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Oil-gas separator and control method thereof

A technology of an oil-gas separator and a control method, which is applied in the direction of machines/engines, crankcase ventilation, mechanical equipment, etc., can solve the problems of large volume, increased occupied space, and high cost of a centrifugal oil-gas separator, so as to ensure the separation effect, The effect of improving the efficiency of oil and gas separation

Active Publication Date: 2022-02-11
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current oil and gas separators generally fall into the following categories: centrifugal oil and gas separators, volumetric oil and gas separators, cyclone oil and gas separators and baffle type oil and gas separators. Among them, centrifugal oil and gas separators are relatively expensive and bulky. ; Although volumetric oil-gas separator, cyclone-type oil-gas separator and baffle-type oil-gas separator all have the advantage of lower cost, the separation effect is relatively poor
[0005] In order to solve the above technical problems and achieve high-efficiency filtration, the prior art usually adopts the method of connecting multi-stage non-centrifugal separators in series, but it will increase the occupied space and increase the pressure of the crankcase, which will affect the performance and reliability of the engine.

Method used

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  • Oil-gas separator and control method thereof
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  • Oil-gas separator and control method thereof

Examples

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Embodiment 1

[0051] This embodiment provides an oil-gas separator, which can be a labyrinth-type oil-gas separator or a cyclone-type oil-gas separator, but is not limited to these two types of oil-gas separators. In this embodiment, a cyclone-type oil-gas separator is taken as an example to introduce the structure of this type of oil-gas separator.

[0052] likefigure 1 As shown, the cyclone oil-gas separator includes a separator body 11, the separator body 11 has a separation chamber 110, and an air outlet 112, an air inlet 111, and an oil return port 113 that are all communicated with the separation chamber 110, and the oil return port 113 is provided At the bottom of the separator body 11 , one of the air inlet 111 and the air outlet 112 is located at the upper part of the separator body 11 , and the other is located at the lower part of the separator body 11 . Exemplarily, the air outlet 112 and the air inlet 111 are located on the same side of the separator body 11 and the air outlet ...

Embodiment 2

[0096] The difference between this embodiment and Embodiment 1 is that the oil-gas separator is a baffle-type oil-gas separator, also known as a labyrinth-type oil-gas separator.

[0097] Specifically, the inner wall of the separation chamber 110 is provided with a labyrinth channel, two ends of the labyrinth channel communicate with the air outlet 112 and the air inlet 111 respectively, and the oil return port 113 communicates with one end of the labyrinth channel.

[0098] By setting up a labyrinth channel, the contact area between the oil-gas mixture and the oil-gas separator is increased, and at the same time, the flow direction of the fluid is forced to change, so that the oil mist in the fluid is separated into oil under the impact of inertia, and the separation efficiency of the oil-gas separator is improved. .

[0099] Exemplarily, as Figure 5 As shown, the inner peripheral wall of the separation chamber 110 is protruded with a plurality of first baffles 12 , and the...

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Abstract

The invention relates to the technical field of oil-gas separation, and discloses an oil-gas separator and a control method thereof. According to the oil-gas separator and the control method thereof, a temperature detection unit and a heat exchange unit are arranged, the temperature of fluid in a separation cavity of the oil-gas separator is detected through the temperature detection unit, and when the temperature of the fluid in the oil-gas separator is high, on the basis that oil-gas separation is conducted through the oil-gas separation principle of the oil-gas separator, the heat exchange unit is controlled to cool fluid in the separation cavity, oil mist in oil-gas mixed gas is rapidly condensed into oil liquid through the physical characteristics of cooling and condensation, the oil-gas separation efficiency is improved, and the separation effect is guaranteed.

Description

technical field [0001] The invention relates to the technical field of oil-gas separation, in particular to an oil-gas separator and a control method thereof. Background technique [0002] When the engine is running normally, a part of the unburned combustible mixture and combustion exhaust gas in the cylinder will escape into the crankcase through many ways. These blow-by gases will increase the temperature of the fluid in the crankcase and increase the evaporation of the oil in the oil sump. Since some parts in the crankcase are lubricated by splashing, the mixture of oil mist generated by splashing lubrication in the crankcase, oil vapor evaporated at high temperature and cylinder blow-by gas will form most of the ultra-fine aerosols with a particle size of less than 1 μm. , so that oil-air mixture is produced in the crankcase blow-by gas, which affects the lubrication effect of the parts in the crankcase. [0003] For this reason, the crankcase is usually equipped with...

Claims

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Application Information

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IPC IPC(8): F01M13/04
CPCF01M13/04F01M2013/0461F01M2013/0411F01M2013/0472
Inventor 黄继轩汤海威李伟孙铃
Owner WEICHAI POWER CO LTD