Aircraft Hydrogen Module Exchange With Gravity-Guided Connectors
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Solution Overview
Problem
Existing aircraft propulsion systems lack efficient and sustainable energy integration, particularly in terms of energy module replacement and ground operations, which affects safety and operational efficiency.
Innovation Solution
An on-ground aircraft service system that includes a connector for removable sustainable energy modules, allowing for easy swapping of depleted energy modules with charged ones using a ground vehicle, and integrates both liquid and gaseous hydrogen vessels for propulsion and auxiliary power units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If sustainable energy modules are integrated into aircraft for improved energy source integration, then environmental sustainability is enhanced, but device complexity increases due to additional modular components and replacement mechanisms
Solution Approach 1:
The energy system is divided into modular sustainable energy modules that can be independently installed, removed, and replaced. Each module contains its own energy storage and conversion components, allowing the aircraft to be segmented into functional units that can be serviced separately without affecting the entire propulsion system.
Solution Approach 2:
The sustainable energy modules are designed with universal interfaces and standardized mounting mechanisms that allow them to be used across different aircraft types. The modules can serve multiple functions including energy storage, power generation, and act as ballast, reducing the need for separate specialized components.
2Productivity
If energy modules are designed for quick swapping to reduce time on ground, then operational efficiency is improved, but reliability may worsen due to repeated connection and disconnection cycles
Solution Approach 1:
Spare energy modules are pre-charged and prepared on the ground before flight operations. The replacement process is pre-planned with standardized procedures, allowing modules to be swapped quickly during maintenance periods without requiring complex on-site recharging or calibration operations.
Solution Approach 2:
The connector design incorporates multiple engagement points and alignment features that distribute mechanical stress during connection and disconnection. Redundant locking mechanisms and protective shielding are built in to prevent damage from repeated cycling, ensuring reliable connections even after numerous replacement cycles.
3Ease of operation
If connectors are designed for easy module removal through gravity alone, then ease of operation is improved, but manufacturing precision requirements worsen due to tight tolerance needs for gravity-dependent engagement
Solution Approach 1:
The connector and receptacle are designed with self-aligning features that create a natural equilibrium position during engagement. The geometry of the mating surfaces is configured so that gravitational force naturally guides the module into proper alignment, eliminating the need for complex alignment mechanisms or high-precision manual positioning.
Solution Approach 2:
The module replacement system is designed to be self-aligning and self-locking through gravity-assisted engagement. The connector features automatic alignment guides and snap-fit mechanisms that engage passively when the module is lowered into place, requiring no active alignment procedures or precision adjustments by operators.
4Use of energy by moving object
If hydrogen vessels are integrated for sustainable propulsion, then energy density is improved, but safety concerns worsen due to handling and storage requirements of compressed or liquid hydrogen
Solution Approach 1:
The hydrogen storage vessels are nested within the modular energy module structure, which provides multiple layers of protection. The vessels are positioned within reinforced compartments that contain potential leaks or failures, and the modular design allows the entire module to be quickly removed and replaced if safety issues arise, preventing ground personnel from prolonged exposure to hydrogen hazards.
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
Enhances operational efficiency by reducing time on ground and maintenance difficulties through quick energy module swapping, promoting sustainable energy use and improving safety with efficient energy transfer and conversion systems.
Implementation Method 1
The first sustainable energy module may include a vessel containing compressed hydrogen. The first sustainable energy module may include a vessel containing liquid hydrogen.
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
An on-ground aircraft service system (1500) includes an aircraft (1570) including a first sustainable energy module and a repository (1502) including a second sustainable energy module for replacing the first sustainable energy module when the first sustainable energy module is depleted. The aircraft includes a connector operable between an engaged mode operatively connecting the first sustainable energy module to a rest of the aircraft, and a disengaged mode operatively disconnecting the first sustainable energy module from the rest of the aircraft.