Patents by Inventor Konrad Brandl
Konrad Brandl 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).
-
Publication number: 20220399790Abstract: A cage rotor of an asynchronous machine includes a magnetically conductive body having substantially axially running slots with conductors connected to end faces of the magnetically conductive body in an electrically conductive manner by short circuit rings. The short circuit rings have an outer side, an inner side, a front side, and a rear side. A supporting element made of a high-strength material is located at least radially within the short circuit rings, i.e. on the inner face, with the supporting element being connected to the short-circuit ring, at least in one section, with a material fit.Type: ApplicationFiled: November 4, 2020Publication date: December 15, 2022Applicant: Siemens AktiengesellschaftInventors: CHRISTIAN BAUER, KONRAD BRANDL, MARKUS KLÖPZIG, KLAUS SCHLEICHER
-
Patent number: 11394279Abstract: The invention relates to a squirrel-cage rotor of an asynchronous machine (1), comprising conductors (9) in grooves (12) of a magnetic field-conducting rotor, and electrically conducting rotor end rings (6) which are located in the region of the end faces of the magnetic field-conducting rotor, electrically connect the conductors (9) and have at least two materials that conduct electricity differently.Type: GrantFiled: March 13, 2018Date of Patent: July 19, 2022Assignee: Siemens AktiengesellschaftInventors: Konrad Brandl, Johannes Grosshauser, Maximilian Pfaller, Uwe Scharf, André Trepper
-
Patent number: 11171551Abstract: A rotor for an electric machine includes a laminated core and a groove which extend in axial direction from a first axial end to a second axial end along a rotation axis. The groove has a groove filling having a first material with a metal element of the periodic table. The groove filling has a cast metal region, which extends with an end region at the first axial end at least partially over the laminated core. The cast metal region extends through the groove from the first axial end to the second axial end, and fills up a first part of the groove with a first material. An insert fills up a second part of the groove with a second material which has the metal element of the periodic table. The insert part and the cast metal region are connected in a bonded manner by a connection zone.Type: GrantFiled: November 6, 2014Date of Patent: November 9, 2021Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Maximilian Pfaller, Konrad Brandl, André Trepper
-
Patent number: 11018548Abstract: The invention relates to an electrical machine (1) comprising a rotor (4) which is rotatably mounted around a rotation axis (5) extending in the axial direction (3) in bearing devices (16, 17), a stator (7) having two axial ends, an air gap between rotor and stator, an interior chamber (10) encompassing the stator (7) and rotor (4), a sleeve (11) encompassing a first part (111) which encloses the interior chamber (10), a frame (12) having a first (123) and a second (121) longitudinal support (123), a first (122) and a second (124) cross-support, and a dividing device (2) on the frame (12). The stator (7) comprises a fastening device (15) for connection to the frame (12) and the dividing device (2) can make the interior chamber accessible from the outside in a plane parallel to the frame (12). The invention further relates to a collection, to a frame (12), to a sleeve (11), or to a service or production method of such an electrical machine (1).Type: GrantFiled: February 17, 2014Date of Patent: May 25, 2021Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Konrad Brandl, Christian Deeg, Gerhard Dorr, Benjamin Eichinger, Wolfgang Johann Greul, Jürgen Hofmann, Eric Joseph, Ekkehard Ressel, Uwe Scharf, Mathias Scherer, Sebastian Weiss, Ulrich Werner, Michael Stegherr
-
Publication number: 20210036587Abstract: The invention relates to a squirrel-cage rotor of an asynchronous machine (1), comprising conductors (9) in grooves (12) of a magnetic field-conducting rotor, and electrically conducting rotor end rings (6) which are located in the region of the end faces of the magnetic field-conducting rotor, electrically connect the conductors (9) and have at least two materials that conduct electricity differently,Type: ApplicationFiled: March 13, 2018Publication date: February 4, 2021Applicant: Siemens AktiengesellschaftInventors: Konrad Brandl, JOHANNES GROSSHAUSER, MAXIMILIAN PFALLER, UWE SCHARF, ANDRÉ TREPPER
-
Patent number: 10476361Abstract: A cage rotor for an electric machine, has a laminated rotor core having a groove, a rotor end ring that is cast on to one axial end of the laminated core and has a first material and a bar situated in the groove and supported by a deformable bearing having a bearing device. A laminated rotor core for a cage rotor includes a groove and a bearing device, an electric machine with a cage rotor, a method for producing a laminated rotor core by producing a bearing device on the laminated rotor core, and a method for producing a cage rotor by supporting a bar in a groove by a deformable bearing having a bearing device.Type: GrantFiled: October 10, 2013Date of Patent: November 12, 2019Assignee: Siemens AktiengesellschaftInventors: Konrad Brandl, Siegfried Fichtner, Maximilian Pfaller, Patryk Piotrowski, André Trepper
-
Patent number: 10033254Abstract: A cage rotor for an electrical machine includes a rotor laminated core having a groove, and a short-circuiting ring having a first material and cast onto an axial end of the rotor laminated core. Arranged in the groove is a bar which has a bar end. The bar end penetrates into the first material of the short-circuiting ring and has a plurality of notches to provide the bar end with a greater flexibility.Type: GrantFiled: October 17, 2013Date of Patent: July 24, 2018Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Konrad Brandl, Maximilian Pfaller, Patryk Piotrowski, Andre Trepper, Christian Deeg, Siegfried Fichtner
-
Publication number: 20170012487Abstract: The invention relates to an electrical machine (1) comprising a rotor (4) which is rotatably mounted around a rotation axis (5) extending in the axial direction (3) in bearing devices (16, 17), a stator (7) having two axial ends, an air gap between rotor and stator, an interior chamber (10) encompassing the stator (7) and rotor (4), a sleeve (11) encompassing a first part (111) which encloses the interior chamber (10), a frame (12) having a first (123) and a second (121) longitudinal support (123), a first (122) and a second (124) cross-support, and a dividing device (2) on the frame (12). The stator (7) comprises a fastening device (15) for connection to the frame (12) and the dividing device (2) can make the interior chamber accessible from the outside in a plane parallel to the frame (12). The invention further relates to a collection, to a frame (12), to a sleeve (11), or to a service or production method of such an electrical machine (1).Type: ApplicationFiled: February 17, 2014Publication date: January 12, 2017Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: KONRAD BRANDL, CHRISTIAN DEEG, GERHARD DORR, BENJAMIN EICHINGER, WOLFGANG JOHANN GREUL, JÜRGEN HOFMANN, ERIC JOSEPH, EKKEHARD RESSEL, UWE SCHARF, MATHIAS SCHERER, SEBASTIAN WEISS, ULRICH WERNER, MICHAEL STEGHERR
-
Publication number: 20160294264Abstract: A rotor for an electric machine includes a laminated core and a groove which extend in axial direction from a first axial end to a second axial end along a rotation axis. The groove has a groove filling having a first material with a metal element of the periodic table. The groove filling has a cast metal region, which extends with an end region at the first axial end at least partially over the laminated core. The cast metal region extends through the groove from the first axial end to the second axial end, and fills up a first part of the groove with a first material. An insert fills up a second part of the groove with a second material which has the metal element of the periodic table. The insert part and the cast metal region are connected in a bonded manner by a connection zone.Type: ApplicationFiled: November 6, 2014Publication date: October 6, 2016Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: MAXIMILIAN PFALLER, Konrad Brandl, André Trepper
-
Patent number: 9431878Abstract: An electric machine has a base body with a stator, a rotor shaft mounted in the base body, and a heat exchanger. Cooling ducts for a liquid cooling medium are arranged in the base body. The rotor shaft is embodied as a hollow shaft through which the liquid cooling medium can flow. The heat exchanger dissipates heat contained in the liquid cooling medium to the surroundings of the electric machine. The heat exchanger, the rotor shaft and the cooling ducts are fluidically connected in series, producing a closed circuit for the liquid medium. A feed element is arranged to co-rotate with the rotor shaft. The feed element is inserted in the closed circuit for the liquid cooling medium to forcibly circulate the liquid cooling medium in the closed circuit as the rotor shaft for the liquid cooling medium rotates.Type: GrantFiled: December 13, 2011Date of Patent: August 30, 2016Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Konrad Brandl, Vladimir Danov, Klaus Dennerlein, Bernd Gromoll, Jürgen Hofmann, Patryk Piotrowski, Andreas Schröter
-
Publication number: 20150303781Abstract: A cage rotor for an electrical machine includes a rotor laminated core having a groove, and a short-circuiting ring having a first material and cast onto an axial end of the rotor laminated core. Arranged in the groove is a bar which has a bar end. The bar end penetrates into the first material of the short-circuiting ring and has a plurality of notches to provide the bar end with a greater flexibility.Type: ApplicationFiled: October 17, 2013Publication date: October 22, 2015Applicant: Siemens AktiengesellschaftInventors: Konrad Brandl, Maximilian Pfaller, Patryk Piotrowski, Andre Trepper, Christian Deeg, Siegfried Fichtner
-
Publication number: 20150295483Abstract: A cage rotor for an electric machine has a laminated rotor core having a groove, a rotor end ring that is cast on to one axial end of the laminated core and has a first material and a bar situated in the groove and supported by a deformable bearing having a bearing device. A laminated rotor core for a cage rotor includes a groove and a bearing device, an electric machine with a cage rotor, a method for producing a laminated rotor core by producing a bearing device on the laminated rotor core, and a method for producing a cage rotor by supporting a bar in a groove by a deformable bearing having a bearing device.Type: ApplicationFiled: October 10, 2013Publication date: October 15, 2015Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Konrad Brandl, Siegfried Fichtner, Maxmillian Pfaller, Patryk Piotrowski, André Trepper
-
Publication number: 20130270939Abstract: An electric machine has a base body with a stator, a rotor shaft mounted in the base body, and a heat exchanger. Cooling ducts for a liquid cooling medium are arranged in the base body. The rotor shaft is embodied as a hollow shaft through which the liquid cooling medium can flow. The heat exchanger dissipates heat contained in the liquid cooling medium to the surroundings of the electric machine. The heat exchanger, the rotor shaft and the cooling ducts are fluidically connected in series, producing a closed circuit for the liquid medium. A feed element is arranged to co-rotate with the rotor shaft. The feed element is inserted in the closed circuit for the liquid cooling medium to forcibly circulate the liquid cooling medium in the closed circuit as the rotor shaft for the liquid cooling medium rotates.Type: ApplicationFiled: December 13, 2011Publication date: October 17, 2013Applicant: Siemens AktiengesellschaftInventors: Konrad Brandl, Vladimir Danov, Klaus Dennerlein, Bernd Gromoll, Jürgen Hofmann, Patryk Piotrowski, Andreas Schröter
-
Patent number: 8519580Abstract: An electric machine has a stator and a rotor arranged on a rotor shaft for rotation about a shaft axis, wherein the shaft axis defines an axial, a radial and a tangential direction. The rotor has at least one continuous axial rotor channel. The stator has a lamination stack extending over the rotor viewed in the axial direction. The lamination stack completely surrounds the rotor, forming a closed inner rotor chamber and has at least one axial stator channel running continuously in the axial direction and that is completely closed when viewed on the sectional plane. The electric machine has covers which are designed to form in conjunction with the lamination stack at least one radial channel running in the radial direction. The radial channels connect the axial stator channel(s) to the inner rotor chamber by means of a fluid connection but are otherwise closed.Type: GrantFiled: July 14, 2009Date of Patent: August 27, 2013Assignee: Siemens AktiengesellschaftInventors: Konrad Brandl, Reiner Grillenberger, Sebastian Weiss, Ilkka Af Ursin
-
Publication number: 20110140550Abstract: An electric machine has a stator (1) and a rotor shaft (3). The rotor shaft (3) is rotatably mounted about a shaft axis (5) in relation to the stator (1), said axis (5) defining an axial direction, a radial direction and a tangential direction. A rotor (6), which is in electrical co-operation with the stator (1), is arranged on the rotor shaft (3). The rotor (6) has at least one continuous axial rotor channel (8). The stator (1) has a lamination stack (10) that extends over the rotor (6) when viewed in the axial direction. The lamination stack (10) completely surrounds the rotor (6) when viewed on a sectional plane that is orthogonal to the axial direction, forming a closed inner rotor chamber (11) when viewed on the sectional plane. A respective cover (14) is provided on both axial sides of the lamination stack (10). At least one of the covers (14) has a central cavity (15) to allow the passage of the rotor shaft (3).Type: ApplicationFiled: July 14, 2009Publication date: June 16, 2011Inventors: Konrad Brandl, Reiner Grillenberger, Sebastian Weiss, Ilkka Af Ursin