The Boeing Company
Turbofan engine fluid ice protection delivery system

Abstract:

Method and system to deliver anti-ice fluid to an ice prone surface using a pressurized tank pressurized with engine bleed air. The method and system further uses an eductor to evacuate anti-ice fluid such that the anti-ice fluid's unwanted leakage is eliminated or reduced. The method and system further measures a flow rate of anti-ice fluid using a positive displacement fluid meter.