Braided Cable Bonding Wire Attachment for Aircraft Fuel Pipes
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Solution Overview
Problem
Conventional bonding wire solutions for aircraft fuel pipes are cumbersome, adding bulk and weight due to composite layers and resulting in an unattractive appearance, while failing to provide a neat and efficient installation process.
Innovation Solution
A braided conductive cable with connectors at both ends is tightly wound around the pipe body, with ends passing through a conductive tab and secured by crimps, allowing for tension-based attachment and potential redundancy, using existing aerospace-approved materials like stainless steel cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bonding wire attachment using composite layers and curing is used, then the bonding wire is secured to the pipe, but the pipe becomes bulky and heavy with unattractive appearance
Solution Approach 1:
The patent extracts and removes the unnecessary composite layers and resin compounds from the bonding wire attachment process. The bonding wire is directly attached to the pipe surface using a simplified method that eliminates the bulky composite material, thereby reducing weight while maintaining attachment reliability.
Solution Approach 2:
The patent changes the attachment method from a multi-layer composite structure to a direct attachment method. This parameter change in the attachment process eliminates the need for curing and multiple layers, directly reducing the weight and simplifying the structure while maintaining bonding effectiveness.
2Reliability
If conventional bonding wire attachment using composite layers and curing is used, then the bonding wire is secured to the pipe, but the installation process becomes unwieldy and complex
Solution Approach 1:
The patent extracts and removes the complex steps of applying composite layers, winding, and curing from the attachment process. The simplified method directly attaches the bonding wire to the pipe, eliminating unnecessary process steps and reducing overall complexity while maintaining secure attachment.
Solution Approach 2:
The bonding wire attachment method is designed to be self-securing through the direct attachment mechanism, eliminating the need for external curing processes or multiple securing layers. The system attaches itself in a single straightforward step, reducing process complexity.
3Reliability
If conventional bonding wire attachment using composite layers and curing is used, then the bonding wire is secured to the pipe, but additional size and weight are added to the pipe
Solution Approach 1:
The patent extracts and removes the volume-consuming composite layers and resin compounds from the attachment system. The bonding wire is attached directly to the pipe surface without adding bulky material, thereby maintaining attachment reliability while minimizing additional volume.
4Reliability
If conventional bonding wire attachment using composite layers and curing is used, then the bonding wire is secured to the pipe, but the pipe appearance becomes unattractive
Solution Approach 1:
The patent extracts and removes the unsightly composite layers and resin compounds that mar the pipe appearance. The direct attachment method allows the bonding wire to be neatly secured to the pipe surface, maintaining a clean and professional appearance while ensuring reliable attachment.
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
This method provides a quicker, neater, and lighter bonding solution that maintains electrical conductivity while reducing size and weight, suitable for aerospace and other applications, with the option for additional coatings for enhanced performance.
Implementation Method 1
the bonding wire being tightly wound around the pipe body... the bonding wire held under tension around the pipe body by a crimp around the two end portions
Implementation Method 2
tightly wound around the pipe body... wrapped tightly around the pipe body
Implementation Method 3
a crimp around the two end portions where they pass through the hole
Implementation Method 4
bonding leads or wires are made of highly conductive material to discharge electricity
Data Source
AI summary
A bonding wire conductively connected to a pipe having a pipe body and a conductive tab mounted to the pipe and having a hole therein, the bonding wire being in the form of a braided conductive cable provided with a connector at each of its ends, the bonding wire being tightly wound around the pipe body and the ends both passing through the hole in the connector such that the ends of the bonding wire extend away from the pipe body after passing through the hole, while a portion of the bonding wire between the end portions is wrapped tightly around the pipe body; the bonding wire held under tension around the pipe body by a crimp around the two end portions where they pass through the hole.