Air Filter Deflecting Means for Even Adsorbent Utilization
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Solution Overview
Problem
Conventional air filters prematurely reach saturation due to uneven air flow distribution, leading to wastage of unused adsorbent material and reduced filtration efficiency.
Innovation Solution
The air filter design incorporates end and intermediate deflecting means to redirect air flow evenly across the adsorbent, ensuring all adsorbent is utilized by eliminating stagnant zones and optimizing contact time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional air filters are designed with symmetric suction and extraction openings, then the structure is simple and easy to manufacture, but the air flow distribution becomes uneven causing premature saturation in the central part of the filter
Solution Approach 1:
The patent applies asymmetry by distributing suction openings and extraction openings in non-symmetric positions on the filter housing. The suction openings are positioned at specific locations while extraction openings are positioned differently, creating an asymmetric flow pattern that directs air through the entire adsorbent bed including peripheral areas, preventing central saturation and improving overall filtration efficiency.
2Quantity of substance
If the filter bed is compactly filled with adsorbent material, then the adsorption capacity is maximized, but stagnant zones form where air flow does not reach the adsorbent effectively
Solution Approach 1:
The patent segments the air flow path by creating multiple flow channels through strategic positioning of suction and extraction openings. This segmentation divides the air flow into distinct pathways that collectively cover the entire adsorbent bed, ensuring that even compactly filled filters maintain effective air-adsorbent contact throughout all regions including previously stagnant zones.
3Reliability
If the filter reaches saturation in the central part first, then breakthrough occurs and filtration efficiency drops, but a large amount of unused adsorbent material remains in peripheral areas
Solution Approach 1:
The patent implements preliminary action by pre-configuring the asymmetric opening distribution to guide air flow toward peripheral areas first. This preliminary flow distribution prevents central saturation from occurring prematurely, allowing the entire adsorbent bed to be utilized evenly before breakthrough occurs, thereby extending filter life and reducing adsorbent waste.
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
Enhances adsorbent utilization, reduces material costs, and maintains filtration capacity by ensuring thorough air-adsorbent interaction, resulting in a lighter and more efficient filter.
Implementation Method 1
Adsorption is a process of physicochemical nature in which molecules of a gas or liquid, called adsorbate, interact and adhere to the surface of a solid, called adsorbent or substrate.
Data Source
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AI summary
Air filter, comprising at least one housing (2) with an inner space (S) configured to contain an adsorbent (C) and featuring; a suction side (3) with one or more suction openings (31) allowing the entry of an air flow (F) into the filter (1); and a extraction side (4) with one or more extraction openings (41) allowing the air flow (F) to exit out of the filter (1). The inner space (S) is delimited by end deflecting means (5), configured to redirect the air flow (F) towards at least one extraction opening (41), wherein said deflecting means (5) are arranged at a first longitudinal end (1L1) and/or at a second longitudinal end (1L2) of the filter (1); and/or at a first transverse end (1T1) and/or at a second transverse end (1T2) of the filter (1).