Tapered Gasket Loop for Pressurized Fluid Sealing
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Solution Overview
Problem
In pressurized fluid joints, existing gaskets face challenges in sealing due to large gap variations between mating components, leading to either excessive stress or inadequate sealing pressure, which can result in fluid leakage and functional failures.
Innovation Solution
A gasket loop with a specific cross-sectional shape, featuring a tapered backside and spherical ends, is designed to provide a reliable seal by compressing elastically within a channel, ensuring effective contact and retention even with varying component sizes, and can be formed from chemically resistant materials like rubber or silicone, potentially configured as multiple interconnected O-rings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional gasket is used in pressurized joints with large gap variations, then the gasket must be made thicker to accommodate the gaps, but this leads to excessive stress on the gasket and components
Solution Approach 1:
The gasket cross-section is designed with a tapered backside that allows the gasket to deform dynamically under compression, adapting to gap variations while maintaining controlled stress distribution. The non-uniform cross-sectional shape enables the gasket to compress preferentially in specific zones, accommodating dimensional variations without transmitting excessive stress to the components.
Solution Approach 2:
The gasket cross-sectional dimensions are varied along its length, with the backside being tapered rather than uniform. This parameter change allows the gasket to provide different compression characteristics at different locations, maintaining sealing effectiveness while limiting maximum stress levels to permissible values.
2Reliability
If a conventional gasket is used in pressurized joints with large gap variations, then the gasket must be made thicker to accommodate the gaps, but this leads to inadequate sealing pressure distribution
Solution Approach 1:
The gasket cross-section is designed with non-uniform properties, featuring a tapered backside that creates different compression characteristics at different locations. This local quality variation ensures that sealing pressure is distributed appropriately across the sealing interface, with higher pressure where needed and reduced pressure where gap variations exist, achieving uniform sealing performance.
3Adaptability or versatility
If a gasket with tapered backside and spherical ends is used, then the gasket can accommodate large gap variations and maintain permissible compression levels, but the gasket design becomes more complex
Solution Approach 1:
The gasket is designed as a flexible elastic member with a specific cross-sectional shape that allows it to conform to mating surfaces with large gap variations. The flexible nature of the gasket material combined with its optimized cross-sectional geometry enables it to adapt to dimensional variations without requiring complex adjustment mechanisms or multiple gasket sizes.
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 gasket loop effectively seals fluid-pressure joints by maintaining compression within permissible limits, preventing leakage and ensuring reliable fluid retention across a range of manufacturing tolerances, thus enhancing the reliability and performance of pressurized systems.
Implementation Method 1
A gasket loop with a specific cross-sectional shape, featuring a tapered backside and spherical ends, is designed to provide a reliable seal by compressing elastically within a channel
Data Source
AI summary
A gasket loop includes a gasket shape with a first portion characterized by a cross-sectional view. The first portion in the cross-sectional view includes a substantially elongated body characterized by a height, a first end characterized by a height, a tip, a width enlarged relative to the body, and a tapered backside. The tapered backside is integral with the body. The first portion in the cross-sectional view additionally includes a distal second end connected to the body. A fluid-pressure joint assembly and a method of sealing such a joint via the gasket loop are also disclosed.