Patents by Inventor Juergen Hoffmann
Juergen Hoffmann 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: 20240288843Abstract: A method for determining an operating parameter of a tool for forming components in a press, comprising the steps of: gathering a semifinished product property for a specified number of blanks from a set comprising a plurality of blanks; ascertaining a mean of the semifinished product property for the specified number of blanks; selecting at least one blank, the semifinished product property of which lies in a specified interval around the mean, from the set; forming the selected blank by means of the tool in the press to produce the component, the tool being operated with the operating parameter; determining a deviation of the component shape of the component from a target value; and, adjusting or maintaining the at least one operating parameter in accordance with the determined deviation.Type: ApplicationFiled: August 2, 2022Publication date: August 29, 2024Inventor: Juergen HOFFMANN
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Patent number: 12073355Abstract: A method for tracking components includes running individual metal blanks with a respective individual part number through a press device to form respective individual components. The components are output on an outflow conveyor belt, removed from the outflow conveyor belt, and arranged in one of a plurality of containers that have a respective container identifier. The movement of the individual components from being output on the outflow conveyor belt until being arranged in the one of the plurality of containers is captured by a camera system. A link is created between respective individual part numbers and respective individual container identifiers and stored in a database.Type: GrantFiled: October 17, 2019Date of Patent: August 27, 2024Assignee: Bayerische Motoren Werke AktiengesellschaftInventor: Juergen Hoffmann
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Patent number: 11325328Abstract: A tool for producing a fiber composite component includes at least two tool portions which have partial cavities and which are moved together in a production position in such a manner that they form a cavity, in which cavity the fiber composite component is produced. Associated with at least a first tool portion there is a retention element which retains the fiber composite component produced in the first tool portion when the tool portions are moved apart after the production of the fiber composite component.Type: GrantFiled: October 3, 2016Date of Patent: May 10, 2022Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Reinhard Brandl, Bernhard Glueck, Juergen Hoffmann, Jan Schuette, Katrin Krukowski
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Publication number: 20220012676Abstract: A method for tracking components includes running individual metal blanks with a respective individual part number through a press device to form respective individual components. The components are output on an outflow conveyor belt, removed from the outflow conveyor belt, and arranged in one of a plurality of containers that have a respective container identifier. The movement of the individual components from being output on the outflow conveyor belt until being arranged in the one of the plurality of containers is captured by a camera system. A link is created between respective individual part numbers and respective individual container identifiers and stored in a database.Type: ApplicationFiled: October 17, 2019Publication date: January 13, 2022Inventor: Juergen HOFFMANN
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Patent number: 10941082Abstract: The glaze is prepared from the following raw materials in percentage by weight: Fire Clay 10%-25%, Feldspar 30%-40%, Sand 30%-40%, Calcium Silicate 8%-12%, Graphane (i.e., disordered crystalline and hydrogenated double bounded Carbon) 5%-15% or C-doped Boron Nitride (CBN) 5%-15%, various metal oxides as pigments and water. This glaze is applied on the standard glazing operation in the ceramic insulator manufacturing process and is fired in a controlled inert-gas atmosphere.Type: GrantFiled: November 6, 2017Date of Patent: March 9, 2021Assignee: PPC AUSTRIA HOLDING GMBHInventors: Markku Ruokanen, Juergen Hoffmann
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Publication number: 20190276373Abstract: The glaze is prepared from the following raw materials in percentage by weight: Fire Clay 10%-25%, Feldspar 30%-40%, Sand 30%-40%, Calcium Silicate 8%-12%, Graphane (i.e., disordered crystalline and hydrogenated double bounded Carbon) 5%-15% or C-doped Boron Nitride (CBN) 5%-15%, various metal oxides as pigments and water. This glaze is applied on the standard glazing operation in the ceramic insulator manufacturing process and is fired in a controlled inert-gas atmosphere.Type: ApplicationFiled: November 6, 2017Publication date: September 12, 2019Inventors: Markku RUOKANEN, Juergen HOFFMANN
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Publication number: 20170298837Abstract: The present disclosure refers to a method for operating a gas turbine with sequential combustors having a first-burner, a first combustion chamber, and a second combustor arranged sequentially in a fluid flow connection. To minimize emissions and combustion stability problems during transient changes when the fuel flow to a second combustor is initiated the method includes the steps of increasing the second fuel flow to a minimum flow, and reducing the first fuel flow to the first-burner of the same sequential combustor and/or the fuel flow to at least one other sequential combustor of the sequential combustor arrangement in order keep the total fuel mass flow to the gas turbine substantially constant. Besides the method a gas turbine with a fuel distribution system configured to carry out such a method is disclosed.Type: ApplicationFiled: June 16, 2017Publication date: October 19, 2017Applicant: ANSALDO ENERGIA SWITZERLAND AGInventors: Adnan EROGLU, Juergen HOFFMANN
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Patent number: 9708983Abstract: The present disclosure refers to a method for operating a gas turbine with sequential combustors having a first-burner, a first combustion chamber, and a second combustor arranged sequentially in a fluid flow connection. To minimize emissions and combustion stability problems during transient changes when the fuel flow to a second combustor is initiated the method includes the steps of increasing the second fuel flow to a minimum flow, and reducing the first fuel flow to the first-burner of the same sequential combustor and/or the fuel flow to at least one other sequential combustor of the sequential combustor arrangement in order keep the total fuel mass flow to the gas turbine substantially constant. Besides the method a gas turbine with a fuel distribution system configured to carry out such a method is disclosed.Type: GrantFiled: September 30, 2014Date of Patent: July 18, 2017Assignee: ANSALDO ENERGIA SWITZERLAND AGInventors: Adnan Eroglu, Juergen Hoffmann
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Publication number: 20170021577Abstract: A tool for producing a fiber composite component includes at least two tool portions which have partial cavities and which are moved together in a production position in such a manner that they form a cavity, in which cavity the fiber composite component is produced. Associated with at least a first tool portion there is a retention element which retains the fiber composite component produced in the first tool portion when the tool portions are moved apart after the production of the fiber composite component.Type: ApplicationFiled: October 3, 2016Publication date: January 26, 2017Inventors: Reinhard BRANDL, Bernhard GLUECK, Juergen HOFFMANN, Jan SCHUETTE, Katrin KRUKOWSKI
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Patent number: 9181875Abstract: An intake manifold is provided for inducting combustion air for a compressor of a gas turbine. The intake manifold includes a plurality of walls that delimit against the environment. Devices are provided for controllable change of the mechanical rigidity of the walls to reduce noise which is generated or is emitted in an air intake region during operation of the gas turbine. A gas turbine is also provided and includes an air intake to which air to be compressed is fed via an intake manifold. The intake manifold having a plurality of walls that delimit against the environment. Devices are provided to controllably change a mechanical rigidity of the walls to reduce noise which is generated or emitted in an air intake region during operation of the gas turbine.Type: GrantFiled: March 29, 2012Date of Patent: November 10, 2015Assignee: ALSTOM TECHNOLOGY LTDInventors: Armin Busekros, Thomas Kramer, Jochem Fischer, Juergen Hoffmann
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Publication number: 20150107257Abstract: A method and gas turbine are provided for the reliable purging of an exhaust gas recirculation line of the gas turbine with exhaust gas recirculation without the use of additional blow-off fans. A blow-off flow of the compressor is used for the purging of the exhaust gas recirculation line. The gas turbine can include at least one purging line which connects a compressor blow-off point to the exhaust gas recirculation line.Type: ApplicationFiled: January 5, 2015Publication date: April 23, 2015Applicant: ALSTOM Technology LtdInventors: Floris VAN STRAATEN, Juergen HOFFMANN
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Publication number: 20150107259Abstract: The present disclosure refers to a method for operating a gas turbine with sequential combustors having a first-burner, a first combustion chamber, and a second combustor arranged sequentially in a fluid flow connection. To minimize emissions and combustion stability problems during transient changes when the fuel flow to a second combustor is initiated the method includes the steps of increasing the second fuel flow to a minimum flow, and reducing the first fuel flow to the first-burner of the same sequential combustor and/or the fuel flow to at least one other sequential combustor of the sequential combustor arrangement in order keep the total fuel mass flow to the gas turbine substantially constant. Besides the method a gas turbine with a fuel distribution system configured to carry out such a method is disclosed.Type: ApplicationFiled: September 30, 2014Publication date: April 23, 2015Inventors: Adnan EROGLU, Juergen HOFFMANN
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Patent number: 8955302Abstract: A method and gas turbine are provided for the reliable purging of an exhaust gas recirculation line of the gas turbine with exhaust gas recirculation without the use of additional blow-off fans. A blow-off flow of the compressor is used for the purging of the exhaust gas recirculation line. The gas turbine can include at least one purging line which connects a compressor blow-off point to the exhaust gas recirculation line.Type: GrantFiled: March 4, 2013Date of Patent: February 17, 2015Assignee: Alstom Technology Ltd.Inventors: Floris Van Straaten, Juergen Hoffmann
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Patent number: 8916985Abstract: A method for the start of a power plant installation which includes a gas turbine, a generator coupled to the gas turbine, and a frequency converter to feed current into an electrical grid. In accordance with the method, during the start of the gas turbine, the generator is connected to the electrical grid via the frequency converter before the operating rotational speed of the gas turbine is reached, wherein the frequency converter is controlled such that it generates an output current with the grid frequency. A power plant installation can execute the above method.Type: GrantFiled: March 26, 2013Date of Patent: December 23, 2014Assignee: ALSTOM Technology Ltd.Inventors: Joerg Oesterheld, Juergen Hoffmann
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Publication number: 20130249213Abstract: The invention relates to a method for the start of a power plant installation (10), which comprises a gas turbine (2), a generator (18) coupled to the gas turbine (2), and a frequency converter (27) to feed current into an electrical grid (1). In accordance with the method, during the start of the gas turbine (2), the generator (18) is connected to the electrical grid (1) via the frequency converter (27) before the operating rotational speed of the gas turbine (2) is reached, wherein the frequency converter (27) is controlled such that it generates an output current with the grid frequency. The invention further relates to a power plant installation (10) for the execution of such a method.Type: ApplicationFiled: March 26, 2013Publication date: September 26, 2013Applicant: ALSTOM TECHNOLOGY LTDInventors: Joerg Oesterheld, Juergen Hoffmann
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Publication number: 20120247109Abstract: An intake manifold is provided for inducting combustion air for a compressor of a gas turbine. The intake manifold includes a plurality of walls that delimit against the environment. Devices are provided for controllable change of the mechanical rigidity of the walls to reduce noise which is generated or is emitted in an air intake region during operation of the gas turbine. A gas turbine is also provided and includes an air intake to which air to be compressed is fed via an intake manifold. The intake manifold having a plurality of walls that delimit against the environment. Devices are provided to controllably change a mechanical rigidity of the walls to reduce noise which is generated or emitted in an air intake region during operation of the gas turbine.Type: ApplicationFiled: March 29, 2012Publication date: October 4, 2012Applicant: ALSTOM TECHNOLOGY LTDInventors: Armin Busekros, Thomas Kramer, Jochem Fischer, Juergen Hoffmann
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Publication number: 20120227372Abstract: A power plant is provided including a steam power plant and/or a combined cycle power plant. A water steam cycle of the plant includes two steam turbine arrangements; the first turbine arrangement includes steam turbines with at least two pressure levels and a second turbine arrangement having at least one back pressure turbine configured to expand steam to the supply pressure of a CO2 capture system. A method for operating the plant includes operating the first steam turbine arrangement to produce power during all steady state operating points of the steam cycle and at least a part of the second steam turbine arrangement is bypassed to the system and/or is operated to produce power and to release low-pressure steam to the system when the system is in operation. Both steam turbine arrangements are operated using all available steam to produce power when the system is not in operation.Type: ApplicationFiled: March 27, 2012Publication date: September 13, 2012Applicant: ALSTOM TECHNOLOGY LTDInventors: Hongtao Li, Francois Droux, Tobias Kjellberg, Juergen Hoffmann
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Publication number: 20120186268Abstract: A method is provided for operating a gas turbine power plant with exhaust gas recirculation, in which, based upon the operating state of the gas turbine a setpoint concentration of at least one constituent in an exhaust gas flow and/or in the intake flow of the gas turbine after adding the recirculated exhaust gases is determined. The actual concentration of the at least one constituent in the exhaust gas flow and/or in the intake flow is measured and a control element for controlling the recirculation flow is controlled based upon the setpoint/actual deviation. Also provided is a gas turbine power plant with exhaust gas recirculation and includes a controller, in which a setpoint concentration of at least one constituent in an exhaust gas flow or in the intake flow of the gas turbine is determined, and a measuring instrument for measuring the actual concentration of the at least one constituent.Type: ApplicationFiled: January 21, 2012Publication date: July 26, 2012Applicant: ALSTOM TECHNOLOGY LTDInventors: Stefan ROFKA, Juergen HOFFMANN, Eribert BENZ, Frank SANDER, Martin NICKLAS
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Publication number: 20120155951Abstract: A device for connecting two components, in particular a linkage of bars (38) and an engine hood (40), has a fastening element (10) and a securing element (24) cooperating with the fastening element (10). The fastening element (10) includes a fastening section (18) for connecting the fastening element (10) with the first component and a receiving section (12) for mounting the second component. The securing element (24) includes first and second securing sections (26, 28) and is transferable to a final assembly position, in which the first securing section (26) secures the connection of the fastening element (10) with the first component and at the same time the second securing section (28) secures the mounting of the second component in the receiving section (12).Type: ApplicationFiled: June 22, 2011Publication date: June 21, 2012Inventors: Hubert Loewe, Juergen Hoffmann, Klaus Hock, Anett Kilian
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Patent number: 7913936Abstract: A silencer in a flow duct (10) comprises at least one plate-shaped element (12) which extends essentially parallel to the throughflow direction (16) of the flow duct. Integrated in the plate-shaped element (12), preferably in the downstream region, are means (13, 14) for feeding and for spraying a liquid (15) into the throughflow of the flow duct. The spraying means are preferably arranged in such a way that the liquid (15) is sprayed at an angle of at least 30° to the throughflow (16). The silencer according to the invention is used, for example, in the intake duct of a gas turboset.Type: GrantFiled: November 9, 2005Date of Patent: March 29, 2011Assignee: Alstom Technology LtdInventor: Juergen Hoffmann