Patents by Inventor Philip Laurence Elliott

Philip Laurence Elliott 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).

  • Fuel supply system
    Patent number: 7234293
    Abstract: A fuel supply system for a gas turbine engine including first and second positive displacement pumps operated simultaneously to supply fuel under pressure from a low pressure source, a combining spill valve controlling the output flows from the first and second pumps to combine the outputs of the first and second pumps for supply to a metering valve of the system, or to spill some or all of the output of one or both pumps back to the low pressure supply, a pressure raising and shut off valve arrangement downstream of the metering valve for isolating the fuel system from an associated engine until the fuel pressure upstream of the pressure raising and shut off valve arrangement exceeds a predetermined pressure, and, a control system dependent upon the position of the combining spill valve for reducing said predetermined pressure at which said pressure raising and shut off valve arrangement opens.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: June 26, 2007
    Assignee: Goodrich Control Systems Limited
    Inventors: Martin Kenneth Yates, Philip Laurence Elliott
  • Fuel injection system for a combustion engine
    Patent number: 6848250
    Abstract: According to the present invention there is provided a fuel injection system for a combustion engine, comprising: a fuel metering unit for providing a metered supply of pressurized fuel, at least one first fuel injector, at least one second fuel injector, a fuel supply passage arrangement for supplying fuel from the fuel metering unit to the at least one first fuel injector and the at least one second fuel injector. The fuel supply passage arrangement including a first valve for controlling the flow of fuel from the fuel metering unit to the at least one second fuel injector. The first valve having a fuel inlet communicating with the fuel metering unit, a fuel supply outlet communicating with the at least one second injector.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: February 1, 2005
    Assignee: Goodrich Control Systems Ltd.
    Inventors: Glyn Edward Dixon, Philip Laurence Elliott
  • Fuel system
    Patent number: 6745556
    Abstract: The present invention relates to a fuel control system for use in conjunction with a gas turbine engine.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: June 8, 2004
    Assignee: Lucas Industries Limited
    Inventor: Philip Laurence Elliott
  • Fuel injection system for a combustion engine
    Publication number: 20030172641
    Abstract: According to the present invention there is provided a fuel injection system for a combustion engine, comprising:
    Type: Application
    Filed: February 21, 2003
    Publication date: September 18, 2003
    Inventors: Glyn Edward Dixon, Philip Laurence Elliott
  • Fuel system
    Publication number: 20030019203
    Abstract: A fuel control system for a gas turbine engine comprising,
    Type: Application
    Filed: July 25, 2002
    Publication date: January 30, 2003
    Inventor: Philip Laurence Elliott