Blade de-icer for rotary wing aircraft

Details Blade de-icer for rotary wing aircraft Blade de-icer for rotary wing aircraft

1995-10-16

1998-01-06

Grant, William

Aeronautics and astronautics

Aircraft, heavier-than-air

Helicopter or auto-rotating wing sustained, i.e., gyroplanes

244134D, B64D 1512

Patent

active

057045674

ABSTRACT:
A blade de-icer for rotary wing aircraft comprises magnets placed around rotor mast and coils with laminated plates installed at the blade cuff of each rotor blade, in sufficient proximity to produce a high voltage, high current pulse every time a magnet and a coil pass each other while the rotor is turning. Electrically conductive cable or wire carries the current down each rotor blade to heating elements which melt any accreted ice on the blade. In one embodiment, magnetic metals are used. In another embodiment, electromagnets are used. In each embodiment, difficult switches for turning the de-icer on and off are provided.

REFERENCES:
patent: 2429061 (1947-10-01), Hunter
patent: 2444557 (1948-07-01), Eaton
patent: 2491172 (1949-12-01), Forsyth
patent: 2678181 (1954-05-01), Geyer et al.

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