Fuel Cell ECS Assembly for Remote Aircraft Power Supply

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Solution Overview

Problem

Supplying power to environmental control systems (ECS) in aircraft can be burdensome, particularly for certain ECS locations, necessitating improved power provision.

Innovation Solution

Integrating a fuel cell assembly within the ECS that utilizes cabin exhaust airflow to generate electric power, eliminating the need for external power sources and reducing the need for airflow pre-conditioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If power is supplied to ECS from external sources or heavy power buses, then ECS can operate reliably, but the system becomes complex and difficult to place remotely

Engineering Contradiction:
ImproveECS power supply reliabilityVSAvoidpower bus complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The fuel cell assembly is integrated directly into the ECS unit, combining power generation and environmental control functions in a single location. This eliminates the need for separate power buses and external power sources, reducing system complexity while enabling remote placement of ECS units throughout the aircraft cabin.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The ECS unit generates its own power through the fuel cell assembly, which converts chemical energy from fuel (such as hydrogen or hydrocarbon) directly into electrical energy. This self-powered operation eliminates dependence on external power sources and heavy power distribution infrastructure, allowing flexible remote installation.

Inventive Principle:
Principle #25Self-service

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

The fuel cell assembly efficiently generates sufficient power for ECS operations, reducing energy consumption and enabling remote placement of ECS units without heavy, complex power buses.

Implementation Method 1

the fuel cell assembly is in electrical communication with the environmental control system for providing electrical power to the environmental control system

Methodology Applied
Scientific EffectFuel cell electrochemical conversion: Fuel Cell

Implementation Method 2

a fuel cell assembly in airflow communication with the cabin exhaust delivery system for receiving the cabin exhaust airflow

Methodology Applied
Scientific EffectOxygen reduction reaction: Fuel Cell

Data Source

PatentUS12412914B2Environmental control system having a fuel cell assembly
Publication Date: 2025.09.09 GENERAL ELECTRIC CO
  • US12412914B2 patent drawing
  • US12412914B2 patent drawing
  • US12412914B2 patent drawing

AI summary

An environmental control system assembly for an aircraft is provided. The assembly includes: an environmental control system; a fuel cell assembly in electrical communication with the environmental control system for providing electrical power to the environmental control system; and a controller operably connected to the fuel cell assembly, the controller operable to modulate an amount of power generated by the fuel cell assembly and provided to the environmental control system based on load forecasting data from an ECS load forecasting module of the controller.