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Piezo Pulsed Atomizer Development

Spray quality improvement at sub-idle conditions

Combustion stability improvement at LBO limits and ignition stability at high altitude relight

Method of operation: the spray is pulsed with a piezoelectric injector. Instantaneous high pressure pulses produce droplets orders of magnitude smaller in comparison to an injector operated at steady pressure.

Test Features

  • Driving Frequency: 0-400 Hz
  • Min. Pulse Width: 0.14 ms
  • Driving Signal: TTL
  • Fuel Flow Rate: 10 pph
  • NI Direct Injector Driver
  • Diagnostics: Background shadowgraphy, laser sheet visualization, LBO, ignition studies

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College of Engineering & Applied Science | Department of Aerospace Engineering & Engineering Mechanics