KR20030016847A - an oil seperator for blow-by gas of vehicles - Google Patents

Abstract

PURPOSE: An oil separator of blow-by gas for a vehicle is provided to circulate blow-by gas actively by automatically separating oil from a filter in sticking impurities and oil to the filter, and to cut down replacement expenses by extending the replacement cycle. CONSTITUTION: An oil separator for blow-by gas of a vehicle is composed of a housing(110) having an inlet(111), an outlet(112) and a drain passage(113); a filter fixing body(120) installed in the lower part of the housing with rotating; a filter(121) installed in the filter fixing body; a motor(130) rotating the filter fixing body; a pressure regulating chamber(140) rising in increasing pressure of gas in the housing; a diaphragm(142) opening in lifting the pressure regulating chamber; a switch(150) turned on with lifting the pressure regulating chamber; and a relay(170) supplying current from a battery(160) to the motor in turning on the switch. Blow-by gas is circulated actively with automatically separating oil from the filter in sticking the large amount of oil to the filter.

Description

An oil seperator for blow-by gas of vehicles

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blowby gas oil separator of an automobile, and more particularly, to a blow by gas oil separator of an automobile such that the filter is not blocked by oil contained in the blow by gas.

Generally, some amount of exhaust gas or a mixture leaks from the combustion chamber into the crankcase while the engine is running. As a result, the engine oil becomes thin or deteriorated due to heat, moisture of the combustion gas, gasoline, etc., and sludge occurs. In order to prevent this, in the past, a breather was installed in a crankcase and released into the atmosphere. However, since the combustion gas contains a large amount of hydrocarbons, which is a source of air pollution, it is now forcibly introduced into the intake machine and sent to the combustion chamber for recombustion. The gas is called blow-by gas.

Meanwhile, the blow-by gas includes engine oil while staying in the engine. When the engine oil is supplied to the combustion chamber together with the blow-by gas, the combustibility of the fuel is lowered. It is necessary to remove the engine oil contained in.

Therefore, as illustrated in FIG. 1, the oil separator 20 is installed in the circulation path of the blow-by gas to separate the oil in the gas.

That is, the blow-by gas (gas + oil) coming from the engine passes through the oil separator 20, the oil is separated by the filter 21 in the oil separator 20, the separated oil is separated from the engine 10 Return to the oil pan and the gas is recycled to the intake cylinder in the upper part of the engine (not shown 30 is a check valve).

On the other hand, as time passes, the amount of impurities adsorbed in the oil is increased in the filter 21, and the adsorption of the blow-by gas prevents the circulation of the blow-by gas, thereby preventing the circulation. When the gas pressure in the oil separator 20 is increased when it is interrupted, the spring is operated, and the driver recognizes this by protruding the indicator by the force of the spring and replaces the filter 21.

In addition, since the impurities act like oil absorbed in the filter 21 to inhibit the passage of the blow-by gas, even though the filter 21 can adsorb a larger amount of impurities, The filter 21 had to be replaced for the passage.

Therefore, in order for the driver to replace the filter 21 in a timely manner, there is an inconvenience in that it is necessary to constantly check whether the indicator protrudes, and the replacement of the filter 21 itself is cumbersome, and the filter 21 is replaced with the original. There was a problem in that the required cost is increased because it must not be used as long as the life.

Accordingly, the present invention has been made in order to solve the above problems, when the excessive circulation of the impurities and oil in the filter to interfere with the circulation of the blow-by gas, the oil is automatically separated from the filter by the blow-by gas The filter can be circulated smoothly and the filter can be used until the impurities are adsorbed more and the oil is removed from the filter, until the circulation of the blow-by gas is interrupted or the impurity filtration function of the oil is lowered. The purpose is to provide a blowby gas oil separator in an automobile, in which a long cycle can be eliminated, and replacement costs can be reduced.

1 is a conceptual view illustrating a circulation of blow-by gas and a conventional oil separator;

2 is a cross-sectional view of an oil separator according to the present invention.

* Description of the symbols for the main parts of the drawings *

110: housing, 111: inlet,

112: discharge port, 113: drain passage,

120: filter fixing body, 121: filter,

130: motor, 140: pressure control chamber,

141: the first spring, 142: the diaphragm,

143: second spring, 150: switch,

160: battery, 170: relay,

180: bearing.

The present invention for achieving the above object, the housing, a filter fixing body rotatably installed in the inner lower portion of the housing, a filter mounted on the filter fixing body, a motor for rotating the filter fixing body, A pressure regulating chamber that rises upward when the gas pressure rises, a diaphragm that opens when the pressure regulating chamber rises, a switch that is turned on by the rise of the pressure regulating chamber, and the switch is turned on It is configured to include a relay for supplying a current of the battery to the motor.

Therefore, when blow-by gas becomes difficult to pass through the filter and the pressure in the housing rises, the pressure regulating chamber rises to turn on the switch, and then a relay is connected to supply a current to the motor to rotate the filter, thereby allowing oil from the filter to flow. Will be separated.

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

Figure 2 shows a blowby gas oil separator of a vehicle according to the present invention, the housing 110 is the inlet 111 and the oil flows the blow-by gas (state containing oil) on both sides of the cylindrical upper body A discharge port 112 through which the removed blow-by gas is discharged is formed, and a drain passage 113, which is a passage through which the oil removed from the blow-by gas exits and returns to the oil pan of the engine, is formed.

A disk-shaped filter fixing body 120 is installed at an inner lower end of the housing 110 to protrude to the outside of the housing 110 in a state in which a shaft formed at the center thereof is supported by the bearing 180. 120 is connected to the motor 130 outside the housing 110.

In addition, a cylindrical filter 121 is mounted on an upper surface of the filter fixing body 120, and a pressure control chamber in which upward movement is suppressed by a first spring 141 built in the upper part of the filter 121. 140 is provided, and the diaphragm 142 is provided at the upper portion of the pressure regulating chamber 140, and an agent for suppressing the upward deformation of the diaphragm 142 between the diaphragm 142 and the upper end of the housing 110. A two-spring 143 is provided, the switch 150 is pressed on the upper end of the housing 110 by the central protrusion of the pressure control chamber 140, the switch 150 is the battery 160 and the In order to electrically connect the motor 130, a relay 170 is installed between the switch 150 and the motor 130 when the switch 150 is turned on.

In addition, the drain passage 113 is provided with a check valve 180 to prevent the back flow of the discharge oil.

Hereinafter, the operation of the oil separator will be described.

When the filter 121 is in the normal state, the blow-by gas containing the oil enters the inlet 111 and passes through the filter 121 to filter the oil, and then discharged through the outlet 112, and the filtered oil is It is discharged through the drain passage 113 at the bottom.

On the other hand, when the filter 121 is in a state in which a large amount of oil is absorbed and does not pass blow-by gas properly, the internal pressure of the housing 110 is increased, and the pressure regulating chamber 140 is driven by the pressure. The spring 141, the diaphragm 142, and the second spring 143 are raised while being compressed, and a central protrusion thereof is pressed on the switch 150.

As such, when the switch 150 is turned on, the power of the battery 160 is applied to the relay 170, and the relay 170 is connected to supply power to the motor 130, thereby rotating the filter holder 120. The filter 121 attached thereto is also rotated at the same time, so that the oil absorbed by the centrifugal force is separated from the filter 121.

When the oil is separated from the filter 121 as described above, the filter 121 is able to pass the blow-by gas smoothly again, so that the filter 121 can be continuously used without being replaced with a new one. If the contamination is increased by impurities in the oil, replace it with a new one.

As described above, according to the present invention, when the amount of oil adsorbed to the filter is increased so that the blow-by gas cannot pass through the filter, the oil is automatically separated from the filter, so that the blow-by gas can be smoothly circulated. Since the filter can be used for a long time, the replacement cycle of the filter is long, which eliminates the trouble of replacement and reduces the replacement cost.

Claims (3)

A housing 110 having a blow-by gas inlet 111, an outlet 112, and a drain passage 113 formed therein; a filter fixing body 120 rotatably installed at an inner lower side of the housing 110; A filter 121 mounted on the stag 120, a motor 130 for rotating the filter holder 120, and a pressure regulating chamber 140 rising upward when the gas pressure in the housing 110 rises. And the diaphragm 142 opened when the pressure regulating chamber 140 is raised, the switch 150 turned on by the rising of the pressure regulating chamber 140, and the switch 150 being turned on. Blow-by-gas oil separator of a vehicle is configured to include a relay 170 is operated to supply the current of the battery 160 to the motor (130). According to claim 1, wherein the filter fixing body 120 has a disk-like shape having a shaft in the center, the shaft protrudes out of the housing 110 in a state supported by the bearing 180, Blow by gas oil separator of a vehicle, characterized in that the motor 130 is connected to the end. The method of claim 1, wherein the first spring 141 to suppress the rise of the pressure control chamber 140, and the second spring 143 for suppressing the upward deformation of the diaphragm 142 is provided. Blow-by-gas oil separator in cars.