Permanent Magnet Array Iron Filter for Lubricant Contaminant Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional mechanical filters are ineffective in removing iron particles smaller than 20 μm from lubricants, leading to premature wear and breakdown of engine parts, and magnetic filters face challenges in projecting a strong magnetic field to capture ferrous contaminants in fast-moving oils.
Innovation Solution
A permanent magnet array filter with a circular collar made of high magnetic permeability material, featuring a plurality of magnetic assemblies with opposite poles facing the center and gaps between them, intensifies the magnetic field to effectively capture and hold iron particles within the lubricant, using rare earth magnets for enhanced performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional mechanical filtration is used, then particles of 20 μm and larger can be removed, but ferrous contaminants under 20 μm remain in the lubricant causing premature wear
Solution Approach 1:
The patent replaces conventional mechanical filtration with a magnetic field-based removal system. Magnets are positioned within the filter housing to generate magnetic fields that attract and capture ferrous contaminants, eliminating the need for mechanical screens or cartridges that cannot effectively remove sub-20 μm particles.
Solution Approach 2:
The patent changes the removal mechanism from physical size-based filtration to magnetic property-based attraction. By utilizing the ferromagnetic properties of iron particles, the system can effectively remove particles regardless of their size, focusing on their magnetic susceptibility rather than their dimensional dimensions.
2Reliability
If magnets are used to remove ferrous contaminants, then iron particles can be attracted, but the magnetic field cannot be projected throughout the flow area to ensure complete particle capture
Solution Approach 1:
The patent divides the magnetic field generation into multiple discrete magnet assemblies positioned at different locations within the filter housing. This segmentation allows the magnetic field to be projected throughout the entire flow area, ensuring that particles are captured regardless of their position in the lubricant stream.
Solution Approach 2:
The patent positions magnets in three-dimensional space within the filter housing, creating a multi-dimensional magnetic field distribution. This spatial arrangement ensures comprehensive coverage of the flow area, transforming a potentially one-dimensional field into a volumetric field that captures particles throughout the entire lubricant passage.
3Reliability
If a strong magnetic field is generated to capture all ferrous particles, then particle removal effectiveness increases, but the complexity of projecting the field throughout the flow area increases
Solution Approach 1:
The patent combines multiple magnets into integrated assemblies that work together to create a unified magnetic field system. By merging the magnetic sources into coordinated assemblies positioned throughout the housing, the system achieves comprehensive particle capture while maintaining manageable structural complexity through standardized assembly configurations.
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 effectively removes iron particles from lubricants, extending the service life of mechanical devices by securely trapping contaminants within the filter, even in high-flow conditions, and can be adapted for various applications beyond oil filtration.
Implementation Method 1
Each magnetic assembly has two magnets with opposite poles facing the center of the filter and a gap between the adjacent assemblies. This arrangement intensifies the resultant magnetic field and projects the field deeply within the interior region of the filter.
Implementation Method 2
Because iron wear particles are ferromagnetic, they are easily attracted to magnets.
Data Source
AI summary
A permanent magnet array iron filter has a generally circular collar made of a high magnetic permeability material with a plurality of magnetic assemblies interiorly disposed longitudinally around an interior circumference therein. Each magnetic assembly has two magnets with opposite poles facing the center of the filter and a gap between the adjacent assemblies. This arrangement intensifies the resultant magnetic field and projects the field deeply within the interior region of the filter. Rare earth permanent magnets are used to maximize the magnetic field. The collar may be coated with a plastic coating to protect the filter. The collar has a gap to provide flexibility when sliding the filter over an oil filter. The thickness of the collar may be adjusted to meet the requirements of a particular application.