Fuel Filter Device Using Hydroxyl Radical Oxidation
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Solution Overview
Problem
Existing fuel filter devices face challenges in maintaining operational safety and extending filter service life due to contamination from organic substances and particles, which increase flow resistance and require frequent filter replacements.
Innovation Solution
A fuel filter device utilizing a separating device that forms hydroxyl radicals from water molecules, either through electrolysis with a diamond electrode or catalytically with titanium dioxide, to oxidize organic substances into CO2, reducing flow resistance and extending filter life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional filter media are used to separate organic substances and particles from fuel, then filtration function is achieved, but flow resistance increases and filter service life is limited
Solution Approach 1:
The patent changes the chemical state of captured organic substances by using electrolysis to generate hydroxyl radicals that oxidize the organic substances to CO2 and water. This parameter change from physical accumulation to chemical transformation resolves the contradiction by eliminating the buildup that causes flow resistance increase, thereby extending filter service life while maintaining filtration function
Solution Approach 2:
The patent replaces the purely mechanical filtration system with an electrochemical system. By introducing electrolysis and hydroxyl radical generation, the system transforms organic substances chemically rather than just physically separating them. This substitution allows the filter media to maintain low flow resistance for longer periods, extending service life while preserving filtration effectiveness
2Reliability
If filter media accumulate organic substances and particles, then filtration effectiveness is maintained, but flow resistance increases requiring frequent replacements
Solution Approach 1:
The patent transforms the accumulated organic substances from a harmful buildup into beneficial oxidation products (CO2 and water) through electrolysis-generated hydroxyl radicals. This parameter change prevents the flow resistance increase that would otherwise require frequent filter replacements, thereby maintaining operational continuity while preserving filtration effectiveness
Solution Approach 2:
The filter device performs self-cleaning through the electrolysis process that continuously generates hydroxyl radicals to oxidize captured organic substances. This self-service mechanism eliminates the need for external regeneration systems or frequent manual replacements, improving both filtration effectiveness maintenance and operational continuity
3Reliability
If diamond electrode is used for electrolysis to generate hydroxyl radicals, then organic substances are oxidized to CO2, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent uses diamond electrode material which changes the electrochemical parameters of the electrolysis process, enabling efficient hydroxyl radical generation and organic substance oxidation. While diamond increases manufacturing cost, its exceptional chemical inertness and electrochemical stability provide superior oxidation efficiency that justifies the investment in applications requiring high reliability
Solution Approach 2:
The patent employs diamond as a composite electrode material that combines carbon's electrochemical activity with diamond's chemical inertness and mechanical strength. This composite material approach achieves high oxidation efficiency while managing the trade-off with manufacturing cost through the unique properties of diamond material
4Reliability
If titanium dioxide catalyst is used for photo-oxidation, then organic substances are degraded, but light radiation infrastructure is required increasing device complexity
Solution Approach 1:
The patent replaces complex mechanical radiation delivery systems with a simpler photo-catalytic approach using titanium dioxide. The catalyst absorbs ambient or supplemental light to generate hydroxyl radicals that degrade organic substances, achieving high degradation efficiency with reduced infrastructure complexity compared to direct electrolysis methods
Solution Approach 2:
The titanium dioxide acts as an intermediary substance that absorbs light energy and converts it into chemical activity (hydroxyl radical generation) for organic substance degradation. This intermediary approach simplifies the overall system by using the catalyst to mediate between light energy and chemical reaction, reducing the need for complex direct energy delivery infrastructure
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 'cold' oxidation process effectively reduces flow resistance and extends filter service life by converting organic substances into CO2, allowing for more economical and prolonged operation with reduced need for filter replacements.
Implementation Method 1
An electrolytically operating separating device has the electrolysing device at least one diamond electrode, which acts anodically during the electrolysis
Implementation Method 2
hydroxyl radicals are chemically highly reactive oxidants, which oxidize the impurities, in particular organic substances, to the greatest possible extent and convert them into compounds such as CO2
Implementation Method 3
a catalytically operating separating device, titanium dioxide serving as a catalyst is particularly advantageously provided on or in the filter medium of a filter element associated with the filter device
Implementation Method 4
The effectiveness of the catalyst can be increased in a simple and advantageous manner by arranging it in such a way that the catalyst can be exposed to light radiation, in particular in the wavelength range from 180 to 300 nm
Data Source
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AI summary
The invention relates to a filter device for purifying fluids, especially fuels, that are contaminated with organic substances. Said filter device is characterised in that hydroxyl radicals are formed from water molecules contained in the fluids, by means of a separating device (10, 14, 22), said hydroxyl radicals oxidising the impurities, especially organic substances, as much as possible, and converting them into compounds such as CO2.