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).

  • Publication number: 20230167808
    Abstract: 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: Application
    Filed: April 26, 2021
    Publication date: June 1, 2023
    Inventors: 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
  • Patent number: 11525478
    Abstract: 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: Grant
    Filed: March 14, 2018
    Date of Patent: December 13, 2022
    Assignees: THYSSENKRUPP ROTHE ERDE GMBH, THYSSENKRUPP AG
    Inventors: Bernd Lüneburg, Jörg Rollmann, Gunther Elfert
  • Patent number: 10935072
    Abstract: 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: Grant
    Filed: March 14, 2018
    Date of Patent: March 2, 2021
    Assignees: THYSSENKRUPP ROTHE ERDE GMBH, THYSSENKRUPP AG
    Inventors: Bernd Lüneburg, Jörg Rollmann, Gunther Elfert
  • Publication number: 20200088234
    Abstract: 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: Application
    Filed: March 14, 2018
    Publication date: March 19, 2020
    Applicants: THYSSENKRUPP ROTHE ERDE GMBH, thyssenkrupp AG
    Inventors: Bernd LÜNEBURG, Jörg ROLLMANN, Gunther ELFERT
  • Patent number: 10578157
    Abstract: 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: Grant
    Filed: February 12, 2016
    Date of Patent: March 3, 2020
    Assignees: THYSSENKRUPP ROTHE ERDE GMBH, THYSSENKRUPP TRANSRAPID GMBH, THYSSENKRUPP AG
    Inventors: Klaus Pantke, Qinghua Zheng, Erhard Lampersberger, Bernd Lüneburg, Jörg Rollmann, Florian Dignath
  • Publication number: 20200040941
    Abstract: 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: Application
    Filed: March 14, 2018
    Publication date: February 6, 2020
    Applicants: THYSSENKRUPP ROTHE ERDE GMBH, thyssenkrupp AG
    Inventors: Bernd LÜNEBURG, Jörg ROLLMANN, Gunther ELFERT
  • Patent number: 10495147
    Abstract: 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: Grant
    Filed: January 25, 2017
    Date of Patent: December 3, 2019
    Assignees: THYSSENKRUPP ROTHE ERDE GMBH, THYSSENKRUPP AG
    Inventors: Gunther Elfert, Stefan Löffler, Bernd Lüneburg, Jörg Rollmann
  • Publication number: 20190032716
    Abstract: 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: Application
    Filed: January 25, 2017
    Publication date: January 31, 2019
    Applicants: THYSSENKRUPP ROTHE ERDE GMBH, thyssenkrupp AG
    Inventors: Gunther ELFERT, Stefan LÖFFLER, Bernd LÜNEBURG, Jörg ROLLMANN
  • Publication number: 20180128314
    Abstract: 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: Application
    Filed: February 12, 2016
    Publication date: May 10, 2018
    Applicants: THYSSENKRUPP ROTHE ERDE GMBH, THYSSENKRUPP TRANSRAPID GMBH, thyssenkrupp AG
    Inventors: Klaus PANTKE, Qinghua ZHENG, Erhard LAMPERSBERGER, Bernd LÜNEBURG, Jörg ROLLMANN, Florian DIGNATH
  • Patent number: 9022663
    Abstract: 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: Grant
    Filed: October 3, 2013
    Date of Patent: May 5, 2015
    Inventors: Andreas Palmer, Jörg Rollmann
  • Publication number: 20140029882
    Abstract: 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: Application
    Filed: October 3, 2013
    Publication date: January 30, 2014
    Inventors: Andreas PALMER, Jörg ROLLMANN
  • Patent number: 8319385
    Abstract: 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: Grant
    Filed: August 13, 2008
    Date of Patent: November 27, 2012
    Assignees: Rothe Erde GmbH, ThyssenKrupp Transrapid GmbH
    Inventors: Uwe-Otto Breucker, Wolfgang Claus, Jörg Rollmann, Freidrich Löser, Qinghua Zheng, Markus Bauer
  • Publication number: 20100181854
    Abstract: 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: Application
    Filed: August 13, 2008
    Publication date: July 22, 2010
    Inventors: Uwe-Otto Breucker, Wolfgang Claus, Jörg Rollmann, Freidrich Löser, Qinghua Zheng, Markus Bauer
  • Patent number: 7146735
    Abstract: 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: Grant
    Filed: June 11, 2003
    Date of Patent: December 12, 2006
    Assignee: Rothe Erde GmbH
    Inventors: Josef Bracht, Jörg Rollmann, Bernd Stakemeier, Johannes Wozniak
  • Publication number: 20040000053
    Abstract: 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: Application
    Filed: June 11, 2003
    Publication date: January 1, 2004
    Applicant: Rothe Erde GmbH
    Inventors: Josef Bracht, Jorg Rollmann, Bernd Stakemeier, Johannes Wozniak