Magnetic Filter Element with Spiral Baffle for Ferrous Particle Removal
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Solution Overview
Problem
Current filters struggle to efficiently remove ferrous particles from fluid systems, especially in cold environments, leading to reduced system life and increased costs due to the need for expensive filters and bypass restrictions.
Innovation Solution
A magnetic filter element with a coaxial inner liner and axial magnets placed inside a cylindrical array, combined with a spiral baffle or vortical flow insert, effectively traps ferrous contaminants and allows for modular, cost-effective servicing and increased filtration efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fine filter media is used to trap fine ferrous particles, then filtration efficiency is improved, but pressure drop increases due to high viscosity of low temperature oil
Solution Approach 1:
The patent replaces the mechanical filtration system with a magnetic separation system. Instead of relying on fine filter media that creates high pressure drops, the invention uses magnetic fields to attract and remove ferrous particles from the fluid flow, eliminating the need for high-resistance filtration in cold environments.
Solution Approach 2:
The patent changes the operating parameters by introducing magnetic field interaction. By placing magnets around the fluid flow path, the system exploits magnetic susceptibility differences to separate ferrous particles without increasing flow resistance, thereby maintaining low pressure drop while achieving fine particle removal.
2Duration of action of stationary object
If magnetic filters are placed upstream of traditional filter media, then filter life is extended, but device complexity increases
Solution Approach 1:
The patent combines the magnetic separation function and mechanical filtration function into a single integrated device. The magnets are positioned around the fluid flow path within the filter housing, allowing ferrous particle removal and standard filtration to occur simultaneously in one element rather than requiring separate staged systems.
3Reliability
If multiple filters are stacked in parallel circuits, then contaminant removal is maximized, but device complexity increases
Solution Approach 1:
The patent segments the filter element into distinct functional zones: an outer housing, an inner liner, and magnet positions around the flow path. This segmentation allows a single filter element to perform multiple functions that would otherwise require multiple stacked filters, simplifying the overall system while maintaining high contaminant removal efficiency.
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 magnetic filter element provides enhanced trapping of ferrous contaminants, extends filter life, and reduces operational costs by allowing for easy servicing and combination with standard filters for absolute filtration, while maintaining fluid flow efficiency.
Implementation Method 1
The ferrous based contaminates are attracted to the liner by the magnets and held
Data Source
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AI summary
A filter for removing ferrous particles from a fluid. The filter has an outer filter housing and a non-ferrous liner inside the housing. A plurality of magnets are longitudinally extended at intervals outside the liner. An insert inside the liner imparting a directional flow to the fluid inside the filter whereby ferrous particles in the fluid are trapped by the magnets and held against the non-ferrous line.