Patents by Inventor Mikhail Valerievich Fadeev

Mikhail Valerievich Fadeev 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).

  • Gerotor mechanism for a screw hydraulic machine
    Patent number: 7226279
    Abstract: The invention relates to gerotor mechanisms for screw downhole motors used for drilling oil and gas wells, to screw pumps for producing oil and pumping fluids and to general purpose screw motors. The profiles of a rotor (3) and stator (1) are outlined in the end cross section thereof in the form of the envelop of the initial contour of a rack-type tool, which is formed by conjugation of circle arcs when said initial contour of the rack-type tool is run without sliding along corresponding tool circles. The arc radii of the circle arcs of the initial contour are calculated according to determined relations. Said invention makes it possible to improve energy characteristics, increase a life service and producibility, to reduce hydromechanical losses and costs.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: June 5, 2007
    Assignee: Obschestvi S Ogranichennoi Otvetstvennostyu “Firma Radius-Servis”
    Inventors: Vladimir Nikolaevich Andoskin, Sergei Petrovich Astafiev, Maksim Anatolievich Pushkarev, Aleksei Sergeevich Glinkin, Mikhail Valerievich Fadeev