Gel-Sealed Filter Assembly for Leak-Free First-Stage Filtration
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Solution Overview
Problem
Existing air filtration systems face challenges in achieving a leak-free seal during filter installation, with complex structures and risk of damage to sealing elements, and existing sealing solutions like gel channels or gaskets are not suitable for the first filter level due to particle entry and aging issues.
Innovation Solution
A filter arrangement featuring a gel canal gasket with a sword-like design that immerses into the gel filling, providing a secure seal and preventing dirt entry, with options for sword and cover element configurations to ensure easy assembly and durability, and the gel canal can be positioned on either the filter element or housing for flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gel channels with swords are used for sealing, then a seal is achieved, but particles from raw gas enter the gel and cause rapid aging
Solution Approach 1:
A cover element is introduced as an intermediary component between the sword and the gel canal. This cover element prevents direct contact between particles in the raw gas and the gel, while still allowing the sword to penetrate the gel canal for sealing. The cover element thus mediates between the sealing function and the protection of the gel from contamination.
Solution Approach 2:
The cover element is positioned in advance to cover the gel canal before particles can enter. By preemptively blocking the opening of the gel canal, the cover element prevents particle entry before contamination can occur, extending the gel's operational life while maintaining seal integrity.
2Reliability
If additional protruding tabs of filter material are used as sealing elements, then sealing is achieved, but the structure becomes complicated and tabs may be damaged during installation
Solution Approach 1:
The sealing function is extracted from the filter material tabs and transferred to a separate gel canal system. The gel canal with sword and cover element configuration provides the sealing function independently, allowing the filter structure to remain simple while achieving reliable sealing through the dedicated gel-based mechanism.
3Reliability
If a gasket is used for sealing, then sealing is achieved, but dirt can still enter the gel canal
Solution Approach 1:
The cover element serves as a protective intermediary that covers the gel canal opening. This prevents dirt and particles from entering the gel canal while the sword penetrates the gel for sealing. The cover element thus protects the gel from harmful contamination while allowing the sealing function to operate.
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
Ensures a leak-free and easy-to-use filter installation with reduced dirt entry into the gel canal, maintaining seal integrity and extending the lifespan of the sealing gel, suitable for various air filtration applications including vehicle cabins and fuel cell systems.
Implementation Method 1
The gasket is designed as a gel canal, namely as a groove channel with a gel filling, whereby PU or silicone can be used as a gel
Implementation Method 2
The filter element shows a filter material for filtering an air flow
Data Source
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AI summary
The invention relates to a filter arrangement (10) and the use of such a filter arrangement for filtering an airflow. The filter arrangement (10) according to the invention comprises a filter element (1) in a first filter stage and a housing (20) for receiving the filter element (1), wherein the filter element (10) includes a filter material (2). Advantageously, a circumferential gel seal (4) is arranged between the filter element (1) and the housing (20) to seal the filter element (1) against the housing (20). This seal is particularly designed as a gel channel (4.1). This filter arrangement (10) ensures easy assembly of the filter element (1) and a leak-free seal in the assembled state.