Fuel Filter Cartridge Ventilation Duct for Air Removal
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Solution Overview
Problem
Existing filter cartridges in fuel circulation circuits are inefficient in removing air accumulation, leading to damage in vehicle components due to air bubbles, especially when the cartridges are positioned horizontally or inclined, as air tends to accumulate and bypass holes are not effective in all operating conditions.
Innovation Solution
A filter cartridge with a ventilation device featuring a ventilation duct and holes positioned to aspirate air, ensuring efficient air removal and preventing large air bubbles from entering the fuel circulation circuit, even when the cartridge is in a horizontal position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bypass holes are provided in the cartridge for air to flow out, then air can be removed under certain conditions, but air accumulation is not effectively prevented when the vehicle is on inclined planes or when the cartridge is horizontally arranged
Solution Approach 1:
The ventilation device is segmented into multiple ventilation holes distributed at different positions and orientations on the cartridge body. This segmentation allows air escape paths to be available regardless of the cartridge's orientation, solving the problem of air accumulation in inclined or horizontal positions while maintaining reliable air removal functionality.
2Volume of moving object
If the cartridge is positioned horizontally to save space, then space efficiency is improved, but air bubbles accumulate and cannot be effectively removed
Solution Approach 1:
The ventilation holes are arranged in multiple spatial dimensions and orientations on the cartridge body. This dimensional arrangement ensures that regardless of whether the cartridge is positioned vertically, horizontally, or at an angle, there is always a ventilation hole positioned to allow air bubbles to escape, thus maintaining air removal capability while enabling flexible spatial installation.
3Productivity
If large air bubbles are allowed to pass through the filter, then fuel circulation is maintained, but damage occurs to pumps and injectors
Solution Approach 1:
The ventilation device performs preliminary action by removing air bubbles from the fuel before the fuel reaches the pump and injectors. The ventilation holes are positioned to intercept and vent air bubbles upstream, preventing them from causing damage to downstream components while maintaining continuous fuel circulation.
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 filter cartridge effectively prevents air accumulation, maximizing the filtering surface and ensuring the fuel circulation system operates efficiently under various conditions, reducing the risk of air bubbles causing damage to vehicle components.
Implementation Method 1
a ventilation device (4) suitable for aspirating air
Implementation Method 2
a filter insert (3) housed in the filtration chamber (20) to filter the fuel
Implementation Method 3
because of its specific gravity, air tends to accumulate in the upper part of the filter cartridge
Data Source
AI summary
A filter cartridge for a fuel circulation circuit of a vehicle.The filter cartridge comprises a cartridge body identifying a filtration chamber. In said filtration chamber, the filter cartridge further comprises at least one filter insert which divides said filtration chamber into a dirty chamber containing fuel to be filtered and a clean chamber containing filtered fuel.The filter cartridge further comprises a ventilation device suitable to ventilate in the dirty chamber, wherein the ventilation device comprises at least one ventilation duct placed in an upper area of the filtration chamber in which the air floating in the fuel accumulates. Said ventilation duct has a plurality of ventilation holes mutually spaced from one another through which the air is removed from the filtration chamber.