Patents Examined by Charles G. Feay
  • Patent number: 5974781
    Abstract: The instant invention is directed in general to combustors for gas turbines and, more specifically, to a hybrid can-annular combustor for axial staging in low NOx Combustion. In a preferred embodiment, the instant invention uses premixing stages at different axial positions to carry out axial staging of the heat release for increased operability, where the combustor has a first premixing means for injecting a fuel-air mixture into a can-type configuration for providing the advantages of a can-type combustor for low-load and/or low-temperature conditions and a second premixing means for injecting a fuel-air mixture into an annular-type configuration for providing the advantages of an annular-type combustor for high load and/or high temperature conditions.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: November 2, 1999
    Assignee: General Electric Company
    Inventors: Sanjay Marc Correa, Jeffery Allan Lovett