Embedded turbofan deicer system
Abstract:
An embedded turbofan deicer system (ETDS) may eliminate the ingested ice crystal icing problem plaguing high bypass turbofan engines operating at high altitudes near convective tropical storms: icing occurring on the surfaces of the engine's rotating engine spinner, fan blades, low pressure compressor casing and low pressure compressor and causing loss of power and on occasion engine flameouts. The invention supplies electricity to heat these engine parts using at least one reversed permanent magnet electric generator (reversed PMEG) driven by the turbofan's central drive shaft with all parts of the ETDS mounted internal to the engine in presently unused internal spaces without requiring modifications to the existing engine. All electric power produced by the rotating reversed PMEG supplied directly to rotating engine parts requiring heat for deicing. A unique method to deice metal, composite and metal/composite fan blades is included in the invention using electricity from the reversed PMEG.
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