Patents by Inventor Nikolai I. Lebedev

Nikolai I. Lebedev 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).

  • Electrical machine
    Patent number: 4496868
    Abstract: An electrical machine comprising a cylindrical housing accommodating a rotor made in the form of at least two pole systems having pole projections and interconnected through a magnetic circuit, a stator having at least two stacks of laminations, and an excitation system. The excitation system is mounted on the outside of the housing and composed of magnetically conductive and nonmagnetic portions arranged alternately in an axial direction, with a respective stator stack secured to each of the magnetically conductive portions of the housing.
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: January 29, 1985
    Assignee: Vsesojuzny Nauchno-Issledovatelsky Institut Elektromashinostroenia
    Inventors: Nikolai P. Advolotkin, Svetlana A. Belyaeva, Igor E. Ovchinnikov, Nikolai I. Lebedev, Alexei J. Yankovsky, Stanislav P. Sytykh, Jury A. Khrenov, Vladimir N. Axenov
  • Rotor of high-speed electric machine
    Patent number: 4472650
    Abstract: A rotor of a high-speed electric machine comprises a shaft 1, a magnetic ring 2 enclosing the shaft 1, a retaining ring 3, and permanent magnets 6 sisposed between the retaining ring 3 and the magnetic ring 2. The retaining ring 3 is secured to the shaft 1 by couplers, and a clearance 7 is provided between the permanent magnets 6 attached to the inside surface 5 of the retaining ring 3 and the magnetic ring 2.
    Type: Grant
    Filed: February 11, 1982
    Date of Patent: September 18, 1984
    Inventors: Nikolai P. Advolotkin, Nikolai I. Lebedev, Igor E. Ovchinnikov