Dual Pleat Pack Filter for Compact Engine Oil Filtration
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Solution Overview
Problem
Current filtration devices for engine and transmission oils lack compactness and manufacturability while providing desired filtration levels.
Innovation Solution
A fluid filter design featuring a pleat pack element with a peripheral frame and internal ribs, over-molded onto filtration media, which is encapsulated within a housing structure, allowing for efficient assembly and enhanced filtration efficiency through varying media densities and pre-filtration capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional filtration devices are used, then filtration function is provided, but compactness and manufacturability are poor
Solution Approach 1:
The patent merges the pleated filtration media with the housing structure by over-molding the media directly onto the housing's peripheral frame and internal ribs. This integration eliminates separate assembly steps and reduces the number of components, thereby improving manufacturability while maintaining a compact design.
Solution Approach 2:
The pleated filtration media is nested within the housing structure, with the media conforming to the internal geometry of the housing. The media is positioned and secured within the housing cavity, allowing efficient use of space and achieving compactness without compromising filtration function.
2Strength
If filtration media is integrated into housing, then structural rigidity is improved, but manufacturing complexity increases
Solution Approach 1:
The filtration media is merged with the housing structure through over-molding, creating a unified component where the media becomes an integral part of the housing. This provides structural rigidity while the single-step over-molding process actually simplifies manufacturing compared to traditional multi-step assembly methods.
Solution Approach 2:
The housing is pre-formed with integrated frame structures and rib configurations that guide and support the filtration media during the over-molding process. This preliminary structuring ensures proper media positioning and rigidity without requiring complex post-assembly operations.
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 achieves compactness and improved manufacturability while ensuring effective filtration, with the pleat pack element forming a structural part of the filter, providing structural rigidity and preventing fluid bypass, thus enhancing filtration efficiency and compactness.
Implementation Method 1
a first pleated media or media section and a second pleated media or media section
Data Source
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AI summary
A fluid filter apparatus comprising an upper housing shell; a lower housing shell; a pleat pack element comprising a peripheral frame and a folded pleated media. The frame is at least partially molded over the media to secure the media in the frame, and the media comprises two or more types of media of different densities from each other.