Deicing apparatus and method

Details Deicing apparatus and method Deicing apparatus and method

1976-04-01

1977-11-29

Blix, Trygve M.

Aeronautics and astronautics

Aircraft structure

Ice prevention

324585B, 340234, B64D 1512

Patent

active

040602125

ABSTRACT:
A system for effecting the removal of ice from external surfaces of aircraft, and particularly from helicopter rotor blades, by the transmission of microwave electromagnetic energy into the ice so that it functions as a surface waveguide. The system includes a permanent surface waveguide with a dielectric constant close to that of ice, so that a composite surface waveguide is formed. The permanent surface waveguide is formed from a characteristically low-loss material, so that the microwave energy is dissipated as heat primarily in the ice layer, thereby very efficiently melting or heating the ice.

REFERENCES:
patent: 1819497 (1931-08-01), Chisholm
patent: 2317019 (1943-04-01), Altemus
patent: 3836846 (1974-09-01), Overall et al.

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