The present invention also relates to an apparatus for selective laser melting or selective laser sintering having an apparatus for laser materials processing.Type: ApplicationFiled: October 16, 2018Publication date: February 14, 2019Inventors: Christian LIEBL, Steffen Schlothauer
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Patent number: 10201875Abstract: An apparatus for laser materials processing including a laser (4) for generating a laser beam and a laser head (5) which is movable along at least one spatial direction and is connected to the laser via a light guide, and which emits a laser beam (7) capable of processing a material. The present invention also relates to an apparatus for selective laser melting or selective laser sintering having an apparatus for laser materials processing.Type: GrantFiled: December 11, 2017Date of Patent: February 12, 2019Assignee: MTU Aero Engines AGInventors: Christian Liebl, Steffen Schlothauer