A Fluidic Fuel Control Valve for Turbine Engines FREE

[+] Author Affiliations
R. L. Wilcox

Delavan Mfg. Co., West Des Moines, IA

J. H. Shadowen

Florida Research & Development Center, West Palm Beach, FL

Paper No. 71-GT-44, pp. V001T01A044; 4 pages
  • ASME 1971 International Gas Turbine Conference and Products Show
  • ASME 1971 International Gas Turbine Conference and Products Show
  • Houston, Texas, USA, March 28–April 1, 1971
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7982-5
  • Copyright © 1971 by ASME


A fluidic valve, consisting of a swirl chamber with tangential and radial inlets and a single outlet, has been used to provide uniform fuel distribution to the nozzles in an annular combustor designed for a small turbine engine. The fuel nozzles were of the air atomizing type, with large flow passages for contamination tolerance. Pressure drop across the nozzles was too small at low fuel flows to overcome hydraulic heat effects and uniformly distribute the fuel to the nozzles. A fluidic valve installed in series with each nozzle provided sufficient pressure drop to distribute the fuel at low flow rates without requiring exceptionally high fuel pressures at large flow rates. The fluidic valves were fed by a dual man fold fuel system. Fuel flow was divided between the two manifolds, which were connected separately to the tangential and radial inlets of the fluidic valves, by a pressure relief valve. The flow schedule of the system was similar to that of a dual orifice pressure atomizing fuel system. Turn down requirements of the system were 40:1.

Copyright © 1971 by ASME
Topics: Fuels , Gas turbines , Valves
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