Patents by Inventor Ronald Francis Griebel

Ronald Francis Griebel 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).

  • Patent number: 6023137
    Abstract: A method and apparatus for cranking of an internal combustion engine in an AC electric traction motor propelled vehicle using inverters normally coupled to supply power to each of a plurality of AC motors. The inverters have DC input terminals connected between a relatively positive DC bus and a relatively negative DC bus and the DC buses are connected to DC output terminals of a rectifier. The rectifier has AC input terminals connected to stator terminals of a synchronous generator. The generator includes a field winding and a rotor connected in driving relationship to a crank shaft of the engine.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: February 8, 2000
    Assignee: General Electric Company
    Inventors: Ajith Kuttannair Kumar, Ronald Francis Griebel