Patents by Inventor Christian Jäkel
Christian Jäkel 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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Patent number: 11703181Abstract: The invention relates to a control system for reducing rotor vibrations, in particular the variability thereof, in shafting, in particular turbine shafting, in which the temperature of the bearing (6) of the shaft is measured and the oil (8) supplied to the bearing is adjusted to a temperature as is assigned as the output variable in an allocation for minimised rotor vibrations with the measured temperature of the bearing as the input variable. The allocation can, for example, be provided by an initial measurement of the rotor vibrations or by a self-learning system. According to the invention, the variability of the rotor vibrations is restricted.Type: GrantFiled: August 9, 2018Date of Patent: July 18, 2023Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Andrey Mashkin, Robin Burzan, Sebastian Zahn, Gerta Zimmer, Esteban Grau Sorarrain, Alexander Münnekhoff, Florian Röhr, Christian Jäkel, Matthias Kowalski
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Patent number: 11143403Abstract: Provided is a silo combustion chamber comprising a vertically extending flame tube that can be lit from above and through which circulation takes place in a downward motion, the outer surface of the flame tube being provided with a plurality of cooling fluid supply openings and the inside thereof being lined with ceramic heat shield elements, the lowest heat shield elements being supported on a metal supporting ring; a conically tapered mixing tube arranged downstream from the flame tube, into which the lower region of the flame tube is set; and an outer housing that surrounds the flame tube and the mixing tube, forming an annular supply channel, the lowest heat shield elements completely covering the radially inwardly oriented surfaces of the supporting ring. Also provided is a method for retrofitting a silo combustion chamber.Type: GrantFiled: March 15, 2018Date of Patent: October 12, 2021Inventors: Giuseppe Gaio, Christian Jäkel, Katrin Linnemann, Maria de la Paz Mosquera Ruiz, Sonja Rehmann, Petros Terzis, Bernd Vonnemann, Michael Winterstein
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Publication number: 20200256393Abstract: The invention relates to a control system for reducing rotor vibrations, in particular the variability thereof, in shafting, in particular turbine shafting, in which the temperature of the bearing (6) of the shaft is measured and the oil (8) supplied to the bearing is adjusted to a temperature as is assigned as the output variable in an allocation for minimised rotor vibrations with the measured temperature of the bearing as the input variable. The allocation can, for example, be provided by an initial measurement of the rotor vibrations or by a self-learning system. According to the invention, the variability of the rotor vibrations is restricted.Type: ApplicationFiled: August 9, 2018Publication date: August 13, 2020Applicant: Siemens AktiengesellschaftInventors: Andrey Mashkin, Robin Burzan, Sebastian Zahn, Gerta Zimmer, Esteban Grau Sorarrain, Alexander Münnekhoff, Florian Röhr, Christian Jäkel, Matthias Kowalski
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Publication number: 20200141580Abstract: Provided is a silo combustion chamber comprising a vertically extending flame tube that can be lit from above and through which circulation takes place in a downward motion, the outer surface of the flame tube being provided with a plurality of cooling fluid supply openings and the inside thereof being lined with ceramic heat shield elements, the lowest heat shield elements being supported on a metal supporting ring; a conically tapered mixing tube arranged downstream from the flame tube, into which the lower region of the flame tube is set; and an outer housing that surrounds the flame tube and the mixing tube, forming an annular supply channel, the lowest heat shield elements completely covering the radially inwardly oriented surfaces of the supporting ring. Also provided is a method for retrofitting a silo combustion chamber.Type: ApplicationFiled: March 15, 2018Publication date: May 7, 2020Inventors: Giuseppe Gaio, Christian Jäkel, Katrin Linnemann, Maria de la Paz Mosquera Ruiz, Sonja Rehmann, Petros Terzis, Bernd Vonnemann, Michael Winterstein
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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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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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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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Publication number: 20170310178Abstract: A rotor body for a rotor of a rotating electrical machine, having a plurality of rotor teeth which are arranged in a manner distributed over the circumference and run in an axial manner, axially running receiving slots for receiving in each case one conductor section of a rotor winding of the rotor being arranged between the rotor teeth. At least one slot is arranged on at least one radial side wall of at least one rotor tooth, the slot having at least one axial slot section, which extends from an end side of the rotor body at least partially axially over a prespecified subsection of the rotor body, and at least one radial slot section, which is connected to the axial slot section so as to communicate with it and extends from the axial slot section at least partially radially to an outer casing surface of the rotor body.Type: ApplicationFiled: October 5, 2015Publication date: October 26, 2017Applicant: Siemens AktiengesellschaftInventors: Christian JÄKEL, Matthias KOWALSKI, Omer MRKULIC
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Publication number: 20170257007Abstract: A generator for a power plant and a method for cooling the generator, where the generator includes a stator and a rotor, the stator carrying conductors. The conductors for a winding overhang at least at one end of the stator and the generator has a fan for cooling the winding overhang. The fan produces a cooling air flow directed onto the winding overhang and has an axial component and a radial component.Type: ApplicationFiled: August 27, 2015Publication date: September 7, 2017Applicant: Siemens AktiengesellschaftInventors: Jan-Henrik Braam, Christoph Evers, Simon Gertz, Esteban Grau Sorarrain, Oliver Haberer, Markus Hagedorn, Christian Jäkel, Mario Koebe, Matthias Kowalski, Omer Mrkulic, Markus Mölders, Carolin Schild
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Publication number: 20160305280Abstract: A steam power plant with a liquid/steam circuit includes a steam generator for converting a liquid into steam, a steam turbine and a condenser for converting the steam into the liquid, a generator and a liquid cooling system for the generator, wherein the liquid cooling system has a connection to the liquid/steam circuit via a bypass-like path of flow through which the liquid from the liquid/steam circuit can be branched out to the liquid cooling system and can be led back from the liquid cooling system to the liquid/steam circuit.Type: ApplicationFiled: September 18, 2014Publication date: October 20, 2016Applicant: 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: 20160273410Abstract: A thermal power plant with a generator, includes a cooling system for the generator, wherein the waste heat released from the generator on cooling can be used profitably for operating the thermal power plant, including drying fuel, in particular for drying coal. In a method for using waste heat of a generator of a thermal power plant, the waste heat of the generator is used for drying fuel, in particular for drying coal.Type: ApplicationFiled: September 18, 2014Publication date: September 22, 2016Applicant: 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: 20160254729Abstract: 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: ApplicationFiled: September 12, 2014Publication date: September 1, 2016Applicant: 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: 20160241111Abstract: 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: ApplicationFiled: September 11, 2014Publication date: August 18, 2016Applicant: 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: 20160226345Abstract: 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 vapour produced during the evaporation condenses and heat input into the capillary tube is dissipated out of the capillary tube.Type: ApplicationFiled: September 3, 2014Publication date: August 4, 2016Applicant: 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: 20160226325Abstract: A cooling device for an electric machine includes a stator winding having at least one laminated stator core, which at least one laminated stator core has at least one laminated stator core and at least one stator winding head, wherein the cooling device has a plurality of channels through which a coolant can flow, which channels are connected to a pressure accumulator at a first end and leads into an impingement cooling plate and/or into a channel of a stator winding head at a second end of the channels. An electric machine includes a rotor and a stator, which stator has at least one stator winding, which has at least one laminated stator core and at least one stator winding head; wherein the electric machine includes a cooling device. The electric machine can be a generator and/or a motor.Type: ApplicationFiled: September 3, 2014Publication date: August 4, 2016Applicant: 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: 20160208693Abstract: A power station having a gas turbine, a generator driven by the gas turbine for generation of electrical power, and a hydrogen cooling circuit for discharging lost heat from the generator, wherein the hydrogen cooling circuit has a feed line for feeding hydrogen from a hydrogen tank into the generator and a discharge line for discharging heated hydrogen from the generator, and wherein the discharge line is connected to a mixing device, such that the heated hydrogen from the discharge line can be mixed with a further fuel and is fed by means of a fuel feed line to the gas turbine.Type: ApplicationFiled: September 15, 2014Publication date: July 21, 2016Applicant: Siemens AktiengesellschaftInventors: Esteban Grau Sorarrain, Christian Jäkel, Mario Koebe, Matthias Kowalski, Christoph Lehmann, Andrey Mashkin, Olga Plotnikova, Carolin Schild