Oil Separator Case With Vertical Separation Wall
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Solution Overview
Problem
Conventional oil separators for internal combustion engines face challenges in improving oil separation performance when the flow rate of blow-by gas increases, leading to inefficiencies in oil discharge and separation.
Innovation Solution
The oil separator design includes a case with inflow ports, a gas outflow port, and an oil discharge port, featuring a separation wall that divides the case into upstream and downstream passages, with connection passages to enhance oil separation and discharge efficiency, allowing blow-by gas to collide with the separation wall for effective oil separation and discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the flow rate of blow-by gas increases, then the amount of oil contained in the blow-by gas increases, but the oil separation performance of the oil separator deteriorates
Solution Approach 1:
The separation chamber is divided into multiple regions by partition walls, creating distinct flow paths and separation zones. This segmentation allows the system to handle higher volumes of blow-by gas while maintaining effective oil separation through multiple stages of separation rather than relying on a single separation zone.
Solution Approach 2:
The patent introduces a vertical dimension to the separation process by positioning partition walls at different heights and creating multi-level flow paths. This vertical arrangement increases the separation capacity without increasing the horizontal footprint, allowing the separator to handle higher oil loads while maintaining compact dimensions.
2Productivity
If the flow rate of blow-by gas increases, then the oil discharge efficiency decreases, but the device complexity increases
Solution Approach 1:
The patent combines multiple separation functions into an integrated structure where partition walls serve both as flow dividers and as oil collection surfaces. The outlet ports are strategically positioned to simultaneously discharge both gas and separated oil, reducing the need for separate discharge mechanisms and simplifying the overall device structure while maintaining high discharge efficiency.
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 design improves oil separation performance by allowing increased flow rates of blow-by gas and efficient oil discharge, preventing oil from flowing backward and optimizing the pressure drop, thereby enhancing the overall separation efficiency.
Implementation Method 1
When the blow-by gas collides with the separator plate, oil is separated from the blow-by gas. This causes the oil to be discharged from the first port or the second port to the outside of the case.
Implementation Method 2
The blow-by gas that has flowed from the first port or the second port into the case flows through the first opening and the second opening toward the gas discharge port. When the blow-by gas collides with the separator plate, oil is separated from the blow-by gas.
Data Source
AI summary
An oil separator for an internal combustion engine includes a case and a separation wall. The case includes inflow ports into which blow-by gas flows, a gas outflow port, and an oil discharge port. An inside of the case is divided by the separation wall into an upstream passage and a downstream passage. The downstream passage is located on the upper side of the upstream passage. The inflow ports and the oil discharge port are connected to the upstream passage. The gas outflow port is connected to the downstream passage. The inflow ports and the oil discharge port are arranged in a direction intersecting the vertical direction. The separation wall includes one connection passage that connects the upstream passage to the downstream passage on the upper side of the oil discharge port. The separation wall is located on the upper side of the inflow ports.