Grounded Fuel And Oil Filter for Electrostatic Discharge Prevention
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Solution Overview
Problem
Existing fuel and oil filters experience electrostatic discharges due to charge accumulation in the filtering element, leading to electrical faults, burns, and potential explosions, especially when flammable vapors are present, and current antistatic solutions are scarce, expensive, and not universally compatible.
Innovation Solution
A fuel and oil filter design that grounds the filtering element to the outer casing, using electrically conducting materials and contact lamina to dissipate electrical charges, ensuring electrical continuity and preventing charge accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antistatic papers are used to provide the filtering element, then electrical charge accumulation is reduced, but the solution is expensive and not universally compatible
Solution Approach 1:
The patent introduces an intermediary conducting lamina between the filtering element and the outer casing. This lamina acts as a mediator that provides electrical connection without requiring the filtering element itself to be made of conductive material, thus avoiding compatibility issues while preventing charge accumulation.
Solution Approach 2:
The patent replaces expensive antistatic papers with a simple conducting lamina made of readily available materials like aluminum foil or conductive plastic. This disposable-like component is much cheaper and more universally compatible while achieving the same safety function.
2Reliability
If antistatic papers are used to provide the filtering element, then electrical charge accumulation is reduced, but the solution is very expensive
Solution Approach 1:
The patent replaces expensive antistatic papers with a simple conducting lamina made of readily available materials like aluminum foil or conductive plastic. This disposable-like component is much cheaper and more universally compatible while achieving the same safety function.
Solution Approach 2:
The patent introduces an intermediary conducting lamina between the filtering element and the outer casing. This lamina acts as a mediator that provides electrical connection without requiring the filtering element itself to be made of conductive material, thus avoiding compatibility issues while preventing charge accumulation.
3Object-generated harmful factors
If the filtering element is made of electrically nonconducting material, then filtration function is achieved, but electrical charge accumulation occurs leading to electrostatic discharges
Solution Approach 1:
The patent introduces an intermediary conducting lamina between the filtering element and the outer casing. This lamina acts as a mediator that provides electrical connection without requiring the filtering element itself to be made of conductive material, thus avoiding compatibility issues while preventing charge accumulation.
Solution Approach 2:
The patent extracts the electrical conduction function from the filtering element itself and places it in a separate conducting lamina. This allows the filtering element to remain nonconductive for optimal filtration while the separate lamina handles the electrical charge dissipation function.
4Object-affected harmful factors
If electrical charges are not dissipated in the filtering element, then filtration function is maintained, but electrostatic discharges cause burns and potential explosions
Solution Approach 1:
The patent introduces an intermediary conducting lamina between the filtering element and the outer casing. This lamina acts as a mediator that provides electrical connection without requiring the filtering element itself to be made of conductive material, thus avoiding compatibility issues while preventing charge accumulation.
Solution Approach 2:
The patent changes the electrical conductivity parameter of the system by introducing a conducting lamina. This simple parameter change from nonconductive to conductive (via the lamina) prevents electrostatic discharge without fundamentally altering the filtration structure or adding complex systems.
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
Prevents electrical faults and ensures safe operation in potentially explosive environments by effectively dissipating electrical charges, using commonly available materials and ensuring structural simplicity and economic viability.
Implementation Method 1
at least one conducting lamina (10) arranged between the filtering element (6) and the outer casing (2), said lamina (10) allowing the electrical charges to be conveyed from the filtering element (6) to the outer casing (2)
Implementation Method 2
The flow of the fluid to be filtered through the filtering element causes the formation of electrical charge accumulations in the filtering element due to the triboelectric effect
Data Source
AI summary
A filter for fuels and oils which comprises a substantially cylindrical outer casing, which forms internally a filtration chamber provided with at least one inlet and at least one outlet for the fluid to be filtered; the filtration chamber accommodates at least one filtering element arranged around an inner supporting sleeve arranged substantially coaxially with the outer casing; elements being provided for electrically connecting the filtering element to the ground.