Multi-Staged Fluid Filter with Segmented Protrusions
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Solution Overview
Problem
Conventional fluid filters face challenges in efficiently separating particles of various sizes while minimizing flow restriction, particularly in applications like internal combustion engines and desalination, where smaller apertures reduce performance and increase sodium chloride collection.
Innovation Solution
A filter design featuring multiple layers of panels with structured elements, including vertically extending protrusions and filtering protrusions that form progressively narrower channels, allowing for efficient particle separation and reduced flow restriction by using a combination of wide entrance channels and narrower channels to trap specific-sized particles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If smaller apertures are used in conventional fluid filters, then particle separation efficiency is improved, but flow restriction increases and performance decreases
Solution Approach 1:
The filter is divided into multiple stages with progressively smaller apertures arranged in series. Each stage captures particles of a specific size range, allowing the system to achieve high separation efficiency across multiple particle sizes without requiring all apertures to be small simultaneously, thus maintaining better flow characteristics
Solution Approach 2:
Different regions of the filter media have different aperture sizes tailored to capture specific particle sizes. The aperture size varies locally from larger at the inlet to smaller at subsequent stages, optimizing both capture efficiency for target particles and maintaining adequate flow pathways
2Measurement precision
If smaller apertures are used in desalination filters, then separation efficiency is improved, but sodium chloride collection increases
Solution Approach 1:
The desalination filter uses multiple stages with progressively smaller apertures to separate different sizes of dissolved substances. This staged approach enables selective separation where larger ions or clusters are removed in earlier stages, reducing the burden on later stages and optimizing overall separation efficiency without excessive retention of all sodium chloride
Solution Approach 2:
Different stages of the filter have locally optimized aperture sizes matched to the size distribution of dissolved substances. This allows each stage to target specific contaminants while maintaining permeability for water molecules, achieving high separation efficiency with minimized salt collection
3Device complexity
If conventional single-stage filters are used, then device complexity is low, but particle separation across multiple sizes is inefficient
Solution Approach 1:
The filter system is segmented into multiple functional stages, each with aperture sizes optimized for specific particle size ranges. This segmentation enables efficient separation of particles across a broad size distribution, achieving superior multi-size particle separation compared to single-stage filters
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 multi-staged filter design effectively separates particles of different sizes with reduced flow restriction, enhancing performance and reducing sodium chloride collection in desalination processes, while maintaining engine efficiency and fuel economy.
Implementation Method 1
filter channels having a size that is configured to receive and retain objects of a given size
Data Source
AI summary
Multiple staged filters are provided herein. A filter may include a plurality of panels that each include a filtering front surface and a flat back surface, the filtering front surface having a first row of vertically extending protrusions spaced apart from one another to form vertical channels, a second row of vertically extending protrusions spaced apart from one another to form vertical channels, and one or more rows of filtering protrusions, where the one or more rows are vertically spaced apart from one another and extending between the first and second rows of vertically extending protrusions. Further, each row of filtering protrusions may include filtering protrusions that are spaced from one another to form filter channels having a size that is configured to receive and retain objects of a given size.