KR102127140B1 - The exaust fumes reduction device for internal combustion engine - Google Patents

Abstract

The present invention relates to an exhaust gas reduction device for a vehicle internal combustion engine, which reduces generation of exhaust gas and promotes improvement of the output and fuel efficiency by smoothing a discharge flow of the exhaust gas in a state of being added and mounted on the end of an exhaust line of a vehicle. The exhaust gas reduction device for a vehicle internal combustion engine, which smooths a discharge flow of exhaust gas by being mounted at the end of an exhaust port of a vehicle, comprises a housing tube and a vortex tube mounted inside the housing tube to allow exhaust gas to be spirally rotated and discharged. The housing tube includes a front body mounted on the end of an exhaust port of a vehicle and having an inlet of a predetermined diameter into which the exhaust gas is introduced, and a rear body having the diameter gradually decreasing to increase a rotational force of the exhaust gas passing through the inlet and the vortex tube. Also, the vortex tube has a front end to be welded and fixed at a predetermined position inside the front body of the housing tube, has a shape that the diameter thereof is decreasing toward a rear end from the front end, is formed with a plurality of vanes cut by a predetermined length from the rear end to the front end, and is inwardly and outwardly bent at a predetermined angle toward the rear end from the front end with respect to a cut portion of the vanes, such that the exhaust gas colliding with the vanes is rotated to increase a speed.

Description

Smoke reduction device for internal combustion engines {THE EXAUST FUMES REDUCTION DEVICE FOR INTERNAL COMBUSTION ENGINE}

The present invention relates to a smoke reduction device for an internal combustion engine, and more specifically, to generate exhaust gas by smoothly discharging exhaust gas while being additionally attached to the end of the exhaust line of the internal combustion engine used in ships, vehicles, and various industrial machinery. The present invention relates to a smoke reduction device for an internal combustion engine that reduces power consumption and improves output and improves fuel efficiency.

In modern society, interest in the environment is quite high. As environmental problems caused by a series of fine dusts have recently emerged, interest in air quality has increased. In the case of industrial machines using automobiles, ships, or internal combustion engines, the exhaust gas contains a lot of soot when the internal combustion engine is aged, and is currently being targeted for generating pollution and fine dust.

Therefore, in the development of various internal combustion engines, such as vehicles and ships, research into exhaust noise and emission reduction is actively conducted, and the trend to further strengthen regulations to reduce greenhouse gas emissions and suppress the occurrence of harmful elements of pollution.

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

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

Also, in the process of discharging from the cylinder of the internal combustion engine to the tail pipe of the silencer, there is a period of so-called valve overlap in which the intake valve and the exhaust valve are instantaneously opened simultaneously during the four strokes of the internal combustion engine in the exhaust manifold. In this process, a vacuum state is formed in the exhaust manifold instantaneously as the gas discharged in the process re-introduces into the cylinder, thereby forming a primary exhaust pressure that hinders exhaust gas emission.

In addition, in the three-dimensional catalyst device, which is an air purifier, the flow rate of the exhaust gas is significantly reduced while passing through the fine air holes of the honeycomb type exhaust gas purifier, thereby forming a secondary exhaust pressure. When absorbing sound around the partition, a third exhaust pressure is formed.

Due to the resistance of the exhaust process, the combustion gas of the internal combustion engine cannot be discharged smoothly, so there is a closed end in which the output is reduced by about 20 to 25%. Therefore, it is possible to improve the output of the internal combustion engine and improve fuel efficiency by simply discharging the exhaust gas smoothly.

In order to solve some of these problems somewhat, in Korean Patent Publication No. 10-2016-0118096, the vortex for an internal combustion engine is located inside the first housing and the first housing communicating with the internal combustion engine, and centrally located in the first center. The first central passage portion where the hole is formed, and the first housing and the first central passage portion are located between the first housing and the first central passage portion and are formed of one or more first fixed vortex fans. A first vortex portion, a second housing coupled to the inside of the first housing formed in the first vortex portion through a forced fit through heat, and positioned inside the second housing and having a second central hole in the center It is formed between the second central passage part and the second housing part which is located between the second housing and the second central passage part and is connected to the second housing and the second central passage part and is formed by one or more second fixed vortex fans. However, the rear surface of the second vortex unit is coupled to the rear surface of the first vortex unit, and the first fixed vortex fan formed in the first vortex unit and the second fixed vortex fan formed in the second vortex unit are arranged to be staggered to each other. Since the vortex fan for the internal combustion engine has a large vortex fan structure and a large area occupied by the vortex fan and the central passage, there is a problem that smooth vortex formation of the exhaust gas is difficult due to a pressure drop when the exhaust gas is discharged.

Patent No. 10-1952142 is a vortex generator equipped with a case to enable the generation of multiple whirlwinds. An air vortex generator is installed in the internal combustion engines of automobiles, aircraft, ships, and various industrial machines to make the air that is intake and exhaust into a vortex. A vortex generator capable of generating a multi-torn wind capable of inducing and exhausting the flow of air at a high speed, the body and the body formed in the flow direction of the air inside the intake pipe so that the air sucked into the internal combustion engine forms a vortex. As a vortex generator formed of a plurality of wing portions coupled to the outer circumferential surface of the part, the body portion is a hollow cylindrical or hollow polygonal column, and a coupling groove of a plurality of long holes is formed in the longitudinal direction of the body portion on the outer circumferential surface of the body portion, The coupling groove is formed to be inclined with respect to the longitudinal direction of the body portion, and the wing portion is formed by one end coupled to the coupling groove of the long hole and the other end not coupled to the coupling groove of the long hole, and the body portion is clockwise or counterclockwise. It is formed to wrap. Since the vortex generator also has a large area occupied by the wing portion, there is a problem that the pressure acting on the exhaust gas discharged may be increased.

In addition, a vortex pipe is used for smooth discharge of the exhaust gas formed in the prior art, while noise due to pressure drop of the exhaust gas according to the shape of the vortex pipe occurs, or secondary back pressure caused by the vortex pipe occurs. There was a problem such as obstructing the smooth flow of exhaust gas.

In addition, because the exhaust gas is not discharged smoothly, there is a problem in that the generation of soot increases and the efficiency of the internal combustion engine decreases.

Registered Patent Publication No. 10-1882834 (Registration on August 23, 2018) Registered Patent Publication No. 10-1942753 (registered on January 22, 2019) Registered Patent Publication No. 10-1952142 (registered on February 20, 2019) Registered Patent Publication No. 10-1950664 (registered on February 14, 2019)

The present invention is to solve the above problems, by smoothing the exhaust gas discharged through the exhaust gas outlet of the internal combustion engine, soot reduction device for internal combustion engines that can reduce the smoke generated during the exhaust of the exhaust gas It aims to provide.

In addition, the present invention increases the output speed of the internal combustion engine by preventing the engine from re-entering the exhaust gas generated by the valve's orb by increasing the exhaust gas discharge rate by allowing the exhaust gas discharged to the outlet to be discharged while rotating in a spiral. It is an object of the present invention to provide a smoke reduction device for an internal combustion engine that can increase fuel efficiency.

In addition, the present invention is to provide a smoke reduction device for an internal combustion engine that can reduce the generation of soot due to delayed discharge of exhaust gas by smoothly discharging exhaust gas discharged through the exhaust pipe.

Another object of the present invention is to provide a smoke reduction device for an internal combustion engine that can prevent noise generated due to a pressure drop due to a reduction in the diameter of the vortex pipe while the exhaust gas passes through the vane after passing through the venturi pipe. have.

In order to achieve the above object, the present invention is mounted on the end of the exhaust port of the internal combustion engine, a smoke reduction device for an internal combustion engine for smoothing the exhaust gas discharge flow, wherein the smoke reduction device includes a housing tube and a housing tube inside. Equipped with a vortex tube for allowing the exhaust gas to be rotated and discharged in a spiral, the housing tube is mounted at the end of the exhaust port of the vehicle and has a front body having an inlet of a certain diameter through which the exhaust gas flows, It consists of a rear body whose diameter is gradually reduced and an outlet is formed at the rear end so as to maintain the rotational force of the exhaust gas passing through the inlet and the vortex pipe, and the vortex pipe is welded to a predetermined position inside the front body of the housing pipe. Fixed and extended a certain length to the rear to form an exhaust inlet, a venturi formed to be axially formed at the rear of the inlet, and to be expanded again from the rear of the venturi, the outer circumferential surface is in contact with the inner circumferential surface of the front body and the rear end Forming a discharge outlet portion of a diameter that narrows as it goes toward, the discharge portion forms a plurality of vanes cut in a certain length from the rear end to the front, and based on the incision of the vane from the tip of the vane to the rear end of the vane. It is bent at a certain angle to the side, it provides a smoke reduction device for an internal combustion engine, characterized in that the speed increases while the exhaust gas hitting the vane rotates.

In the present invention, the length of the housing tube is characterized by being 80 mm to 200 mm.

In the present invention, the length of the vane is characterized by corresponding to 20 mm to 50 mm.

In the present invention, the number of vanes is characterized by being formed from 6 to 10.

In the present invention, the angle (θ ₁ ) formed between the front end and the rear end of the vane is characterized by being formed at 10° to 20°.

In the present invention, the tangential angle (θ ₂ ) of the end of the rear body based on the front body is characterized in that it is formed at 20 to 25°.

In the present invention, the torsion angle (θ) of the vane is characterized by being formed to 20 ~ 40 °.

In the present invention, in a predetermined position of the front body of the housing pipe around the front end of the vane, a plurality of external air inlet holes are formed radially to prevent noise due to pressure drop as it passes through the vortex pipe.

In the present invention, the inner diameter of the venturi portion, the average diameter of the rear end of the vane, and the inner diameter of the outlet are formed to be the same as each other.

The exhaust gas reduction device for an internal combustion engine of the present invention has an effect of increasing exhaust speed by increasing exhaust speed by causing exhaust gas discharged to the outside through the exhaust gas outlet of the internal combustion engine to be rapidly discharged. .

In addition, the exhaust gas reduction device for an internal combustion engine of the present invention has an advantage of increasing exhaust gas emission efficiency and reducing exhaust emission due to exhaust gas emission delay because exhaust gas is rapidly generated.

In addition, the smoke reduction device for an internal combustion engine of the present invention has an advantage that no noise is generated due to a pressure drop while the exhaust gas passes through the vortex pipe because an outside air inlet hole is formed in the housing pipe.

1 is a perspective view of a smoke reduction device for a vehicle internal combustion engine according to the present invention.
Figure 2 is a perspective view of a vortex pipe of a vehicle smoke reduction device for an internal combustion engine according to the present invention.
Figure 3 is a plan view of the vortex pipe of the exhaust gas reduction device for a vehicle internal combustion engine according to the present invention.
Figure 4 is a cut-away view of the exhaust reduction device for a vehicle internal combustion engine according to the present invention.
Figure 5 is a perspective view showing the torsional angle of the vane of the vehicle internal combustion engine exhaust reduction device according to the present invention.
Figure 6 is a flow chart showing the working relationship of the exhaust gas discharge flow through the housing pipe and the vortex pipe of the vehicle internal combustion engine exhaust reduction device according to the present invention.
7 is a state diagram showing that the vehicle is equipped with a vehicle exhaust reduction device for an internal combustion engine according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily implement the present invention. First, it should be noted that in adding reference numerals to components of the drawings, the same components have the same reference numerals as possible even though they are displayed on different drawings. In addition, in describing the present invention, when it is determined that detailed descriptions of related well-known structures or functions may obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

1 is a perspective view of a smoke reduction device for a vehicle internal combustion engine according to the present invention, FIG. 2 is a perspective view of a vortex tube of a smoke reduction device for a vehicle internal combustion engine according to the present invention, and FIG. 3 is a smoke reduction device for a vehicle internal combustion engine according to the present invention Is a plan view of the vortex pipe, FIG. 4 is a cutaway view of a smoke reduction device for a vehicle internal combustion engine according to the present invention, and FIG. 5 is a perspective view showing a twist angle of a vane of a smoke reduction device for a vehicle internal combustion engine according to the present invention, FIG. 6 is a flow chart showing the working relationship of the exhaust gas discharge flow through the housing pipe and the vortex pipe of the vehicle internal combustion engine exhaust reduction device according to the present invention, Figure 7 is a vehicle internal combustion engine exhaust reduction device mounted on the vehicle It is a state diagram showing things.

As shown in FIG. 1, the exhaust reduction device 1 for a vehicle internal combustion engine according to the present invention is discharged by exhaust gas flowing in a state attached to a muffler end tail pipe 2-1 of the vehicle 2 It is configured to include a housing tube 10 and a vortex tube 20 mounted inside the housing tube 10 and allowing exhaust gas passing through the housing tube 10 to cause vortices and be discharged.

The housing pipe 10 is a means for allowing the exhaust flow of the exhaust gas to efficiently flow from the tail pipe 2-1 end of the automobile 2 shown as an example in FIG. 7, as shown in FIG. 1. Likewise, as an exhaust pipe through which the movement flow of exhaust gas discharged to the outside through the tail pipe 2-1 by the exhaust stroke of the four strokes of the internal combustion engine is completed, an inlet 13 connected to the tail pipe 2-1 ) Is formed at the front end and has a constant diameter up to a certain distance, and the rear body 15 is gradually reduced in diameter as it goes from the rear end of the front body 11 to the end forming the outlet 14. Have On the inlet 13 side, a bolt hole 12 is further formed to be mounted on the tail pipe 2-1. When mounting the housing tube 10, the housing tube 10 is formed to have a constant diameter smaller than the diameter of the tail pipe when inserted into the tail pipe, the housing tube 10 is inserted outside the tail pipe In the case, it is preferable that the diameter of the fastening portion is formed equal to or larger than the outer diameter of the tail pipe so that it can be inserted outside.

Specifically, the housing tube 10 is composed of a front body 11 and a rear body 15, an inlet 13 is formed at the front end of the front body 11, the exhaust gas is introduced, and the rear body 15 At the rear end of the outlet 14 is formed, so that the exhaust gas forms a spiral vortex. And, it is composed of a plurality of fastening holes 12 formed in the fastening portion on the inlet side of the front body (11). In addition, noise may be generated in the peripheral front body 11 of the vortex pipe 20 due to the pressure drop generated while passing through the vortex pipe 20, and the outside air inlet hole 16 is further prevented or reduced. Can be formed. That is, the outside air inlet hole 16 is formed radially around the front end of the vane 24 of the vortex pipe 20.

The vortex pipe 20 is for controlling the flow rate of the exhaust gas through which the exhaust gas discharged through the housing tube 10 spirally rotates, and as illustrated in FIG. 2, the exhaust gas discharge flow It is configured to have the shape of a venturi tube to increase the speed while forming a spiral vortex. Specifically, the vortex pipe 20 is welded to a predetermined position inside the front body 11 of the housing pipe 10 and extends a certain length toward the rear to form an exhaust inlet 21 and an inlet 21 The venturi portion 22 formed by being axially formed at the rear of the ventilator 22, and the outer circumferential surface is in contact with the inner circumferential surface of the anterior body 11 by being expanded again from the rear of the venturi portion 22, and the outlet portion of the diameter narrows toward the rear end ( 23). A plurality of vanes 24 are cut out from the rear end to the front side at a predetermined length in the outlet portion 23, and a certain angle is bent inward and outward toward the rear end from the front end of the vane 24 based on the incision of the vane 24. , It is configured such that the exhaust gas hitting the vane 24 is rotated in a spiral to increase and discharge speed. The vortex pipe 20 forms a vane 21 to form a helical vortex. Since the exhaust gas hits the vane 24 and is discharged, the exhaust gas is forced to be discharged while rotating in a spiral. In addition, the vortex pipe 20 forms a venturi portion 22 to increase the velocity of the exhaust gas discharged, primarily increasing the velocity of the exhaust gas passing through the vortex pipe, and passing through the venturi portion 22 After passing through the outlet portion 23 again, the speed is increased, and it is discharged by rotating in a spiral while hitting the vane 24. That is, when passing through the venturi portion 22 and the outlet portion 23, since the diameter is gradually reduced, it is discharged as a vortex while increasing the discharge rate of the exhaust gas according to Bernoulli's theorem, and accordingly the exhaust gas The increase in emissions, and also can increase the fuel efficiency by smooth emission of exhaust gas. That is, it is possible to smoothly discharge the exhaust gas, thereby preventing the exhaust gas from flowing back into the engine, thereby increasing fuel efficiency and reducing smoke generation due to exhaust gas delay.

To this end, as shown in Figures 2 and 3, the outlet portion 23 is provided with a vane 24 formed by twisting at a certain angle after being cut in a number. As shown in the figure, the vane 24 is formed by twisting at a certain angle so that the exhaust gas can be discharged while forming a vortex. As shown in FIG. 5, the vane 21 has a twist angle θ formed by the rear end of the vortex tube 20 with the tangent of the circle based on the circle of the tip of the vortex tube 20, 20° to 40°. It is twisted to have. In addition, as shown in Figure 4, the position of the housing tube 10 and the vortex tube 20 is formed under the following conditions. When the housing pipe 10 is formed to be too long, the discharge rate of the exhaust gas may be reduced due to the pressure drop generated by the housing pipe 10, so that the housing pipe 10 is formed to have a constant length. Accordingly, the length L of the housing tube 10 is 100 to 200 mm. Next, the vortex pipe 20 mounted inside the housing pipe 10 is formed so that the outer diameter is the same as the inner diameter of the housing pipe 10, and the installation position of the vortex pipe 20 is a certain distance from the inlet 13 ( ℓ ₄ ) is installed at the rear, and a certain distance (ℓ ₄ ) is preferably 1/10 of the total length (L) of the housing tube. That is, it is preferably formed short so as to be able to rotate while passing through the vortex pipe as soon as possible. The length ℓ ₁ of the vortex pipe 20 is preferably about 3/4 of the total length L of the housing pipe 10, and is formed to be 75 mm to 150 mm in length. This is to allow the exhaust gas to pass through the vortex pipe 20 and to increase its speed and to be rapidly discharged while being rotated and discharged. In addition, the length of the vane 24 is formed to be 30 to 40% of the total length (ℓ ₁ ) of the vortex pipe 20. At the rear end of the vortex pipe 20, the distance L ₅ between the outlets 14 of the housing pipe 10 is 25 mm to 50 mm, which is 1/4 of the total length L of the housing pipe 10. This is to allow the exhaust gas that has passed through the vane 24 to be discharged without being affected by the flow of outside air without contacting the housing tube 10. In addition, the number of vanes 24 is formed by 6 to 10, so that the area where the exhaust gas hits the vanes is not too narrow. Accordingly, it is possible to make it easy for the exhaust gas to obtain the rotational force to form the vortex. That is, so that the exhaust gas passing through the smoke reduction device 1 according to the present invention can quickly escape while forming a vortex in a spiral, primarily to increase the speed through the venturi portion 22, and expand again Later, while passing through the vane 24, the speed increases with the spiral rotation so that it can be ejected. By forming the venturi portion 22 in the present invention, the exhaust gas is increased while passing through the venturi, and the velocity is increased again while passing through the vane 24 to be discharged in a spiral.

The housing pipe 10 allows the rear body 15 to be gradually reduced in a curved shape, so that the exhaust gas deviating from the mainstream exhaust gas flow can be easily discharged along the inner wall of the rear body 15. do. The rear body 15 of the housing tube is formed to be approximately 1/4 of the total length L of the housing tube. 6 is a representation of the pressure drop of the exhaust gas. As the diameter gradually decreases, the pressure decreases in the form of P> P ₁ > P ₂ , and accordingly the speed is in the order of V ₂ > V ₁ > V By forming a spiral vortex, the exhaust rate of the exhaust gas is increased to enable smooth exhaust of the exhaust gas through the muffler of the vehicle. That is, the increased while passing through the venturi section 22 speed (V _1), the speed (V ₂₎ is increased again while passing through the vane 24. As the exhaust gases hit the vanes rotating in a spiral. Therefore, it is possible to increase the velocity of the exhaust flow of the exhaust gas passing through the vortex pipe 20 by the pressure drop according to the second order. In addition, the inner diameter of the venturi portion 22, the average inner diameter of the vane end portion, and the inner diameter of the outlet 14 may be formed to be the same as each other in order to prevent the pressure drop from being excessively large while passing through the vortex pipe 20. .

In addition, as shown in FIGS. 1 and 4, the external air inlet hole 16 for preventing noise due to pressure drop generated while passing through the vortex pipe 20 in the peripheral front body 11 of the vortex pipe 20 ) May be added, and the exhaust gas passes through the vortex pipe 20 and the back pressure falls, so that outside air is introduced through the outside air inlet hole 16, and noise may be reduced or prevented due to the inflow of outside air. The outside air inlet hole 16 is preferably made of a diameter of 4 to 5 mm, and the position where the outside air inlet hole 16 is formed is preferably installed in the front body 11 between the front end and the rear end of the vane 24. . In addition, the number of the outside air inlet hole 16 is preferably formed of about 8 to 10 pieces. The outside air may be introduced into the housing tube 10 through the outside air inlet hole 16. That is, the pressure between the housing pipe 10 and the vortex pipe 20 is reduced by the exhaust gas discharged at a high speed, and also some of the exhaust gas hit the vane may be introduced, and the introduced exhaust gas Noise caused by the vortex may be generated, and the vortex may be canceled by the outside air flowing into the outside air inlet hole 16. Accordingly, noise can be prevented. In addition, the noise caused by the exhaust gas hitting the vane of the vortex pipe 20 may also have an offset effect due to inflow of outside air.

The operation of the smoke reduction device 1 for an internal combustion engine according to the present invention having the above configuration will be described in detail as follows.

First, as shown in FIG. 7, the exhaust flow of the exhaust gas forms a spiral vortex by additionally mounting the exhaust pipe 1 for the internal combustion engine according to the present invention at the tail pipe 2-1 end of the vehicle 2 By doing so, it is possible to maximize exhaust efficiency and thereby improve fuel efficiency.

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

On the other hand, when the vehicle is described as an example, a state in which the driver can step in the accelerator pedal in a state in which the internal combustion engine equipped with the smoke reduction device 1 of the present invention starts to drive by starting the engine is started. That is, four strokes (suction, compression, explosion, and exhaust) of the internal combustion engine are 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 As shown in Figure 6, through the tail pipe (2-1) described above through the conduit of the housing tube 10 and the vortex tube 20 is to finally cause the vortex in the process of external discharge. In addition, since the diameters of the housing pipe 10 and the vortex pipe 20 through which the exhaust gas passes are reduced in two stages and are formed according to the principle of the Venturi pipe that is expanded and reduced again, it passes through the vortex pipe 20. While the discharge rate of the exhaust gas is increased, and finally, while passing through the outlet 14, the speed is further increased to increase the discharge efficiency of the exhaust gas discharged by being discharged in a spiral vortex. That is, since the exhaust gas can be more easily and more discharged at the same time, the possibility of backflow of the exhaust gas or the like can be blocked in advance due to an increase in the exhaust amount, thereby improving fuel efficiency.

In summary, according to the exhaust reduction device 1 for an internal combustion engine of the present invention, as shown in FIG. 7, the muffler end tailpipe 2-1 of the vehicle 2 by the exhaust stroke of the four strokes of the internal combustion engine ) To allow the exhaust gas that is finally discharged to the outside to be discharged while causing vortex, so that the efficiency of the internal combustion engine is improved by preventing the exhaust gas from flowing quickly and thereby preventing the reverse flow or exhaust delay of the vehicle. In addition to the improvement, fuel efficiency can be improved.

In addition, by inducing smooth exhaust of exhaust gas by using a vortex-like flow that occurs naturally while driving the vehicle without a separate driving device, the engine's exhaust performance and energy efficiency are improved, and various parts installed in the intake system and exhaust system It helps their functions to improve the durability of the parts, and can reduce the exhaust noise. In addition, various problems caused by delayed discharge may not be solved because exhaust gas is not discharged in time.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain, 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 thoughts within the equivalent range should be interpreted as being included in the scope of the present invention.

1: Smoke reduction device 2: Vehicle
2-1: Tail Pipe
10: housing tube 11: front body
12: fastening hole 13: inlet
14: outlet 15: rear body
16: Outside air inflow hole
20: vortex tube 21: inlet portion
22: venturi portion 23: outlet portion
24: vane

Claims (9)

In the exhaust port of the internal combustion engine is installed in the exhaust gas exhaust reducing device for a smooth flow of exhaust gas,
The smoke reduction device is composed of a housing tube and a vortex tube mounted inside the housing tube to allow exhaust gas to rotate and discharge in a spiral,
The housing tube is mounted at the end of the exhaust port of the vehicle, and the diameter is gradually reduced to maintain the rotational force of the exhaust body passing through the inlet and the vortex tube, and the front body having an inlet of a certain diameter through which the exhaust gas flows into the inside. It is composed of a rear body that has an outlet at the rear end,
The vortex pipe is welded to a predetermined position inside the front body of the housing pipe and extends a certain length to the rear to form an exhaust inlet, and a venturi portion formed axially behind the inlet, and a rear of the venturi portion Re-expanded in the outer circumferential surface of the front body is in contact with the outer circumferential surface to form a discharge port portion of a diameter that narrows toward the rear end, the outlet portion forms a plurality of vanes cut a predetermined length from the rear end to the front side, the incision of the vane A certain angle is bent from the front end of the vane to the rear end of the vane on the basis of the portion, and the speed increases as the exhaust gas hitting the vane rotates.
The internal diameter of the venturi portion, the average diameter of the rear end of the vane and the internal diameter of the outlet, soot reduction device for an internal combustion engine, characterized in that formed in the same. According to claim 1,
The length of the housing pipe is 80㎜ ~ 200㎜ smoke reduction device for an internal combustion engine, characterized in that.
According to claim 2,
The length of the vane, soot reduction device for an internal combustion engine of a vehicle, characterized in that corresponding to 20㎜ ~ 50㎜.
According to claim 3,
The number of vanes, 6 to 10 soot reduction device for an internal combustion engine of a vehicle, characterized in that formed.
According to claim 1,
The angle (θ ₁ ) formed by the front end and the rear end of the vortex pipe is formed by 10 ° ~ 20 ° smoke reduction device for an internal combustion engine of a vehicle, characterized in that formed.
According to claim 1,
Smoke reduction device for an internal combustion engine in a vehicle, characterized in that the tangential angle (θ ₂ ) of the end of the rear body relative to the front body is formed at 20 to 25°.
According to claim 1,
The vane angle (θ) of the vane is a smoke reduction device for an internal combustion engine of a vehicle, characterized in that formed in 20 ~ 40 °.
According to claim 1,
Smoke reduction device for a vehicle's internal combustion engine, characterized in that a plurality of external air intake holes are formed radially at a predetermined position in the front body of the housing pipe around the front end of the vane to prevent noise due to pressure drop as it passes through the vortex pipe. .
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