Filter With Integral Stepped Ledge Seal
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Solution Overview
Problem
Conventional filters require frequent replacement to prevent flow restriction, leading to increased costs and reduced performance over time.
Innovation Solution
A filter design featuring a cylindrical body with a stepped ledge for integral seal formation, where the seal is molded over the ledge to create a mechanical bond, enhancing the filter's durability and reducing the need for frequent replacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional filters are used, then filtration function is provided, but frequent replacement is required to prevent flow restriction
Solution Approach 1:
The seal is pre-formed as an integral part of the filter media during the manufacturing process, creating a mechanical bond before the filter is installed. This preliminary formation of the seal structure prevents fluid bypass and maintains filtration performance throughout the filter's service life, eliminating the need for frequent replacements.
Solution Approach 2:
The seal and filter media are merged into a single integral structure, where the seal is formed as part of the filter media itself. This combination ensures that the seal and filter media move and wear together, maintaining their functional relationship throughout the filter's lifespan and preventing performance degradation.
2Reliability
If conventional filters without integral seals are used, then manufacturing is simpler, but fluid mixing between clean and dirty sides occurs
Solution Approach 1:
The seal is merged with the filter media to form an integral structure, eliminating the need for separate seal components. This merging ensures fluid separation integrity while avoiding the complexity of assembling multiple parts, as the seal is created directly during filter media manufacturing.
Solution Approach 2:
The filter media structure itself provides the sealing function through its own material properties and geometric configuration. The filter media creates its own seal during installation through the mechanical bonding process, eliminating the need for external sealing components and simplifying the overall device structure.
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 filter design improves performance and reduces maintenance costs by extending the lifespan of the filter media and preventing fluid mixing, ensuring consistent filtration without frequent replacements.
Implementation Method 1
the seal is molded over the ledge to create a mechanical bond
Data Source
AI summary
A filter is disclosed. The filter includes a sheet of filter media defining a body having an upper portion, a lower portion, a first end surface proximate the upper portion, a second end surface proximate the lower portion, and a first side surface extending between the first and second end surfaces. One or more of the upper and lower portions define a ledge, wherein the ledge defines a third end surface arranged between the first and second end surfaces, and a second side surface extending between the first and third end surfaces; and a seal disposed upon the ledge. A method for manufacturing the seal is also disclosed.