KR960001915Y1 - Blow-by gas control apparatus of a car - Google Patents

Abstract

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Description

Blow-by-gas control device of car

1 is a block diagram of a conventional blow-by gas control device.

2 is a block diagram of a blow-by gas control device of the present invention.

3 is a longitudinal sectional view of a two-way filter valve, which is a main part of the present invention.

* Explanation of symbols for main parts of the drawings

1: Air filter 2: Air introduction hose

3: throttle body 4: surge tank

5: ventilation hose 6: intake pipe

7: Injector 8: Positive Crankcase Ventilation Valve

9: Ventilation hose 10: Two-way filter valve

11: upper cover 11-1: vent hole

12: top plate 12-1, 12-2: through hole

13: lower plate 13-1, 13-2: through hole

14: lower cover 14-1: ventilation holes

15: filter 16: two-way valve

17: spring 18: umbrella valve

19: guide valve 19-1: through hole

20: packing 21: cylinder

A: Crankcase

The present invention relates to a blow-by gas control device for re-combustion of the blow-by gas generated during combustion of the automobile engine into the intake manifold.

Conventionally, intake pipes in the crankcase (A) for recombustion without recharging the gas leaking compressed gas or expansion gas into the crankcase (A) into the atmosphere during the compression or expansion stroke in the combustion chamber of the automobile engine to the atmosphere. As shown in FIG. 1 as a device for sending back to the air, the intake air is introduced through the air filter 1, the air introduction hose 2, the throttle body 3, the surge tank 4 and the intake pipe 6 The combustion is performed by injecting fuel from the injector (7), and the blow-by gas generated during compression and combustion is blown out through the positive crankcase ventiation valve (8) and the ventilation hose (5). As much as the amount of vise flows into the intake pipe (6), recombustion is carried out, and low pressure intake air is introduced into the crankcase (A), and the blow-by gas is blown through the ventilation hose (9). The unburned fuel and carbon deposits in the gas flowing into the air inlet hose (2) through the ventilation hose (9) are introduced into the airway hose (2), and the throttle position sensor in the throttle body (3). By sticking to the air bypass valve, the air flow can be disturbed and it can cause malfunction of various devices such as poor control of the engine's idle speed when the electric load is operated.

The present invention is equipped with a two-way filter valve (10) for filtering unburned fuel, engine oil and carbon deposits in the middle of the ventilation hose (9) to solve such problems, when the filter life is exceeded As a safety device in preparation for the operation disruption that occurs as a two-way valve (10) in the center of the present invention will be described in detail by the accompanying drawings as follows.

The configuration of the present invention is the positive crankcase ventilation valve in the crankcase (A) in communication with the air filter (1), the air introduction hose (2), the throttle body (3), the surge tank (4), the intake pipe (6) (8) the ventilation hose (5) connected to the intake pipe (6) and the ventilation hose (9) in the blow-by gas control device of the vehicle in communication with the air introduction hose (2) in the middle of the ventilation hose (5) One-touch locking the upper cover 11 protruding upward, the upper cover 11 inclined on the upper surface, and the vent cover 14-1 protruding downward, the main wall bent upward, and the lower cover 14 inclined on the bottom. The upper plate 12 and the lower plate 13 on which the plurality of through holes 12-1 and 13-1 are laid in the housing formed in a fixed manner are placed between the upper plate 12 and the lower plate 13. Blow-by-gas control device of a vehicle equipped with a two-way filter valve 10 is filled.

In addition, both ends of the cylinder 21 into the mouth portion of the through-holes 12-2 and 13-2 installed in the center of the upper plate 12 and the lower plate 13 of the two-way filter valve 10 filled with the electric filter 15. And a two-way valve 16 mounted with a spring 17 for the guide valve 19 on which the through hole 19-1 is installed on the bottom surface of the cylinder 21 and the umbrella valve 18 is installed. .

Referring to the effects of the present invention.

The air sucked in through the air filter (1) is injected into the crankcase (A) in the process of being sucked into the crankcase (A) through the air inlet hose (2), the throttle body (3), the surge tank (4), the intake pipe (6) The blow-by gas generated during compression and combustion is introduced into the intake pipe (6) through the positive crankcase ventilation valve (8) and the ventilation hose (5) to be reburned and cranked. In the case (A), low-pressure intake air is introduced and at the same time some blow-by gas is introduced into the air introduction hose (2) through the ventilation hose (9), where unburned fuel and carbon deposits are introduced into the throttle body (3). This is because the defects in the air flow valve and the air bypass valve are prevented from adhering to the throttle position sensor and air bypass valve. A filter valve (10) will resolve hameuroseo chakseol filtered to the intermediate ventilation hoses (9).

That is, the two-way filter valve in which the filter 15 is integrated between the upper plate 12 and the lower plate 13 of the lower cover 14 in the cylinder 21 in which the vent holes 11-1 and 14-1 are protruded from both ends. If (10) is installed in the middle of the ventilation hose (9), the unburned fuel and carbon deposits in the ejected gas are filtered to facilitate the flow of air.

In addition, if oil or carbon deposits accumulate on the filter 15 and aeration occurs, the filter 15 needs to be replaced. However, even before the replacement, the two-way valve 16 allows gas to pass in both directions so that the crankcase ( When the pressure of A) is constant pressure, the rubber elasticity of the umbrella valve 18 is overcome and pushed through the through hole 19-1 at the bottom of the guide valve 19 to pass the gas toward the air introduction hose 2, and the crank When the pressure of the case (A) is a negative pressure to overcome the load of the spring 17 holding the guide valve 19 to pass air from the air introduction hose (2) into the crankcase (A). At this time, in order to maintain the airtightness of the valve valve 19 and the upper top plate 12, the rubber peking 20 is installed, and also to facilitate the replacement of the contaminated filter 15, the upper cover 11 and the lower cover ( 14) was fixed in the one-touch locking type.

The present invention as described above has an effect that can control the blow-by gas by filtering the unburned fuel or engine oil thermal carbon deposits by mounting a two-way filter valve and a two-way valve in the ventilation hose connecting the crankcase and the air introduction hose. .

Claims (2)

The positive crankcase ventilation valve (8) is sucked into the crankcase (A) in communication with the air filter (1), the air introduction hose (2), the throttle body (3), the surge tank (4), and the intake pipe (6). In the blow-by gas control apparatus of the automobile which connects the ventilation hose 5 connected to the engine 6 and communicates with the air introduction hose 2 through the ventilation hose 9, the ventilation hole 11 is provided in the middle of the ventilation hose 9. -1) protrudes upward, the upper cover 11 and the inlet 14-1 is inclined upwards, the main wall is bent upward, the lower cover 14 inclined in the bottom by one-touch locking method Two-way filling the filter 15 between the upper plate 12 and the lower plate 13 by placing the upper plate 12 and the lower plate 13 on which the plurality of through holes 12-1 and 13-1 are installed. Blow-by-gas control device for a vehicle, characterized in that the installation of the filter valve (10). The inside of the periphery of the through holes 12-2 and 13-2 in the center of the upper plate 12 and the lower plate 13 of the two-way filter valve 10 filled with the electric rotor 15. The two-way valve 16 holding the guide valve 19 on which both ends of the cylinder 21 are fixed, and through holes 19-1 are installed on the bottom surface of the cylinder 21, and the umbrella valve 18 is installed. Blow-by-gas control device of a vehicle characterized in that the mounting.