Patents by Inventor Ralf Bell
Ralf Bell 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: 11286777Abstract: By applying material on only one side in the case of a revision, seal rings can be easily rebuilt and reused.Type: GrantFiled: April 20, 2018Date of Patent: March 29, 2022Assignee: SIEMENS ENERGY GLOBAL GMBH & CO. KGInventors: Ralf Bell, Anett Bergmann, Christoph Bieniakonski, Marius Busschulte, Stephan Ernst, Bora Kocdemir, Markus Legenbauer, Adam Maguire, Michael Oehmichen, Daniel Ostwald, Ulrich Stanka, Andreas Ulma, Niclas van der Lest
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Publication number: 20210285333Abstract: A method for checking a steam turbine, wherein a first operating variable and a second operating variable are determined, wherein a correlation between the first and second operating variable prevails, and a confidence band having an upper maximum value and a lower minimum value is created, wherein a notification is generated as long as the second operating variable is outside the confidence band during operation.Type: ApplicationFiled: April 20, 2018Publication date: September 16, 2021Applicant: Siemens AktiengesellschaftInventors: Henning Almstedt, Ralf Bell, Ulrich Beul, Kai Brune, Robin Burzan, Matthias Heue, Benedikt Hofmeister, Mario Koebe, Michael Löhr, Stefan Riemann, Andreas Schaarschmidt, Andreas Ulma, Sebastian Zahn, Gerta Zimmer
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Publication number: 20210262988Abstract: A method for performing a resonance test on a multicomponent component wherein fast and simple classification of the state of the component is ensured by carrying out the resonance test in an automated manner on blade assemblies, in which frequency images of new and used components are compared with each other. For performing a resonance test by direct mechanical excitation of a multicomponent component in the initial state, relevant acoustic parameters of the airborne sound are determined or are numerically computed and deposited in a database. The method includes performing an excitation of a component after use in order to produce structure-borne vibrations in the component and the airborne sound resulting therefrom, measuring the airborne sound by a spaced-apart microphone, determining the relevant acoustic parameters, wherein this is compared with the initial state, and deviations are detected.Type: ApplicationFiled: July 9, 2019Publication date: August 26, 2021Applicant: Siemens Energy Global GmbH & Co. KGInventors: Ingo Balkowski, Ralf Bell, Uwe Pfeifer
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Publication number: 20210140925Abstract: A fast and simple classification of the state of the component is ensured by carrying out the resonance test in an automated manner on blade assemblies, in which frequency images of new and used components are compared with each other.Type: ApplicationFiled: April 12, 2018Publication date: May 13, 2021Inventors: Ralf Bell, Uwe Pfeifer, Ingo Balkowski
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Publication number: 20210086264Abstract: Provided is a sealing component, in particular for sealing a vapor chamber with respect to the surroundings or two vapor chambers having different pressures, including at least one ring- or ring-segment-shaped main body, which is at least substantially U-shaped in cross-section and which has two end-face walls and a lateral wall connecting the two end-face walls, a support structure being provided within the main body, which support structure connects the two end-face walls to each other.Type: ApplicationFiled: March 14, 2018Publication date: March 25, 2021Inventors: Ralf Bell, Anett Bergmann, Christoph Bieniakonski, Marius Busschulte, Stephan Ernst, Bora Kocdemir, Markus Legenbauer, Adam Maguire, Michael Oehmichen, Daniel Ostwald, Ulrich Stanka, Andreas Ulma, Niclas van der Lest
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Publication number: 20200200010Abstract: By applying material on only one side in the case of a revision, seal rings can be easily rebuilt and reused.Type: ApplicationFiled: April 20, 2018Publication date: June 25, 2020Inventors: Ralf Bell, Anett Bergmann, Christoph Bieniakonski, Marius Busschulte, Stephan Ernst, Bora Kocdemir, Markus Legenbauer, Adam Maguire, Michael Oehmichen, Daniel Ostwald, Ulrich Stanka, Andreas Ulma, Niclas van der Lest
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Method for carrying out a sound test of atleast one component and endoscope device used for the same
Patent number: 10302527Abstract: A method is provided for carrying out a sound test for detecting and/or analyzing material faults and/or mounting faults of at least one component, in which the component is excited, by striking, to experience vibrations which generate soundwaves, after which the generated soundwaves are detected and conclusions are drawn about material faults and/or mounting faults on the basis of the detected soundwaves, wherein the striking of the component and the detection of the vibrations are carried out using an endoscope device. In addition, embodiments of the present invention relates to an endoscope device which is configured to carry out the method.Type: GrantFiled: March 3, 2017Date of Patent: May 28, 2019Assignee: Siemens AktiengesellschaftInventors: Henning Almstedt, Ralf Bell, Ulrich Beul, Kai Brune, Robin Burzan, Matthias Heue, Benedikt Hofmeister, Mario Koebe, Michael Löhr, Stefan Riemann, Andreas Schaarschmidt, Andreas Ulma, Sebastian Zahn, Gerta Zimmer -
Patent number: 10125626Abstract: A seal arrangement (15; 26; 43; 50) for sealing an annular gap (14) between a high-pressure steam space (12) and an adjacent low-pressure steam space (13). The gap is defined between two turbine casings (10, 11) each split into two casing halves, the seal arrangement (15; 26; 43; 50) has a seal element (24; 47; 58) which is formed in a segmented and annular manner and extends between the two turbine casings (10, 11) and engages in an annular receiving groove (9, 23; 30, 34; 49; 54) by means of at least one of its radial end regions. The seal arrangement (15; 26; 43; 50) has at least one segmented ring (16, 20; 27, 31; 44; 51; 55) with a first circumferential surface (17, 21; 28, 32; 45; 52, 56) releasably attached to one of the turbine casings (10, 11) in the region of the annular gap (14), and has an opposite second circumferential surface (18, 22; 29, 33; 46; 53, 57) with the annular receiving groove (9, 23; 30, 34; 54) or, in a one-piece form, with the radially projecting annular seal element (47; 58).Type: GrantFiled: October 15, 2014Date of Patent: November 13, 2018Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Ralf Bell, Isabell Böer, Giuseppe Gaio, Raimund Heinze, Markus Legenbauer, Damian Razowski, Thomas Riedel, Stanislaw Ruda, Ralf Ziwes
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Publication number: 20170261399Abstract: A method is provided for carrying out a sound test for detecting and/or analyzing material faults and/or mounting faults of at least one component, in which the component is excited, by striking, to experience vibrations which generate soundwaves, after which the generated soundwaves are detected and conclusions are drawn about material faults and/or mounting faults on the basis of the detected soundwaves, wherein the striking of the component and the detection of the vibrations are carried out using an endoscope device. In addition, embodiments of the present invention relates to an endoscope device which is configured to carry out the method.Type: ApplicationFiled: March 3, 2017Publication date: September 14, 2017Inventors: HENNING ALMSTEDT, RALF BELL, ULRICH BEUL, KAI BRUNE, ROBIN BURZAN, MATTHIAS HEUE, BENEDIKT HOFMEISTER, MARIO KOEBE, MICHAEL LÖHR, STEFAN RIEMANN, ANDREAS SCHAARSCHMIDT, ANDREAS ULMA, SEBASTIAN ZAHN, GERTA ZIMMER
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Publication number: 20170074105Abstract: A method of producing a turbine rotor, in particular a steam turbine rotor, is provided. A forged and machined existing steam turbine rotor having partially larger dimensions as dimensions of an intended rotor is provided. The form of the existing rotor is compared with the form of the intended rotor and a position of the intended rotor within the existing rotor is chosen. Material is applied by build-up welding on portions of the existing rotor where not enough material is present for machining the intended rotor at the chosen position. The intended rotor is produced at the chosen position by machining the existing rotor.Type: ApplicationFiled: November 21, 2016Publication date: March 16, 2017Inventors: Ralf Bell, Gary Griffin, Jeremy Marshall
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Publication number: 20160208930Abstract: A valve for shutting off and/or controlling the throughflow of fluid flows is provided. A valve housing, having a valve seat contact surface, a valve cover with a valve cover thickness which is provided with a material allowance, and the valve body form together a first, maximum lift; and when the worn region of the valve seat contact surface is removed, the valve cover thickness can be removed such that the first, maximum lift remains the same or remains the same with only minor deviations; and/or the valve housing, valve seat contact surface, valve cover with the valve cover thickness, and the valve body is provided with a material allowance form a first, particularly maximum lift; and when the worn region of the valve seat contact surface is removed, the valve body can be removed such that the first, maximum lift remains the same or with only minor deviations.Type: ApplicationFiled: September 23, 2014Publication date: July 21, 2016Inventors: RALF BELL, ISABELL BÖER, THOMAS FISCHER, GIUSEPPE GAIO, RAIMUND HEINZE, MARKUS LEGENBAUER, DAMIAN RAZOWSKI, THOMAS RIEDEL, STANISLAW RUDA, RALF ZIWES
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Publication number: 20150231690Abstract: A method of producing a turbine rotor, in particular a steam turbine rotor, is provided. A forged and machined existing steam turbine rotor having partially larger dimensions as dimensions of an intended rotor is provided. The form of the existing rotor is compared with the form of the intended rotor and a position of the intended rotor within the existing rotor is chosen. Material is applied by build-up welding on portions of the existing rotor where not enough material is present for machining the intended rotor at the chosen position. The intended rotor is produced at the chosen position by machining the existing rotor.Type: ApplicationFiled: February 17, 2014Publication date: August 20, 2015Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Ralf Bell, Gary Griffin, Jeremy Marshall
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Publication number: 20150110620Abstract: A seal arrangement (15; 26; 43; 50) for sealing an annular gap (14) between a high-pressure steam space (12) and an adjacent low-pressure steam space (13). The gap is defined between two turbine casings (10, 11) each split into two casing halves, the seal arrangement (15; 26; 43; 50) has a seal element (24; 47; 58) which is formed in a segmented and annular manner and extends between the two turbine casings (10, 11) and engages in an annular receiving groove (9, 23; 30, 34; 49; 54) by means of at least one of its radial end regions. The seal arrangement (15; 26; 43; 50) has at least one segmented ring (16, 20; 27, 31; 44; 51; 55) with a first circumferential surface (17, 21; 28, 32; 45; 52, 56) releasably attached to one of the turbine casings (10, 11) in the region of the annular gap (14), and has an opposite second circumferential surface (18, 22; 29, 33; 46; 53, 57) with the annular receiving groove (9, 23; 30, 34; 54) or, in a one-piece form, with the radially projecting annular seal element (47; 58).Type: ApplicationFiled: October 15, 2014Publication date: April 23, 2015Inventors: Ralf BELL, Isabell BÖER, Giuseppe GAIO, Raimund HEINZE, Markus LEGENBAUER, Damian RAZOWSKI, Thomas RIEDEL, Stanislaw RUDA, Ralf ZIWES
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Publication number: 20150060718Abstract: A valve diffuser (3) for a valve (1), wherein the valve diffuser (3) has a valve seat (8) to make contact with a valve body. The valve seat (8) has a bushing (10) for making contact with a valve body. The bushing is formed from a different reinforced material wherein the valve diffuser (3) and preferably stellite.Type: ApplicationFiled: August 29, 2014Publication date: March 5, 2015Inventors: Ralf BELL, Isabell BÖER, Thomas FISCHER, Giuseppe GAIO, Raimund HEINZE, Markus LEGENBAUER, Damian RAZOWSKI, Thomas RIEDEL, Stanislaw RUDA, Ralf ZIWES
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Patent number: 6345952Abstract: A steam turbine has a turbine shaft directed along a turbine axis. A plurality of turbine stages, each include a guide-blade structure and a moving-blade configuration located axially downstream of the guide-blade structure. The guide-blade structure and the moving-blade configuration are provided along the turbine shaft. Each stage has an average reaction degree achievable between 5% and 70%. The reaction degree of at least two turbine stages is of different values.Type: GrantFiled: July 14, 1999Date of Patent: February 12, 2002Assignee: Siemens AktiengesellschaftInventors: Heinrich Oeynhausen, Wilfried Ulm, Ralf Bell, Ulrich Capelle, Jan-Erik Mühle, Mikhail Simkine, Ingo Stephan, Volker Simon
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Patent number: 6305901Abstract: A steam turbine has a high-pressure turbine section and a medium-pressure turbine section fluidically connected to the high-pressure turbine section. The high-pressure turbine section is a chamber configuration and the medium-pressure turbine section is a drum configuration. Alternatively, the high-pressure turbine section is a drum configuration and the medium-pressure turbine section is a chamber configuration. Alternatively, or additionally, the high-pressure turbine section is a double-flow configuration and the medium-pressure turbine section is a double-flow configuration.Type: GrantFiled: July 14, 1999Date of Patent: October 23, 2001Assignee: Siemens AktiengesellschaftInventors: Ralf Bell, Ulrich Capelle, Armin Drosdziok, Jan-Erik Mühle, Mikhail Simkine, Ingo Stephan, Volker Simon
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Patent number: 6213711Abstract: The invention relates to a steam turbine (1) which has a flow duct (2) with a wall (3). Blading (5) is arranged in blading rings (55) in the flow duct (2). The wall (3) of the flow duct (2) has a grooved structure (6) which purposefully influences the flow of an active fluid (13) through the flow duct (2). In particular, a spacing surface (31) with a grooved structure (6) is located between each two blades or vanes (5) of a blading ring (55). The invention also relates to a blade or vane for a steam turbine.Type: GrantFiled: October 1, 1999Date of Patent: April 10, 2001Assignee: Siemens AktiengesellschaftInventors: Karl-Heinrich Müller, Wilfried Ulm, Ralf Bell, Volker Simon
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Patent number: 5997249Abstract: A turbine, in particular a steam turbine, has a gap between a head region of a first turbine blade and a turbine component. The gap is followed downstream by a limiting surface which is inclined by an acute angle relative to a rotational axis of the turbine and is formed, at least in some regions, by the turbine component. The first turbine blade is followed by a second turbine blade which has a blade region with a radial offset relative to the blade region of the first turbine blade. The turbine component or the head region in the sealing gap additionally or alternatively has an indentation for deflecting a flow of an action fluid in the sealing gap by a circumferential angle in circumferential direction. A turbine blade includes a head region having a circumferential surface substantially perpendicular to a blade axis. The circumferential surface has at least one indentation for flow deflection substantially by a circumferential angle.Type: GrantFiled: July 29, 1998Date of Patent: December 7, 1999Assignee: Siemens AktiengesellschaftInventor: Ralf Bell