Dual-Outlet Oil Filter Layout for Compact Hybrid Lubrication
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Solution Overview
Problem
Current oil filters for vehicle lubrication systems in complex hybrid vehicles require multiple circuits and connections due to the increased complexity of cooling oil in hybrid transmissions, leading to a cumbersome lubrication system design.
Innovation Solution
An oil filter with two distinct outlets, allowing for a simplified lubrication circuit architecture by enabling direct connections to separate components, such as a pump and a heat exchanger, through a 3-way valve configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If multiple circuits and connections are used to cool oil in hybrid transmissions, then the cooling capability is improved, but the lubrication system complexity increases
Solution Approach 1:
The oil filter housing is designed with multiple outlet ports that can serve different functions within the same lubrication system. The first outlet port connects to the pump inlet while the second outlet port connects to the exchanger inlet, allowing a single filter component to support multiple circuit paths for both filtration and cooling operations, thereby reducing overall system complexity while maintaining enhanced cooling capability
2Reliability
If multiple circuits and connections are used for oil filtration and cooling, then the filtration and cooling functions are improved, but the number of connections and circuit length increase
Solution Approach 1:
The patent combines multiple outlet functions into a single filter housing structure. The first and second outlet ports are integrated into the same housing, allowing both the pump and exchanger to be connected to a single filter component rather than requiring separate filtration and cooling circuits. This merging reduces the total circuit length and number of connections while maintaining both filtration and cooling functions
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 dual-outlet design reduces the number of connections and circuit length, simplifying the lubrication system and enhancing its efficiency and compactness.
Implementation Method 1
a filter medium mounted in the housing cavity... eliminates impurities or particles present in the oil
Data Source
AI summary
An oil filter for vehicle lubrication system includes a housing forming a cavity, a filter medium mounted in the housing cavity, an inlet port located upstream of the filter medium in the direction of oil flow, a first outlet port located downstream of the filter medium. The oil filter includes a second outlet port located downstream of the filter medium.