Arched Air Filter Media Blocks for Uniform Pleat Loading
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Solution Overview
Problem
Existing air filtration systems for internal combustion engines face challenges in efficiently utilizing non-uniform packaging spaces while maintaining filtration performance, leading to inconsistent dust loading and potential engine damage from non-genuine filter elements.
Innovation Solution
A pleated filter element design with arched media blocks forming a lenticular-shaped interior space, ensuring uniform pleat spacing and increased effective media area, coupled with a housing that matches the filter element's shape to prevent use of non-matching elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional flat filter media is used, then manufacturing is simple, but space utilization in non-uniform packaging is poor and dust loading is inconsistent
Solution Approach 1:
The filter media is formed into arched blocks with curved surfaces that conform to the non-uniform packaging space. The arch shape allows the filter element to utilize the available volume more effectively while maintaining uniform pleat spacing, resolving the contradiction between simple construction and space utilization.
Solution Approach 2:
The filter element is divided into multiple arched media blocks that can be stacked to create the complete filter assembly. This segmentation allows each block to be manufactured simply with consistent geometry while the stacked configuration optimizes space utilization in the non-uniform packaging space.
2Productivity
If arched media blocks are used to optimize space, then space utilization improves, but manufacturing complexity increases
Solution Approach 1:
The arched shape is a simple geometric form that can be manufactured using standard molding techniques. The curvature is consistent throughout each block, making the manufacturing process straightforward while achieving optimal space utilization when stacked.
Solution Approach 2:
All media blocks have identical homogeneous arched geometry with uniform pleat spacing and consistent dimensions. This homogeneity simplifies manufacturing by allowing mass production of standardized blocks that can be easily assembled, reducing overall device complexity despite the curved shape.
3Reliability
If uniform pleat spacing is achieved through arched blocks, then filtration efficiency improves, but media usage increases
Solution Approach 1:
The arched shape with uniform pleat spacing distributes the filtration load evenly across the media surface, improving filtration efficiency. The curved geometry allows the media to be used more effectively by maintaining consistent pleat spacing throughout, while the compact arch form reduces the total volume of media required compared to flat configurations.
Data Source
AI summary
A filtration system includes an air cleaner housing and a filter element. The air cleaner housing includes a base and a removable cover. At least one of the base or the cover defines a cavity and a protrusion extending into the cavity. The filter element is disposed within the cavity. The filter element includes a plurality of media blocks each including a pleated filter media. The plurality of media blocks are arranged in arch shapes of approximately equal inner radii. The plurality of media blocks are coupled to each other along opposing edges that extend along a pleat direction of the pleated filter media. The media blocks together define at least one void that extends along the protrusion. The protrusion occupies a portion of the void.