Electro-impulse de-icer

Details Electro-impulse de-icer Electro-impulse de-icer

1993-10-22

1995-07-04

Barefoot, Galen

Aeronautics and astronautics

Aircraft structure

Ice prevention

244134R, B64D 1518

Patent

active

054293278

ABSTRACT:
An electro-impulse de-icer for de-icing an aircraft structural member having an opening in the leading edge and including an inductor coil. The inductor coil is disposed either at least partially within the opening or adjacent to the opening. The de-icer further includes a movable metal target disposed in proximity with the coil. The target is supported by a flexible, ice-accumulating support member that permits the target to move relative to the coil and to the structural member. The support member is rapidly, and forcefully, displaced away from the coil and the structural member upon passing a short-duration, high-current pulse through the coil. The current flow creates an electromagnetic field that induces eddy currents in the target and the support member (if made of metal). Upon collapse of the electromagnetic field in the coil, the target and support member are pulled rapidly to their rest position.

REFERENCES:
patent: 2271466 (1942-01-01), Schmidt
patent: 2432669 (1947-12-01), Klieven
patent: 3809341 (1974-05-01), Levin et al.
patent: 4629149 (1986-12-01), Carson et al.
patent: 4678144 (1987-07-01), Goehner et al.
patent: 4895322 (1990-01-01), Zieve
patent: 5129598 (1992-07-01), Adams et al.
patent: 5152480 (1992-10-01), Adams et al.
patent: 5318253 (1994-06-01), Levin

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