Patent attributes
An anti-icing system includes a nozzle assembly, a bleed air supply, a bleed control valve assembly, and a controller. The bleed air supply is configured to direct pressurized bleed air to the nozzle assembly. The bleed air supply includes a first pressure sensor configured to measure a first pressure of the pressurized bleed air. The bleed control valve assembly includes a control valve and a valve actuator. The control valve is positionable to control a flow rate of the pressurized bleed air. The valve actuator is configured to control a position of the control valve. The controller is configured to identify a power condition of the bleed air supply as a first power condition or a second power condition and control the valve actuator to position the control valve in a fully opened position for the first power condition and in a predetermined position based on the first pressure for the second power condition.
