Tank Vent Air Filter With Mechanical Clogging Indicator
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Solution Overview
Problem
Conventional gas tank ventilation systems face challenges in determining the optimal time to replace air filter material due to varying levels of restriction or clogging, leading to unnecessary waste and maintenance.
Innovation Solution
An air filter system with an indicator arrangement that mechanically indicates the congestion level of the air filter material based on air pressure differences, featuring a filtered air passage, pressure plate, and visible markings to facilitate timely replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If air filter material is replaced on a regular basis after a certain amount of time, then the tank ventilation system maintains reliable operation, but the air filter material is exchanged long before its full utilization is reached, leading to unnecessary waste and excess maintenance work
Solution Approach 1:
The patent implements a feedback mechanism through an indicator arrangement that continuously monitors the congestion level of the air filter material and provides visual feedback to the user. This allows replacement to occur precisely when needed rather than following a fixed schedule, thereby maintaining system reliability while eliminating premature replacement and material waste.
Solution Approach 2:
The indicator arrangement enables the air filter system to self-monitor and self-report its status without external intervention. The automated indication of congestion levels allows the system to inform users when maintenance is actually required, eliminating the need for scheduled maintenance inspections and reducing unnecessary maintenance work.
2Loss of substance
If air filter material is monitored and replaced only when necessary, then waste and maintenance work are reduced, but it is not always easy to determine when to replace the air filter material
Solution Approach 1:
The indicator arrangement provides continuous visual feedback about the congestion level of the air filter material. This transforms the previously undetectable or difficult-to-measure congestion state into clearly visible information, enabling users to determine precisely when replacement is needed without waste or unnecessary maintenance.
Solution Approach 2:
The indicator arrangement utilizes color changes or visual indicators to communicate the congestion level of the air filter material. This makes the previously invisible congestion state easily detectable and measurable, allowing users to monitor filter condition and plan replacement timing accurately.
3Loss of substance
If the air filter system provides automated indication of congestion levels, then unnecessary waste and maintenance work are avoided, but the device complexity increases due to the indicator arrangement
Solution Approach 1:
The indicator arrangement is designed to be self-powered, utilizing the existing pressure differential across the air filter material to drive the indication mechanism. This eliminates the need for external power sources, complex electronics, or additional energy systems, thereby reducing overall device complexity while still providing automated monitoring and indication capabilities.
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
Enables efficient use of air filter material to its maximum capacity, reducing waste and maintenance by providing a visual and automated indication of clogging levels.
Implementation Method 1
an indicator arrangement in fluid connection with the air outlet and being configured to mechanically indicate a congestion level of the air filter material based on an air pressure difference at the air outlet caused by an accumulation of particles in the air filter material
Data Source
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AI summary
An air filter system for a tank arranged to provide a fluid is disclosed. The air filter system comprises an air filter housing being arranged to receive and hold an air filter material between an air inlet and an air outlet, wherein vent filter housing is further arranged to guide unfiltered ambient air from the air inlet towards the air filter material and to guide filtered air from the air filter material out through the air outlet to the tank, and an indicator arrangement in fluid connection with the air outlet and being configured to mechanically indicate a congestion level of the air filter material based on then air pressure difference at the air outlet caused by an accumulation of particles in the air filter material. A vehicle comprising the air filter system is also disclosed.