Patents Assigned to Energia Andina Ltda.
  • Rotating electric machine with speed/frequency control
    Patent number: 4472673
    Abstract: A rotating electric machine comprising a stator 1 and a rotor 5 which is adapted to be rotated about an axis and which is disposed opposite said stator 1. Normally, the magnetic field of the rotor is excited by a direct current which is supplied via sliding contacts. In order to avoid wear of the sliding contacts, the invention employs the measure that the exciting current for the magnetic field of the rotor is supplied via a second stator 13 and a second rotor 9 by means of induction.
    Type: Grant
    Filed: April 15, 1982
    Date of Patent: September 18, 1984
    Assignee: Energia Andina Ltda.
    Inventor: Jeorge Miller