Pleated Filter Element With Fluid Deflection Channel
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Solution Overview
Problem
Existing filter elements in the motor vehicle sector face challenges in maximizing filter area within limited installation space, particularly when dealing with fluids like air, gasoline, diesel, and urea solutions, due to geometric constraints and the need for efficient fluid flow and filtration.
Innovation Solution
A filter element with a pleated filter medium connected to a support frame, featuring a fluid duct that redirects fluid flow, allowing for optimal use of installation space and enhanced stability, especially for liquid filtration, using materials like synthetic non-woven materials or paper, and incorporating a fluid guide channel for flow reversal and deflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a pleated filter medium is used to increase filter area, then the filtration capacity is improved, but the installation space requirement increases
Solution Approach 1:
The filter medium is folded into a three-dimensional bellows structure with multiple pleats, transforming a two-dimensional surface into a compact three-dimensional form. This allows the filter medium to occupy space efficiently while maintaining a large surface area for filtration within a limited installation volume.
Solution Approach 2:
The bellows structure allows the filter medium to be nested within itself through multiple folds, creating a compact configuration where the filter surface is folded back on itself multiple times, maximizing the filter area within a small footprint.
2Ease of operation
If the filter medium is made flexible to improve flow characteristics, then the fluid flow is improved, but the stability during flow decreases
Solution Approach 1:
The filter medium is divided into multiple rigid or semi-rigid segments through folding, creating a structured bellows form. This segmentation provides structural stability while maintaining the ability to guide fluid flow through the pleated structure.
Solution Approach 2:
The filter element combines the filter medium with a support frame and end disk sections to create a composite structure. This composite construction provides the necessary stability during flow while allowing the filter medium to perform its filtration function.
3Ease of manufacture
If the support frame structure is simplified to reduce complexity, then the manufacturing is improved, but the stability during flow is reduced
Solution Approach 1:
The support frame is merged with the end disk sections to form an integrated one-piece structure. This combining of components simplifies manufacturing by reducing the number of separate parts and assembly steps while maintaining the structural stability needed during fluid flow.
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 solution enables efficient filtration with a larger filter surface area, improved stability during fluid flow, and flexibility in installation, accommodating various fluid types and applications, including air and liquid filtration in vehicles and other machinery.
Implementation Method 1
a filter element with a pleated filter medium and a support frame to which the filter medium is connected
Implementation Method 2
the support frame having a fluid duct which is set up for this purpose a fluid flowing through the filter medium in such a way that it can be guided along a side of one of the end disk sections facing away from the filter medium
Data Source
Figure 1
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AI summary
The invention relates to a filter element (1), in particular an air filter element, comprising a folded filter medium (5) and a support frame (2), with which the filter medium (5) is connected, wherein the filter medium (5) is arranged between a first end disk section (17) and a second end disk section (18) of the support frame (2), and wherein the support frame (2) has a fluid-guiding channel (26) which, while said fluid (L) is flowing through the filter medium (5), is designed to direct the fluid (L) in such a way that it can be guided along a side of one of the end disk sections (17, 18), which is facing away from the filter medium (5).