Integrated Filter Endcap Seal for Leak-Resistant Canister Filtration
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Solution Overview
Problem
Existing canister style filter systems experience leakage issues due to the use of separate seals like O-rings, which are prone to leaks, despite solutions such as wing nuts and axial sealing gaskets.
Innovation Solution
Integration of a seal member with the filter element, featuring a sealing portion and a connecting portion with flow passages, providing sealing redundancy and allowing fluid to flow through apertures for filtration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate O-ring seal is used between the base and canister, then the filter system can be assembled with simple components, but leakage occurs at the seal interface
Solution Approach 1:
The seal member is integrated directly into the filter element structure, merging the sealing function with the filter element itself. The seal member includes a sealing portion with sealing surfaces that contact the base and canister, eliminating the need for separate O-rings and wing nuts while preventing leakage at the seal interface.
2Reliability
If multiple separate seals and fastening components are used, then sealing coverage can be extended, but assembly complexity increases
Solution Approach 1:
The filter element is designed as an integrated assembly where the seal member is directly attached to the filter element body. This single integrated component provides comprehensive sealing coverage at both the base interface and canister interface, eliminating the need for multiple separate seals and simplifying assembly operations.
3Force
If wing nuts are used to secure the housing to the base, then the necessary sealing force can be applied, but the device complexity and difficulty of operation increase
Solution Approach 1:
The wing nuts and separate fastening mechanism are completely removed from the system. The integrated seal member is designed to be secured directly to the filter element without requiring external fasteners, eliminating the complexity of wing nut installation and removal while maintaining the necessary sealing force through the integrated structure.
Data Source
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AI summary
An integrated seal member (300a) includes an at least partially annular body defining a longitudinal axis (216a), a radial direction (218a), and a circumferential direction (217). The at least partially annular body includes a top annular mounting portion (324c), a sealing portion (302a) including at least one top sealing feature (343) and at least one bottom sealing feature (336), and a connecting portion (318a) that extends at least radially outwardly from the top annular mounting portion (324c) to the sealing portion (302a).