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