Filter Device Gasket Assembly for Transition-Point Sealing
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Solution Overview
Problem
Existing filter devices face challenges in effectively sealing transition areas between filter elements and mounting elements, leading to potential leaks and reduced reliability due to uneven surfaces and the difficulty in applying gaskets at these critical points.
Innovation Solution
A gasket assembly with a pressure means, such as a bulge or rib, is integrated into the first filter element to enhance the compression at transition points, using a softer silicone gasket for the first filter element and a more solid EPDM rubber gasket for the second filter element, ensuring secure sealing and reduced slippage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standard gasket is used at transition points, then the gasket assembly is simple, but the sealing reliability deteriorates due to uneven surfaces and difficulty in applying the gasket
Solution Approach 1:
The gasket assembly incorporates a localized pressure means (protrusion) at the transition point area, creating non-uniform pressure distribution where extra compression is applied exactly where needed. This local enhancement ensures reliable sealing at the critical transition point without requiring complex modifications throughout the entire gasket assembly.
Solution Approach 2:
The pressure means is pre-formed as an integral part of the first filter element structure, positioned to automatically apply additional compression to the gasket at the transition point during assembly. This preliminary structural feature ensures proper sealing action occurs immediately upon assembly without requiring additional adjustment or complex mechanisms.
2Reliability
If additional pressure is applied at transition points, then sealing tightness improves, but the risk of gasket damage increases
Solution Approach 1:
The pressure means creates localized high pressure only at the transition point area where sealing is most critical, while maintaining normal pressure elsewhere on the gasket. This spatially differentiated pressure distribution ensures tight sealing at the vulnerability point without subjecting the entire gasket to excessive compression that could cause damage.
Solution Approach 2:
The pressure means modifies the pressure parameter locally at the transition point, creating a pressure gradient across the gasket assembly. The protrusion geometry and material properties are designed to provide the optimal balance between achieving sufficient compression for tight sealing and avoiding excessive pressure that would damage the 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 enhanced gasket assembly provides improved sealing at transition points, reducing leaks and ensuring the reliability of the filter device by maintaining tightness and stability, while also offering cost savings through integrated design and material selection.
Implementation Method 1
the pressure means is a kind of stress concentrator for the gasket, which concentrates or rises the local stress on the pressing surface of the gasket
Implementation Method 2
using a softer silicone gasket for the first filter element
Implementation Method 3
a more solid EPDM rubber gasket for the second filter element
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to a gasket assembly for filter devices comprising a mounting element, at least one first filter element, at least one second filter element arranged adjacent to the first filter element, and a first gasket being pressed against the mounting element and the second filter element by means of the first filter element, wherein a pressure means is provided that is intended to additionally press the transition point between the mounting element and the second filter element.