Potted Gasket End Cap Assembly for Leak-Safe Filter Replacement
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Solution Overview
Problem
Existing fluid filters face challenges in maintaining effective sealing during filter element replacement, leading to potential damage from unfiltered fluid bypassing the filter medium, which can harm engine components.
Innovation Solution
A filter element design featuring a gasket encapsulated within an end cap assembly, comprising a toroidal-shaped gasket with concentric members and arms, integrated with a solid setting resin end cap, providing a hermetic seal between the filter medium and the filter system components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive is used to attach the gasket to the end cap, then the gasket can be secured to the end cap, but the adhesive may leak through the filter element and contaminate the filtered fluid
Solution Approach 1:
The patent introduces an intermediary structure (the recessed channel or moat) between the adhesive and the filtered fluid path. This intermediary feature contains the adhesive within a designated area, preventing it from leaking through the filter element while still allowing the adhesive to perform its bonding function between the gasket and end cap.
Solution Approach 2:
The patent segments the end cap surface into distinct functional zones: a gasket attachment area with recessed channels for adhesive application, and a filtered fluid passage area that remains free of adhesive contamination. This segmentation is achieved through the recessed channel structure that physically separates adhesive placement from the fluid flow path.
2Ease of manufacture
If the filter element structure is simplified, then manufacturing cost decreases, but the filter element may not effectively prevent adhesive leakage
Solution Approach 1:
The patent merges the adhesive containment function with the existing end cap structure by forming recessed channels directly into the end cap body during manufacturing. This integration eliminates the need for separate adhesive containment components while maintaining effective prevention of adhesive leakage, thus combining structural support and contamination prevention in a single manufactured part.
Data Source
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AI summary
The present disclosure relates to a filter element for use in a fluid filter system is disclosed herein. The filter element comprises a filter medium having a longitudinal axis between a first end and a second end, and an end cap assembly attached to the first end of the filter medium. The end cap assembly includes a first end cap aligned with the longitudinal axis and proximate to the first end of the filter medium; a first member concentric with and disposed radially apart from the first end cap and the filter medium and axially between the first end cap and the second end of the filter medium; and a plurality of arms connecting the first end cap with the first member, each arm configured to align the filter element with respect to the container and base plate by absorbing alignment discrepancies between at least the base plate and container.