Patents by Inventor John Renshaw

John Renshaw 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
  • ADAPTIVE FUEL INJECTOR TRIMMING DURING A ZERO FUEL CONDITION
    Publication number: 20050126538
    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: Application
    Filed: December 11, 2003
    Publication date: June 16, 2005
    Inventors: David Warne, John Renshaw
  • Mechanism for vectoring exhaust flow
    Patent number: 6371407
    Abstract: A mechanism and methods for directing the flow of exhaust gases associated with a V/STOL aircraft. A pair of constant area nozzles are associated with a plenum chamber that receives and contains exhaust gases. The nozzles are independently rotatable within circular exhaust openings in the plenum chamber to direct, or vector, exhaust exiting from the plenum chamber in preselected directions such as vertically downward or directions forward or aft of the vertical plane.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: April 16, 2002
    Assignee: Lockheed Martin Corporation
    Inventor: Kevin John Renshaw
  • Method for producing a piston for an internal combustion engine and a piston produced by the method
    Patent number: 5809962
    Abstract: A piston for an internal combustion engine includes an insert defining an air chamber opening into the combustion chamber. The insert is preformed to a desired configuration and the piston cast around the insert thus securing the insert within the structure of the piston. The insert may be located wholly within the piston or may have a flange part which extends over an outer surface of the piston.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: September 22, 1998
    Assignee: Perkins Limited
    Inventors: Keith Abbott, Daniel Deane, John Renshaw