Patents by Inventor Hubertus Büttner

Hubertus Büttner 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: 10601270
    Abstract: A rotor having a lamination stack including a first partial stack with first sheet metal laminations and a second partial stack with second sheet metal laminations. The laminations and partial stacks are joined axially along a center axis of the lamination stack. Each partial stack has a radially inner circumferential area and a radially outer circumferential area and a plurality of connection areas distributed in circumferential direction in mutual register at the joined partial stacks and form a common connection area. At least one of the partial stacks includes a fastening area for arranging the lamination stack at a carrier element. The lamination stack has a magnetic interaction area formed by one of the circumferential areas of the partial stacks for cooperation with a stator. The magnetic interaction area has a plurality of rotor poles with permanent magnets, which are uniformly distributed along the circumference.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: March 24, 2020
    Assignee: ZF Friedrichshafen AG
    Inventors: Walter Wolf, Hubertus Büttner, Christian Kirchner
  • Publication number: 20190207444
    Abstract: A rotor having a lamination stack including a first partial stack with first sheet metal laminations and a second partial stack with second sheet metal laminations. The laminations and partial stacks are joined axially along a center axis of the lamination stack. Each partial stack has a radially inner circumferential area and a radially outer circumferential area and a plurality of connection areas distributed in circumferential direction in mutual register at the joined partial stacks and form a common connection area. At least one of the partial stacks includes a fastening area for arranging the lamination stack at a carrier element. The lamination stack has a magnetic interaction area formed by one of the circumferential areas of the partial stacks for cooperation with a stator. The magnetic interaction area has a plurality of rotor poles with permanent magnets, which are uniformly distributed along the circumference.
    Type: Application
    Filed: April 18, 2017
    Publication date: July 4, 2019
    Inventors: Walter WOLF, Hubertus BÜTTNER, Christian KIRCHNER
  • Patent number: 7732970
    Abstract: A rotor for an electric machine includes a rotor carrier having a cylindrical axial support portion which extends axially with respect to an axis of rotation of the rotor, a sheet pack which includes a plurality of lamellar sheets and is attached to the axial support portion at an attachment area, and a first weld in the sheet pack at a predetermined distance away from the attachment area to fasten a plurality of the lamellar sheets together.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: June 8, 2010
    Assignee: ZF Friedrichshafen AG
    Inventors: Hubertus Büttner, Marcus van Heyden, Markus Deutel, Alfons Vollmuth
  • Patent number: 7365460
    Abstract: In a plurality of stator coils arranged on the yoke, each coil has a pair of ends, each end being adjacent to a respective end of an adjacent coil to form pairs of adjacent ends. A plurality of mutually insulated concentrically arranged linking conductors each has a plurality of circumferentially arranged terminal elements, each terminal element being electrically connected to a respective pair of adjacent ends to form a contact area in a common axial and radial position.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: April 29, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Werner Herlet, Hubertus Büttner, Michael Fister, Bernhard Schmitt, Marcus van Heyden, Alfons Vollmuth, Manfred Röder, Khalid Jafoui, Jens Baumeister, Knut Welke