Patents by Inventor David St. James

David St. James 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).

  • Electric motor assisted mechanical supercharging system
    Patent number: 7849840
    Abstract: This apparatus and method introduces to the internal combustion engine, with a centrifugal compressor or positive displacement air supercharger, a high speed electric motor/generator which is drivingly coupled to a drive shaft system for the purpose of acceleration and generation of pressurized air at low engine speeds and incorporation of one-way and/or magnetic clutches to provide maximum power to the engine operation at all times. The motor/generator when not driving the supercharger is putting energy back into the engine battery.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: December 14, 2010
    Inventor: David St. James
  • Electric motor assisted mechanical supercharging system
    Publication number: 20080173017
    Abstract: This apparatus and method introduces to the internal combustion engine, with a centrifugal compressor or positive displacement air supercharger, a high speed electric motor/generator which is drivingly coupled to a drive shaft system for the purpose of acceleration and generation of pressurized air at low engine speeds and incorporation of one-way and/or magnetic clutches to provide maximum power to the engine operation at all times. The motor/generator when not driving the supercharger is putting energy back into the engine battery.
    Type: Application
    Filed: March 21, 2008
    Publication date: July 24, 2008
    Inventor: David St. James
  • Motor assisted mechanical supercharging system
    Publication number: 20060180130
    Abstract: Internal combustion engine with a centrifugal compressor or positive displacement air supercharger incorporating a high speed electric motor on the drive shaft for the purpose of acceleration and generation of pressurized air at low engine speeds and incorporation of one-way and/or magnetic clutches for efficient operation.
    Type: Application
    Filed: February 7, 2006
    Publication date: August 17, 2006
    Inventor: David St. James