Patents by Inventor Christoph Lehmann
Christoph Lehmann 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: 20240067204Abstract: A method for setting up a virtual ad hoc network for transmitting at least one piece of information to a first transportation vehicle as a first network subscriber. The method includes the information being provided based on first data from at least one second network subscriber, and at least one second network subscriber being a second transportation vehicle or an infrastructure component; wherein a motor-vehicle-external, central data processing device receives second data from multiple potential second network subscribers and takes the second data and at least one space-time parameter as a basis for determining the second network subscribers and setting up the virtual ad hoc network with the first transportation vehicle, as the first network subscriber, and the determined second network subscribers, the space-time parameter defining a specific area of relevance that has a predetermined physical and temporal correlation with the current position of the first transportation vehicle.Type: ApplicationFiled: June 28, 2023Publication date: February 29, 2024Inventors: Christian BRUNS, Jakob SPIEGELBERG, Jan SONNENBERG, Bernd LEHMANN, Laura FIEBACK, Marius SPIKA, Tatjana KRUSCHA, Fabian GALETZKA, Benjamin GROß, Jan KEMPA, Christoph KÖNIG, Marvin SCHRÖDER
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Patent number: 11912692Abstract: The invention relates to substituted S-alaninate derivatives and to processes for their preparation, and also to their use for preparing medicaments for the treatment and/or prophylaxis of diseases, in particular vascular disorders, preferably thrombotic or thromboembolic disorders and/or thrombotic or thromboembolic complications.Type: GrantFiled: August 11, 2023Date of Patent: February 27, 2024Assignee: Bayer AktiengesellschaftInventors: Hartmut Beck, Stefanie Mesch, Alexandros Vakalopoulos, Nils Pfaff, Stefanie Zimmermann, Markus Follmann, Elisabeth Kersten, Guillaume Levilain, Kartrin Partikel, Andreas Peter Broehl, Stefan Heitmeier, Julia Dietze-Torres, Lutz Lehmann, Kersten Matthias Gericke, Frank Süßmeier, Lars Bärfacker, Alexander Hillisch, Adrian Tersteegen, Anja Buchmüller, Christoph Gerdes
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Publication number: 20230060670Abstract: A self-propelled forage harvester and a method for controlling said forage harvester are disclosed. A measuring device of the forage harvester may have a plurality of electrodes spaced at a distance from each other. These electrodes may be arranged or positioned in an intermediate channel of a harvested material processing channel of the forage harvester and may form a plurality of capacitors. Further, delivery-specific parameters and/or material-specific parameters may be discernible from the measurements of the electrical capacitances of the plurality of capacitors.Type: ApplicationFiled: August 23, 2022Publication date: March 2, 2023Applicant: CLAAS Selbstfahrende Erntemaschinen GmbHInventors: Christoph Lehmann, Dennis Neitemeier, Christoph Heitmann
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Publication number: 20210359576Abstract: A water chamber cover for connecting a water hose to a water chamber bottom plate of a directly water-cooled stator bar, having a peripheral groove, which is open on a side facing away from the water chamber and which is designed to hold the water hose. A method is for assembling a cooling water circuit for a directly water-cooled stator bar.Type: ApplicationFiled: July 13, 2017Publication date: November 18, 2021Applicant: Siemens AktiengesellschaftInventors: Andrey MASHKIN, Mario BROCKSCHMIDT, Christoph LEHMANN, Daniel HANSMANN, Rene HÖHNER, Ralf MERTE, Friedhelm POHLMANN, Markus WYSGOL
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Patent number: 11005317Abstract: A rotor body for a rotor of a rotating electric machine, in particular a turbogenerator, has at least one pole axis extending perpendicularly to a longitudinal center axis of the rotor body. At least one section of the rotor body has at least two layers produced from different materials, which layers are arranged in alternation, wherein the materials differ from each other with respect to the electrical conductivity thereof. A layer sequence direction of a layer structure formed by the layers extends perpendicularly to the pole axis and to the longitudinal center axis.Type: GrantFiled: April 18, 2017Date of Patent: May 11, 2021Assignee: Siemens Energy Global GmbH & Co. KGInventors: Matthias Kowalski, Christoph Lehmann
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Patent number: 10910897Abstract: A water-cooled generator strip having at least two conductor stacks which are arranged parallel and in each case have a plurality of conductors arranged one above the other and electrically insulated from one another by a conductor insulation, wherein the conductors are secured geometrically relative to one another by a cured resin, and wherein between the conductor stacks a gap space is provided, in which at least one cooling channel is arranged for conveying cooling water.Type: GrantFiled: May 31, 2017Date of Patent: February 2, 2021Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Andrey Mashkin, Mario Brockschmidt, Ralf Merte, Friedhelm Pohlmann, Christoph Lehmann, Bobby A. Warren
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Publication number: 20190305705Abstract: A method for supplying an excitation current to an excitation winding of a rotor of a three-phase generator of a system for producing a three-phase alternating voltage to be fed into a power network. A pulsed excitation current is supplied to the excitation winding if a rotational frequency of the rotor deviates from a network frequency of the power network.Type: ApplicationFiled: April 21, 2017Publication date: October 3, 2019Applicant: Siemens AktiengesellschaftInventors: Martin Bennauer, Manuel Gutermuth, Christian Jäkel, Meinolf Klocke, Mario Koebe, Matthias Kowalski, Marian-Peter Pieczyk, Holger Romanowski, Florian Röhr, Milan Schmahl, Christoph Lehmann, Pascal Piasecki, Andrey Mashkin, Kai Brune
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Publication number: 20190288589Abstract: A three-phase generator for an installation for generating a three-phase alternating voltage, has a two-pole rotor having two magnetic poles, wherein the magnetic poles are arranged irregularly and offset to one another on the periphery with respect to a rotor rotational axis of the rotorType: ApplicationFiled: April 18, 2017Publication date: September 19, 2019Applicant: Siemens AktiengesellschaftInventors: Christian Jäkel, Meinolf Klocke, Christoph Lehmann, Marian-Peter Pieczyk, Holger Romanowski, Milan Schmahl
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Publication number: 20190245399Abstract: A water-cooled generator strip having at least two conductor stacks which are arranged parallel and in each case have a plurality of conductors arranged one above the other and electrically insulated from one another by a conductor insulation, wherein the conductors are secured geometrically relative to one another by a cured resin, and wherein between the conductor stacks a gap space is provided, in which at least one cooling channel is arranged for conveying cooling water.Type: ApplicationFiled: May 31, 2017Publication date: August 8, 2019Applicant: Siemens AktiengesellschaftInventors: Andrey Mashkin, Mario Brockschmidt, Ralf Merte, Friedhelm Pohlmann, Christoph Lehmann, Bobby A. Warren
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INSTALLATION AND METHOD FOR GENERATING A THREE-PHASE AC VOLTAGE TO BE FED INTO A POWER SUPPLY SYSTEM
Publication number: 20190190420Abstract: An installation for generating a three-phase AC voltage to be fed into a power supply system, having a transformer connected to a three-phase generator on the output side to convert a first three-phase AC voltage into a second three-phase AC voltage having a second voltage level, which is lower than a first voltage level and a first frequency, and having a frequency converter connected to the transformer on the output side to supply a rotor winding with a third three-phase AC voltage to convert the second three-phase AC voltage into the third three-phase AC voltage having the second voltage level and a second frequency which is lower than the first frequency, wherein the frequency converter is designed such that the second frequency corresponds to a difference between a mains frequency of the power supply system and the first frequency.Type: ApplicationFiled: April 20, 2017Publication date: June 20, 2019Applicant: Siemens AktiengesellschaftInventors: Christoph LEHMANN, Uwe JURETZEK -
Publication number: 20190157926Abstract: A rotor body for a rotor of a rotating electric machine, in particular a turbogenerator, has at least one pole axis extending perpendicularly to a longitudinal center axis of the rotor body. At least one section of the rotor body has at least two layers produced from different materials, which layers are arranged in alternation, wherein the materials differ from each other with respect to the electrical conductivity thereof. A layer sequence direction of a layer structure formed by the layers extends perpendicularly to the pole axis and to the longitudinal center axis.Type: ApplicationFiled: April 18, 2017Publication date: May 23, 2019Applicant: Siemens AktiengesellschaftInventors: Matthias Kowalski, Christoph Lehmann
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Patent number: 10218236Abstract: An electrodynamic machine includes a housing and a rotor, as well as a neutral point, wherein the neutral point is located inside the housing and the neutral point ends are interconnected by means of shorting bridges, and the shorting bridges are designed such that the neutral point ends inside the generator housing are electrically isolated from each other.Type: GrantFiled: February 20, 2014Date of Patent: February 26, 2019Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Waldemar Kowalski, Christoph Lehmann
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Patent number: 10199903Abstract: A device for deflecting at least a portion of a cooling fluid flowing axially in an intermediate space is arranged between a rotor and a stator of a rotating electrical machine, in particular of a turbogenerator, wherein at least one blade can be arranged on a prespecifiable section of an outer face of the rotor and in the intermediate space, which blade is designed and can be arranged in such a way that a portion of the cooling fluid flowing in the intermediate space can be radially deflected in the direction of the stator by said blade.Type: GrantFiled: September 11, 2014Date of Patent: February 5, 2019Assignee: Siemens AktiengesellschaftInventors: Esteban Grau Sorarrain, Christian Jäkel, Mario Koebe, Matthias Kowalski, Christoph Lehmann, Andrey Mashkin, Olga Plotnikova, Carolin Schild
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Publication number: 20180331623Abstract: Devices and methods are provided which regulate a voltage supplied to an input/output circuit if a voltage at a pad exceeds a threshold.Type: ApplicationFiled: May 10, 2017Publication date: November 15, 2018Inventors: Stefan Drapatz, Hans Christoph Lehmann
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Patent number: 10116188Abstract: An electric machine having a stator and a rotor arranged on an axis of rotation and a first fan, which extends in the radial direction on one section of the axis of rotation and delivers a coolant flow into the electric machine during operation. The electric machine further includes a fan directing element, which interacts with the first fan and deflects at least a proportion of the coolant flow. Variable and demand-based cooling of the electric machine can be achieved by the fan directing element, which can in particular be adjustable.Type: GrantFiled: September 12, 2014Date of Patent: October 30, 2018Assignee: Siemens AktiengesellschaftInventors: Esteban Grau Sorarrain, Christian Jäkel, Mario Koebe, Matthias Kowalski, Christoph Lehmann, Andrey Mashkin, Olga Plotnikova, Carolin Schild
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Patent number: 9991765Abstract: A cooling device for an electric motor includes at least one closed capillary tube, within which a cooling fluid is located and which is introduced into an opening of a lamination stack of the electric motor such that the capillary tube is connected to the lamination stack to conduct heat and partially projects out of the lamination stack, such that the capillary tube has a cold end disposed outside and a hot end disposed inside the lamination stack. The cooling fluid and the degree of filling of the capillary tube with the cooling fluid is chosen such that an input of heat from the lamination stack into the capillary tube leads to evaporation of the cooling fluid, and the cold end of the capillary tube is cooled such that vapor produced during the evaporation condenses and heat input into the capillary tube is dissipated out of the capillary tube.Type: GrantFiled: September 3, 2014Date of Patent: June 5, 2018Assignee: Siemens AktiengesellschaftInventors: Esteban Grau Sorarrain, Christian Jäkel, Mario Koebe, Matthias Kowalski, Christoph Lehmann, Andrey Mashkin, Olga Plotnikova, Carolin Schild
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Patent number: 9866090Abstract: An electric machine such as for example, an electric generator, is provided having a lock system which enables a monitoring device to be housed in the machine such that the generator is not required to be purged. The machine, which can be filled with a gas, with a housing, wherein a first chamber is arranged on the housing, wherein a first flap valve is arranged between the housing and the first chamber, creating a fluidic connection between said housing and first chamber, and a second chamber which is arranged on the first chamber, wherein a second flap valve is arranged between the first and the second chambers, creating a fluidic connection between said first chamber and second chamber, wherein a monitoring device for inspection purposes is provided in the housing.Type: GrantFiled: June 17, 2013Date of Patent: January 9, 2018Assignee: Siemens AktiegesellschaftInventors: Waldemar Kowalski, Christoph Lehmann
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Patent number: 9847700Abstract: A monitoring system for monitoring an electric machine is provided. A mini-camera for observing the electric machine is arranged inside the electric machine. Moreover, the mini-camera is arranged movably on guide elements, wherein the guide element is designed in such a way that the mini-camera is held in an uncritical parked position during the operation of the electric machine.Type: GrantFiled: June 11, 2013Date of Patent: December 19, 2017Assignee: Siemens AktiengesellschaftInventors: Waldemar Kowalski, Christoph Lehmann
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Publication number: 20170353064Abstract: An arrangement for cooling at least one axial end region of a stator in a rotating electrical machine, having: at least one annular chamber which is disposed on the radially outer periphery of at least one portion of the axial end region having at least one radial cooling duct, and which on the radially inner part towards the axial end portion is at least partially open and is communicatingly connected to the radial cooling duct, and which is sealed with respect to the axial end region; and at least one low-pressure line which is communicatingly connected to the annular chamber, and via which the annular chamber is communicatingly connected to a low-pressure chamber in the rotating electrical machine which, relative to a flow of cooling fluid that is created by a shaft-mounted fan on a rotor in the rotating electric machine, is upstream of the shaft-mounted fan.Type: ApplicationFiled: October 30, 2015Publication date: December 7, 2017Applicant: Siemens AktiengesellschaftInventors: Thorsten Krol, Christoph Lehmann, Andrey Mashkin
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Patent number: 9712013Abstract: A winding for an electric machine is provided. The electric machine includes conductor bars which are arranged one above the other and each of which has a cooling slot. The conductor bars are designed such that the height of the conductor bars increases in the radial direction and the effective cooling cross-section decreases in the radial direction.Type: GrantFiled: June 21, 2013Date of Patent: July 18, 2017Assignee: Siemens AktiengesellschaftInventors: Waldemar Kowalski, Christoph Lehmann