Patents by Inventor Daniel Friedl
Daniel Friedl 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: 11916467Abstract: A slip ring system of an electrically excited dynamoelectric machine can be designed to be closed or open and includes a carrier segment configured to include a brush holder which includes a brush pocket for receiving a brush. The brush holder includes means for cooling the brush in the brush holder and/or for cooling the brush holder and has a surface-enlarging structure so as to enable a cooling air flow to be guided within the slip ring system and thereby cool the brush holder and/or brush pocket.Type: GrantFiled: April 3, 2020Date of Patent: February 27, 2024Assignee: Flender GmbHInventors: Herbert Binder, Daniel Friedl, Robert Gruber, Oliver Memminger, Andrej Raskopf, Klaus Schifferer
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Publication number: 20230369941Abstract: An electric machine includes a hollow-cylindrical stator and at least two receiving elements, each receiving element at least partially enclosing the stator in a circumferential direction along an inner coverage length and conjointly connected to the stator in the circumferential direction along an inner fastening length. A stator housing is conjointly connected to the receiving elements in the circumferential direction along the outer fastening length. The inner fastening length extends at most along 120° in the circumferential direction, and the outer fastening length extends at most along 200° in the circumferential direction.Type: ApplicationFiled: November 2, 2021Publication date: November 16, 2023Applicant: Flender GmbHInventors: Daniel Friedl, THOMAS GARHAMMER, ROBERT GRUBER, MESAROS AKOS KECELI, OLIVER MEMMINGER, GÜNTHER ORTMEIER, KLAUS SCHIFFERER, LASLO TOLDI, ANATOLI VOGEL
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Publication number: 20220329136Abstract: A shaft includes a bushing for a current conductor, and a holder for positioning the current conductor. The holder secures the current conductor in or over an inflection point of a curve of the current conductor.Type: ApplicationFiled: July 29, 2020Publication date: October 13, 2022Applicant: Flender GmbHInventors: DANIEL FRIEDL, ROBERT GRUBER, OLIVER MEMMINGER, SASA MIHAJLOVIC, KLAUS SCHIFFERER, TOBIAS SPERL, ANATOLI VOGEL
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Publication number: 20220224204Abstract: A slip ring system of an electrically excited dynamoelectric machine can be designed to be closed or open and includes a carrier segment configured to include a brush holder which includes a brush pocket for receiving a brush. The brush holder includes means for cooling the brush in the brush holder and/or for cooling the brush holder and has a surface-enlarging structure so as to enable a cooling air flow to be guided within the slip ring system and thereby cool the brush holder and/or brush pocket.Type: ApplicationFiled: April 3, 2020Publication date: July 14, 2022Applicant: Flender GmbHInventors: HERBERT BINDER, DANIEL FRIEDL, ROBERT GRUBER, OLIVER MEMMINGER, ANDREJ RASKOPF, KLAUS SCHIFFERER
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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
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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
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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
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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