KR20080093655A - Filter exchange type of oil separator - Google Patents

Abstract

A filter exchangeable cyclone type oil separator that is capable of improving collection efficiency while maintaining economic efficiency is provided. An oil separator comprises: a cyclone type body(1); nonwoven fabric type exchangeable filters(2) installed in the body; and one or more flow guiding blades(3) formed on outer peripheries of the nonwoven fabric type exchangeable filters to maximize the separation of oil by increasing flow rate of oil particles and colliding the oil particles with a wall face of the body. The nonwoven fabric type exchangeable filters are made of a single ply or triple plies of nonwoven fabric and are exchangeable, and the flow guiding blades have oil discharge holes(4) which are formed on bottom parts thereof, and through which collected oil is discharged.

Description

Filter Exchange Type of Oil Separator

1 is a cross-sectional view of a discharge device according to the present invention.

2 is a cross-sectional view of the blade which is the discharge device according to the present invention.

Figure 3 is a schematic configuration diagram for explaining a conventional blowby gas oil separator.

※ Explanation of code for main part of drawing

1: cyclone body

2: exchangeable filter

3: blade

4: oil drain hole

The present invention relates to a device for separating fine oil particles contained in the blowby gas flowing out of the engine and reducing it back to the engine. The cyclone method using the principle of centrifugation, which has been applied previously, is contained in the blowby gas. There is a limit to the complete separation of oil particles. Accordingly, the present invention aims to improve the separation ability of oil particles in blow-by gas by adding a filter without any technical development.

Blow-by gas is a blow-by phenomenon called the leak-by phenomenon of a small amount of the mixture gas leaking into the gap between the cylinder wall and the piston during the compression stroke in each cylinder of the engine, the blower gas.

The blow-by phenomenon cannot be prevented because the gap between the cylinder wall and the piston cannot be completely sealed. These blow-by gases contain a significant amount of oil particles because they pass between the oil-filled cylinder wall and the piston ring, and contain unburned carbon as the unburned gas leaks. Emission of blow-by gas containing these substances into the general atmosphere is a problem of environmental pollution, and by law, all engines for passenger and commercial vehicles recycle such blow-by gas into the combustion chamber to be re-burned.

In addition, the oil contained in the blow-by gas is separated and drained to the crankcase shaft to reduce the harmful exhaust gas caused by the oil consumption and the recirculation of the oil, and the blow-by gas separated from the oil is discharged through the intake manifold. Reburning within is the basis for separating oil particles in the blow-by gas.

However, these products have a disadvantage in that the price is high because the performance is not so high and they depend on the whole quantity.

Therefore, in the present invention, an oil separator of a filter exchange type cyclone method, which is invented to solve the above disadvantages and which can increase the efficiency while being economical, was manufactured.

In order to achieve the above object, the present invention uses a multi-stage nonwoven fabric type exchange filter having a high collecting efficiency of oil particles, and installs a flow guide blade so that the oil particles collide and are discharged downward.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of the discharge device according to the present invention, Figure 2 is a cross-sectional view of a blade which is the discharge device of the present invention.

Figure 3 is a schematic configuration diagram for explaining a conventional blowby gas oil separator.

In FIG. 1, the blow-by gas introduced from the engine is primarily separated by oil by a blade, and is secondly separated by centrifugal force through a cyclone structure, and finally, through a multi-layered nonwoven filter. Filter out residual oil particles. The oil collected and accumulated in the multi-layer non-woven exchangeable filter is discharged to the bottom hole, all the oil flowing down through the separated oil and the wall is discharged downward and the blow-by gas without oil is discharged upward. A cross-sectional view of the separator is shown.

FIG. 2 is a cross-sectional view of the blade which is the oil separation device of FIG. 1, in which the flow of blow-by gas flowing from the engine is accelerated by narrowing the cross-sectional area of the blade and hitting each wall to increase the separation performance of the oil contained in the blow-by gas. It works.

In FIG. 3, the blowby gas introduced from the engine in the conventional manner is separated by oil by a cyclone oil separator, and the separated oil flows downward and is supplied to the engine again, and the blowby gas from which the oil is removed is discharged upward. A schematic diagram of the recirculation of the engine through the engine intake is shown.

As described above, the present invention separates the oil particles through a process of separating the oil particles using a blowby gas flowing from the engine through a three-step oil separation process and using a blade and a nonwoven fabric type exchange filter. Maximize efficiency

Claims (2)

Oil separation efficiency by using non-woven type exchange filter (2) in cyclone type body (1) and installing one or several blades (3) in the flow guide to increase the flow rate of oil particles and hit the wall Oil Separation Device Maximized. The nonwoven fabric type exchange filter (2) is composed of a simple or three-ply nonwoven fabric and is replaceable, and is capable of discharging the collected oil through the oil discharge hole (4). Oil separator

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