Patent ID: 7604202
Filing Date: 2009-10-20
Classification: B64C,B64D

Abstract:
1. An ice management system for an aircraft having at least one rotor, each rotor having a plurality of blades, the system comprising: an electrical power supply adapted to be carried by the aircraft remote from the rotor; at least one heater carried by the rotor for heating at least a portion of the rotor; a plurality of solid-state control relays, the plurality of solid-state control relays including a first solid-state control relay carried by the rotor and conductively coupled between the power supply and the at least one heater for selectively controlling a flow of electrical power from the power supply to the at least one heater, wherein the plurality of solid-state control relays includes a second control relay in series with the first control relay; and a solid-state feed relay adapted to be carried by the aircraft remote from the rotor, the feed relay being conductively coupled between the power supply and the at least one heater, wherein the solid-state feed relay is connected in series with the first and second control relays and configured for selectively controlling a flow of electrical power to the control relays, and wherein the at least one heater is connected in series between the solid-state feed relay and one of the first and second control relays.