KR102180334B1 - Intake/exhaust device for pressure regulation of internal combustion engine - Google Patents

Abstract

The present invention relates to an intake/exhaust device for controlling the pressure of an internal combustion engine, which installs an air pressure control device in intake and exhaust parts of an internal combustion engine such as a vehicle to change intake and exhaust air into rotating air so as to improve the flow of air, such that combustion efficiency is improved through output improvement in accordance with intake and exhaust efficiency to improve fuel efficiency. According to the present invention, a space (23) is formed in an outer diameter pipe (20) formed with an arc-shaped guide surface (22) at an inlet side, an inner diameter pipe (40) having the space (23) is formed, and a Bernoulli blade (30) having a Bernoulli groove (33) on a blade tip plane (31) is formed after connecting the outer diameter pipe (20) and the inner diameter pipe (40) and forming a blade inclined surface (32) and the blade tip plane (31) at the inlet side. The inner diameter pipe (40) enables an air guide protrusion (50) further protrude from an outlet side, and an inner diameter air guide groove (44) is formed in the inner diameters of the inner diameter pipe (40) and the air guide protrusion (50). Also, an outer diameter air guide groove (41) is formed in outer diameters of the inner diameter pipe (40) and the air guide protrusion (50) to assist the flow of air so as to adjust the pressure.

Description

Intake/exhaust device for pressure regulation of internal combustion engine

The present invention relates to an intake/exhaust device for controlling the pressure of an internal combustion engine, and more particularly, by installing an air pressure regulating device in the intake and exhaust sections of an internal combustion engine such as an automobile, the intake and exhaust air is made into rotating air. The present invention relates to an intake/exhaust device for controlling pressure of an internal combustion engine, which improves the flow of air and improves combustion efficiency by improving output according to intake/exhaust efficiency.

In general, diesel engines are basically equipped with a turbo charger and an intercooler in order to provide ease of high-speed driving by supercharging exhaust during high-speed driving, and to cope with exhaust gas regulations and CO2 regulations.

The turbocharger is like a type of blower, and uses the flow energy of exhaust gas exiting the exhaust manifold of the engine.

Therefore, due to the flow energy of the exhaust gas, the turbine of the turbocharger rotates, and at the same time, the compressor installed coaxially on the opposite side rotates, and the exhaust is sucked and pressurized by the compressor and is supercharged to the combustion chamber of the engine cylinder. Is supplied.

In this case, in the case of a diesel engine equipped with only the turbocharger, the pressure of the intake air may be increased, but the temperature of the air increases during the process of compressing the air, so that the actual filling efficiency is improved along with the increase of the combustion temperature and the exhaust temperature. The phenomenon of deterioration of the is a problem.

Accordingly, by installing an intercooler in the exhaust line, the supercharged exhaust is cooled by the intercooler, and heat generation of the exhaust due to the supercharging is blocked, and the cooled exhaust is supplied to the combustion chamber, thereby improving the filling efficiency of the combustion chamber.

As described above, the exhaust system of a diesel engine using a turbocharger and an intercooler increases the amount of exhaust air, thereby reducing exhaust gas and improving fuel efficiency, reducing engine noise, and improving fuel efficiency.

Despite these advantages, a diesel engine using a turbocharger and an intercooler has the following problems.

In order to improve combustion efficiency and pumping loss, a large amount of air is inhaled and some of it is used for pure combustion reaction. In this case, nitrogen containing about 80% of the atmosphere is indispensably inhaled. In the high-temperature/high-pressure combustion process, it reacts with oxygen to generate nitrogen oxides (Nox), which are the most problematic in diesel engines.

In order to improve the combustion conditions, a high-temperature and high-pressure combustion chamber atmosphere is required, but it is relatively easy to generate nitrogen oxides under this condition, so there is a limitation in improving fuel efficiency through combustion improvement and reducing exhaust gas components such as SMOKE.

In addition, in the case of a diesel engine with a turbocharger and an intercooler, it is possible to improve the performance through the turbocharger system, but due to the nature of the turbocharger, it is impossible to improve the exhaust characteristics for the entire use area, inevitably, in certain sections such as low speed and low load. The phenomenon of performance degradation becomes inevitable.

In order to improve such characteristics, in recent years, a waste gate valve is installed on a turbocharger to partially improve exhaust performance, but fundamental improvement is in a difficult state.

In addition, a device that induces the flow of air at a high speed by generating air vortex in the intake and exhaust pipe of the vehicle, such as Patent Registration No. 17564042, increases the intake and discharge power of air to extend the lifespan.

However, the conventional techniques have a disadvantage that the flow of air intake and exhaust is not fast because the structure is complicated or the air flow is not generated smoothly in the left direction, and the flow separation phenomenon in which the blade and the wind are separated occurs. In addition, this flow separation phenomenon has a disadvantage in that the air flow is irregular, generates noise, causes a loss in suction power, and thus vibration is formed.

In addition, in order to improve the flow of air in the inner diameter direction of the outer diameter pipe, it is formed to be rounded on the entire surface, but the flow separation phenomenon occurs and noise is generated by the air flow, and the end of the outer diameter pipe is cylindrical and the entire surface is smooth. There was a problem in that the air was not supplied immediately and the supplied air flowed back, preventing the flow of air and preventing the pressure from being properly regulated.

[Document 1]. Patent Registration No. 17564042 (registered on June 28, 2017) [Document 2]. Utility model registration number 0461001 (2012. 06. 11. Registration) [Document 3]. Patent registration number 1647885 (registered on Aug. 05, 2016) [Document 4]. Patent Publication No. 2016-0004713 (published on January 13, 2016) [Document 5] Patent Registration No. 2080675 (registered on February 18, 2020)

Therefore, the problem of the present invention, which was devised to solve such a conventional shortcoming, is the outer diameter air formed on the inlet and the air guide protrusion that protrudes more than the outer diameter pipe and the inlet portion installed on the intake/exhaust side of the vehicle to control the air pressure. The purpose of this is to improve the combustion efficiency by improving the combustion efficiency by allowing the intake and exhaust air to be supplied faster by the guide groove, thereby improving the fuel economy, reducing the smoke, extending the life of the engine and reducing the noise.

Another problem of the present invention is to reduce the flow separation phenomenon by forming flow separation protrusions at regular intervals along the inner diameter of the portion where the Bernoulli wing and the outer diameter tube meet, thereby smoothing the flow of air to improve combustion efficiency, thereby improving fuel economy, and It aims to reduce engine life and reduce noise.

Another object of the present invention is to adjust the pressure by improving the flow velocity of the air intake and exhaust by forming an air flow rate improving groove on one side of the outer diameter air guide groove of the outer diameter pipe.

Another object of the present invention is to prevent reverse flow of the exhausted air by forming an air backflow prevention groove in the outer diameter of the outer diameter pipe end.

The present invention is made of an inner diameter pipe having a space and a space in an outer diameter pipe having an arc-shaped guide surface formed at the entrance side, and the wing tip is connected between the outer diameter pipe and the inner diameter pipe, and a wing slope and a wing tip plane are formed at the entrance side. It consists of a Bernoulli wing with a Bernoulli groove on the plane;

The inner diameter pipe further protrudes the air guiding protrusion from the outlet side, an inner diameter air guiding groove is formed in the inner diameter of the inner diameter pipe and the air guiding protrusion, and an outer diameter air guiding groove is formed in the outer diameter of the inner diameter pipe and the air guiding protrusion. It is characterized by controlling the pressure by helping the flow.

The present invention is installed at the intake/exhaust port of a vehicle to control the air pressure and the outer diameter air guide groove formed on the air guide protrusion protruding longer than the outer diameter pipe to supply the intake/exhaust air faster. By taking it long, the flow of air is smooth, improving combustion efficiency, improving fuel economy, reducing smoke, prolonging the life of the engine and reducing noise.

In the present invention, the flow separation protrusions are formed at regular intervals along the inner diameter of the part where the Bernoulli wing and the outer diameter tube meet, thereby cutting the movement of meat and reducing the flow separation phenomenon so that the flow of air is smooth, thereby improving the combustion efficiency and improving fuel economy. It is to provide the effect of reducing engine life and reducing noise.

In the present invention, the outer diameter air guide groove of the outer diameter pipe further forms an air flow rate improving groove on one side to improve the flow rate of the air intake and exhaust to adjust the air pressure according to the power of the engine, thereby preventing the overload of the engine and reducing the smoke It is to provide an effect of improving fuel economy.

The present invention provides an effect of improving air pressure control by forming an air backflow prevention groove in the outer diameter of the outer diameter of the outer diameter pipe to prevent the phenomenon that the air exiting the outer diameter pipe from flowing back and flowing as it is.

1 is a perspective view showing a preferred embodiment of the present invention
2 is a plan view showing a completed state of the present invention
3 is an enlarged plan view of a main part of the present invention
Figure 4 is a bottom perspective view showing a completed state of the present invention
5 is a bottom view showing a completed state of the present invention
6 is an enlarged bottom view of a main part of the present invention
7 is a front cross-sectional view showing the installation state of the present invention
Figure 8 is an enlarged view of the main part of the outer diameter tube and the air-guided projection of the present invention
9 Enlarged front view of main parts of the Bernoulli groove of the present invention
10 is an initial state of comparison of soot emission according to a general operating load
11 is an initial state of comparison of soot emission according to the operating load of the present invention
12 is an initial state of comparison of nitrogen oxide emissions according to a general operating load
13 is an initial state of comparison of nitrogen oxide emissions according to the operating load of the present invention
14 is a graph showing the CO2 emission state in a general initial state
15 is a graph showing the CO2 emission state after mounting the present invention
16 is an initial state distribution diagram of a typical CO2 emission COTOUR MAP
17 is an initial state distribution diagram of COTOUR MAP for CO2 emission after installing the present invention

With respect to the embodiments of the present invention posted in the text, specific structural or functional descriptions are exemplified only for the purpose of describing the embodiments of the present invention, and the embodiments of the present invention may be implemented in various forms. It should not be construed as being limited to the embodiments described in.

In the present invention, various modifications may be made and various forms may be applied, and specific embodiments will be illustrated in the drawings and described in the text. However, this is not intended to limit the present invention to a specific form of disclosure, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention. In describing each drawing, similar reference numerals have been used for components.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

When a component is referred to as being "connected" or "installed" to another component, it is understood that it may be directly connected or installed to the other component, but other components may exist in the middle. Should be.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as "include" or "have" are intended to designate the presence of specified features, numbers, steps, actions, components, parts, or a combination thereof, but one or more other It is to be understood that the presence or addition of features, numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of being excluded.

Unless otherwise defined, all terms, including technical and scientific terms, used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

Hereinafter, preferred embodiments of the present invention will be described in more detail according to the accompanying drawings.

1 is a perspective view showing a preferred embodiment of the present invention, FIG. 2 is a plan view showing a completed state of the present invention, and FIG. 3 is an enlarged plan view of a main part of the present invention.

It is installed in the intake/exhaust pipes of one or both of the exhaust pipes that supply one part or inhaled air from the outside, and then pass through the engine room to the exhaust pipe and inhale the external air from internal combustion engines such as automobiles. It consists of an intake/exhaust device 10 for controlling pressure that controls the pressure of exhausted air.

It is preferable to install a plurality of pressure-regulating intake/exhaust devices 10 by selecting various positions between the engine and the exhaust part of the part where the internal combustion engine sucks air.

The intake/exhaust device 10 has an inner diameter pipe 40 installed to have a hollow 43 formed in a circular shape at the center, and the outer diameter pipe 20 having a space 43 as an outer diameter of the inner diameter pipe 40 The Bernoulli wings 30 are connected in two to six at regular intervals.

The Bernoulli wing 30 is connected from the inner diameter pipe 40 to the outer diameter pipe 20 so as to be arc-shaped in one direction, and is formed to be inclined in one direction to have a spiral shape and is connected to have a constant height to reduce flow separation. It regulates pressure and reduces noise by making the air flow smoothly.

The Bernoulli wing 30 has a wing tip plane 31 formed from the outside to the inside based on the spiral direction at the entrance side, and the wing slope 32 in the inclined direction of the Bernoulli wing 30 from the wing tip plane 31 ), and the wing tip plane 36 is formed in a horizontal shape at the end of the Bernoulli wing 30.

"형과 같이 형성되며 내경 또는 외경의 어느 한쪽이 더 크게 형성되거나 양쪽이 같은 형상과 크기로 형성되어 공기의 흐름을 향상시키는 것이다. The Bernoulli wing 30 is to form at least one Bernoulli groove 33 on the wing tip plane 31, and the Bennui groove 33 is "

"It is formed like a mold, and either the inner diameter or the outer diameter is formed larger or both are formed in the same shape and size to improve the flow of air.

An arc-shaped guide surface 22 is formed on the inlet side of the outer diameter pipe 20 so as to be rounded in the inner diameter direction to improve the flow of air, and a semicircular flow separation protrusion 21 in the inner diameter direction at regular intervals on the arc-shaped guide surface 22 ) Is formed.

In the inner diameter of the inner diameter pipe 40, a plurality of inner diameter air guide grooves 44 are formed at regular intervals over the entire length so that the flow of air is made long, and the outer diameter of the part where the Bei Nui wing 30 meets A semicircular outer diameter air guide groove 41 is formed in a long distance from the inlet to the outlet portion close to the room to guide the flow of air at the inner and outer diameters simultaneously.

Figure 4 is a bottom perspective view showing a completed state of the present invention, Figure 5 is a bottom view showing the completed state of the present invention, Figure 6 is an enlarged bottom view of the main part of the present invention.

An air backflow prevention groove 25 is formed at the tip of the outer diameter pipe 20 so that the diameter of the outer diameter decreases, so that the exhausted air flows without flowing backwards after being coupled to the pipe, etc. The wing tip plane 36 is formed at the tip of the Bernoulli wing 30 formed inward, and the wing tip inclined surface 35 is formed at a portion where the inclined portion meets so that air does not flow back and is discharged as it is.

The inner diameter pipe 40 is installed to reach the wing tip plane 36, and then protrudes further outward in the same size to form an air guide protrusion 50 in the direction in which air is discharged.

The air guiding protrusion 50 is formed with an inner diameter air guiding groove 40 in the inner diameter, and an outer diameter air guiding groove 41 further formed in the outer diameter;

The outer diameter air guide groove 41 is to be formed in the middle portion when the Bernoulli wing 30 is used as a reference point.

Figure 7 is a front cross-sectional view showing the installation state of the present invention, Figure 8 is an enlarged view of the main part of the outer diameter pipe and the air guide projection of the present invention.

It is to install an intake/exhaust device 10 for pressure control that is installed on the inner diameter of the pipe 60 so that the suction and discharge of air is performed normally, and the length (a) of the outer diameter pipe 20 and the air guide protrusion 50 The length (b) ratio of is to be 50 to 70: 5 to 25, preferably 60 to 15.

The inner diameter pipe 40 has a length corresponding to the length of the outer diameter pipe 20, and after being formed in a clockwise direction in the outer diameter air guide groove 41, the inner diameter pipe 40 and the air guide protrusion 50 meet The air flow rate improvement groove 42 is formed to reach.

Figure 9 shows an enlarged front view of the main parts of the Bernoulli groove of the present invention,

"형의 무늬를 갖도록 하나 내지 3개가 형성되는 것이 바람직하며, 서로 같은 크기 또는 크기와 깊이가 점점 더 길고 깊게 형성되어 "

형이 2개 형성되도록" 하는 것이다.Bernoulli's groove 33 formed on one side of the inclined surface 31 of the wing tip of the Bernoulli wing 30 is "

"It is preferable that one to three are formed to have a pattern of a type, and the same size or size and depth are formed longer and deeper to each other"

It is to have two molds formed .

"형 무늬로 형성되도록 깊게 파여지고, 하측은 베르누이 날개(30)와 맞닿으며 사라지도록 형성하는 것이다.The Bernoulli groove 33 has an upper side "

"It is deeply dug to be formed in a pattern, and the lower side is formed so as to be in contact with the Bernoulli wing 30 and disappear.

In the intake/exhaust device for pressure control of the internal combustion engine of the present invention having such a configuration, the air in the process of intake/exhaust through the intake/exhaust device 10 for controlling pressure in which external air is sucked and exhausted to the outside through the internal combustion engine. Is rotated in one direction and the air flow is improved so that the air pressure is adjusted and the exhaust efficiency is improved as a result.

That is, the flow of air is rotated in one direction through the Bernoulli blade 30 of the intake/exhaust device 10 for pressure control, so that the flow of air is improved, and the air is discharged to the outside after passing through the internal combustion engine. By controlling the air pressure of the piping and engine through the air flow formed from the discharge, the air flow can be accelerated, and the air pressure through this air flow is adjusted to improve output and reduce noise.

In particular, the Bernoulli wing 30 is installed in the internal combustion engine of the vehicle in a spiral at regular intervals in one direction in the space 23, so that the flow of air supplied to the space 23 is accelerated and the air flow is reduced in the process of supplying it. Because it is smooth, it improves combustion efficiency by naturally adjusting the pressure of the piping and engine to improve fuel efficiency, reduces soot, extends the life of the engine, reduces noise, reduces vibration, and helps complete combustion.

The Bernoulli wing 30 has an arc-shaped guide surface 22 formed from the starting point of the outer diameter tube 20 toward the inner diameter direction to smooth the flow of air, and is semicircular toward the inner diameter direction at regular intervals on the arc-shaped guide surface 22 The flow separation protrusion 21 is formed so that the air does not fall off, helps the air to move, and prevents loss.At the same time, it takes the air flow quickly and improves the compression effect to reduce the flow separation phenomenon. To avoid.

In addition, the Bernoulli foot 30 forms a wing inclined surface 32 on one side of the wing tip plane 31, and then the Bernoulli groove 33 in the opposite direction of the wing inclined surface 32 is the same size at the beginning at regular intervals. It is effective in reducing the flow separation phenomenon through the generation of eddy currents by forming it.

The Bernoulli groove 33 has a narrow portion connected to the inner diameter pipe 40 and a wide portion connected to the outer diameter pipe 20 to form a stable and balanced connection portion as a whole, and is formed at regular intervals. It is effective in reducing the flow separation phenomenon by helping the air flow.

In particular, the Bernoulli groove 33 has a long and deep length in the direction of the inner diameter pipe 40 through which a lot of air flows, and has a short and low length in the outer diameter pipe 20 so that the air is uniformly supplied as a whole and moves. It is effective in reducing flow separation through rapid movement of the cylinder.

The outer diameter pipe 20 has an air backflow prevention groove 25 having a smaller diameter in the discharge portion of the air so that the discharged air is discharged as it is without flowing back again, thereby preventing the effect of the backflow of air. will be.

And at the lower end of the Bernoulli wing 30, a wing tip slope 35 is formed in the direction in which air flows from the wing tip plane 36 to aid in the flow of air and to reduce the flow separation phenomenon through the movement of air. It functions effectively.

In addition, the inner diameter pipe 40 formed in the center of the space 23 has an inner diameter air guide groove 44 at regular intervals formed in the direction of the central hollow 43 so that the flow of air flowing into the hollow 43 is fast. It is to help the air escape rapidly while moving long and riding through the outer diameter air guide groove 41 of the outer diameter,

The inner diameter pipe 40 further protrudes the air guiding protrusion 50 at the same length as the front end of the outer diameter pipe 20, so that the inner diameter air guiding groove 44 is connected longer so that the flow of air continues longer and passes quickly. The pressure is increased by improving the flow of air, and the outer diameter air guide groove 41 formed in the outer diameter of the air guide protrusion 50 starts from the inner diameter pipe 40 after the air flowing into the space 23 flows in. As the air flows to reach the end of the air induction protrusion 50, the flow of air is accelerated, so that the intake/exhaust device 10 for pressure adjustment is quickly passed, so in the process of being discharged by the inflow of air, the Bernoulli principle is followed. By moving the air further along, it protects the engine from heat and knocking by making the air go farther, thereby improving fuel economy, reducing smoke, prolonging engine life and reducing noise.

The ratio of the inner diameter pipe 40 and the air guide protrusion 50 is preferably 50 to 70: 5 to 25, and the ratio of the inner diameter pipe 40 and the air guide protrusion 50 is 60: 15 When the air flow is best, the result is that the air flow is best, and by guiding the air to flow longer in a part of the air inlet and discharge, the air flow is quicker and the pressure is kept low to help combustion.

On the other hand, in the outer diameter air guide groove 41 of the inner diameter pipe 40, an air flow rate improving groove 42 is further formed in a stepwise manner to the right when viewed from the top;

The width of the outer diameter air guide groove 41 is wide at the inlet side, and the width of the outer diameter air guide groove 41 is narrower at the outlet side, and is formed only in the inner diameter pipe 40 to aid in the flow of incoming air. It is effective in improving the flow velocity of and reducing the flow separation phenomenon through the occurrence of vortex.

As a result, it can be confirmed that the engine speed increases to 7,600 rpm after the engine speed, which was 4,800 rpm before the installation of the intake/exhaust device 10 for pressure control, is installed, so that the soot is greatly reduced, the thermal efficiency is improved, and the oil consumption is reduced. It was confirmed that it provides the effect of reducing complete combustion.

According to the KD 147 test procedure, the exhaust gas test was carried out twice each before and after installation through a test vehicle that applied the pressure control intake and exhaust device (10) to the Carnival Diesel 2005 Euro 3 (travel distance: 270 km). The soot and nitrogen oxide concentrations were measured.

Comparison of maximum concentration values during KD 147 test Emissions (%) Nitrogen oxide (ppm) Initial state #One 14 642 #2 17 633 Average(a) 15.5 638 When applying the present invention #One 9 650 #2 8 594 Average(b) 8.5 622 % of effect = (b-a)/a -45% -2%

Comparison of the average value at the point of occurrence of the maximum concentration value during the KD 147 test Emissions (%) Nitrogen oxide (ppm) Initial state #One 8.2 600 #2 5.9 583 Average(a) 7.0 591 When applying the present invention #One 4.4 587 #2 4.6 551 Average(b) 4.5 569 % of effect = (b-a)/a -36% -4%

* This is the average value around 3 seconds when the maximum concentration value occurred during the KD 147 emission test.

Based on the calculation method of the KD 147 result, the effect of the improvement of the smoke level was improved by about 40% overall, and this resulted in a great improvement in the smoke reduction in the rapid acceleration section that transitions from a high speed to a high load condition, a driving pattern with very high smoke generation. Can be seen,

It can be seen that nitrogen oxides are opened by about 2-4% overall, and in terms of the average generation amount, it can be seen that about 13% improvement effect has been shown.

10 is an initial state of comparison of soot emission according to the operating load, FIG. 11 is an initial state of the comparison of soot emission according to the operating load of the present invention, and FIG. 12 is an initial state of comparison of nitrogen oxide emission according to the operating load, 13 shows the initial state of the nitrogen oxide emission comparison according to the operating load of the present invention,

In the case of soot, it can be seen that the effect of reducing soot appears under high load operating conditions, and in the case of nitrogen oxides, the improvement effect is evident under normal operating conditions.

This is the average value of the total concentration in the KD 147 emission test Emissions (%) Nitrogen oxide (ppm) Initial state #One 2.1 347 #2 1.6 327 Average(a) 1.9 337 When applying the present invention #One 2.3 299 #2 2.4 290 Average(b) 2.3 295 % of effect = (b-a)/a 23% -13%

CO2 emission can be prepared through the initial state as shown in FIG. 14 and after the present invention is mounted as shown in FIG. 15, and as shown in FIG. 16, the CO2 emission COTOUR MAP is in the initial state, and FIG. 17 is equipped with the present invention. As can be seen later, it was judged to have an effect on the fuel consumption pattern in terms of the trend of CO2 emissions.

The present invention is installed between the engine and the piping of an internal combustion engine to exhaust the inhaled air, and the air is rotated in one direction through the Bernoulli blade installed in the space to improve the combustion efficiency of fuel due to the improvement of air flow. It improves and reduces smoke, and improves air flow according to Bernoulli's principle through the Bernoulli wing, allowing air energy to be supplied farther, reducing the length of the inner tube, and reducing the inner diameter air guide groove and the outer diameter air. It is a very useful invention that helps complete combustion, reduces noise, improves fuel economy, and reduces soot, thereby extending the life of the engine and reducing noise by removing the air introduced through the induction groove longer and passing it faster.

10: intake/exhaust device for pressure control 20: outer diameter pipe
21: flow separation projection 22: arc-shaped guide surface
23: space 25: air backflow prevention groove
30: Bernoulli wing 31: wing tip plane
32: wing slope 33: Bernoulli groove
35: wing tip slope 36: wing tip plane
40: inner diameter pipe 41: outer diameter air guide groove
42: air flow improving groove 43: hollow
44: inner diameter air guide groove 50: air guide protrusion

Claims (7)

In the outer diameter pipe 20 having the arc-shaped guide surface 22 formed on the entrance side, a space 23 is formed and an inner diameter pipe 40 having a space 23 is formed, and the outer diameter pipe 20 and the inner diameter pipe 40 It consists of a Bernoulli wing 30 having a Bernoulli groove 33 on the wing tip plane 31 after connecting the wing inclined surface 32 and the wing tip plane 31 at the entrance side;
The inner diameter pipe 40 further protrudes the air guiding protrusion 50 from the outlet side, and an inner diameter air guiding groove 44 is formed in the inner diameter of the inner diameter pipe 40 and the air guiding protrusion 50, and the inner diameter pipe An intake/exhaust device for pressure control of an internal combustion engine, characterized in that by forming an outer diameter air guide groove (41) on the outer diameter of the air guide projection (40) and (50) to help the flow of air and to control the pressure.
The method of claim 1,
The air induction protrusion 50 is an intake/exhaust device for controlling pressure of an internal combustion engine, characterized in that the ratio of the protrusion length with the inner diameter pipe 40 is 5 to 25: 50 to 70.
The method of claim 1,
The outer diameter air guide groove (41) is an intake/exhaust device for pressure control of an internal combustion engine, characterized in that it is formed in a semicircular shape in the center between the Bernoulli feet (30) when viewed from the bottom surface of the air guide projection (50).
The method of claim 1,
The outer diameter pipe 20 is an intake/exhaust device for pressure control of an internal combustion engine, characterized in that semicircular flow separation protrusions 21 are formed at regular intervals on the arc-shaped guide surface 22 at the inlet side to reduce the flow separation phenomenon.
The method of claim 1,
The outer diameter pipe 20 is an intake/exhaust device for controlling pressure of an internal combustion engine, characterized in that the air backflow prevention groove 25 having a smaller diameter toward the outlet side is further formed.
The method of claim 1,
The outer diameter air guide groove (41) is an intake/exhaust device for controlling pressure of an internal combustion engine, characterized in that the air flow rate improving groove (42) is formed in a stepwise manner from the length of the inner diameter pipe (40).
The method of claim 6,
The air flow rate improving groove 42 is an intake/exhaust device for controlling pressure of an internal combustion engine, characterized in that the inlet side is wide and the outlet side is narrowly connected to the outer diameter air induction groove 41 in a stepwise manner.

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