Crankshaft Anti-Splash Device Oil Sump Segmentation
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Solution Overview
Problem
Internal combustion engines experience power losses due to crankshaft splashing and counterweight friction in the oil sump, exacerbated by oil displacement during vehicle motion, leading to inefficiencies and oil aeration.
Innovation Solution
An anti-bubble device that divides the oil sump into compartments, using a separation element and evacuation element to collect and direct lubricating oil from moving parts, guiding it under the crankshaft counterweights to reduce friction and prevent oil aeration, with a semi-cylindrical shape and anti-lift feature to manage oil flow effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the crankshaft rotates in the oil sump, then lubrication of moving parts is achieved, but power losses occur due to crankshaft splashing and counterweight friction in the oil layer
Solution Approach 1:
The oil sump is divided into two compartments by a separator element: a first compartment where oil is collected from moving parts, and a second compartment where oil is discharged back into the sump. This segmentation prevents direct contact between the crankshaft counterweights and the oil layer, reducing splashing and friction losses while maintaining lubrication functionality.
2Productivity
If the vehicle is in motion, then the engine operates, but crankshaft splashing is accentuated by oil displacement in the oil pan
Solution Approach 1:
By dividing the oil sump into separate compartments, the invention isolates the oil collection area from the discharge area. The separator element creates a controlled flow path that prevents oil displacement and splashing caused by vehicle motion, allowing the engine to operate efficiently without excessive crankshaft splashing.
3Reliability
If oil is collected from moving parts, then lubrication is maintained, but oil aeration occurs due to prolonged contact with moving parts
Solution Approach 1:
The separator element creates distinct zones for oil collection and discharge. Oil is collected from moving parts in the first compartment, then channeled through a controlled path to the second compartment for discharge back into the sump. This segmented approach minimizes the time and extent of oil contact with moving parts, reducing aeration while maintaining lubrication.
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
Significantly reduces power consumption by the oil pump and limits oil aeration, enhancing engine efficiency and prolonging oil longevity by minimizing contact between oil and moving parts.
Implementation Method 1
an oil drain member for to lead said oil collected from the first compartment to the second compartment under the action of said crankshaft
Data Source
Figure 1~3
AI summary
The invention relates to an anti-splash device (5) for a crankshaft (12) located in an internal combustion engine (1), comprising: an element (6a) for dividing an oil pan (2) of the engine (1) into first and second compartments (4a, 4b), said element being suitable for collecting engine (1) lubricating oil (15) from mobile parts of the engine (1); and an element (6b) for removing the oil (15), allowing the oil (15) collected from the first compartment (4a) to be guided towards the second compartment (4b) under the action of said crankshaft (12).