Engine Oil Guide System for Filter Leak Management
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Solution Overview
Problem
In internal combustion engines, lubricating oil leaks from the oil filter attachment portion and flows down along the sidewall surface, leading to a workload in wiping the oil and potential contamination of the oil pan, as it spreads over the entire surface.
Innovation Solution
A guide system with a projection and descending portion is integrated into the engine design, directing and collecting the leaking lubricating oil to prevent it from reaching the lower surface of the oil pan, utilizing a convex-shaped collecting portion to ensure efficient oil drip and reduce maintenance workload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the oil filter is attached to the sidewall surface of the case, then the oil filter can be easily accessed and maintained, but lubricating oil leaks and flows down along the sidewall surface causing contamination and increased maintenance workload
Solution Approach 1:
A guide structure is introduced as an intermediary element between the oil filter attachment point and the oil pan. This guide includes a projection extending from the sidewall and a collecting portion that intercepts leaking oil, redirecting it to a controlled drainage path away from the oil pan, thus preventing contamination while maintaining the accessible filter location
Solution Approach 2:
The leaking oil, which was previously causing contamination, is now captured and redirected by the guide structure to drain in a controlled manner away from critical areas. The harmful leakage is converted into a controlled drainage system that protects the oil pan while still allowing the oil to escape from the filter attachment
2Ease of repair
If the oil filter is detached for replacement, then maintenance can be performed, but remaining lubricating oil flows down along the sidewall surface requiring wiping work
Solution Approach 1:
The guide structure serves as a mediator that captures and redirects oil during filter replacement operations. The projection and collecting portion work together to channel remaining oil away from the sidewall surface, eliminating the need for manual wiping while the filter is being replaced
Solution Approach 2:
The guide structure is pre-installed and positioned to intercept oil before it can flow down the sidewall surface. This preliminary intervention prevents the oil from reaching areas that would require wiping, so the protective action is already in place before the filter removal and replacement process begins
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 guide system effectively restricts lubricating oil from spreading to the oil pan's lower surface, reducing the need for extensive wiping and maintaining engine cleanliness, thereby simplifying maintenance.
Implementation Method 1
a guide that guides oil flowing out from the oil filter and flowing down along a sidewall surface of the case
Data Source
AI summary
An internal combustion engine includes: a case; an oil pan disposed below the case; an oil filter into which oil inside the oil pan flows; and a guide that guides oil flowing out from the oil filter and flowing down along a sidewall surface of the case. The guide includes a projection that is provided continuously in a transverse direction in the sidewall surface of the case and extends so as to project outside the case from the sidewall surface, a descending portion that is extended downward from an outer peripheral edge of the projection, and a collecting portion that is positioned in a lower end edge of the descending portion and collects the oil that flows along the sidewall surface of the case downwardly from the projection through the descending portion.