Patents by Inventor Dirk Springborn
Dirk Springborn 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: 11319823Abstract: A sealing element and a rotor of a gas turbine having at least one rotor disc and having an annular rotor component arranged adjacently to the rotor disc and having a plurality of sealing elements arranged distributed around the circumference. The sealing elements are fastened to the rotor disc at least in the axial direction. An inner edge portion of each of the sealing elements is adjacent to a sealing portion of the rotor component. In order to provide a seal between the sealing element and rotor component whilst at the same time enabling a relative axial displacement, a ring seal is arranged in a receiving space formed by the sealing element and rotor component.Type: GrantFiled: January 7, 2019Date of Patent: May 3, 2022Assignee: Siemens Energy Global GmbH & Co. KGInventors: Peter Schroder, Karsten Kolk, Peter Kury, Dirk Springborn, Kevin Kampka, Christopher W. Ross, Yulia Bagaeva
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Publication number: 20200392857Abstract: A sealing element and a rotor of a gas turbine having at least one rotor disc and having an annular rotor component arranged adjacently to the rotor disc and having a plurality of sealing elements arranged distributed around the circumference. The sealing elements are fastened to the rotor disc at least in the axial direction. An inner edge portion of each of the sealing elements is adjacent to a sealing portion of the rotor component. In order to provide a seal between the sealing element and rotor component whilst at the same time enabling a relative axial displacement, a ring seal is arranged in a receiving space formed by the sealing element and rotor component.Type: ApplicationFiled: January 7, 2019Publication date: December 17, 2020Applicant: Siemens AktiengesellschaftInventors: Peter Schroder, Karsten Kolk, Peter Kury, Dirk Springborn, Kevin Kampka, Christopher W. Ross, Yulia Bagaeva
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Publication number: 20200291798Abstract: A rotor disk assembly having a two-part seal, wherein the rotor disk assembly has a rotor disk, on which a plurality of sealing plates is arranged in front of an end side and wherein a plurality of separate sealing vanes is arranged radially outside of the sealing plates in a circumferentially distributed manner.Type: ApplicationFiled: March 22, 2017Publication date: September 17, 2020Applicant: Siemens AktiengesellschaftInventors: Peter Schröder, Dirk Springborn
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Patent number: 10755838Abstract: A tensioning device is provided for a surge arrester having an end fitting and tensioner. The tensioning device has an axial clearance for receiving a tensioner and a region being conically tapered in axial direction to be introduced into a clearance of the end fitting being shaped for a substantially exact fit. The conically tapered region has delimitation walls defining the axial clearance for the tensioner being movable toward a clearance interior. An antifriction layer is applied to the surface of the conically tapered region. A production method for a surge arrester and a corresponding surge arrester are also provided.Type: GrantFiled: September 27, 2017Date of Patent: August 25, 2020Assignee: Siemens AktiengesellschaftInventors: Bernd Kruska, Dirk Springborn, Kai Steinfeld
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Patent number: 10422225Abstract: An annular clamping nut which is provided for being placed onto the end of a tie bar, in order to brace the latter, and which has in addition to a central recess for receiving the tie bar parallel to a longitudinal direction passages at uniform radial spacings in the ring circumferential direction which are directed parallel to the longitudinal direction of the central recess and are provided for receiving clamping screws. An external thread is provided on the outer surface of the clamping nut, which outer surface is arranged on a side which lies substantially opposite the wall of the central recess, which external thread runs substantially in the ring circumferential direction of the outer surface.Type: GrantFiled: May 11, 2015Date of Patent: September 24, 2019Assignee: Nord-Lock Switzerland GmbHInventors: Daniel Hofsommer, Karsten Kolk, Peter Kury, Matthias Richter, Michael Schulz, Dirk Springborn
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Patent number: 10196916Abstract: A rotor disk arrangement having a rotor disk which has, distributed around the outer circumference, a plurality of axially extending blade holding grooves and an encircling fastening protrusion and/or a plurality of fastening protrusions arranged in a circumferentially distributed manner, and having a plurality of sealing elements arranged in a circumferentially distributed manner, the sealing elements covering the blade holding grooves at least in portions on the end side and having, on the side facing the rotor axis, at least one fastening portion that bears against the underside of the fastening protrusion, wherein the fastening protrusion is embodied in an undercut manner, wherein the distance thereof from the rotor axis at the free end facing away from the rotor disk is less than in a region within the fastening protrusion.Type: GrantFiled: April 8, 2016Date of Patent: February 5, 2019Assignee: Siemens AktiengesellschaftInventors: Roger Matthews, Karsten Kolk, Peter Schröder, Dirk Springborn, Vyacheslav Veitsman
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Publication number: 20180090246Abstract: A tensioning device is provided for a surge arrester having an end fitting and tensioner. The tensioning device has an axial clearance for receiving a tensioner and a region being conically tapered in axial direction to be introduced into a clearance of the end fitting being shaped for a substantially exact fit. The conically tapered region has delimitation walls defining the axial clearance for the tensioner being movable toward a clearance interior. An antifriction layer is applied to the surface of the conically tapered region. A production method for a surge arrester and a corresponding surge arrester are also provided.Type: ApplicationFiled: September 27, 2017Publication date: March 29, 2018Inventors: BERND KRUSKA, DIRK SPRINGBORN, KAI STEINFELD
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Patent number: 9861009Abstract: A valve-type arrester includes a heat sink for dissipating heat from the interior of the valve-type arrester into the surroundings of the valve-type arrester. The heat sink has a circular-cylindrical main body with a base surface, a top surface parallel to the base surface and a casing surface connecting the base surface and the top surface. The heat sink additionally has a plurality of fins disposed on the main body, in which each fin is formed in the shape of a sheet or a leaf and disposed on the casing surface of the main body.Type: GrantFiled: June 25, 2013Date of Patent: January 2, 2018Assignee: Siemens AktiengesellschaftInventors: Erhard Pippert, Guenter Sachs, Dirk Springborn, Markus Sulitze
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Patent number: 9793701Abstract: A surge arrester, in particular for arresting surges, includes a housing and a disconnecting device. The housing is divided into at least two housing parts, and the disconnecting device connects the housing parts to one another.Type: GrantFiled: June 20, 2013Date of Patent: October 17, 2017Assignee: Siemens AktiengesellschaftInventors: Dirk Springborn, Markus Sulitze
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Publication number: 20170292396Abstract: A rotor disk arrangement having a rotor disk which has, distributed around the outer circumference, a plurality of axially extending blade holding grooves and an encircling fastening protrusion and/or a plurality of fastening protrusions arranged in a circumferentially distributed manner, and having a plurality of sealing elements arranged in a circumferentially distributed manner, the sealing elements covering the blade holding grooves at least in portions on the end side and having, on the side facing the rotor axis, at least one fastening portion that bears against the underside of the fastening protrusion, wherein the fastening protrusion is embodied in an undercut manner, wherein the distance thereof from the rotor axis at the free end facing away from the rotor disk is less than in a region within the fastening protrusion.Type: ApplicationFiled: April 8, 2016Publication date: October 12, 2017Applicant: Siemens AktiengesellschaftInventors: Roger Matthews, Karsten Kolk, Peter Schröder, Dirk Springborn, Vyacheslav Veitsman
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Patent number: 9728308Abstract: A surge arrester has several tensioning elements which brace the discharge column in the axial direction. One or more loop arrangements radially surround the tensioning elements. One loop arrangement has a plurality of loops. Each loop of the plurality of loops surrounds only some, but not all, of the tensioning elements.Type: GrantFiled: June 12, 2013Date of Patent: August 8, 2017Assignee: Siemens AktiengesellschaftInventors: Dirk Springborn, Markus Sulitze
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Publication number: 20170051611Abstract: An annular clamping nut which is provided for being placed onto the end of a tie bar, in order to brace the latter, and which has in addition to a central recess for receiving the tie bar parallel to a longitudinal direction passages at uniform radial spacings in the ring circumferential direction which are directed parallel to the longitudinal direction of the central recess and are provided for receiving clamping screws. An external thread is provided on the outer surface of the clamping nut, which outer surface is arranged on a side which lies substantially opposite the wall of the central recess, which external thread runs substantially in the ring circumferential direction of the outer surface.Type: ApplicationFiled: May 11, 2015Publication date: February 23, 2017Applicant: Siemens AktiengesellschaftInventors: Daniel Hofsommer, Karsten Kolk, Peter Kury, Matthias Richter, Michael Schulz, Dirk Springborn
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Publication number: 20160195110Abstract: A rotor for a thermal turbomachine, in particular a gas turbine, designed to conduct a medium, such as compressor air, in the interior of the rotor. In order to conduct the medium in the interior with low flow losses and at the same time to specify a rotor that can be produced comparatively simply and economically, a separately produced blade wheel is arranged between the mutually adjacent hub regions of the two rotor disks, and a sleeve is provided for fastening the blade wheel to one of the two rotor disks, which sleeve extends through the central opening of the one rotor disk and includes a collar serving as a stop at a first end of the sleeve and includes a second end opposite the first end, on which second end the blade wheel is fastened.Type: ApplicationFiled: June 16, 2014Publication date: July 7, 2016Applicant: Siemens AktiengesellschaftInventors: Karsten Kolk, Peter Schröder, Dirk Springborn, Vyacheslav VEITSMAN
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Patent number: 9318892Abstract: A surge arrester includes at least one resistor element and a cage in which the at least one resistor element is disposed. The cage includes an upper holder, a lower holder and at least three insulating rods, which are each held at one respective rod end thereof by the upper holder and at the other respective rod end thereof by the lower holder. The upper holder and the lower holder are configured in such a way that they each enable at least two different positions for at least one of the insulating rods, relative to the two holders, and the at least one insulating rod can be positioned differently relative to the two holders.Type: GrantFiled: June 15, 2012Date of Patent: April 19, 2016Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Ingo Gottschalk, Erhard Pippert, Dirk Springborn, Markus Sulitze
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Patent number: 9306385Abstract: A surge arrester has a tube-shaped housing, an end fitting connected to an end of the housing, a varistor block arranged in the housing and a supporting element arranged in the region of the end fitting. The supporting element has a supporting ring which is in contact with the housing and which includes a cone and a clamping ring with a counter-cone that corresponds to the cone. The cone is braced to the counter-cone in such a manner that the supporting ring is pressed to the housing in a non-displaceable manner. The supporting element can thus also be used after the installation of the varistor block and also be removed.Type: GrantFiled: November 9, 2012Date of Patent: April 5, 2016Assignee: Siemens AktiengesellschaftInventors: Ingo Gottschalk, Erhard Pippert, Dirk Springborn, Markus Sulitze
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Patent number: 9225165Abstract: A surge arrester has a collar for fixing tensioning elements. The collar is extendable and is capable of absorbing released energy in the event of a fault and holding together the cage containing the tensioning elements. The collar, which fixes the tensioning elements in the radial direction, is positioned around the cage of the surge arrester formed from the tensioning elements. The form of the collar is such that it has defined deformation regions, with the result that the collar can expand and thus widen in the event of a force effect in the radial direction. If the varistor elements expand in the manner of an explosion during an overload, the collar is expanded and absorbs some of the released energy. This ensures that the cage is held together in the event of an overload and thus no fragments of the varistor elements can be flung out of the cage.Type: GrantFiled: November 7, 2011Date of Patent: December 29, 2015Assignee: Siemens AktiengesellschaftInventors: Erhard Pippert, Dirk Springborn, Markus Sulitze
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Publication number: 20150244162Abstract: A surge arrester, in particular for arresting surges, includes a housing and a disconnecting device. The housing is divided into at least two housing parts, and the disconnecting device connects the housing parts to one another.Type: ApplicationFiled: June 20, 2013Publication date: August 27, 2015Inventors: Dirk Springborn, Markus Sulitze
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Publication number: 20150223368Abstract: A valve-type arrester includes a heat sink for dissipating heat from the interior of the valve-type arrester into the surroundings of the valve-type arrester. The heat sink has a circular-cylindrical main body with a base surface, a top surface parallel to the base surface and a casing surface connecting the base surface and the top surface. The heat sink additionally has a plurality of fins disposed on the main body, in which each fin is formed in the shape of a sheet or a leaf and disposed on the casing surface of the main body.Type: ApplicationFiled: June 25, 2013Publication date: August 6, 2015Inventors: Erhard Pippert, Guenter Sachs, Dirk Springborn, Markus Sulitze
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Publication number: 20150213925Abstract: A surge arrester has several tensioning elements which brace the discharge column in the axial direction. One or more loop arrangements radially surround the tensioning elements. One loop arrangement has a plurality of loops. Each loop of the plurality of loops surrounds only some, but not all, of the tensioning elements.Type: ApplicationFiled: June 12, 2013Publication date: July 30, 2015Inventors: Dirk Springborn, Markus Sulitze
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Publication number: 20140368962Abstract: A surge arrester has a tube-shaped housing, an end fitting connected to an end of the housing, a varistor block arranged in the housing and a supporting element arranged in the region of the end fitting. The supporting element has a supporting ring which is in contact with the housing and which includes a cone and a clamping ring with a counter-cone that corresponds to the cone. The cone is braced to the counter-cone in such a manner that the supporting ring is pressed to the housing in a non-displaceable manner. The supporting element can thus also be used after the installation of the varistor block and also be removed.Type: ApplicationFiled: November 9, 2012Publication date: December 18, 2014Inventors: Ingo Gottschalk, Erhard Pippert, Dirk Springborn, Markus Sulitze