Engine Cooling Filter with Gravity Settling Chamber
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing filter arrangements in cooling circuits of engines, such as those used in internal combustion engines and electric motors, face issues with clogging due to accumulated dirt particles, which can lead to wear, leaks, and a reduction in cooling efficiency, as sand residues from casting processes are not effectively removed.
Innovation Solution
A filter arrangement with a collecting chamber upstream of the filter, where dirt particles are diverted by gravity when the liquid flow stops, forming a dead space that prevents re-entrainment into the liquid flow, thereby preventing filter clogging and maintaining cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter is used to remove dirt particles from cooling liquid, then dirt particle filtration is improved, but the filter clogs over time reducing service life
Solution Approach 1:
The filter housing is segmented into two functional zones: a flow path for active filtration and a dead space collecting chamber for particle accumulation. This segmentation allows the filter media to remain clean by transferring captured particles to the dead space, preventing clogging and extending service life while maintaining continuous filtration effectiveness.
2Reliability
If dirt particles are held back by the filter, then filtration effectiveness is improved, but particles may be re-entrained into the liquid flow
Solution Approach 1:
The harmful factor of re-entrained particles is extracted from the system by creating a separate dead space collecting chamber where particles are isolated from the liquid flow. The covering with openings allows particle deposition into this isolated space while the flow path geometry prevents particles from being carried back into the circulating liquid, eliminating the re-entrainment problem.
3Quantity of substance
If the filter housing volume is increased to accommodate particle collection, then particle storage capacity is improved, but the device complexity increases
Solution Approach 1:
The particle collection function is merged with the existing filter housing structure by designating a portion of the housing volume as a dead space collecting chamber. This integration uses the same housing walls and covering structure to serve dual purposes: maintaining liquid flow filtration and collecting accumulated particles, thereby increasing storage capacity without adding separate collection devices or complex mechanical mechanisms.
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 solution effectively prevents filter clogging and ensures reliable dirt particle collection, reducing wear and leaks, while maintaining the cooling circuit's efficiency by ensuring dirt particles are not re-entrained into the liquid flow, thus extending the filter's service life and ensuring consistent cooling performance.
Implementation Method 1
a filter which is arranged in the filter housing in the flow path of the liquid for filtering dirt particles out of the liquid
Implementation Method 2
dirt particles which are filtered out by the filter drop because of gravity when liquid no longer flows through the filter housing
Data Source
Figure 1~2
Figure 3
Figure 4~6
AI summary
A filter arrangement for a liquid-conducting system, preferably a cooling circuit of an engine, comprising a filter housing with an inlet and an outlet for liquid flowing along a flow path through the filter housing, furthermore comprising a filter which is arranged in the filter housing in the flow path of the liquid for filtering out dirt particles from the liquid, characterized by a collecting chamber which is arranged upstream of the filter and into which dirt particles which are filtered out by the filter drop because of gravity when liquid no longer flows through the filter housing, wherein the collecting chamber forms a dead space, and therefore dirt particles located in the collecting chamber are not entrained by liquid flowing through the filter housing.