Patents by Inventor Stephen John Howell

Stephen John Howell 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).

  • Sector staging combustor
    Publication number: 20040221582
    Abstract: A combustor includes outer and inner liners joined together by a dome to define a combustor chamber. A row of air swirlers is mounted in the dome and includes corresponding main fuel injectors for producing corresponding fuel and air mixtures. Pilot fuel injectors fewer in number than the main injectors are mounted in the dome between corresponding ones of the swirlers. Staged fuel injection from the pilot and main injectors is used for starting the combustor during operation.
    Type: Application
    Filed: May 8, 2003
    Publication date: November 11, 2004
    Inventors: Stephen John Howell, John Carl Jacobson, Timothy Patrick McCaffrey, Barry Francis Barnes