Cooling Circuit Filter Insert With Conical End for Low Pressure Loss
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Solution Overview
Problem
Current filtration devices for cooling circuits are bulky, difficult to integrate, and costly to maintain, leading to pressure losses and potential engine damage due to particle accumulation, with existing particle filters causing flow disturbances and requiring complex welding and frequent replacement.
Innovation Solution
A removable filtration device with a conical or frustoconical bottom wall that converges towards the longitudinal axis, facilitating easier assembly and disassembly, reducing pressure losses by guiding cooling fluid flow and allowing for efficient particle filtration without the need for complex welding or frequent replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a particulate filter is integrated into the cooling circuit, then particle filtration is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The filter element is nested within the housing structure, with the filter media integrated into the housing walls. The collection chamber is formed by the convergence of the bottom wall toward the longitudinal axis, creating a nested configuration where the filtration function is embedded within the structural framework rather than being a separate component.
Solution Approach 2:
The housing serves multiple functions: it provides structural support for the filter element, guides coolant flow through its conical bottom wall, collects particles in its chamber, and facilitates removable mounting through the opening at the first longitudinal end. This multi-functionality reduces the need for separate components.
2Strength
If welding is used to attach the filter to the fitting, then connection strength is improved, but manufacturing cost and time increase
Solution Approach 1:
The welding process (thermal/mechanical system) is replaced with a removable mechanical mounting system. The filter element is mounted in the housing through a simple opening at the first longitudinal end, allowing for tool-free installation and removal without requiring welding equipment or complex assembly procedures.
3Reliability
If a funnel configuration is used at the second end of the filter, then particle collection is improved, but pressure losses increase
Solution Approach 1:
The bottom wall is designed with a conical curvature that converges smoothly toward the longitudinal axis, creating a streamlined flow path. This curved geometry guides coolant flow more efficiently compared to sharp funnel configurations, reducing flow separation and turbulence while still enabling effective particle collection at the convergent region.
4Strength
If the filter is permanently attached in the connection, then connection strength is improved, but ease of maintenance deteriorates
Solution Approach 1:
The mounting system transitions from a static permanent attachment to a dynamic removable configuration. The filter element can be easily inserted and removed through the opening at the first longitudinal end, allowing for maintenance and replacement without dismantling the entire cooling circuit, while still providing a secure connection during operation.
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 filtration device ensures easy installation and maintenance of the filter, reduces pressure losses in the cooling circuit, and prevents engine damage by effectively filtering particles while minimizing flow disturbances.
Implementation Method 1
the bottom wall of the second end of the filter converges towards the longitudinal axis and towards the first longitudinal end... makes it possible to guide the cooling fluid flowing in the filter towards the filter cloth and thus to promote its flow in the cooling circuit
Implementation Method 2
this filter comprising a filter cloth extending around and along a longitudinal axis of the filter
Data Source
Figure 1~2
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AI summary
The invention relates to a filtration device (22) comprising: - a tubular fitting (24) having at least one inlet (30) of cooling fluid and at least one outlet (32), - a particle filter (26) mounted in said fitting (24) and extending in the fitting (24) from said inlet (30), this filter (24) having a generally elongated shape and having a first open longitudinal end (36) located on the side of said inlet (30) and a second closed longitudinal end (38) located inside the fitting (24), this filter (26) having a filter cloth (44) extending around and along a longitudinal axis (X) of the filter (26), and an overmolded body (46), the filter (26) being removably mounted in said fitting (24) and in said second end (38) having a bottom wall which converges towards the longitudinal axis (X) and towards said first longitudinal end (36).