Patents by Inventor Oliver Memminger
Oliver Memminger 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).
-
Patent number: 10439350Abstract: A contact-making rotary transmission includes a brush forming an electrically conductive sliding contact element and a contact path of electrically conductive material for contact with the brush. The brush is guided and/or held by an arrangement which includes a plurality of carrier segments arranged axially behind one another. Each carrier segment has attached thereto a brush receptacle such as to define a first gap between the carrier segment and the brush receptacle. The brush receptacle includes a stationary receiving shaft which is formed by walls and configured to receive the brush, and a guide element which is provided on a wall of the receiving shaft so as to define a second gap between the brush and the wall. At least one of the walls includes an opening in communication with the first and second gaps to allow a flow of cooling air for cooling the brush.Type: GrantFiled: April 15, 2016Date of Patent: October 8, 2019Assignee: Siemens AktiengesellschaftInventors: Josef Maier, Herbert Binder, Robert Gruber, Martin Krompass, Oliver Memminger, Klaus Schifferer
-
Patent number: 10389074Abstract: A slip ring unit for an electrically excited rotor of a rotary dynamo-electric machine includes an electrical terminal which protrudes axially from an end face of the slip ring unit and having a contact point and a circumferential slip contact surface electrically connected to the electrical terminal. Disposed adjacent to the slip contact surface is an insulation element, with end plates axially retaining the circumferential slip contact surface and the insulation element. An electrically insulated support element is arranged on an end face of the slip ring unit and has a cross section which substantially matches a cross section of the slip ring unit. The support element axially surrounds the electrical terminal and radially supports the electrical terminal.Type: GrantFiled: March 30, 2016Date of Patent: August 20, 2019Assignee: Siemens AktiengesellschaftInventors: Herbert Binder, Oliver Memminger
-
Publication number: 20180372271Abstract: A lubricant collecting device including a lubricant guide and a lubricant container, where the lubricant guide has an outer surface for guiding a first medium and an inner surface for guiding a second medium, and also includes a gap that forms an inlet for the first medium.Type: ApplicationFiled: November 27, 2015Publication date: December 27, 2018Inventors: Georg BRUNNER, Oliver MEMMINGER, Klaus SCHIFFERER
-
Publication number: 20180269739Abstract: An electrical machine includes a first active part and a second active part. Both the first active part and the second active part have a plurality of laminated sub-cores, with each laminated sub-core having a plurality of individual laminations. Each lamination is defined by an axial width. The laminated sub-cores are mutually spaced in an axial direction such that a respective radial cooling slot is formed between two adjacent laminated sub-cores. The radial cooling slots in the first active part are offset in the axial direction in relation to one another in comparison to the radial cooling slots in the second active part, and the sum of the axial widths of all individual laminations in the first active part corresponds to the sum of the axial widths of all individual laminations in the second active part.Type: ApplicationFiled: September 7, 2016Publication date: September 20, 2018Applicant: Siemens AktiengesellschaftInventors: Frank Brasas, ROBERT GRUBER, MARTIN KROMPASS, OLIVER MEMMINGER, KLAUS SCHIFFERER, TOBIAS SPERL, ROLAND ZEICHFÜSSL
-
Publication number: 20180131149Abstract: A slip ring unit for an electrically excited rotor of a rotary dynamo-electric machine includes an electrical terminal which protrudes axially from an end face of the slip ring unit and having a contact point and a circumferential slip contact surface electrically connected to the electrical terminal. Disposed adjacent to the slip contact surface is an insulation element, with end plates axially retaining the circumferential slip contact surface and the insulation element. An electrically insulated support element is arranged on an end face of the slip ring unit and has a cross section which substantially matches a cross section of the slip ring unit. The support element axially surrounds the electrical terminal and radially supports the electrical terminal.Type: ApplicationFiled: March 30, 2016Publication date: May 10, 2018Applicant: Siemens AktiengesellschaftInventors: HERBERT BINDER, OLIVER MEMMINGER
-
Patent number: 9476404Abstract: In a method an inner segment is first pre-assembled on each of a number of outer segments by at least one fixing element, so as to produce a plurality of segment modules having each a predetermined air gap between the inner segment and the outer segment. The inner segments and the outer segments are assigned to the rotor or stator of the electrical machine. The inner segments of the plurality of segment modules are fastened to an inner assembly device (for example a hub). The outer segments of the plurality of segment modules are fastened to an outer assembly device (for example a supporting structure). Finally, the fixing elements between the inner segments and the outer segments are removed.Type: GrantFiled: March 13, 2012Date of Patent: October 25, 2016Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Kornel Feher, Ulrich Hartmann, Martin Junge, Andreas Jöckel, Martin Kristl, Wilfried Luchs, Oliver Memminger, Joachim Mucha, Axel Möhle
-
Patent number: 9225224Abstract: A dynamoelectric machine includes a stator having a laminated core and a winding system, which forms winding heads on end faces of the stator, and a rotor having a laminated core and connected to a shaft in a rotationally fixed manner. The stator and the rotor are arranged in a housing, and the shaft is supported by bearings arranged in bearing shields. The laminated core of the stator and/or rotor has axially extending cooling channels. The bearing shields form with the housing a closed interior having at least one closed inner cooling circuit. The housing has an outer jacket and an inner jacket facing the stator and arranged at a distance from the outer jacket in some sections. The outer jacket and the inner jacket combined form a cooling jacket defined by an axial extension which equals at least the axial extension of the laminated core of the stator.Type: GrantFiled: May 6, 2011Date of Patent: December 29, 2015Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Oliver Memminger, Friedrich Schöberl
-
Patent number: 8686607Abstract: The rotor of an electrical motor should be designed simply and able to be efficiently cooled. To this end, the invention relates to an electrical motor having a rotor that has at least one radial cooling slot (16) and axially running cooling channels. The first cooling channels (18) run having their central axis at a different radial height opposite the axis of the rotor (11) than the second cooling channels (19). A spacer (29) is arranged in the at least one radial cooling slot (16) by means of which a first cooling stream (28) can be conducted from one of the first cooling channels (18) into one of the second cooling channels (19). A second partial package (T2) in the flow direction can also be supplied with cool air in this way if it flows through the first partial package (T1) in a cool region, such as near the shaft.Type: GrantFiled: November 24, 2009Date of Patent: April 1, 2014Assignee: Siemens AktiengesellschaftInventors: Gunther Elender, Oliver Memminger, Norbert Schönbauer, Karl Senninger
-
Patent number: 8648505Abstract: An electrical machine with a stator has a winding support, which has at least one radial cooling slot, and a rotor, which likewise has at least one radial cooling slot. The winding support of the stator has on its outer shell a number of axially running cooling ribs, along which an axially running first cooling flow can be directed. Furthermore, the rotor has axially running first cooling ducts, which open out into its at least one radial cooling slot, so that a second cooling flow can be directed in the axial direction along the axial cooling ribs of the stator through the axial first cooling ducts of the rotor, the at least one radial cooling slot of the rotor, the air gap between the rotor and the stator and the at least one radial cooling slot. In this way, the stator can be cooled by two different cooling flows.Type: GrantFiled: November 24, 2009Date of Patent: February 11, 2014Assignee: Siemens AktiengesellschaftInventors: Oliver Memminger, Friedrich Schöberl, Norbert Schönbauer, Johann Stegner, Robert Danner, Jürgen Draber, Daniel Friedl, Anatoli Vogel
-
Publication number: 20140028138Abstract: In a method an inner segment is first pre-assembled on each of a number of outer segments by at least one fixing element, so as to produce a plurality of segment modules having each a predetermined air gap between the inner segment and the outer segment. The inner segments and the outer segments are assigned to the rotor or stator of the electrical machine. The inner segments of the plurality of segment modules are fastened to an inner assembly device (for example a hub). The outer segments of the plurality of segment modules are fastened to an outer assembly device (for example a supporting structure). Finally, the fixing elements between the inner segments and the outer segments are removed.Type: ApplicationFiled: March 13, 2012Publication date: January 30, 2014Applicant: Siemens AktiengesellschaftInventors: Kornel Feher, Ulrich Hartmann, Martin Junge, Andreas Jöckel, Martin Kristl, Wilfried Luchs, Oliver Memminger, Joachim Mucha, Axel Möhle
-
Patent number: 8624455Abstract: A bearing change in an electrical motor and in particular a generator having permanent magnetic excitation should be able to be carried out safely. To this end, the invention relates to an electrical motor having a shaft (2) on which a rotor is mounted and a bearing unit (5) by means of which the shaft (2) is rotatably mounted. In addition, the electrical motor has a rotor support shield (1) to which the bearing unit (5) is fastened. Furthermore, the rotor support shield (1) is sized so as to be capable of supporting the shaft (2) when the bearing unit (5) is removed and seals a grease chamber (8) of the bearing unit (5) opposite the shaft (2). With the rotor support shield, a permanent magnet-equipped rotor can in particular be prevented from coming into contact with the stator when the bearing is removed.Type: GrantFiled: November 24, 2009Date of Patent: January 7, 2014Assignee: Siemens AktiengesellschaftInventors: Daniel Friedl, Oliver Memminger
-
Publication number: 20130076168Abstract: A dynamoelectric machine includes a stator having a laminated core and a winding system, which forms winding heads on end faces of the stator, and a rotor having a laminated core and connected to a shaft in a rotationally fixed manner. The stator and the rotor are arranged in a housing, and the shaft is supported by bearings arranged in bearing shields. The laminated core of the stator and/or rotor has axially extending cooling channels. The bearing shields form with the housing a closed interior having at least one closed inner cooling circuit. The housing has an outer jacket and an inner jacket facing the stator and arranged at a distance from the outer jacket in some sections. The outer jacket and the inner jacket combined form a cooling jacket defined by an axial extension which equals at least the axial extension of the laminated core of the stator.Type: ApplicationFiled: May 6, 2011Publication date: March 28, 2013Applicant: Siemens AktiengesellschaftInventors: Oliver Memminger, Friedrich Schöberl
-
Publication number: 20120187793Abstract: The invention relates to a rotor (1) of a rotating dynamoelectric machine, comprising permanent magnets (3) which are arranged on the circumference of the rotor base (4), said permanent magnets (3) being positioned and secured by at least one collar (2) which is closed in circumferential direction.Type: ApplicationFiled: September 27, 2010Publication date: July 26, 2012Applicant: Siemens AktiengesellschaftInventors: Ulrich Hartmann, Oliver Memminger, Joachim Mucha, Matthias Tutsch
-
Publication number: 20110278969Abstract: An electrical machine with a stator has a winding support, which has at least one radial cooling slot, and a rotor, which likewise has at least one radial cooling slot. The winding support of the stator has on its outer shell a number of axially running cooling ribs, along which an axially running first cooling flow can be directed. Furthermore, the rotor has axially running first cooling ducts, which open out into its at least one radial cooling slot, so that a second cooling flow can be directed in the axial direction along the axial cooling ribs of the stator through the axial first cooling ducts of the rotor, the at least one radial cooling slot of the rotor, the air gap between the rotor and the stator and the at least one radial cooling slot. In this way, the stator can be cooled by two different cooling flows.Type: ApplicationFiled: November 24, 2009Publication date: November 17, 2011Applicant: Siemens AktiengesellschaftInventors: Oliver Memminger, Friedrich Schöberl, Norbert Schönbauer, Johann Stegner, Robert Danner, Jürgen Draber, Daniel Friedl, Anatoli Vogel
-
Publication number: 20110254391Abstract: The rotor of an electrical motor should be designed simply and able to be efficiently cooled. To this end, the invention relates to an electrical motor having a rotor that has at least one radial cooling slot (16) and axially running cooling channels. The first cooling channels (18) run having their central axis at a different radial height opposite the axis of the rotor (11) than the second cooling channels (19). A spacer (29) is arranged in the at least one radial cooling slot (16) by means of which a first cooling stream (28) can be conducted from one of the first cooling channels (18) into one of the second cooling channels (19). A second partial package (T2) in the flow direction can also be supplied with cool air in this way if it flows through the first partial package (T1) in a cool region, such as near the shaft.Type: ApplicationFiled: November 24, 2009Publication date: October 20, 2011Applicant: Siemens AktiengesellschaftInventors: Gunther Elender, Oliver Memminger, Norbert Schonbauer, Karl Senninger
-
Publication number: 20110254395Abstract: A bearing change in an electrical motor and in particular a generator having permanent magnetic excitation should be able to be carried out safely. To this end, the invention relates to an electrical motor having a shaft (2) on which a rotor is mounted and a bearing unit (5) by means of which the shaft (2) is rotatably mounted. In addition, the electrical motor has a rotor support shield (1) to which the bearing unit (5) is fastened. Furthermore, the rotor support shield (1) is sized so as to be capable of supporting the shaft (2) when the bearing unit (5) is removed and seals a grease chamber (8) of the bearing unit (5) opposite the shaft (2). With the rotor support shield, a permanent magnet-equipped rotor can in particular be prevented from coming into contact with the stator when the bearing is removed.Type: ApplicationFiled: November 24, 2009Publication date: October 20, 2011Applicant: Siemens AktiengesellschaftInventors: Daniel Friedl, Oliver Memminger