Filter Element Triangular Support Structure Tilting Prevention
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Solution Overview
Problem
Existing filter elements for internal combustion engines face challenges in secure and space-efficient retention and positioning within filter housings, particularly for large, bulky, or heavy filter elements with deep pleats and variable pleat heights, which can lead to tilting and interference with fluid flow.
Innovation Solution
The filter element incorporates at least one triangular support structure with outer and central support sections that protrude beyond the filter bellows, allowing secure axial alignment and prevention of tilting, while maintaining a compact design and minimizing interference with fluid flow passages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If filter elements are made large and bulky with deep pleats to increase filtering capacity, then filtering performance is improved, but retention and positioning stability in the filter housing deteriorates
Solution Approach 1:
The support structure is divided into multiple discrete support sections (first support section, second support section, third support section) positioned at different locations and heights within the filter element. This segmentation allows each support section to independently stabilize specific regions of the filter element, preventing tilting and maintaining positioning stability even as the overall filter element size increases for greater filtering capacity.
2Stability of the object's composition
If support structures are added to prevent tilting, then positioning stability is improved, but device complexity increases
Solution Approach 1:
The support sections are integrated directly into the filter element structure itself, merging the support function with the filter media structure. The support sections are formed as integral parts of the filter element, combining the filtering function and the support/stabilization function into a single unified structure, thereby preventing tilting without significantly increasing overall device complexity.
Solution Approach 2:
The support sections are positioned at different vertical heights within the filter element, utilizing the vertical dimension to provide stabilization. By distributing support sections at multiple height levels (first, second, and third support sections at progressively lower positions), the structure achieves three-dimensional stabilization that prevents tilting while maintaining a relatively simple overall design.
3Manufacturing precision
If support sections protrude axially beyond the filter bellows, then positioning accuracy is improved, but interference with fluid flow increases
Solution Approach 1:
The support sections are strategically positioned at specific local regions within the filter element rather than uniformly distributed. The first support section is positioned in the upper region, the second in the lower region, and the third at an intermediate height, with each section localized to provide support where needed while minimizing overall interference with fluid flow through the filter element.
Data Source
AI summary
A filter element (10) comprises filter bellows (16), in particular open filter bellows made of a filter medium (18), which has an oncoming flow side (28) and an outgoing flow side (30) for the fluid to be filtered. The filter element (10) is disposed in the filter housing (11) in such a way that it separates at least one inlet (15) from at least one outlet (17). An element axis (14) of the filter element (10) and a housing axis (25) of the filter housing (11) may be aligned in parallel with or axially to the installation direction (12) in the filter housing (11) for installing the filter element (10). The filter element (10) has at least one outer support section (38), which protrudes axially beyond the filter bellows (16) on the oncoming flow side (28) or the outgoing flow side (30) with respect to the element axis (14) and protrudes into an axial projection of the oncoming flow side (28) or the outgoing flow side (30) with respect to the element axis (14).In addition, a respective filter housing (11) and/or a respective filter (13) is/are described.