Oil Separator With Primary Secondary Chambers
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Solution Overview
Problem
Conventional oil separators have a divided structure that results in a larger device size due to sideways gas discharge and require improvement in separation efficiency.
Innovation Solution
The oil separator is partitioned into a primary and secondary separation chamber, where the primary chamber handles initial oil mist separation and the secondary chamber focuses on secondary separation, allowing for a compact design and enhanced efficiency with reduced separation discs and disc diameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the drive space and separation space are divided into separate chambers with sideways gas discharge, then the rotating mechanism can be properly housed and driven, but the device size increases due to the protruding discharge structure
Solution Approach 1:
The patent merges the drive space and separation space into a single integrated housing chamber, eliminating the need for separate chambers and sideways discharge structures. The rotating separation mechanism operates directly within the same space where gas is introduced and processed, consolidating functions and reducing overall device volume.
Solution Approach 2:
The housing chamber serves multiple functions simultaneously: it houses the rotating separation mechanism, provides the separation space for oil mist removal, and acts as the gas discharge path. This multi-functional design eliminates the need for dedicated separate spaces for each function, thereby minimizing device size.
2Volume of moving object
If a single separation chamber is used, then the device size is minimized, but the separation efficiency of oil mist is insufficient
Solution Approach 1:
The patent segments the separation process into multiple stages by incorporating multiple separation discs with different diameters and rotation speeds within the single housing chamber. The counter-rotating discs create alternating centrifugal and dec centrifugal force fields that progressively separate oil mist from gas, achieving high separation efficiency without requiring multiple separate chambers.
Solution Approach 2:
The patent introduces rotational motion as an additional dimension to the separation process. By rotating the separation discs in opposite directions, the system creates dynamic centrifugal force fields that enhance separation efficiency beyond what a static single-chamber design could achieve, effectively adding a temporal and kinetic dimension to the separation mechanism.
3Productivity
If multiple separation discs are used to improve separation efficiency, then oil mist separation performance increases, but the device size and complexity increase
Solution Approach 1:
The patent makes the separation discs dynamic by rotating them in opposite directions at different speeds. This dynamic configuration allows multiple separation stages to be achieved within a compact space, as the rotating discs utilize centrifugal force to enhance separation without requiring additional static separation chambers or structures.
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 improves separation efficiency while minimizing the device size, achieving approximately 70% primary separation and 95% total separation efficiency with fewer and smaller separation discs.
Implementation Method 1
a part of the gas being the target of treatment comes into contact with the oil which has been injected from the nozzle for the oil mist to be taken into the oil
Implementation Method 2
the oil mist is primarily separated
Implementation Method 3
separates oil mist using centrifugal force created by a rotating member arranged between the inlet and the outlet for the gas
Implementation Method 4
the oil that has been injected from the nozzle flows downward by being sprayed against the inner face of the tapered part
Data Source
Figure 1
Figure 2
Figure 3A~3D
AI summary
Minimization is allowed while improving the separation efficiency in an oil separator that separates from gas oil in a mist form included in a blow-by gas. The oil separator according to the present invention includes a plurality of separation discs that are provided rotatable together with a spindle and layered in an axis direction of the spindle, a nozzle that is provided to protrude from a lower circumferential face of the spindle and configured to rotate the spindle by injection of an oil, a lower case that is provided with a gas inflow part into which blow-by gas flows and an oil discharge part into which an oil after separation is discharged, an upper case that sections together with the lower case a housing chamber in which the spindle, the separation discs and the nozzle are housed, and a sectioning member that sections the housing chamber into a primary separation chamber configured to primarily separate the oil mist and into a secondary separation chamber that secondarily separates the oil mist included in the gas being the target of treatment after primary separation, and forms between the nozzle and the separation discs a communication opening that guides the gas being the target of treatment.