Integrated Thermal Emitters for Chemical-Free Aircraft Deicing

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Solution Overview

Problem

Current aircraft deicing methods using chemical liquids are time-consuming, labor-intensive, costly, and environmentally unfriendly, with ice often re-forming after application, necessitating improved and efficient deicing solutions.

Innovation Solution

Integration of thermal emitters on aircraft external structures, powered by the aircraft's auxiliary power unit, power distribution system, or external power cart, to generate heat and melt ice without chemicals, with optimized grid patterns and control units for efficient energy use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If chemical deicing liquid is applied to aircraft surfaces, then ice is removed from the surfaces, but the process becomes time-consuming and labor-intensive

Engineering Contradiction:

Improvedeicing effectivenessVSAvoiddeicing process time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces the chemical deicing system with an electrical heating system. Thermal emitters integrated into the aircraft skin generate heat directly at the surface to prevent and remove ice accumulation, eliminating the need for chemical liquids and manual application processes.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The aircraft's own electrical power system is used to operate the thermal emitters, allowing the aircraft to deice itself without external service equipment. The system can be activated automatically or manually using the aircraft's existing power distribution infrastructure.

Inventive Principle:

Principle #25Self-service

2Reliability

If chemical deicing liquid is used, then ice is melted on aircraft surfaces, but material costs and environmental impact increase

Engineering Contradiction:

Improveice removal capabilityVSAvoiddeicing liquid consumption

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The chemical deicing system is replaced with an electrical-thermal system. Thermal emitters convert electrical energy directly into heat to prevent and remove ice, eliminating consumption of chemical deicing liquids and associated disposal requirements.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If deicing liquid is applied to aircraft, then ice protection is achieved, but equipment and material costs increase

Engineering Contradiction:

Improveice protectionVSAvoiddeicing equipment requirements

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The thermal emitter system utilizes the aircraft's existing electrical power infrastructure, including power distribution systems and onboard generators, to operate the deicing function. This eliminates the need for separate, dedicated deicing equipment and leverages existing aircraft systems.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The aircraft uses its own integrated electrical and thermal systems to perform deicing, eliminating dependence on external ground equipment and reducing overall system complexity.

Inventive Principle:

Principle #25Self-service

4Reliability

If thermal emitters are integrated with aircraft external structures, then deicing capability is provided, but aircraft weight increases

Engineering Contradiction:

Improvedeicing functionalityVSAvoidaircraft weight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The thermal emitters are implemented as thin, flexible heating elements integrated into the aircraft skin structure. This minimizes the added weight while maintaining effective heat generation capability across the aircraft surfaces.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The system provides controllable thermal output through variable electrical power input, allowing optimization of heating intensity based on actual ice accumulation conditions, thereby reducing overall energy consumption and associated system weight.

Inventive Principle:

Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Provides effective, efficient, and cost-effective deicing by melting ice on aircraft surfaces while reducing weight and environmental impact, allowing deicing during stationary, taxiing, or airborne operations.

Implementation Method 1

The one or more thermal emitters are configured to generate heat to deice the one or more external structures

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Implementation Method 2

The one or more thermal emitters are configured to generate heat to deice the one or more external structures

Methodology Applied

Scientific EffectThermal radiation: Thermal Radiation

Data Source

PatentUS12391389B2Systems and methods for deicing aircraft

Publication Date: 2025.08.19 THE BOEING CO

AI summary

An aircraft includes external structures, and one or more thermal emitters integrated with one or more of the external structures. The one or more thermal emitters are configured to generate heat to deice the one or more external structures. The one or more thermal emitters are configured to receive electrical power from one or more of an auxiliary power unit of the aircraft, a power distribution system of the aircraft, one or more engines of the aircraft, or an external power cart that is separate and distinct from the aircraft.