초록 ▼

A helicopter deicing control system (10) is provided for selectively distributing D.C. electrical power to a plurality of deicing segments (80, 90) on main and tail rotor blades with only two slip-ring assemblies (60 and 61, 62 and 63) for each rotor drive shaft. A power distribution controller (20)

A helicopter deicing control system (10) is provided for selectively distributing D.C. electrical power to a plurality of deicing segments (80, 90) on main and tail rotor blades with only two slip-ring assemblies (60 and 61, 62 and 63) for each rotor drive shaft. A power distribution controller (20) receives electrical power from the helicopter\s onboard, fixed electrical power system and provides an output signal including power and control D.C. electrical signals of opposite polarities. A distributor (70) receives the output signal from controller (20) and increments a rotary switch (74) upon receipt of a D.C. electrical control signal, and distributes power to the main rotor deicing segment (90) connected to the rotary switch (74) contact then engaged upon the receipt of a D.C. electrical power signal so as to sequentially deliver D.C. electrical power to the desired main rotor deicing segment. Controller (30) includes provisions for individually preselecting the operating time for each deicing segment (80, 90), testing the operation and providing a continuous visual indication of the operational status of deicing control system (10).

대표청구항 ▼

A device for selectively distributing electrical power to a plurality of load elements on at least one rotating member comprising: a source of electrical power; controller means connected to said source of electrical power and providing an output signal having an electrical parameter variable betwee

A device for selectively distributing electrical power to a plurality of load elements on at least one rotating member comprising: a source of electrical power; controller means connected to said source of electrical power and providing an output signal having an electrical parameter variable between at least two distinguishable states, a first control state for selecting which of the load elements is to next receive power and a second power state for distributing electrical power to whichever load element is selected; and, distributor means rotating with the rotating member for receiving said output signal from said controller means, said distributor means switching upon receipt of said output signal in said first control state to the load element to next receive power, and distributing electrical power only upon receipt of said output signal in said second power state to whichever load element is selected.