Integrated Aviation Garment Bladder Layer for G-Force and Thermal Management
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Solution Overview
Problem
Current protective garments for crewmembers during aircraft flight are cumbersome, uncomfortable, and lack efficient heat dissipation and urination facilities, leading to dehydration risks due to the bulkiness and separate layers that inhibit perspiration evaporation and require compromising restraints for urination.
Innovation Solution
A single aviation garment integrating a bladder layer for pressurized fluid retention and G-force protection, a fire-retardant cover layer, and a urine evacuation system, with adjustable seals and a liquid cooling layer for comfort and safety, allowing for pressurization and cooling without the need for multiple separate garments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate garments (pressure garment, coverall, liquid cooling garment) are worn together, then protection against G-force, external hazards, and heat is provided, but the suit creates bulk, weight, and discomfort that inhibit perspiration evaporation and make urination difficult
Solution Approach 1:
The patent combines multiple separate protective garments (pressure garment, coverall, liquid cooling garment) into a single integrated aviation garment. The bladder layer provides pressure for G-force protection, the cover layer provides fire and environmental protection, and the liquid cooling system is integrated within the same garment structure, eliminating the need to wear multiple separate layers while maintaining all protective functions
Solution Approach 2:
The integrated aviation garment performs multiple functions simultaneously: the bladder layer provides both G-force protection through pressurization and serves as a barrier for environmental protection, the cover layer provides fire protection and structural support, and the liquid cooling system provides thermal regulation. This multi-functional design eliminates the need for separate specialized garments
2Reliability
If multiple separate layers are used to provide comprehensive protection, then safety against various hazards is improved, but heat dissipation becomes difficult and thermal burden increases
Solution Approach 1:
The bladder layer is constructed from a porous fire-retardant fabric that allows perspiration vapor to pass through while maintaining structural integrity and fire protection. This porosity enables heat dissipation and moisture evaporation despite the presence of multiple protective layers, reducing thermal burden while maintaining safety
Solution Approach 2:
The garment uses composite material construction with the bladder layer made from fire-retardant fabric and the cover layer from durable outer material. This composite structure provides both protection and breathability, allowing heat dissipation while maintaining safety standards
3Adaptability or versatility
If traditional separate garments are used, then each garment can be optimized for its specific function, but the overall suit becomes cumbersome and requires compromising restraints for urination
Solution Approach 1:
The patent merges the pressure garment, coverall, and liquid cooling garment into a single integrated structure where the bladder layer and cover layer form one cohesive garment. This reduces structural complexity while maintaining functional optimization through the specialized properties of each layer
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 integrated garment provides effective G-force protection, comfort, and urination facilities while reducing bulk and thermal burden, ensuring user safety and comfort by combining multiple functions into a single, breathable, and efficient suit.
Implementation Method 1
A bladder layer is configured to retain a first pressurized fluid and apply pressure to the user
Implementation Method 2
the bladder layer being a semi-permeable layer which is impermeable to both oxygen and nitrogen and permeable to water vapor
Implementation Method 3
additional garments are sometimes worn to provide liquid cooling to the user for comfort, or even safety
Data Source
AI summary
A protective aviation garment is designed to protect a crewmember during flight. The garment includes a bladder layer which retains a pressurized fluid and applies pressure to the user. The bladder layer is semi-permeable, being impermeable to both oxygen and nitrogen and permeable to water vapor. A first fluid tube is formed as part of the bladder layer to deliver the pressurized fluid to the interior of the bladder layer. A cover layer is formed from a fire-retardant fabric surrounding the exterior of the bladder layer. The cover layer is sealed around the first fluid tube and allows the first fluid tube to pass therethrough. The thigh seals are configured to seal the bladder layer to the user such that the bladder layer forms a lower volume and an upper volume. The first fluid tube delivers the first pressurized fluid to the lower volume.