Oil Pan Integrated Filter Layout for Cleaner Engine Oil Service
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Solution Overview
Problem
Existing engine oil systems face challenges with complex and bulky oil filter installations, high maintenance time, and messy handling during filter changes due to high oil pressures and the need for separate filter housings.
Innovation Solution
The engine oil system incorporates an oil filter arranged within the oil pan, where the filter outlet discharges oil back into the pan, reducing the need for a separate housing, minimizing oil residue during maintenance, and allowing for faster and cleaner filter changes, with the option to vary filter size and shape, and dividing oil flow to optimize cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the oil filter is installed with a separate filter housing and screwed filter lid to withstand high oil pressures, then the reliability and pressure resistance are improved, but the device complexity and maintenance time increase
Solution Approach 1:
The patent merges the oil filter with the oil pan by integrating the filter directly into the oil pan structure, eliminating the separate filter housing. The filter is positioned such that its outlet discharges directly into the oil pan, combining two previously separate components (filter housing and oil pan) into one integrated unit, thereby reducing device complexity while maintaining pressure resistance through the robust oil pan structure.
Solution Approach 2:
The oil pan is given multiple functions: it serves as both the oil reservoir and the housing for the oil filter. By integrating the filter into the oil pan, the oil pan becomes a multi-functional component that performs both containment and filtration housing duties, reducing the overall number of components needed in the system.
2Reliability
If the filter lid is screwed into the filter housing to ensure leak-tightness, then the sealing reliability is improved, but the maintenance time and ease of operation worsen
Solution Approach 1:
The patent segments the filter assembly from the main oil system by using a removable filter unit that can be easily detached from the oil pan. This allows the filter to be separated as an independent serviceable component, enabling quick removal and replacement without affecting the oil pan or other system components, thereby reducing maintenance time while maintaining sealing integrity during operation.
Solution Approach 2:
The filter assembly is designed with dynamic accessibility - it can be in a secured state during operation to maintain sealing reliability, and easily transitioned to a removable state for maintenance. The design allows the filter to be quickly detached when needed, transforming from a fixed secured connection to a easily removable connection during service operations.
3Reliability
If the oil filter is arranged downstream of the oil pump to receive sufficient oil pressure, then the filtering effectiveness is improved, but the oil pressure drop and need for robust installation increase
Solution Approach 1:
The patent positions the oil filter outlet to discharge directly into the oil pan at approximately the same level as the oil pump inlet, creating an equipotential arrangement. This minimizes the height difference and potential energy loss, allowing the filtered oil to flow back to the oil pan with minimal additional pressure requirement, thereby reducing the overall pressure drop across the filter while maintaining effective filtration.
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
This configuration simplifies maintenance, reduces the system's weight and space requirements, eliminates the need for pre-filling post-filter changes, and allows for more flexible filter designs, while ensuring efficient oil cleaning and reduced mess during technician handling.
Implementation Method 1
an oil filter for cleaning oil in the engine oil system... oil is passed through the oil filter whereby the debris and impurities are captured by the filter material in the oil filter
Implementation Method 2
an oil pump for pressurizing the oil and enabling transport of the oil from the oil pan to the oil using components
Data Source
AI summary
The invention relates to an engine oil system (1, 1′, 101) for supplying oil to oil using components (3) in a vehicle (800). The engine oil system comprises an oil pan (10) for holding oil received from the oil using components, an oil pump (20) fluidly connected to the oil pan for pumping oil from the oil pan to the oil using components, and an oil filter (30, 30′ 130) configured for cleaning the oil. The oil filter has a filter inlet (32, 32′, 132) for receiving oil to be cleaned, and a filter outlet (34, 34′ 134) for discharging oil from the oil filter. The oil filter is arranged in the oil pan such that, in use, the filter outlet discharges oil into the oil pan.