Patents by Inventor Jörg Rollmann
Jörg Rollmann 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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Publication number: 20230167808Abstract: A Wind turbine (100) with a rotor bearing (1) is proposed, wherein drainage chambers (7) on both sides of the rotor bearing (1) are connected to each other via a plurality of channels (5) traversing an outer ring (2) of the rotor bearing (1), which are distributed over the circumference of the outer ring (2) and that an axis (A) of the rotor bearing (1) is arranged at an angle in the range of 2° to 10° to the horizontal line (H) for promoting a flow of leakage oil through the channels (5).Type: ApplicationFiled: April 26, 2021Publication date: June 1, 2023Inventors: Björn CAMPE, Gunther ELFERT, Jörg ROLLMANN, Bernd LÜNEBURG, Stephan FRONING, Simone Angelo SANTORO, Yevgeni SHARYPKIN, Kim THOMSEN, Alejandro CERDA VARELA, Niels Karl FRYDENDAL, Morten THORHAUGE, Henrik Gyldenlev MORTENSEN
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Patent number: 11525478Abstract: A wind turbine includes a rotor shaft. The rotor shaft is mounted via a bearing assembly having a first bearing ring and a second bearing ring mounted to rotate in relation to the first bearing ring. A hydrostatically supported first friction bearing segment is disposed on the first bearing ring and interacts with a first friction face that is disposed on the second bearing ring. The first friction bearing segment is received in a receptacle pocket of the first bearing ring such that a first compression chamber is formed between the first bearing ring and the first friction bearing segment. The first friction bearing segment is configured such that a second compression chamber is formed between the first friction bearing segment and the second bearing ring, wherein the first compression chamber and the second compression chamber are connected by a duct that runs through the first friction bearing segment.Type: GrantFiled: March 14, 2018Date of Patent: December 13, 2022Assignees: THYSSENKRUPP ROTHE ERDE GMBH, THYSSENKRUPP AGInventors: Bernd Lüneburg, Jörg Rollmann, Gunther Elfert
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Patent number: 10935072Abstract: A bearing assembly may include a first bearing ring, a second bearing ring, and at least one row of rolling elements having a plurality of rolling elements that are disposed so as to be capable of rolling on a first raceway of the first bearing ring and on a second raceway of the second bearing ring. At least one hydrostatically supported first sliding bearing segment may be disposed on the first bearing ring. Further, the hydrostatically supported first sliding bearing segment may interact with a first bearing face that is disposed on the second bearing ring. The hydrostatically supported first sliding bearing segment may be mounted so as to be movable in a movement direction that is perpendicular to the first bearing face.Type: GrantFiled: March 14, 2018Date of Patent: March 2, 2021Assignees: THYSSENKRUPP ROTHE ERDE GMBH, THYSSENKRUPP AGInventors: Bernd Lüneburg, Jörg Rollmann, Gunther Elfert
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Publication number: 20200088234Abstract: A bearing assembly may include a first bearing ring, a second bearing ring, and at least one row of rolling elements having a plurality of rolling elements that are disposed so as to be capable of rolling on a first raceway of the first bearing ring and on a second raceway of the second bearing ring. At least one hydrostatically supported first sliding bearing segment may be disposed on the first bearing ring. Further, the hydrostatically supported first sliding bearing segment may interact with a first bearing face that is disposed on the second bearing ring. The hydrostatically supported first sliding bearing segment may be mounted so as to be movable in a movement direction that is perpendicular to the first bearing face.Type: ApplicationFiled: March 14, 2018Publication date: March 19, 2020Applicants: THYSSENKRUPP ROTHE ERDE GMBH, thyssenkrupp AGInventors: Bernd LÜNEBURG, Jörg ROLLMANN, Gunther ELFERT
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Patent number: 10578157Abstract: A magnetic bearing may include an inner ring and an outer ring arranged concentrically. The inner ring and the outer ring may be mounted rotatably relative to each other by way of axial and radial magnets. The magnetic bearing may also include a back-up bearing, which is integrated into at least one of the outer ring or the inner ring both in an axial direction and in a radial direction. The outer ring may be multipiece and may include a recess that opens inwards and receives the inner ring. Further, the back-up bearing may be made of aluminum, austenitic steel, bronze, or ceramic, and the back-up bearing may operate as a shielding device that shields magnetic fields emitted by the axial and radial magnets from one another.Type: GrantFiled: February 12, 2016Date of Patent: March 3, 2020Assignees: THYSSENKRUPP ROTHE ERDE GMBH, THYSSENKRUPP TRANSRAPID GMBH, THYSSENKRUPP AGInventors: Klaus Pantke, Qinghua Zheng, Erhard Lampersberger, Bernd Lüneburg, Jörg Rollmann, Florian Dignath
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Publication number: 20200040941Abstract: A wind turbine includes a rotor shaft. The rotor shaft is mounted via a bearing assembly having a first bearing ring and a second bearing ring mounted to rotate in relation to the first bearing ring. A hydrostatically supported first friction bearing segment is disposed on the first bearing ring and interacts with a first friction face that is disposed on the second bearing ring. The first friction bearing segment is received in a receptacle pocket of the first bearing ring such that a first compression chamber is formed between the first bearing ring and the first friction bearing segment. The first friction bearing segment is configured such that a second compression chamber is formed between the first friction bearing segment and the second bearing ring, wherein the first compression chamber and the second compression chamber are connected by a duct that runs through the first friction bearing segment.Type: ApplicationFiled: March 14, 2018Publication date: February 6, 2020Applicants: THYSSENKRUPP ROTHE ERDE GMBH, thyssenkrupp AGInventors: Bernd LÜNEBURG, Jörg ROLLMANN, Gunther ELFERT
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Patent number: 10495147Abstract: A rolling bearing with an inner ring and an outer ring which is rotatable about a rotation axis relative to the inner ring, or with an outer ring and an inner ring which is rotatable about a rotation axis relative to the outer ring, and with at least one sealing element arranged between the inner ring and the outer ring for sealing an interior of the rolling bearing which can be filled with a lubricant. The rolling bearing includes a conveying element for conveying the lubricant which is arranged on the one of the inner ring and outer ring so as to be rotatable about the rotation axis of the rolling bearing and in such a way that a play exists between the conveying element and the other of the inner ring and outer ring.Type: GrantFiled: January 25, 2017Date of Patent: December 3, 2019Assignees: THYSSENKRUPP ROTHE ERDE GMBH, THYSSENKRUPP AGInventors: Gunther Elfert, Stefan Löffler, Bernd Lüneburg, Jörg Rollmann
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Publication number: 20190032716Abstract: A rolling bearing with an inner ring and an outer ring which is rotatable about a rotation axis relative to the inner ring, or with an outer ring and an inner ring which is rotatable about a rotation axis relative to the outer ring, and with at least one sealing element arranged between the inner ring and the outer ring for sealing an interior of the rolling bearing which can be filled with a lubricant. The rolling bearing includes a conveying element for conveying the lubricant which is arranged on the one of the inner ring and outer ring so as to be rotatable about the rotation axis of the rolling bearing and in such a way that a play exists between the conveying element and the other of the inner ring and outer ring.Type: ApplicationFiled: January 25, 2017Publication date: January 31, 2019Applicants: THYSSENKRUPP ROTHE ERDE GMBH, thyssenkrupp AGInventors: Gunther ELFERT, Stefan LÖFFLER, Bernd LÜNEBURG, Jörg ROLLMANN
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Publication number: 20180128314Abstract: A magnetic bearing may include an inner ring and an outer ring arranged concentrically. The inner ring and the outer ring may be mounted rotatably relative to each other by way of axial and radial magnets. The magnetic bearing may also include a back-up bearing, which is integrated into at least one of the outer ring or the inner ring both in an axial direction and in a radial direction. The outer ring may be multipiece and may include a recess that opens inwards and receives the inner ring. Further, the back-up bearing may be made of aluminum, austenitic steel, bronze, or ceramic, and the back-up bearing may operate as a shielding device that shields magnetic fields emitted by the axial and radial magnets from one another.Type: ApplicationFiled: February 12, 2016Publication date: May 10, 2018Applicants: THYSSENKRUPP ROTHE ERDE GMBH, THYSSENKRUPP TRANSRAPID GMBH, thyssenkrupp AGInventors: Klaus PANTKE, Qinghua ZHENG, Erhard LAMPERSBERGER, Bernd LÜNEBURG, Jörg ROLLMANN, Florian DIGNATH
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Patent number: 9022663Abstract: An oil-lubricated anti-friction bearing is provided for a horizontal arrangement of a rotational axis with a shaft seal that separates a bearing inner chamber, which accommodates rolling bodies, from a bearing outer side, and has a clamping arrangement which acts on the shaft seal from a bearing outer side in order to fix the shaft seal axially. The clamping arrangement has an outlet for oil.Type: GrantFiled: October 3, 2013Date of Patent: May 5, 2015Inventors: Andreas Palmer, Jörg Rollmann
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Publication number: 20140029882Abstract: An oil-lubricated anti-friction bearing is provided for a horizontal arrangement of a rotational axis with a shaft seal that separates a bearing inner chamber, which accommodates rolling bodies, from a bearing outer side, and has a clamping arrangement which acts on the shaft seal from a bearing outer side in order to fix the shaft seal axially. The clamping arrangement has an outlet for oil.Type: ApplicationFiled: October 3, 2013Publication date: January 30, 2014Inventors: Andreas PALMER, Jörg ROLLMANN
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Patent number: 8319385Abstract: A method is provided for supporting rotatable devices, particularly a medical scanner having an inner ring and an outer ring. According to the invention, the inner ring and outer ring are guided without contact in the axial and/or radial direction by the magnetic field of electromagnets, and the distance between them is monitored and controlled by means of distance sensors. For a bearing implementing said method according to the invention, the outer ring is made in multiple parts and has a U-shaped cross section that is open to the inside in the assembled state, into which the inner ring (1, 10, 11) extends, and electromagnets and distance sensors are disposed in the axially and radially opposite areas of the inner ring or outer ring.Type: GrantFiled: August 13, 2008Date of Patent: November 27, 2012Assignees: Rothe Erde GmbH, ThyssenKrupp Transrapid GmbHInventors: Uwe-Otto Breucker, Wolfgang Claus, Jörg Rollmann, Freidrich Löser, Qinghua Zheng, Markus Bauer
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Publication number: 20100181854Abstract: A method is provided for supporting rotatable devices, particularly a medical scanner having an inner ring and an outer ring. According to the invention, the inner ring and outer ring are guided without contact in the axial and/or radial direction by the magnetic field of electromagnets, and the distance between them is monitored and controlled by means of distance sensors. For a bearing implementing said method according to the invention, the outer ring is made in multiple parts and has a U-shaped cross section that is open to the inside in the assembled state, into which the inner ring (1, 10, 11) extends, and electromagnets and distance sensors are disposed in the axially and radially opposite areas of the inner ring or outer ring.Type: ApplicationFiled: August 13, 2008Publication date: July 22, 2010Inventors: Uwe-Otto Breucker, Wolfgang Claus, Jörg Rollmann, Freidrich Löser, Qinghua Zheng, Markus Bauer
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Patent number: 7146735Abstract: A bearing ring for a large roller bearing is formed with at least one annular race which is hardened by heating by juxtaposing that race with an inductor across a spacing which is maintained during the heating and then quenching. The spacing is controlled selectively so that it is: 1 to 2 times a depth T of hardening of the surface layer for a radial-bearing race, 0.6 to 1 times the depth T of hardening of the surface layer for an axial-bearing race whose inner diameter corresponds to an inner diameter of the bearing ring, at an outer edge of the axial-bearing race, 1.5 to 2 times the depth T of hardening of the surface layer for the axial-bearing race whose inner diameter corresponds to an inner diameter of the bearing ring at an inner edge thereof, and varying continuously between the outer edge and the inner edge, and uniformly 0.6 to 1 times the depth T of hardening of the surface layer for an axial-bearing race whose inner diameter is greater than that of the bearing ring.Type: GrantFiled: June 11, 2003Date of Patent: December 12, 2006Assignee: Rothe Erde GmbHInventors: Josef Bracht, Jörg Rollmann, Bernd Stakemeier, Johannes Wozniak
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Publication number: 20040000053Abstract: A bearing ring for a large roller bearing is formed with at least one annular race which is hardened by heating by juxtaposing that race with an inductor across a spacing which is maintained during the heating and then quenching.Type: ApplicationFiled: June 11, 2003Publication date: January 1, 2004Applicant: Rothe Erde GmbHInventors: Josef Bracht, Jorg Rollmann, Bernd Stakemeier, Johannes Wozniak