Lever Quick Connect Fitting for Aerospace Tank Seals
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Solution Overview
Problem
Current tank-to-tank connection systems in the aerospace field require lengthy assembly processes, risk damage to tanks, and suffer from variability due to operator dependence and clamping force, leading to potential leaks and maintenance issues.
Innovation Solution
A lever quick connect and disconnect fitting with two independent locking features, utilizing a blade spring and safety ring for secure, tool-free operation, ensuring reliable and leak-proof connections between flexible material tanks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal clamps are secured via screwdriver, then the connection between tanks is achieved, but the assembly process takes a long time (around fifteen minutes) and risks damaging the tanks or flexible chimneys
Solution Approach 1:
The patent replaces the screwdriver-based mechanical fastening system with a lever-based quick-connect mechanism. The lever applies mechanical force to clamp the flexible chimney to the rigid sleeve without requiring rotational screwing motions, thereby eliminating the need for screwdrivers and significantly reducing assembly time while maintaining secure connections.
Solution Approach 2:
The lever mechanism is designed to be self-contained and self-operating. Once the lever is engaged, it automatically maintains the clamping force through its mechanical design, eliminating the need for continuous operator intervention or additional tools during the assembly process.
2Reliability
If metal clamps are secured via screwdriver, then the connection is achieved, but operator competence and strength create variability in assembly quality
Solution Approach 1:
The lever mechanism is designed to be self-contained and self-operating. Once the lever is engaged, it automatically maintains the clamping force through its mechanical design, eliminating the need for continuous operator intervention or additional tools during the assembly process.
Solution Approach 2:
The patent changes the operational parameter from requiring variable operator strength and skill (screwdriver tightening) to a standardized lever engagement motion. This parameter change ensures that any operator can achieve consistent clamping force through the same simple motion, eliminating variability caused by differences in operator competence and strength.
3Reliability
If tanks are fixed by screwing, then connection is achieved, but clamping force decreases over time and flexible chimneys can become stuck together
Solution Approach 1:
The patent replaces the screw-based mechanical fastening system with a lever-based quick-connect mechanism. The lever applies mechanical force to clamp the flexible chimney to the rigid sleeve without requiring rotational screwing motions, thereby eliminating the need for screwdrivers and significantly reducing assembly time while maintaining secure connections.
Solution Approach 2:
The lever mechanism incorporates dynamic elements that allow for easy adjustment and maintenance of clamping force over time. The lever can be readily repositioned or adjusted to maintain optimal connection strength, preventing the chimneys from becoming stuck while ensuring long-term connection durability.
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
Facilitates rapid, secure, and reliable tank-to-tank connections that reduce the risk of damage and operator variability, maintaining a consistent seal over time and simplifying maintenance.
Implementation Method 1
Levers secured by a blade spring provide a first locking feature
Implementation Method 2
a safety ring provides a second locking feature
Data Source
AI summary
Embodiments of the present invention provide a lever quick connect and disconnect fitting that provides a secure fit for tank-to-tank connections and prevents any leakage from occurring. The fitting provide two separate, independent locking features that can secure tank sleeves to one another. There is provided male and female components that are coupled together by a lever connect and by a safety ring.