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Internal/External Split Field Generator

Oak Ridge National Laboratory

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Technology Marketing SummaryThese technologies are designs and methods that boost the efficiency of electric generators by decoupling the magnetic polarity of the driving mechanism while increasing the operational frequency of the machine. Both are unique, low cost methods to develop a generator with a higher power density.DescriptionCommercial applications include stationary, rotational or linear generator sets. The technologies can increase efficiency output at all application levels. Both technologies can be used anywhere a lower cost, higher power density generator is needed.Benefits
  • Increase efficiency
  • Doubles flux change per rotation
  • Magnetic Polarity Independence
  • Increased power density
  • Low cost fabrication
  • Portable
Applications and Industries
  • No moving part sets
  • Stationary, Rotary, or Linear generator sets
  • Anywhere lower cost, higher efficiency generators are needed
Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Date
Patent 8,089,188
Patent
8,089,188
Internal split field generator
A generator includes a coil of conductive material. A stationary magnetic field source applies a stationary magnetic field to the coil. An internal magnetic field source is disposed within a cavity of the coil to apply a moving magnetic field to the coil. The stationary magnetic field interacts with the moving magnetic field to generate an electrical energy in the coil.
Oak Ridge National Laboratory 01/03/2012
Issued
Patent 8,120,225
Patent
8,120,225
External split field generator
A generator includes a coil disposed about a core. A first stationary magnetic field source may be disposed on a first end portion of the core and a second stationary magnetic field source may be disposed on a second end portion of core. The first and second stationary magnetic field sources apply a stationary magnetic field to the coil. An external magnetic field source may be disposed outside the coil to apply a moving magnetic field to the coil. Electrical energy is generated in response to an interaction between the coil, the moving magnetic field, and the stationary magnetic field.
Oak Ridge National Laboratory 02/21/2012
Issued
Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
ORNL ID#2199 and ORNL ID#2200Development - patent pendingAvailable01/22/201002/02/2010

Contact ORNL About This Technology

To: Nestor Fronco<francone@ornl.gov>