Patents by Inventor Ayman Mohamed Fawzi El-Rafai

Ayman Mohamed Fawzi El-Rafai 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).

  • Fault-tolerant permanent magnet machine with reconfigurable stator core slot opening and back iron flux paths
    Patent number: 7605503
    Abstract: A permanent magnet (PM) machine includes a plurality of reconfigurable fault condition mechanisms disposed within a stator core portion, the plurality of reconfigurable fault condition mechanisms together automatically reconfigurable to reduce fault currents and internal heat associated with the PM machine during a fault condition. The plurality of reconfigurable fault condition mechanisms are disposed solely within the stator core portion according to one embodiment to automatically reduce stator winding fault currents and internal heat associated with the PM machine during a fault condition.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: October 20, 2009
    Assignee: General Electric Company
    Inventors: Ayman Mohamed Fawzi El-Rafai, John Michael Kern, Manoj Ramprasad Shah
  • Fault-tolerant permanent magnet machine with reconfigurable stator core slot opening and back iron flux paths
    Publication number: 20080238233
    Abstract: A permanent magnet (PM) machine includes a plurality of reconfigurable fault condition mechanisms disposed within a stator core portion, the plurality of reconfigurable fault condition mechanisms together automatically reconfigurable to reduce fault currents and internal heat associated with the PM machine during a fault condition. The plurality of reconfigurable fault condition mechanisms are disposed solely within the stator core portion according to one embodiment to automatically reduce stator winding fault currents and internal heat associated with the PM machine during a fault condition.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 2, 2008
    Inventors: Ayman Mohamed Fawzi El-Rafai, John Michael Kern, Manoj Ramprasad Shah