Patents by Inventor David G. Warne

David G. Warne 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).

  • Adaptive fuel injector trimming during a zero fuel condition
    Patent number: 6964261
    Abstract: Apparatuses and methods for controlling a fuel injector. A fuel shot is injected during a zero fuel condition. A rail pressure drop corresponding to the fuel shot is determined. A change in engine speed corresponding to the fuel shot is determined. An adjustment to the fuel injection as a function of the rail pressure drop and the corresponding change in engine speed is determined.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: November 15, 2005
    Assignee: Perkins Engines Company Limited
    Inventors: David G. Warne, John Renshaw