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US 11,235,881 B2Granted
Hybrid heater for aircraft wing ice protection
AssigneeGoodrich Corporation
InventorsRobin Jacob, Guru Prasad Mahapatra
Life of this patent
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Abstract
A hybrid heater system for aircraft wing ice protection is provided. The hybrid heater system includes a voltage source, a carbon nano-tube (CNT) heater, a first positive temperature coefficient (PTC) heater disposed in parallel with the CNT heater to form a parallel formation and a second PTC heater disposed in series between the voltage source and the parallel formation.
Claims12
A hybrid heater system for aircraft wing ice protection, the hybrid heater system comprising:
- a voltage source;
- a carbon nano-tube (CNT) heater;
- a first positive temperature coefficient (PTC) heater disposed in parallel with the CNT heater to form a parallel formation;
- a second PTC heater disposed in series between the voltage source and the parallel formation;
- and
- an aircraft wing in which the CNT heater and the first and second PTC heaters are layered,
- wherein the CNT heater and the first PTC heater occupy a same layer in the aircraft wing.
4 more elements
A hybrid heater system for ice protection of an aircraft wing, the hybrid heater system comprising:
- a voltage source;
- a carbon nano-tube (CNT) heater comprising CNT heater elements;
- a first positive temperature coefficient (PTC) heater disposed in parallel with the CNT heater to form a parallel formation,
- the first PTC heater comprising first PTC heater elements interleaved with the CNT heater elements in a first aircraft wing layer;
- and
- a second PTC heater disposed in a second aircraft wing layer and in series between the voltage source and the parallel formation.
3 more elements
Dependencies are inferred from the claim text.