KR20210001060A - The exhaust fumes reduction device for internal combustion engine of automobile - Google Patents

Abstract

The present invention relates to an exhaust gas reducing apparatus for an internal combustion engine of a vehicle and, more specifically, to an exhaust gas reducing apparatus for an internal combustion engine of a vehicle, capable of promoting an improvement in output and an improvement in fuel efficiency by controlling a discharge flow of exhaust gas, being additionally mounted at an end of an exhaust line of a vehicle. The exhaust gas reducing apparatus for an internal combustion engine of a vehicle includes: a housing pipe continuing a discharge flow of exhaust gas, being connected with an end tail pipe of a muffler of a vehicle; and a vortex pipe installed in the housing pipe and having a vane leading the exhaust gas flowing through the housing pipe to be discharged in a spiral form. The vortex pipe includes: a front end part of a predetermined length, forcibly inserted into a predetermined position inside the housing pipe; and a vane cut in a square form up to the front end part, and bent inward along a diagonal line.

Description

The exhaust fumes reduction device for internal combustion engine of automobile {THE EXHAUST FUMES REDUCTION DEVICE FOR INTERNAL COMBUSTION ENGINE OF AUTOMOBILE}

The present invention relates to an exhaust emission reduction device for an internal combustion engine of an automobile, and more particularly, to an automobile internal combustion engine capable of improving output and fuel economy by controlling the discharge flow of exhaust gas in a state additionally installed at the end of an exhaust line of a vehicle. It relates to an emission reduction device.

In modern society, the number of automobiles is increasing, but as interest in the environment gradually increases, interest in various environmental destructive factors occurring in automobiles is also increasing.

Accordingly, research on exhaust noise and emission reduction in automobile development is being actively conducted, and regulations for reducing greenhouse gas emission and suppressing the occurrence of harmful factors are further strengthened.

In accordance with these policies, attention has been focused on the design of exhaust systems when manufacturing automobiles. In particular, mufflers (mufflers) make exhaust noise and high-temperature and high-pressure exhaust gases into low-temperature and low-pressure gases. It plays a role of reducing

On the other hand, a vehicle using an internal combustion engine obtains power by four cycles of suction, compression, explosion, and exhaust, as is well known. Looking at the flow of air (intake, exhaust) in the above strokes, in the suction process When passing through an air cleaner, throttle valve, etc., inflow occurs without relatively great resistance.

However, in the exhaust process, since it is discharged to the outside through an exhaust manifold, an air purifier using a catalyst, and a tailpipe (exhaust pipe) of the muffler, considerable resistance to the exhaust flow occurs.

In addition, in the process of being discharged from the cylinder of the internal combustion engine to the tail pipe of the silencer, in the exhaust manifold, the so-called valve overlap occurs in which the intake valve and the exhaust valve are momentarily opened simultaneously during the four strokes of the internal combustion engine. In addition, a phenomenon in which the gas discharged during this process is re-introduced into the cylinder occurs, and a vacuum state is instantaneously formed in the exhaust manifold, thereby forming a primary exhaust pressure that hinders exhaust gas discharge.

And, in the three-dimensional catalyst device, which is an air purifier, the flow velocity of the exhaust gas is significantly reduced while passing through the fine ventilation holes of the honeycomb-type exhaust gas purifier, thereby forming a secondary exhaust pressure. When it is absorbed around the partition, a tertiary exhaust pressure is formed.

Due to the resistance of the exhaust process, the combustion gas of the internal combustion engine cannot be discharged smoothly, and thus about 20 to 25% of the output is reduced. Accordingly, it is possible to improve the output of the internal combustion engine and improve the fuel economy simply by smoothly discharging the exhaust gas.

In order to somewhat solve these problems, Korean Patent Laid-Open Publication No. 10-2000-0056951 uses airflow according to driving of a vehicle to combine a streamlined exhaust port body with a tail pipe to pass air passing through the streamlined exhaust port body. Exhaust boxes of automobiles have been disclosed that use the flow of air to form a low-pressure area according to the flow velocity of the vehicle and to aid exhaust gas by rapidly being sucked out by this low pressure, but the streamlined exhaust port body as described above is attached to the vehicle. There is a problem that it is difficult to commercialize it due to structurally large and complicated disadvantages.

In addition, in Korean Patent Registration No. 10-0257874, a conduit for introducing external air is separately added to the front end of a silencer formed in the exhaust gas path, and a vane that forms a vortex for the inflow of outside air into the conduit ( vane) has been disclosed, and an exhaust gas discharge device using a vortex has been disclosed by forming a damper for controlling the inflow of outside air so as to be in sync with the opening degree of the throttle valve. Since the sub-duct is formed, exhaust noise leaks into the sub-duct to generate severe noise, and since it constitutes a damper for external air control interlocking with the throttle valve of the internal combustion engine, the facility structure and facility become complicated.

In addition, the prior art has a problem in that it is difficult to manufacture and attach by twisting and attaching the vanes to a certain angle in forming the vanes.

(Document 1) Registered Patent Publication No. 10-1907139 (registered on October 4, 2018) (Document 2) Registered Patent Publication No. 10-1640379 (registered on July 12, 2016) (Document 3) Unexamined Patent Publication No. 10-2018-0120917 (published on November 7, 2018) (Document 4) Registered Patent Publication No. 10-1882834 (registered on July 23, 2018)

An object of the present invention is to solve the above problems, and to provide an exhaust gas reduction device for an internal combustion engine of a vehicle capable of increasing fuel efficiency by reducing fuel consumption by increasing the exhaust performance of exhaust gas emitted through a vehicle muffler. have.

Another object of the present invention is to provide an exhaust gas reduction device for an automobile internal combustion engine capable of reducing exhaust gas emission due to delayed emission of exhaust gas by increasing the exhaust gas discharge rate by allowing exhaust gas to be discharged by a plurality of vanes. have.

Another object of the present invention is to provide an exhaust emission reduction device for an internal combustion period of a vehicle that is easy to manufacture and can be easily applied to a housing.

In order to achieve the above object, the present invention provides a housing pipe that connects to a muffler end tail pipe of a vehicle and continues the exhaust flow of exhaust gas, and an exhaust gas that is mounted inside the housing pipe and passes through the housing pipe. In the exhaust gas reduction device for a vehicle internal combustion engine comprising a vortex pipe having a vane to be discharged in a spiral, the vortex pipe, the front end of a predetermined length that is forcibly fitted to a predetermined position inside the housing pipe; And a vane that is cut to the front end in a rectangular shape and bent inwardly along a diagonal line. It provides an exhaust emission reduction device for an internal combustion engine of an automobile.

In the present invention, the vane is characterized in that it is formed to be bent inward by cutting only a part of the diagonal line so as not to disconnect the connection.

In the present invention, the upper end of the tip portion is characterized in that it further includes a flow piece that is cut to be bent outward so as to fluidly correspond to the diameter of the vortex tube.

The exhaust gas reduction apparatus for an internal combustion engine of an automobile of the present invention has an effect of increasing an exhaust speed by allowing exhaust gas discharged to the outside through a muffler of an automobile to be discharged by generating a spiral vortex.

In addition, since the exhaust gas is rapidly discharged, the exhaust gas emission reduction device of the present invention has the advantage of increasing the exhaust gas emission efficiency and reducing the generation of soot due to the delay in exhaust gas emission.

In addition, without a separate driving device, by inducing smooth exhaust of exhaust gas by using the flow of air naturally generated while driving a vehicle, the exhaust performance and energy efficiency of the engine are improved, and various parts installed in the intake and exhaust systems are It helps the function, improves the durability of parts, and reduces exhaust noise.

In addition, the present invention has the advantage of simple manufacturing of the vane, so that the manufacturing of the smoke reduction device is simple and the manufacturing cost is low.

1 is a perspective view showing an exhaust emission reduction device for a vehicle internal combustion engine according to the present invention.
Figure 2 is a perspective view showing a vortex pipe of the exhaust emission reduction device for a vehicle internal combustion engine according to the present invention.
Figure 3 is a perspective view of the flow piece bent outward in the vortex pipe of the exhaust emission reduction device for an automobile internal combustion engine according to the present invention.
4 is a plan view of the moving piece of FIG. 3 bent outward.
Figure 5 is a side view showing a step of manufacturing a vortex tube of the exhaust emission reduction device for an internal combustion engine vehicle according to the present invention.
Figure 6 is a cross-sectional view showing the working relationship of the exhaust gas discharge flow of the exhaust gas emission reduction device for a vehicle internal combustion engine according to the present invention.
7 is a state diagram showing a state in which the exhaust emission reduction device for a vehicle internal combustion engine according to the present invention is mounted on a vehicle.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. First of all, in adding reference numerals to elements of the drawings, it should be noted that the same elements have the same numerals as possible even if they are indicated on different drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

1 is a perspective view showing a smoke reduction device for a vehicle internal combustion engine according to the present invention, Figure 2 is a perspective view showing a vortex pipe of the smoke reduction device for a vehicle internal combustion engine according to the present invention, Figure 3 is a vehicle internal combustion according to the present invention Fig. 4 is a perspective view of the vortex pipe of the engine smoke reduction device bent outward, and Fig. 4 is a plan view of the flow piece of Fig. 3 bent outward, and Fig. 5 is a vortex pipe of the smoke reduction device for an automobile internal combustion engine according to the present invention. Is a side view showing the steps of manufacturing, and Figure 6 is a cross-sectional view showing the working relationship of the exhaust gas discharge flow of the exhaust gas emission reduction device for a vehicle internal combustion engine according to the present invention, Figure 7 is a smoke reduction device for a vehicle internal combustion engine according to the present invention It is a state diagram showing a state mounted on a vehicle.

As shown in Fig. 1, the exhaust gas reduction device 1 for an internal combustion engine of an automobile according to the present invention is connected to the muffler end tail pipe 2-1 of the vehicle 2 and continues the exhaust flow of exhaust gas. It is configured to include a housing tube 10 and a vortex tube 20 mounted inside the housing tube 10 and having a shape capable of generating a vortex so that the exhaust gas passing through the housing tube 10 is rotated and discharged. .

The housing tube 10 is a means for efficiently proceeding the exhaust gas discharge flow at the end of the tail pipe 2-1 of the vehicle 2, as shown in FIG. 1, 4 of the internal combustion engine of the vehicle A discharge pipe that completes the flow of exhaust gas discharged to the outside through the tail pipe (2-1) by the exhaust stroke during the stroke, and has a constant diameter from the tip to the end connected to the tail pipe (2-1) Have. If necessary, the diameter of the upper side may be large and the diameter of the lower side may be small. That is, when the housing tube 10 is inserted into the tail pipe, it is formed to have a constant diameter smaller than the diameter of the tail pipe, and when the housing tube 10 is inserted outside the tail pipe, it is fastened so that it can be inserted outside. The diameter of the portion may be formed equal to or larger than the outer diameter of the tailpipe.

Specifically, the housing tube 10 is composed of a housing tube body 11 and a bolt hole 12 formed at a fastening portion of the body.

The vortex pipe 20 is for controlling the exhaust flow so that the exhaust gas discharged through the housing pipe 10 rotates while generating a flowing eddy current and discharged. As shown in FIG. 2, a tip portion having a constant diameter It consists of (21) and a vane (22) formed integrally at the tip and to form a vortex. The vane 22 formed at the rear of the front end 21 increases the discharge speed of the exhaust gas and discharges it as a vortex according to the law of Bernoulli's theorem, thereby increasing the speed of the exhaust gas and causing a constant rotational force. By discharging the exhaust gas as a result, the exhaust gas is discharged more smoothly than the exhaust gas by non-rotation, and fuel efficiency can be increased. In addition, the flow piece 23 may be further provided at the upper end of the tip portion 21 so that the vortex tube 20 can be flexibly applied to the inner diameter of the housing tube 10. The moving piece 23 is formed by being cut at the tip end portion so as to be bent, so that the moving piece 23 can be cut in various shapes so as to be bent outward. In FIGS. 3 and 4, it is shown that the incision shape is formed in a'b' shape so that it can be bent outward. As the flow piece 23 is formed, it can be applied to various diameters up to a certain inner diameter.

5 shows a process of forming the vanes 22 of the vortex tube 20 according to the present invention. In addition, the formation of the moving piece 23 may be performed together with the cutting of the vane 22. As shown in Fig. 5(a), first, a straight cutout 221 is formed up to the tip of a predetermined length up and down. When the straight cutout 221 is formed, the cross-section has a rectangular shape. Next, as shown in Fig. 5(b), a diagonal cutout 222 is formed in a diagonal direction. It is divided into a fixed piece 225 and a bent piece 224 due to the diagonal cutout 222 in the diagonal direction, and the vane 22 is formed by bending the bent piece 224 inward at a certain angle. The diagonal cutout 222 forms a non-cutting part 223 that is not completely cut and partially cut in the form of a cut, so that the bent piece 224 can be connected to the fixing piece 225 even after bending. At the tip portion 21, a flow piece 23 is formed in a'b' shape, and can be bent outward. The flow piece 23 may simply form an incision in an 11-shape. The formation of the flow piece 23 can be manufactured in various forms because it is sufficient if only one side can be fixed with the tip portion 21.

The operation of the exhaust emission reduction device 1 for an internal combustion engine of a vehicle according to the present invention having the above configuration will be described in detail.

First, as shown in FIG. 7, the vortex generator 1 according to the present invention is additionally mounted at the end of the tail pipe 2-1 of the vehicle 2 so that the discharge flow of the exhaust gas forms a vortex. Maximize exhaust efficiency and improve fuel economy accordingly.

Here, in a state in which the end of the tail pipe 2-1 is partially inserted into or outside the upper fastening portion of the housing tube 10, the housing tube 10 is tailed using a fastening means such as a bolt. It can be firmly mounted on the pipe 2-1.

On the other hand, by stepping on the accelerator pedal in a state where the engine is started and the internal combustion engine of the vehicle equipped with the vortex generator 1 of the present invention starts to drive, the vehicle can be driven, that is, the four strokes of the internal combustion engine. (Suction, compression, explosion, exhaust) is in progress, and exhaust gas is discharged through the tail pipe 2-1 according to the exhaust stroke among these four strokes, and the exhaust gas thus discharged is shown in FIG. As described above, a vortex is finally formed in the process of external discharge through the pipes of the housing pipe 10 and the vortex pipe 20 through the tail pipe 2-1. If necessary, it may be formed so that the diameter of the vortex tube 20 gradually decreases. This is suitable when it is necessary to increase the discharge speed of the exhaust gas while passing through the vortex pipe 20, and if the diameter is excessively reduced, the pressure inside the exhaust pipe may increase even if the speed increases, so that the diameter decreases. It is reasonable to be done properly. When the discharge rate is increased, the discharge rate of the exhaust gas increases, and accordingly, the exhaust gas is discharged smoothly, thereby increasing the efficiency of the exhaust gas. That is, since the exhaust gas can be discharged more easily and more at the same time, the possibility of reverse flow of the exhaust gas or the like can be prevented in advance with an increase in the amount of exhaust gas, so that fuel economy improvement can be achieved.

In summary, according to the exhaust emission reduction device 1 for an internal combustion engine of a vehicle of the present invention, as shown in FIG. 7, the tailpipe 2 of the muffler of the vehicle 2 is terminated by the exhaust stroke among the four strokes of the internal combustion engine. Through 1), the exhaust gas that is finally discharged from the outside generates a vortex and is discharged, so that the exhaust efficiency is achieved quickly and the administrative capacity of the internal combustion engine is improved. The effect of improving fuel economy can be achieved.

In addition, by inducing smooth exhaust of exhaust gas by using a vortex-type flow that naturally occurs while driving a vehicle without a separate driving device, the engine's exhaust performance and energy efficiency are improved, and various parts installed in the intake and exhaust systems It helps to improve the durability of parts and reduces exhaust noise. In addition, various problems caused by exhaust gas cannot be discharged to the exhaust pipe in time and delayed discharge may be solved.

Accordingly, the exhaust gas reduction device for an internal combustion engine of an automobile according to the present invention has an effect of reducing exhaust and increasing fuel economy, and has a technology capable of reducing carbon and increasing energy efficiency.

The above description is only illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention belongs can make various modifications, changes, and substitutions within the scope not departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but are for description, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. . The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1: vortex generator 2: automobile
2-1: tail pipe
10: housing tube 11: housing tube body
12: bolt hole
20: vortex pipe 21: tip
22: vane 221: straight incision
222: diagonal incision 223: non-incision
224: bent piece 225: fixed piece

Claims (3)

It has a housing pipe connected to the tail pipe of the muffler end of the vehicle and continuing the discharge flow of exhaust gas, and a vane mounted inside the housing pipe and allowing the exhaust gas passing through the housing pipe to be discharged in a spiral manner. In the exhaust emission reduction device for an automobile internal combustion engine comprising a vortex tube,
The vortex tube,
A front end portion of a predetermined length that is forcibly fitted into a predetermined position inside the housing tube; And
A vane cut in a rectangular shape up to the tip portion and bent inward along a diagonal line;
An exhaust emission reduction device for an automobile internal combustion engine, characterized in that consisting of.
The method of claim 1,
The vane is an exhaust emission reduction device for an internal combustion engine of an automobile, characterized in that the vane is formed to be bent inward by cutting only a part of a diagonal line so as not to be disconnected.
The method of claim 1,
At the upper end of the distal end, a flow piece that is cut to be bent outward so as to fluidly correspond to the diameter of the vortex tube is further included.

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