Reinforced Annular Gasket Structure for Compression Variation
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Solution Overview
Problem
Conventional gaskets face durability issues due to excessive compression caused by variations in accommodating part depth, leading to inconsistent compression widths.
Innovation Solution
A gasket design featuring an annular reinforcing ring embedded in an elastic base with integrated seal lips, where the reinforcing ring is buried in the middle of the base and the seal lips extend inwardly on both sides, ensuring a wider radial width sum than the base thickness, and includes reinforcing-ring hold-down holes and outer peripheral lips for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the depth of the accommodating part decreases due to manufacturing variation, then the gasket is excessively compressed, but this leads to reduced durability and increased compression width variation
Solution Approach 1:
The patent changes the geometric parameters of the gasket by making the sum of the base width and seal lip width greater than the base thickness. This parameter relationship ensures that even when compression width varies due to manufacturing tolerances in accommodating part depth, the gasket maintains consistent compression characteristics and durability.
2Adaptability or versatility
If the width by which the gasket is compressed increases to accommodate depth variation, then the gasket can fit deeper accommodating parts, but this causes excessive compression and reduces durability
Solution Approach 1:
The patent establishes a specific parameter relationship where the sum of base width and seal lip width exceeds base thickness. This ensures that the gasket maintains appropriate compression characteristics across varying accommodating part depths, preventing both excessive compression and inadequate sealing.
3Ease of manufacture
If the gasket structure is simplified without the reinforcing ring, then manufacturing becomes easier, but the gasket cannot withstand high fluid pressure and distorts
Solution Approach 1:
The patent creates a composite structure by embedding a reinforcing ring within the elastic base material. This combination provides both the strength needed to resist high fluid pressure and maintain dimensional stability, and the elasticity needed for effective sealing, while remaining manufacturable through integral molding processes.
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 design enhances durability by reducing compression width variation and maintaining sealing performance even under excessive compression, while preventing distortion and damage from high fluid pressure.
Implementation Method 1
an annular base that is formed around the axis and that is formed from an elastic body into which the reinforcing ring is embedded
Data Source
AI summary
A gasket includes an annular reinforcing ring formed around an axis, an annular base that is formed around the axis and that is formed from an elastic body into which the reinforcing ring is embedded, and an annular seal lip formed around the axis. The annular seal lip is disposed on an inner periphery side of the base and is integrated with the base. The seal lip includes one lip portion extending to the inner periphery side as progress toward one side in a direction of the axis and another seal lip portion extending to the inner periphery side as progress toward another side in the axis direction. A sum of a width of the base in a radial direction and a width of the seal lip in the radial direction is greater than a thickness of the base in the axis direction.