Aircraft Air-Intake Water Separation Using Passive Flow Bends

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Solution Overview

Problem

The separation of water from air is challenging, particularly in environments where dry air is required, such as aboard aircraft, due to the inefficiency and high energy consumption of existing systems.

Innovation Solution

A device is provided that includes a body with an intake port, a flow path with bends, and a low-pressure tap line to separate water from air. The device utilizes the momentum of water particles to divert them into the tap line, allowing dry air to be directed to electronic components for cooling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If electricity or other power sources are used to move air through compression and evaporation cycles, then water separation effectiveness is improved, but energy consumption increases and system complexity increases

Engineering Contradiction:
Improvewater separation effectivenessVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system uses the aircraft's existing high-pressure air source and low-pressure regions to drive water separation passively. The high-pressure air from the engine intake automatically drives water particles into bends, and the low-pressure tap lines automatically drain water without requiring external power sources, motors, or controlled compression cycles.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention extracts water particles from the air stream using centrifugal force generated by bends in the flow path. Water particles are separated from air and directed into drain paths that lead to collection points or discharge locations, removing the harmful moisture component without adding energy input.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If electricity or other power sources are used to move air through compression and evaporation cycles, then water separation effectiveness is improved, but device complexity increases

Engineering Contradiction:
Improvewater separation effectivenessVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system uses the aircraft's existing high-pressure air source and low-pressure regions to drive water separation passively. The high-pressure air from the engine intake automatically drives water particles into bends, and the low-pressure tap lines automatically drain water without requiring external power sources, motors, or controlled compression cycles.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention extracts water particles from the air stream using centrifugal force generated by bends in the flow path. Water particles are separated from air and directed into drain paths that lead to collection points or discharge locations, removing the harmful moisture component without adding energy input.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If many devices are used to separate water from air, then separation capability is improved, but the systems are of relatively large scale and suitable primarily for stationary operation

Engineering Contradiction:
Improveseparation capabilityVSAvoidsystem scale
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The system integrates water separation functionality into the existing aircraft air intake and cooling infrastructure. The same flow paths used for engine cooling and electronic component cooling also perform water separation, making the system multi-functional and eliminating the need for separate dedicated water separation equipment.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention merges water separation with the aircraft's existing air handling systems. The flow paths, bends, and tap lines are integrated into the structural design of the aircraft, combining multiple functions (cooling, water separation, and air delivery) into a single unified system rather than separate components.

Inventive Principle:
Principle #5Merging (Combining)

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 device effectively separates water from air without the need for power, reducing energy consumption and maintenance requirements while providing dry air for cooling electronic components, thus enhancing the reliability and efficiency of aircraft systems.

Implementation Method 1

air and water particles enter the air intake port at a relatively high speed and pressure, where the water particles are driven into the at least one bend by the relatively high speed air

Methodology Applied
Scientific EffectMomentum: Conservation of Momentum

Implementation Method 2

a low-pressure tap line, where the low-pressure tap line defines a drain path intersecting the flow path proximate the at least one bend

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Data Source

PatentUS20250288929A1Apparatus, system, and method for separation of water from air
Publication Date: 2025.09.18 UNIV OF FLORIDA RESEARCH FOUNDATION INC
  • US20250288929A1 patent drawing
  • US20250288929A1 patent drawing
  • US20250288929A1 patent drawing

AI summary

A system, apparatus, and method are provided herein to remove water from air aboard an aircraft to permit use of dry air and discharge of water. A system for cooling electronic components of an aircraft includes: an air intake port defined in a forward facing surface of the aircraft; a flow path defined between the air intake port and an air exit port, where the flow path includes at least one bend of at least ninety degrees between the air intake port and the air exit port; and a low-pressure tap line intersecting the flow path proximate the at least one bend, where the low-pressure tap line is in fluidic communication with a water exit port defined in an upward-facing surface of the aircraft.