Patents by Inventor Bernd Pfannschmidt
Bernd Pfannschmidt 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: 11623666Abstract: A drive includes at least one motor with a drive shaft and at least one output shaft which is in particular mechanically connected to a gear. The drive shaft and the output shaft are aligned substantially axially. The drive shaft and the output shaft each have a coupling portion through which a torque can be transmitted from the drive shaft to the output shaft by mechanical coupling. Each coupling portion is connected to the shaft thereof for rotation therewith and the coupling portions can be mechanically coupled by being axially plugged together.Type: GrantFiled: August 22, 2018Date of Patent: April 11, 2023Assignee: Siemens Mobility GmbHInventors: Freerk Jacobus Oude Kotte, Bernd Pfannschmidt
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Patent number: 11046337Abstract: A double axle drive includes at least one driving motor arranged between two drive axles, wherein the axis of rotation thereof extends transversely, in particular perpendicularly to the drive axles, where a wheel set shaft is drivable via a drive shaft of the driving motor via each transmission, and where the entire double axel drive is arranged in a housing unit that includes two housing parts.Type: GrantFiled: January 11, 2017Date of Patent: June 29, 2021Assignee: SIEMENS MOBILITY GMBHInventor: Bernd Pfannschmidt
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Publication number: 20210194303Abstract: A rotor of a permanent-magnet dynamoelectric rotary machine includes a pot-type support unit that has at least one cylindrical wall, permanent magnets that are arranged on the outer periphery of the wall of the support unit, and substantially axially extending cooling ducts provided within the wall.Type: ApplicationFiled: January 26, 2017Publication date: June 24, 2021Inventors: Bernd PFANNSCHMIDT, Tobias STAERZ, Wolfgang WETZEL
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Patent number: 10780902Abstract: A drive of a rail vehicle includes two drive wheels and a wheel set shaft which connects the drive wheels for rotation about an axis. A dynamoelectric machine includes a shaft extending axially parallel to the wheel set shaft and mounted for rotation about a further axis. A transmission connects the shaft of the dynamoelectric machine and the wheel set shaft by a non-positive fit. Placed between the dynamoelectric machine and the transmission is a coupling which is configured for direct attachment of a brake disk of a braking apparatus which is arranged between the transmission and the dynamoelectric machine.Type: GrantFiled: November 4, 2015Date of Patent: September 22, 2020Assignee: SIEMENS MOBILITY GMBHInventors: Manfred Hannes, Bernd Pfannschmidt
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Publication number: 20200269883Abstract: A drive includes at least one motor with a drive shaft and at least one output shaft which is in particular mechanically connected to a gear. The drive shaft and the output shaft are aligned substantially axially. The drive shaft and the output shaft each have a coupling portion through which a torque can be transmitted from the drive shaft to the output shaft by mechanical coupling. Each coupling portion is connected to the shaft thereof for rotation therewith and the coupling portions can be mechanically coupled by being axially plugged together.Type: ApplicationFiled: August 22, 2018Publication date: August 27, 2020Inventors: FREERK JACOBUS OUDE KOTTE, BERND PFANNSCHMIDT
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Publication number: 20190031212Abstract: A double axle drive includes at least one driving motor arranged between two drive axles, wherein the axis of rotation thereof extends transversely, in particular perpendicularly to the drive axles, where a wheel set shaft is drivable via a drive shaft of the driving motor via each transmission, and where the entire double axel drive is arranged in a housing unit that includes two housing parts.Type: ApplicationFiled: January 11, 2017Publication date: January 31, 2019Applicant: Siemens AktiengesellschaftInventor: Bernd PFANNSCHMIDT
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Publication number: 20180297617Abstract: A drive of a rail vehicle includes two drive wheels and a wheel set shaft which connects the drive wheels for rotation about an axis. A dynamoelectric machine includes a shaft extending axially parallel to the wheel set shaft and mounted for rotation about a further axis. A transmission connects the shaft of the dynamoelectric machine and the wheel set shaft by a non-positive fit. Placed between the dynamoelectric machine and the transmission is a coupling which is configured for direct attachment of a brake disk of a braking apparatus which is arranged between the transmission and the dynamoelectric machine.Type: ApplicationFiled: November 4, 2015Publication date: October 18, 2018Applicant: Siemens AktiengesellschaftInventors: Manfred HANNES, Bernd PFANNSCHMIDT
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Patent number: 10099707Abstract: A bogie (6) comprises a bogie frame (7). The bogie frame (7) is mounted on bearings (7b) via a first spring device (7a). A wheelset shaft (8) is mounted in the bearings (7b). A wheelset drive (9) concentrically surrounds the wheelset shaft (8) and acts thereupon. The wheelset drive (9) is spring-mounted on the bearings (7b) by means of a second spring device (16) exclusively associated with the wheelset drive (9). A two-level clutch (15) is arranged between the wheelset drive (9) and the wheelset shaft (8).Type: GrantFiled: December 10, 2014Date of Patent: October 16, 2018Assignee: Siemens AktiengesellschaftInventors: Olaf Koerner, Hartmut Frank, Thomas Liebig, Thomas Oehler, Bernd Pfannschmidt, Tobias Stärz
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Patent number: 9866086Abstract: An electric machine has a stator and a rotor. The rotor is arranged on a rotor shaft that can be rotated about an axis of rotation. The stator surrounds the rotor radially on the outside with respect to the axis of rotation. The stator is surrounded radially on the outside by a one-piece housing with respect to the axis of rotation. As viewed around the axis of rotation, the housing extends only over a partial angular range. As viewed around the axis of rotation, a remaining angular range, in which the stator is not surrounded by the housing, thus remains. In end regions located at the ends of the partial angular range, the housing has housing-side form-closure elements, which cause a form closure of the housing with the stator in interaction with stator-side form-closure elements.Type: GrantFiled: March 20, 2014Date of Patent: January 9, 2018Assignee: SIEMENS AKTIENGESELLSCHAFTInventor: Bernd Pfannschmidt
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Publication number: 20160325762Abstract: A bogie (6) comprises a bogie frame (7). The bogie frame (7) is mounted on bearings (7b) via a first spring device (7a). A wheelset shaft (8) is mounted in the bearings (7b). A wheelset drive (9) concentrically surrounds the wheelset shaft (8) and acts thereupon. The wheelset drive (9) is spring-mounted on the bearings (7b) by means of a second spring device (16) exclusively associated with the wheelset drive (9). A two-level clutch (15) is arranged between the wheelset drive (9) and the wheelset shaft (8).Type: ApplicationFiled: December 10, 2014Publication date: November 10, 2016Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: OLAF KOERNER, HARTMUT FRANK, THOMAS LIEBIG, THOMAS OEHLER, BERND PFANNSCHMIDT, TOBIAS STÄRZ
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Publication number: 20160072354Abstract: An electric machine has a stator and a rotor. The rotor is arranged on a rotor shaft that can be rotated about an axis of rotation. The stator surrounds the rotor radially on the outside with respect to the axis of rotation. The stator is surrounded radially on the outside by a one-piece housing with respect to the axis of rotation. As viewed around the axis of rotation, the housing extends only over a partial angular range. As viewed around the axis of rotation, a remaining angular range, in which the stator is not surrounded by the housing, thus remains. In end regions located at the ends of the partial angular range, the housing has housing-side form-closure elements, which cause a form closure of the housing with the stator in interaction with stator-side form-closure elements.Type: ApplicationFiled: March 20, 2014Publication date: March 10, 2016Applicant: SIEMENS AKTIENGESELLSCHAFTInventor: BERND PFANNSCHMIDT
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Patent number: 9109631Abstract: A slip coupling includes two coupling elements and a clamping nut screwed onto one coupling element to press the other coupling element against the one coupling element so that a torque acting on one coupling element is transmitted slip-free to the other coupling element and limited to a sliding torque as the coupling elements slip against one another. Free play disks are disposed between the clamping nut and the other coupling element. Interacting driver elements received by the clamping nut, the free play disks and the other coupling element enable the coupling elements to slip against one another up to a critical angle without rotation of the clamping nut. When clamping nut is caused to rotate, a contact pressure of the other coupling element on the one coupling element and thereby a holding torque transmittable in a slip-free manner is changed.Type: GrantFiled: October 23, 2012Date of Patent: August 18, 2015Assignee: SIEMENS AGInventor: Bernd Pfannschmidt
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Publication number: 20140299435Abstract: A slip coupling includes two coupling elements and a clamping nut screwed onto one coupling element to press the other coupling element against the one coupling element so that a torque acting on one coupling element is transmitted slip-free to the other coupling element and limited to a sliding torque as the coupling elements slip against one another. Free play disks are disposed between the clamping nut and the other coupling element. Interacting driver elements received by the clamping nut, the free play disks and the other coupling element enable the coupling elements to slip against one another up to a critical angle without rotation of the clamping nut. When clamping nut is caused to rotate, a contact pressure of the other coupling element on the one coupling element and thereby a holding torque transmittable in a slip-free manner is changed.Type: ApplicationFiled: October 23, 2012Publication date: October 9, 2014Inventor: Bernd Pfannschmidt
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Patent number: 7812486Abstract: The invention relates to a direct electrical drive (1) for a wheel set (30) of a vehicle, wherein the direct electrical drive (1) comprises a stator (7) and a rotor (3), with the rotor (3) being coupled mechanically with a wheel set shaft (11). The rotor (3) includes a cooling device. The cooling device includes cooling channels (22), an air inlet (37) and at least one fan (9), whereby the cooling channels (22) extend inside the rotor (3).Type: GrantFiled: September 29, 2004Date of Patent: October 12, 2010Assignee: Siemens AktiengesellschaftInventor: Bernd Pfannschmidt
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Patent number: 7714467Abstract: The aim of the invention is to optimise cooling electric machines. As a result, a coolant channel (7) is disposed around the cylindrically-shaped magnet arrangement of the electric machine. Said coolant channel can evenly distribute a coolant in the peripheral direction of the cylindrically-shaped magnet arrangement. The flow of coolant is then guided in an axial direction over the magnet arrangement (2), thereby enabling the electric machine to be evenly cooled on the entire periphery thereof.Type: GrantFiled: July 23, 2004Date of Patent: May 11, 2010Assignee: Siemens AktiengesellschaftInventor: Bernd Pfannschmidt
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Patent number: 7555988Abstract: In order to provide an easy-to-assemble support structure of a guideway of a maglev vehicle, pre-fabricated stator lamination stacks (4) and guideway beam (1) are joined together to the support structure.Type: GrantFiled: December 19, 2003Date of Patent: July 7, 2009Assignee: Siemens AktiengesellschaftInventor: Bernd Pfannschmidt
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Publication number: 20080190725Abstract: A friction clutch for at least one running wheel (9) of a track-bound traction vehicle is disclosed. The running wheel (9) is secured to a shaft (16) and can be driven by a motor (1). The friction clutch has opposite, annular outer jaws formed by a portion (28) of the running wheel (9) and by a compression ring (17, 23) which is firmly fixed to the running wheel (9), a clamping ring (27) being clamped between the compression ring (17, 23) and the portion (28) of the running wheel (9). The invention provides a friction clutch which is easy to produce and easily accessible. Moreover, it allows maximum torque to be subsequently adjusted.Type: ApplicationFiled: April 7, 2006Publication date: August 14, 2008Applicant: Siemens AktiengesellschaftInventors: Klaus Joos, Bernd Pfannschmidt
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Patent number: 7411323Abstract: High-power electric machines must be intensively cooled. At the same time, it is necessary to ensure a high level of immunity to impurities. For this purpose, the rotor and stator sheet packs (41, 42, 61, 62) are embodied in two parts, thereby making it possible to carry out a two-sided ventilation, said parts being maintained separately in the middle by a ring (5, 7). Said ring (5, 7) is provided with ribs (51, 52, 71, 72) in such a way that radial flow channels are formed between partial sheet stacks and ensure corresponding flow rate. In another embodiment, monoblock sheet stacks are provided with cooling channel extensions on either side of the sheet stack. Said cooling extensions alternate on the axial cooling channels in the peripheral direction and transport heated coolant outwards in respectively opposite directions.Type: GrantFiled: April 1, 2004Date of Patent: August 12, 2008Assignee: Siemens AktiengesellschaftInventors: Bernd Pfannschmidt, Ekkehard Pittius
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Publication number: 20070120428Abstract: The invention relates to a direct electrical drive (1) for a wheel set (30) of a vehicle, wherein the direct electrical drive (1) comprises a stator (7) and a rotor (3), with the rotor (3) being coupled mechanically with a wheel set shaft (11). The rotor (3) includes a cooling device. The cooling device includes cooling channels (22), an air inlet (37) and at least one fan (9), whereby the cooling channels (22) extend inside the rotor (3).Type: ApplicationFiled: September 29, 2004Publication date: May 31, 2007Applicant: SIEMENS AKTIENGESELLSCHAFTInventor: Bernd Pfannschmidt
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Publication number: 20070024129Abstract: High-power electric machines must be intensively cooled. At the same time, it is necessary to ensure a high level of immunity to impurities. For this purpose, the rotor and stator sheet packs (41, 42, 61, 62) are embodied in two parts, thereby making it possible to carry out a two-sided ventilation, said parts being maintained separately in the middle by a ring (5, 7). Said ring (5,7) is provided with ribs (51, 52, 71, 72) in such a way that radial flow channels are formed between partial sheet stacks and ensure corresponding flow rate. In another embodiment, monoblock sheet stacks are provided with cooling channel extensions on either side of the sheet stack. Said cooling extensions alternate on the axial cooling channels in the peripheral direction and transport heated coolant outwards in respectively opposite directions.Type: ApplicationFiled: April 1, 2004Publication date: February 1, 2007Applicant: Siemens AktiengesellschaftInventors: Bernd Pfannschmidt, Ekkehard Pittius