Patents Represented by Law Firm Timmer Edward J.
  • Patent number: 5167116
    Abstract: The small airblast fuel nozzle improves cold ignition of small gas turbine engines of the type having a stagnation air pressure of only 1-11/2 inches of water available from the compressor for cold ignition. The fuel nozzle includes an inner air swirling system comprising a longitudinal cylindrical inner air swirl chamber and multiple air inlet slots spaced circumferentially on the nozzle body to supply air to the chamber. The air inlet slots each include an inner tapered section converging toward and into intersection with the chamber and an outer tapered section converging from the exterior of the nozzle body toward and into intersection with the inner section. The inner section and outer section are canted with respect to one another and in the same direction from one slot to the next so that the inner air slots collectively form a hooked cross type pattern when viewed in plan.
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: December 1, 1992
    Assignee: Fuel Systems Textron Inc.
    Inventors: Theodore R. Koblish, Leonard D. Bell