Semicorrugated Elastomer Gasket for Material Reduction
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Solution Overview
Problem
Existing elastomer seals with fixed geometry face challenges in reducing material volume without compromising sealing capacity and stability, as reducing height leads to compression loss and reducing width causes instability and buckling.
Innovation Solution
A semi-corrugated elastomer seal with a continuously variable geometry cross-section, incorporating linear and corrugated portions that allow for reduced material usage while maintaining stability and compressive force distribution, thereby preserving sealing capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the height of the gasket is reduced to lower material volume, then material cost decreases, but compression is lost and sealing capacity is reduced
Solution Approach 1:
The gasket is divided into multiple sections along its length, with each section having a different height. This segmentation allows the gasket to use less material overall while maintaining sufficient compression and sealing capacity in critical areas where higher sections are positioned.
2Quantity of substance
If the width of the gasket section is reduced to lower material volume, then material cost decreases, but instability and buckling occur
Solution Approach 1:
The gasket width is segmented into different sections along its length. Certain sections maintain sufficient width to provide stability and prevent buckling, while other sections can be narrower to reduce material usage. This selective width variation resolves the contradiction between material reduction and structural stability.
3Reliability
If specific shapes are added locally to generate retaining force and maintain compressive force distribution, then sealing performance is improved, but the section size becomes large and material gain is insignificant
Solution Approach 1:
Instead of adding large specific shapes throughout the gasket, the invention applies local quality by varying the height and width of the gasket at specific locations where sealing performance is most critical. This approach maintains effective sealing while using less material overall, as the increased section dimensions are applied only where necessary rather than uniformly across the entire gasket.
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 design achieves a 30% reduction in material usage while ensuring stability and effective compressive force absorption, maintaining sealing performance and adaptability to varying pressures.
Implementation Method 1
an elastomer seal having a length following a contour and a cross-section of width and height taken in a transverse plane perpendicular to said length
Data Source
Figure 1~2
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Figure 7~10
AI summary
The invention relates to an elastomer sealing gasket (10) having a length (L) along a contour (C) and a cross section (S) of width (I) and of height (H) considered in a transverse plane (T) perpendicular to said length (L), characterized in that the cross section (S) has a geometry that is continuously varying along the length (L) of the gasket.