JPH10196348A - Engine exhaust emission control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device to improve maintainability and durability and reduce cost, in an exhaust emission control device for a vehicle. SOLUTION: A closed type water reservoir 10 is provided. An inlet pipe 11 is inserted in liquid in the water reservoir, and an outlet pipe 12 is arranged at a part above a liquid level in the water reservoir. Further, the other end of an engine outlet pipe 22 is connected to the exhaust port of an engine and exhaust gas is introduced in liquid in the water reservoir. After noxious gas is absorbed by liquid, purified air is discharged through the outlet pipe 12 of the water reservoir to the outside. A vacuum pump 40 is located between an engine outlet pipe and the inlet pipe of the water reservoir, and exhaust gas is forcibly introduced in a liquid layer slightly deeper than a liquid level in the water reservoir. Further, a water cooling system consisting of an auxiliary water reservoir having radiation fins cooled by a fan is disposed in a closed type water reservoir, liquid in a closed type water reservoir is relatively alternated by a pump and a liquid temperature in the closed type water reservoir is decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a closed type water reservoir having a liquid surface set at an appropriate altitude at an appropriate position in a vehicle, and one end of an inlet pipe inserted into the liquid surface of the closed water reservoir. Disposed, the outlet pipe is disposed above the water level of the reservoir so as not to contact the liquid level, and the other end of the inlet pipe is connected to a gas discharge pipe of the engine,
The present invention relates to an engine exhaust gas purifying apparatus that forcibly introduces an exhaust gas of an engine into a liquid of a closed water reservoir to convert it into a purified gas and discharges the purified gas to the outside through an outlet pipe of the closed water reservoir.

[0002]

2. Description of the Related Art In recent years, with the development of commerce and industry, automobiles and auto cycles have grown at a dramatic increase rate, and the quality of air has rapidly deteriorated due to pollution of exhaust gas, which has a serious adverse effect on the living environment. It is becoming. A wide variety of waste gas purifying devices have been researched and developed as measures to prevent air pollution. Among them, many gas purifying devices are equipped with a catalyst in an outlet pipe or a silencer, for example, as disclosed in Japanese Patent Publication No. 162311 (791).
07244), “Waste Gas Purification Device”, Publication No. 16231
No. 2 (801011024), "Secondary Air Introducing Device for Two-Stroke Engine", Publication No. 162783 (7820786)
No. 0), "Exhaust gas purifying method" and publication No. 173840 (79110888), "Exhaust gas purification method and apparatus", and Publication No. 176396 (80206613) "Exhaust gas purification apparatus for motorcycle", publication No. 17934.
No. 6 (80215662) proposes a "waste gas purification device" and the like, and is publicly-announced 161176 (79109864).
A method for achieving complete combustion by mixing light oil into liquefied petroleum gas under pressure has also been developed, as in the "Waste Gas Purification System for Diesel Engines". In addition, the publication No. 58597 (7213345) “Exhaust gas purifying device for automobiles” and the publication No. 141984 (78202038) “Exhaust gas purifying device for automobiles / auto cycles” and the like use exhaust gas filtering means. Has achieved its purpose.

[0003]

The above proposals have the effect of purifying the gas by different and unique structures and features. However, both of them have high manufacturing costs, and have many drawbacks in repeated use over a long period of time. The complicated structure makes maintenance difficult, and the market is difficult to accept due to poor airtightness and the like.

A primary object of the present invention is to simplify the purification process, facilitate maintenance, improve durability in repeated use, and reduce manufacturing and installation costs.

Another major object of the present invention is to directly introduce pollutant gas from an engine directly into the liquid by forcibly introducing the exhaust gas from the engine into the liquid of the closed water reservoir, and then immediately reduce the pollutant gas by the cooling system. An engine that can improve the function of the engine sufficiently by purifying the harmful gas contained in the water with water and discharging it to the outside, and passing it through the water reduces the noise generated when discharging the gas. An object of the present invention is to provide an exhaust gas purification device.

Another object of the present invention is to add a vacuum pump or a device having the same effect, a cooling pipe or a cooling system as necessary to the gas exhaust status of the vehicle, and to effectively reduce the engine displacement. It is another object of the present invention to provide an engine exhaust gas purifying apparatus which can improve the normality of operation and purify the water by appropriately lowering the water temperature in the water reservoir to reach the highest use area.

Still another object of the present invention is to provide an engine exhaust gas purifying apparatus which requires installation of a silencer in a vehicle because the installed closed water reservoir has a silencing function. To do.

[0008]

According to the present invention, there are provided the following:
The gist is the gas purification device according to any one of the above.

[0009]

According to the present invention, a closed water reservoir is provided at an appropriate position in a vehicle, one end of an inlet pipe is inserted and disposed in a liquid surface of the water reservoir, and the other end is connected to a gas discharge pipe of an engine. Further, an outlet pipe is disposed above the liquid level of the water reservoir so as not to come into contact with the liquid level, and when the exhaust gas of the engine is forcibly introduced into the liquid of the water reservoir, it is converted into a purified gas, The gas purified by the outlet pipe of the water reservoir is discharged to the outside.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In an engine exhaust gas purifying apparatus according to the present invention, a closed type water reservoir is disposed at an appropriate position on a vehicle, and a pipeline is provided so that engine exhaust gas can be forcibly introduced into the liquid level of the water reservoir. When the exhaust gas of the engine is introduced into the above-mentioned water reservoir and comes into contact with the water in the water reservoir, the harmful gas contained in the exhaust gas of the engine is absorbed by the water, so that the exhaust gas of the engine is purified. You have achieved your goal. Also, noise generated when the engine exhausts gas is absorbed and reduced when passing through the above-mentioned water reservoir, so that there is no need to attach a silencer.

Therefore, the engine exhaust gas purifying apparatus of the present invention achieves a number of effects, such as the purifying of vehicle exhaust gas and the necessity of a silencer due to reduction of engine noise and quietness.

Next, a typical embodiment of the present invention will be described with reference to the drawings.

For simplicity of description of embodiments of the present invention, similar structural units and accessories are provided with the same reference numerals, and related units are provided with an alphabetic character after the reference number for convenience of comparison. I am offering.

A first embodiment of the present invention will be described. As shown in FIGS. 1 and 2, an engine exhaust gas purifying apparatus according to the present invention includes an engine 20 having an outlet pipe 22.
And a cooler 30 that performs air cooling by a conventionally used fan 21, and an engine 20 including an inlet pipe 251.
, An air cleaner 25 disposed at the air suction port, and a closed water reservoir 10 having an inlet pipe 11 and an outlet pipe 12. The above water reservoir 1
The liquid stored in the tank 0 has a liquid level set at an appropriate height, and the bottom of the water reservoir 10 is formed in a funnel shape so that an outlet pipe 13 and a drain valve 14 allow a precipitate accompanying exhaust gas to be discharged to the outside. Easy to discharge. Further, when the engine gas emission is more smoothly performed or when the outlet pipe of the engine is relatively long, the vacuum pump 40 (between the outlet pipe 22 of the engine and the inlet pipe 11 of the closed type water reservoir 10 may be used, if necessary. Or a device of equivalent effect,
For example, a high-pressure fan) is provided.

As shown in FIG. 2, the second end 110 of the inlet pipe 11 of the water reservoir 10 is inserted at a certain depth below the liquid level in the water reservoir 10 and the outlet pipe 12
Is disposed at a position higher than the liquid level in the water reservoir 10 so as not to contact the liquid level. According to the above configuration of the present invention, the waste gas generated from the engine is forcibly introduced directly into the liquid level in the water reservoir 10, the harmful gas is absorbed by the liquid in the water reservoir 10 and purified, and at this time, the engine Noise is also absorbed and calms down. The purified gas is discharged from the outlet pipe 12 of the water reservoir 10 to the outside.

As described above, the engine exhaust gas purifying apparatus of the present invention achieves a dual effect of purifying air and eliminating noise.

When the installation position of the closed water reservoir 10 is at a short distance from the engine, as shown in FIG.
A similar effect can be obtained if the depth of the inlet pipe 11 inserted into the liquid level of the water reservoir 10 is slightly shortened by omitting 0. Therefore, the use of the vacuum pump 40 in the present invention is not an absolutely necessary unit because it can be selected according to the magnitude of the engine explosive force and the distance between the engine and the water reservoir 10.

When the temperature of the exhaust gas of the engine is high, the cooling pipe 60
If additional cooling pipes (see FIG. 4) are difficult to install or if the inside of the reservoir needs to be cooled more, the water cooling system will be reviewed as shown in FIG. In other words, the closed water reservoir 10 and the liquid in the auxiliary water reservoir 50 are mutually convected by using the auxiliary water reservoir 50 with the heat radiation fins, the fan 51 that cools by driving the engine, and the water pump 52, and are cooled. Water from the pipeline 54 into the closed reservoir 10, and the heated water is pressurized into the auxiliary reservoir 50 by the water pump 52 and the pipeline 55 through the pipeline 53 and cooled. The purpose of the temperature drop in the closed water reservoir 10 is achieved.

If necessary, an appropriate amount of a dissolving agent may be added to the water reservoir 10 to dissolve some unburned substances and harmful gases discharged from the engine by dissolving them. For smoother operation, the water reservoir 10 may be provided with a number of exhaust holes (not shown). In addition, for the purpose of providing a valve for the sewage washing operation in the water reservoir 10, the water reservoir 1
0 inlet pipe 11A and outlet pipe 13
If the solenoid valves 14 and 16 are mounted on the water tank, periodic maintenance can be easily performed, the liquid in the water reservoir 10 is periodically updated, the efficiency of long-term repetitive use is greatly improved, and the maintenance cost is reduced. I do.

[0020]

The engine exhaust gas purifying apparatus according to the present invention can be applied to an automobile, an auto cycle, or other various vehicles using an engine. Large and small, length of piping,
Or a structure that achieves the purpose of purifying engine exhaust gas by forcibly introducing exhaust gas directly into the water in a closed water reservoir, although there is a difference in the necessity of adding a fan device (vacuum pump) and the size of the installed capacity. All fall within the scope of the present invention.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a plan view of the first embodiment of FIG. 1;

FIG. 3 is a plan view showing a second embodiment of the present invention.

FIG. 4 is a plan view showing a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Water reservoir 11 Inlet pipe 12 Outlet pipe 13 Outlet pipe 14,16 Solenoid valve 20 Engine 21 Fan 22 Outlet pipe 25 Air cleaner 30 Cooler 40 Vacuum pump 50 Auxiliary water reservoir 51 Fan 52 Water pump 53 Pipeline 55 Pipeline 60 Cooling Pipe 110 Second end 251 Inlet pipe

Claims (5)

[Claims] 1. A closed water reservoir is provided at an appropriate position on a vehicle, an inlet pipe is inserted from a liquid level in the water reservoir into the liquid, and an outlet pipe is provided above the liquid level in the water reservoir. The outlet of the engine is introduced into the liquid of the reservoir by extending the other end of the outlet pipe and connecting to the exhaust of the engine. After being absorbed,
In a structure that is converted into purified air and discharged from the outlet pipe of the water reservoir to the outside, an appropriate piping distance is provided between the outlet pipe of the engine and the inlet pipe of the water reservoir, and a vacuum pump or an equivalent effect is provided between the two. By installing a device, the exhaust gas of the engine is forcibly introduced from the liquid level of the water reservoir into the liquid layer slightly deeper, and a water cooling system composed of an auxiliary water reservoir attached with a heat radiation fin cooled by a fan is installed in the closed water reservoir. An engine exhaust gas purifying apparatus characterized by being arranged so that the liquid in the auxiliary water reservoir and the liquid in the closed water reservoir are mutually exchanged by a pump to lower the temperature of the liquid in the closed water reservoir. 2. The engine exhaust gas purifying apparatus according to claim 1, wherein a water tap for refilling the closed water reservoir with fresh liquid and a discharge tap at the bottom of the water reservoir are provided. . 3. The engine exhaust gas purifying apparatus according to claim 1, wherein the operation of the engine is used as a power source of a vacuum pump. 4. The engine exhaust gas purifying apparatus according to claim 1, wherein a cooling pipe is further provided in the closed type water reservoir to lower the liquid temperature in the water reservoir. 5. The engine exhaust gas purifying apparatus according to claim 2, wherein the opening and closing of the water tap and the waste water tap are operated by a solenoid valve.