NASA SBIR SUCCESS STORY Glenn Research Center
1994 Phase 2

Low-NOx Fuel-Injector for Aircraft-Engine Combustors

CFD Research Corporation

Huntsville, AL

INNOVATION
    Piloted airblast lean-direct fuel-injector that utilizes a bifurcated flow pattern for low emissions

Cross-Section of Prototype Fuel Injector
Cross-Section of Prototype Fuel Injector
ACCOMPLISHMENTS
  • Emission results were obtained with single-injector tests
  • A 60-65% reduction of NOx levels compared to 1996 International Civil Aviation Organization's (ICAO) defined landing-takeoff cycle (LTO) standards was obtained
  • Achieved a lean-blowout equivalence-ratio of 0.08
  • Demonstrated reliable ignition and altitude relight
COMMERCIALIZATION
  • CFDRC has received approximately $2.0M of funding from three aircraft-engine manufacturers to further develop the injector
  • Testing has progressed from single injector tests to full annular combustor tests to demonstrator engine testing
  • Obtained U.S. Patent No. 6,272,840
  • Obtained a patent license agreement; will receive royalties if injector becomes an engine product

GOVERNMENT/SCIENCE APPLICATIONS
  • U.S. Navy (NAVAIR) is currently funding a Phase II SBIR to study the injector for Joint Strike Fighter (JSF) application
  • Office of Naval Research (ONR) plans to fund a Phase II SBIR to incorporate a pulsed-corona discharge electrode into the JSF injector to improve lean blowout
For more information about this firm, please send e-mail to company representative

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Curator: SBIR Support                3/21/05