Filter Element Sealing Structure for Leak-Free Reassembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing filter elements lack a reliable mechanism to prevent fluid from flowing into the underlying system during reassembly, necessitating complex key and keyway systems that are not always effective.
Innovation Solution
A filter assembly design featuring a ring of filter media, end caps with seals and a stepped ledge, allowing for fluid control through the interaction of seals and a standpipe valve assembly, ensuring fluid flow is restricted until complete reassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a key and keyway system is used to activate the standpipe, then fluid flow control during reassembly is improved, but device complexity increases
Solution Approach 1:
The patent removes the complex key and keyway system from the filter element design. Instead, it uses a simplified end cap structure with sealing surfaces and a standpipe activation feature that relies on direct mechanical engagement and sealing, eliminating unnecessary components while maintaining reliable fluid flow control during reassembly
Solution Approach 2:
The patent introduces a sealed cavity and sealing surfaces as intermediaries between the end cap and standpipe. These sealing surfaces create a fluid-tight barrier that controls fluid flow during reassembly, replacing the need for complex mechanical key systems while ensuring reliable activation of the standpipe
2Ease of operation
If the filter element is designed with simple reassembly, then ease of operation is improved, but reliability of fluid containment deteriorates
Solution Approach 1:
The patent incorporates pre-designed sealing surfaces and a sealed cavity structure in the end cap before assembly. These features are built-in to automatically ensure fluid containment when the filter element is reassembled, eliminating the need for complex procedures while maintaining reliable sealing
Solution Approach 2:
The end cap structure with its integrated sealing surfaces and sealed cavity automatically ensures fluid containment during reassembly. The design self-regulates to prevent fluid leakage through the standpipe activation feature without requiring additional complex mechanisms or procedures
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 design ensures secure fluid containment during reassembly, enhancing reliability and simplifying the process by eliminating the need for complex key and keyway systems.
Implementation Method 1
The radially extending surface is configured to engage a radially extending surface of a standpipe valve assembly and the axially extending surface is configured to engage an axially extending surface of a lock member
Data Source
AI summary
A filter assembly includes a ring of filter media, a first end cap, a second end cap, a first seal, and a second seal. The first end cap is coupled to a first end of the filter media. The second end cap is coupled to a second end of the filter media and includes (i) a radially extending portion having a first opening and (ii) a first axially extending portion having a stepped ledge defining a first inner diameter. The first seal is supported by the second end cap and includes a second opening defining a second inner diameter that is less than the first inner diameter. The second seal is supported by the second end cap and includes a third opening defining a third inner diameter that is greater than the first and second inner diameters. The stepped ledge is disposed between the first seal and the second seal.