KR20240037021A - Fuel efficiency improvement, soot purifier and driving performance improve device of internal combustion engine - Google Patents

Abstract

It is installed in the intake and exhaust system connected to the internal combustion engine of a ship or automobile, and is configured to block intake and exhaust reverse flow. It accelerates the air sucked into the engine cylinder to increase the air filling rate and accelerates and discharges combustion gas to achieve combustion. Efficiency is improved and the combustion chamber conditions are optimized by reducing the back pressure of the exhaust gas after-treatment device, thereby increasing engine output, improving fuel efficiency, reducing exhaust emissions, and improving driving performance, thereby reducing fuel and exhaust emissions in ships and automobiles. and a driving performance improvement device are disclosed.

Description

Fuel efficiency improvement, soot purifier and driving performance improve device of internal combustion engine}

The present invention relates to a fuel saving, exhaust smoke reduction, and driving performance improvement device for ships and automobiles. More specifically, it is installed in the intake and exhaust system connected to the internal combustion engine of a ship or automobile, and is configured to block intake backflow and exhaust backflow. By accelerating the air sucked into the engine's cylinder, the filling rate of the air is increased and the combustion gas is accelerated and discharged to improve combustion efficiency. By reducing the back pressure of the exhaust gas post-treatment device and optimizing the conditions of the combustion chamber, the engine's output is improved. This relates to fuel-saving, exhaust-reducing, and driving-performance improvement devices for ships and automobiles that are designed to improve fuel efficiency, reduce exhaust emissions, and improve driving performance.

Internal combustion engines for ships and automobiles include two-stroke engines and four-stroke engines, and these engines are classified into engines that use gasoline and natural gas as ignition engines, and compression ignition engines that use diesel and heavy oil. They all suck in air from the atmosphere, compress it with supplied fuel, and generate power through the power of the explosion.

In internal combustion engines such as ships and automobiles, the output of the engine increases in direct proportion to the amount of air used. Therefore, engine manufacturers are changing this amount by enlarging the cylinder displacement, increasing the number of cylinders, or improving air flow to increase the amount of air used. In other words, in an internal combustion engine that uses air to generate output, the source of output is heat energy generated in the combustion chamber within the cylinder. The combustion chamber is located in the head of the engine and gains power by instantaneously burning the atomized fuel and air trapped there. In order to increase output, more fuel must be burned to increase the energy generated per unit time, and in this case, more air must be used. Inhalation is required. However, combustion alone cannot be increased; in order to achieve certain high efficiency, various surrounding conditions such as intake, exhaust, and fuel must be adjusted.

Therefore, in an internal combustion engine, the intake and exhaust system is a very important device that supplies necessary air to the combustion chamber and quickly discharges combusted gases, thereby increasing the engine's output.

Here, while the engine is running, various complex levels of intake and exhaust pressures that act as resistance to the air flow are generated from the inlet where air is first sucked in to the exhaust port where exhaust gas is finally discharged.

In other words, the path through which air is used from the initial intake port of an internal combustion engine engine to the final exhaust port is the intake port of the air cleaner → intake manifold → intake valve of the head → combustion chamber in the cylinder → exhaust valve of the head → exhaust manifold → exhaust pipe → turbo. It goes through sequentially: charger → exhaust pipe → exhaust gas post-processing device (catalyst) → intermediate pipe → main silencer → exhaust port. Looking at it more broadly, based on the combustion chamber, the intake pressure at the inlet end and the exhaust pressure at the exhaust end appear as great resistance to airflow.

Therefore, due to the structure of the internal combustion engine, there are numerous pressure factors that inevitably reduce the engine's output, and the three largest factors are classified as follows.

The first factor is the valve overlap period. In order to increase charging efficiency by using the inertia of the air flow in the intake system inside the cylinder, both the scavenge and exhaust ports are momentarily open in a 2-stroke engine, and the overlap period is different in a 4-stroke engine. There is a valve overlap period when the intake and exhaust valves are open at the same time. This overlap phenomenon occurs repeatedly from tens to hundreds of times per minute depending on the rotational state of the engine, and during this valve overlap period, the role of maintaining airtightness between the intake and exhaust valves is lost, causing backflow of exhaust into the intake. do. However, if an overlap period is not provided to prevent this, not only will the inertia of the air be used, but the up-and-down reciprocating motion of the piston will be subject to a significant mechanical load of air pressure, which may result in very low efficiency or even complete inoperability. Therefore, the valve overlap period is inevitable. There is no choice but to design it. Therefore, the relatively high-pressure exhaust gas pushes the intake air out of the combustion chamber during the overlap period, which inevitably reduces combustion efficiency.

The second factor is that the expanding gas exploded in the combustion chamber pushes the piston and is rapidly released to the outside through the exhaust valve and exhaust port. At this moment, a vacuum is formed between the inside of the cylinder, which is the origin of the explosion, and the exhaust port, and a reverse flow occurs in which the outside air is sucked into the cylinder through the exhaust port. The reverse flow sucked into the cylinder continues to collide with the exhaust gas trying to be discharged, acting as a high resistance to the exhaust flow, resulting in the inertia of the exhaust being cut off, reducing the exhaust effect and increasing back pressure. Additionally, during the valve overlap period, more residual exhaust flows back into the cylinder, resulting in a further decrease in combustion efficiency.

The third factor is the exhaust gas aftertreatment device and silencer. As exhaust gases from ships and automobiles using fossil fuels pollute the atmosphere and global warming increases, legal restrictions and exhaust gas regulations are imposed under climate agreements between countries. This is a device developed to respond to this. This device neutralizes, captures, or reduces harmful substances such as particulate matter (PM), hydrocarbons (HC), carbon monoxide (CO), nitrogen oxides (NOx), and sulfur oxides (SOx) contained in exhaust gases. .

However, exhaust gas post-processing devices installed on ships and automobiles are installed in a complex manner, including a particulate matter collection filter and a catalyst that is a neutralization and reduction device for oxides, so that the exhaust gas undergoes a lot of flow resistance as it passes through these devices. Due to this flow resistance, high exhaust pressure increases inside the exhaust system, and the combustion conditions in the combustion chamber become unfavorable due to difficulties in intake and exhaust flow, reducing engine output and fuel efficiency. In this way, the relationship between the exhaust gas after-treatment device and the engine is a trade-off relationship in which if one side improves, the other inevitably has to be sacrificed. As exhaust gas regulations are strengthened, the density inside the after-treatment device is also strengthened, increasing the engine's output. And fuel efficiency further deteriorates.

Also, the exhaust gas is very hot and its flow speed is almost the speed of sound, so it makes a violent explosion when released into the atmosphere. The device to prevent this explosion is a silencer, and the inside of the silencer is also complex and passes through several chambers and narrow holes installed in multiple stages to reduce explosion noise. However, although binge drinking decreases, back pressure also increases here, which is a factor in reducing engine output and fuel efficiency.

In addition, due to air pollution and global warming, exhaust gas regulations on internal combustion engines are gradually increasing in the world, especially in developed countries, and fuel reduction projects are being accelerated to reduce carbon dioxide (CO2), a global warming substance. In the case of automobiles, which mostly have internal combustion engines used on land, they are regulated by the Air Quality Act, which has been further strengthened by Euro-VI, and in the case of maritime vehicles, the International Maritime Organization (IMO) has regulated greenhouse gas emissions from ships in accordance with greenhouse gas regulations. Environmental regulations are being significantly strengthened. Therefore, the current situation is that the engine's output and fuel efficiency are inevitably more disadvantageous, and devices that reduce fuel consumption, CO2 generation, and exhaust emissions are desperately needed to prevent air pollution and global warming.

Therefore, in order to respond to the phenomenon that occurs in the intake and exhaust system of an internal combustion engine as described above, the intake system is equipped with a tornado, cyclone, jet valve, turbocharger, intercooler device, etc. and a camshaft with an inertial effect that varies the valve overlap time. The technology is known.

However, the conventional technology uses means to induce a more efficient inertial effect and devices that allow the inhaled air to flow through forced pressure, but when it is difficult to achieve the expected effect and supply at increased density, a cooler is installed to cool the air. There was a problem that the manufacturing cost was very complicated and the manufacturing cost increased due to the complementary device configurations.

Additionally, in the exhaust system, there have been attempts to increase the acceleration of the exhaust by using vortex devices such as cyclones and tornadoes in the middle pipe of the exhaust passage, or to limit reverse flow through check valves, etc.

However, the conventional technology was unable to control backflow due to the nature of the exhaust gas flow, so these devices had the problem of operating due to resistance to exhaust gas discharge.

Accordingly, in order to increase the output and fuel efficiency of the internal combustion engine engine, reduce exhaust emissions, and thereby improve driving performance, the pressure acting as resistance in the intake and exhaust systems is relieved and the air flow is improved to relatively increase output and improve fuel efficiency. Skills that can do it are required.

The present invention was devised to solve the above problems, and its purpose is to be installed in the intake and exhaust system connected to the internal combustion engine of a ship or automobile, and to be configured to block intake backflow and exhaust backflow, thereby preventing intake and exhaust backflow. The goal is to provide devices that can reduce fuel consumption, reduce exhaust emissions, and improve driving performance for ships and automobiles that can solve the resulting decline in combustion efficiency.

In addition, its purpose is to be installed in the intake system connected to the internal combustion engine of a ship or automobile to accelerate the air sucked into the engine's cylinder to increase the filling rate of the air and accelerate the discharge of combustion gas to improve combustion efficiency. It provides fuel saving, exhaust emission reduction, and driving performance improvement devices for automobiles.

In addition, its purpose is to increase engine output, improve fuel efficiency, reduce exhaust emissions, and improve driving performance by optimizing the conditions of the combustion chamber by reducing the back pressure of the exhaust gas aftertreatment device by installing it in the exhaust system connected to the internal combustion engine of a ship or automobile. It provides fuel saving, exhaust reduction, and driving performance improvement devices for ships and automobiles.

The purpose of the present invention is to be installed in the intake and exhaust systems of internal combustion engines of ships and automobiles, and has a passage formed through the left and right longitudinal directions, with a connecting pipe portion formed on the left side relative to the center and a diameter larger than the connecting pipe portion on the right side. A small inner pipe portion is formed, and on the outer surface of the inner pipe portion, a plurality of inner vanes formed by bending the left sides of a plurality of obliquely cut first cut lines inward are formed at equal distances along the same circumferential line, It is arranged to be spaced apart from the outside of the inner pipe portion so that a chamber is formed between the first pipe in which a ventilation hole is formed between the first incision line and the inner vane and the inner pipe portion of the first pipe, and the left end is located inside the inner pipe portion. A second pipe fixed to the outer surface of the pipe portion is connected to the right end of the inner pipe portion and the second pipe so that the right end of the inner pipe portion and the right end of the second pipe are connected to close the chamber, and the air flowing back into the chamber is connected to the right end of the inner pipe portion and the second pipe. It is configured to include a closing cap with an inlet hole formed to allow inflow, and forms a vortex in the air passing through the first pipe through the inner vane to accelerate the flow of air and control backflow, and from the inner pipe portion through the inner vane When the air in the chamber flows in through the ventilation hole due to the accelerated air flow and the air flowing in from the chamber is discharged through the inner pipe along with the air passing through the inner pipe, the chamber becomes a low pressure area relative to the pressure inside the inner pipe. It is configured so that the air flowing back while exiting the first pipe is sucked into the chamber through the inlet hole and discharged through the inner pipe along with the air passing through the inner pipe through the ventilation hole. Ships and automobiles This can be achieved by providing fuel reduction, exhaust emission reduction, and driving performance improvement devices.

The device for reducing fuel, reducing exhaust emissions, and improving driving performance for ships and automobiles according to the present invention is installed in the intake and exhaust systems connected to the internal combustion engines of ships and automobiles, and is configured to block intake reverse flow and exhaust reverse flow, thereby reducing intake reverse flow and It has the effect of resolving the decrease in combustion efficiency caused by exhaust backflow.

In addition, it is installed in the intake system connected to the internal combustion engine of a ship or automobile, accelerating the air sucked into the engine's cylinder to increase the filling rate of the air and accelerating the discharge of combustion gases to improve combustion efficiency.

In addition, by installing it in the exhaust system connected to the internal combustion engine of a ship or automobile, it can reduce the back pressure of the exhaust gas aftertreatment device and optimize the conditions of the combustion chamber, thereby increasing engine output, improving fuel efficiency, reducing exhaust emissions, and improving driving performance. There is an effect.

1 is an exploded perspective view of a device for reducing fuel, reducing exhaust emissions, and improving driving performance for ships and automobiles according to the present invention;
Figure 2 is a perspective view of a combined fuel reduction, exhaust emission reduction, and driving performance improvement device for ships and automobiles according to the present invention;
Figure 3 is a cross-sectional view of the combined fuel reduction, exhaust emission reduction, and driving performance improvement device for ships and automobiles according to the present invention;
Figure 4 is a combined cross-sectional view showing the fuel reduction, exhaust emission reduction and driving performance improvement device for ships and automobiles according to the present invention installed in the intake system of the engine;
Figure 5 is a combined cross-sectional view showing the fuel reduction, exhaust emission reduction, and driving performance improvement device for ships and automobiles according to the present invention installed in the exhaust system of the engine.

Hereinafter, with reference to the attached drawings, a device for reducing fuel, reducing exhaust emissions, and improving driving performance of ships and automobiles according to the present invention will be described in detail.

The attached Figure 1 is an exploded perspective view of the fuel reduction, exhaust emission reduction and driving performance improvement device for ships and automobiles according to the present invention, and Figure 2 is an exploded perspective view of the fuel savings, exhaust emission reduction and driving performance improvement device for ships and automobiles according to the present invention. It is a combined perspective view, and Figure 3 is a combined cross-sectional view of the fuel saving, exhaust emission reduction, and driving performance improvement device for ships and automobiles according to the present invention.

Referring to the attached drawings, the fuel saving, exhaust emission reduction, and driving performance improvement device for ships and automobiles according to the present invention is installed in the intake and exhaust systems of internal combustion engines of ships and automobiles to reduce intake and exhaust reverse flow and exhaust reverse flow in the intake and exhaust systems. It is intended to solve the decrease in combustion efficiency caused by, and is composed of a first pipe (100), a second pipe (200), and a closing cap (300).

The first pipe 100 is shaped like a pipe and has a passage formed through it in the left and right longitudinal directions. In addition, the first pipe 100 has a connecting pipe portion 110 formed on the left side of the center, and an inner pipe portion 120 having a smaller diameter than the connecting pipe portion 110 is formed on the right side.

And on the outer surface of the inner pipe portion 120, a plurality of inner vanes 122 are formed by bending the left side of the plurality of obliquely cut first cut lines 121 inward and are formed at equal distances along the same circumferential line. do. Here, the same circumferential line means the outer periphery of the same position. Accordingly, a ventilation hole 123 is formed between the first cutting line 121 and the inner vane 122. That is, in the portion where the inner vanes 122 are formed, the diameter of the inner pipe portion 120 is reduced by each inner vane and a vortex is generated, thereby increasing the speed of air passing through the inner pipe portion 120.

The second pipe 200 is arranged to be spaced apart from the outside of the inner pipe portion 120 so as to be concentric with the inner pipe portion 120 of the first pipe 100, and the left end is on the outer surface of the inner pipe portion 120. It is fixed. Accordingly, a chamber 130 is formed between the inner pipe portion 120 of the first pipe 100 and the second pipe 200.

In addition, preferably, the inner pipe portion 120 of the first pipe 110 has an annular inclined fixing surface 125 formed at the right end sloping downward from the left end of the connecting pipe toward the inner pipe portion, and a fixed surface 125 along the outer circumference at the right end. A compression fastening portion 126 in which a plurality of fastening pieces 126b are formed is formed by the cut portions 126a formed at intervals.

In addition, the second pipe 200 is bent inward from the left end at the left end, and is formed in an annular shape inclined toward the center of the second pipe corresponding to the inclined fixing surface 125, and is in close contact with the inclined fixing surface 126. It is fitted and coupled to form a fixing tube part 210 that fixes the left side of the second tube 200 to the inner tube part 120 and finishes the left side of the chamber 130, and is annularly fixed along the outer surface at the right end. A groove 220 is formed.

The closing cap 300 is coupled to the right end of the inner pipe portion 120 and the second pipe 200 so that the right end of the inner pipe portion 120 and the right end of the second pipe 200 are connected to the chamber 130. It is a member that closes. Additionally, an inlet hole 343 is formed in the closing cap 300 to allow air flowing back into the chamber 130 to flow in.

More specifically, the finishing cap 300 is inserted into the fixing groove 220 and is spaced to the right from the outer coupling pipe portion 310 and coupled to the outer surface of the second pipe 200. The compression fastening portion 126 of the first pipe 100 is inserted into the inner coupling pipe portion 320 and coupled to the outer surface of the fixing pipe portion 120 of the first pipe 100, and the outer coupling pipe portion 310. It is installed at an angle so that the left end and the left end of the inner coupling pipe part 320 are connected and consists of an inclined finishing plate 330 that finishes the right side of the chamber 130.

Furthermore, on the outer surface of the inclined finishing plate 330, a plurality of external vanes 342 formed by bending the right sides of the plurality of obliquely cut second cutting lines 341 inward are spaced at equal distances along the same circumferential line. It is formed by leaving Accordingly, the inlet hole 343 is formed between the second cut line 341 and the external vane 342.

The device for reducing fuel, reducing emissions and improving driving performance of a vehicle according to the present invention configured as described above forms a vortex in the air passing through the first pipe 100 through the inner vane 122 to accelerate the flow of air and reverse flow. control.

In addition, air in the chamber 130 is introduced through the ventilation hole 123 by the flow of air accelerated through the inner vane 122 in the inner pipe portion 120 of the first pipe 100, and the chamber ( When the air introduced from 130 is discharged through the inner tube 120 together with the air passing through the inner tube 120, a low pressure area is formed in the chamber 130 relative to the pressure within the inner tube 120. Accordingly, the air that flows back while exiting the first pipe 100 is sucked into the chamber 130 through the inlet hole 343 and the inner pipe portion together with the air passing through the inner pipe portion 120 through the ventilation hole 123. It is configured to be discharged through (120).

Now, the operation and effect of an embodiment in which the fuel reduction, exhaust emission reduction, and driving performance improvement device for ships and automobiles according to the present invention configured as described above is installed in the intake system and exhaust system of the engine will be described with reference to FIGS. 4 and 5.

The fuel saving, exhaust emission reduction, and driving performance improvement device for ships and automobiles according to the present invention is installed to solve the various problems described above and the decrease in combustion efficiency due to intake backflow and exhaust backflow in the intake and exhaust systems.

First, Figure 4 shows an embodiment in which the fuel saving, exhaust reduction, and driving performance improvement device for ships and automobiles according to the present invention is installed in the intake system of the engine. It is installed at the inlet of the manifold 10 in the intake system. It is most desirable.

In this embodiment, which is installed at the inlet of the manifold (10), the external air sucked in by the valve overlap and pulsation wave passes through the first pipe (100) and the internal vane installed in the inner pipe part (120) of the first pipe. A vortex is formed through (122), accelerating the flow of air, increasing the density of the air, and supplying it into the cylinder. Therefore, the air sucked into the cylinder has a higher filling rate, thereby increasing the combustion efficiency of the fuel, and the combustion gas generated inside the cylinder is accelerated and discharged to maximize combustion efficiency.

In addition, intake reverse flow occurs in the intake system inside the cylinder during valve overlap, which inevitably occurs due to the structural characteristics of the internal combustion engine engine. In other words, the overlap phenomenon occurs repeatedly from tens to hundreds of times per second depending on the rotational state of the engine, and during this valve overlap period, the role of maintaining airtightness between the intake and exhaust valves is lost, causing backflow of intake air.

At this time, the reversed intake air flows into the chamber 130 through the inlet hole 343 formed in the closing cap 300. That is, air in the chamber 130 is introduced through the ventilation hole 123 by the flow of air accelerated through the inner vane 122 in the inner pipe portion 120 of the first pipe 100, and the chamber 130 The air introduced from is discharged through the inner pipe portion 120 together with the air passing through the inner pipe portion 120. At this time, as a relatively low pressure area is formed in the chamber 130 compared to the pressure within the inner tube 120, the reversed intake air flows into the chamber 130 through the inlet hole 343 due to an inertial effect. In addition, the reversed intake air flowing into the chamber 130 enters the inner tube part 120 through the ventilation hole 123 due to a pressure difference and flows through the inner tube part 120 together with the air passing through the inner tube part 120. It is re-inhaled into the cylinder. Therefore, the filling power of fresh air sucked into the cylinder during the valve overlap period is improved, thereby improving engine output and fuel efficiency.

Here, the effect of this inertia can also relieve the intake air pressure inside the turbocharger and intercooler installed in the intake system, thereby increasing the intake air filling efficiency inside the cylinder.

Next, Figure 5 shows an embodiment in which the fuel reduction, exhaust emission reduction, and driving performance improvement device for ships and automobiles according to the present invention is installed in the exhaust system of the engine, and the tail pipe (20) located at the end of the exhaust system ) The connection part 110 of the first pipe 100 is inserted and installed.

Here, according to this embodiment, the connection pipe portion 110 of the first pipe 100 is compression-fitted with a plurality of fitting pieces 111b formed by cutting grooves 111a formed at regular intervals along the outer circumferential direction at the left end. Part 111 is formed. With this configuration, when the first pipe 100 is installed in the tail pipe 20 of the exhaust system, the first pipe 100 is easily inserted into the tail pipe 20 through the compression fitting portion 111. It can be easily combined and separated.

In this embodiment, which is installed in the tail pipe 20, the exhaust gas discharged from the cylinder after the explosion process of the internal combustion engine passes through the tail pipe 20 and is then discharged through the first pipe 100 connected to the tail pipe. do. At this time, as the exhaust gas discharged through the first pipe 100 passes through the first pipe 100, a vortex is formed through the inner vane 122 installed in the inner pipe part 120 of the first pipe, thereby causing the air flow to increase. As it accelerates and the density of the air increases, it is discharged to the outside. Therefore, it is possible to increase the exhaust speed of exhaust gas.

In addition, in the first pipe 100 after the exhaust gas after explosive combustion is discharged, an exhaust backflow phenomenon occurs in which external air flows into the exhaust system due to a pressure difference due to an instantaneous negative pressure in the exhaust system. That is, when the exhaust gas in the exhaust system is momentarily exhausted, the pressure in the exhaust system decreases. Therefore, external air flows inward through the first pipe 100.

At this time, the backflowed exhaust flows into the chamber 130 through the inlet hole 342 formed in the finishing cap 300.

That is, air in the chamber 130 is introduced through the ventilation hole 123 by the flow of exhaust gas accelerated through the inner vane 122 in the inner pipe portion 120 of the first pipe 100, and the chamber 130 ) The air introduced from the inner pipe portion 120 is discharged through the inner pipe portion 120 together with the exhaust gas passing through the inner pipe portion 120. At this time, as a relatively low pressure area is formed in the chamber 130 compared to the pressure within the inner pipe portion 120, the backflowed exhaust flows into the chamber 130 through the inlet hole 342 due to an inertial effect.

Then, the backflowed exhaust gas flowing into the chamber 130 enters the inner pipe portion 120 of the first pipe 100 through the ventilation hole 123 due to the pressure difference, and then returns to the first pipe along with the discharged exhaust gas. It is discharged to the outside of the pipe 100. At this time, when the reversed exhaust changes direction and is discharged to the outside, the discharge speed of the exhaust gas can be further increased, thereby increasing the exhaust speed. Therefore, by reducing the exhaust resistance due to outdoor air and increasing the exhaust gas discharge speed, combustion efficiency and output are improved and exhaust smoke is reduced.

The fuel reduction, exhaust emission reduction, and driving performance improvement device for ships and automobiles according to the present invention configured as described above can solve various shortcomings of conventional technologies and the decrease in combustion efficiency due to intake backflow and exhaust backflow in the intake and exhaust systems. There is an advantage.

In addition, the present invention is installed at the intake manifold inlet to accelerate the air sucked into the cylinder and return the air flowing back to be re-inhaled with the intake air, thereby increasing the inertial force of the intake and filling the cylinder with fresh air at the time of valve overlap. It has the advantage of being able to improve output and fuel efficiency.

In addition, the present invention is installed at the final end of the exhaust port to accelerate the final discharge of the exhaust gas and control the backflow of the negative pressure wave entering the exhaust port to induce the inertia of the exhaust, thereby blocking the residual exhaust gas flowing back into the cylinder. This has the advantage of improving engine output and fuel efficiency by further strengthening intake efficiency during the valve overlap period.

In addition, the present invention relieves intake and exhaust pressures in engines with complex intake and exhaust passages such as a turbocharger or intercooler additionally installed in the intake system and an exhaust gas post-processing device and silencer installed in the exhaust system. It has the advantage of improving efficiency.

Additionally, the present invention has the advantage of eliminating backfire caused by exhaust backflow during valve overlap in gasoline diesel, LPG, and LNG engines.

In addition, the present invention has the advantage of being able to relieve pressure and significantly reduce intake and exhaust noise by re-inhaling or re-discharging backflow air in direct proportion to the intake and discharge amount of air and speed according to the rotation speed of the engine.

In addition, the present invention has the advantage of improving combustion efficiency by improving the intake and exhaust of the engine, thereby achieving effects such as increasing engine output, improving fuel efficiency, reducing exhaust emissions, and improving driving performance.

100: Pipe 1 110: Connector section
120: Internal pipe 121: 1 incision line
122: internal vane 123: ventilation hole
200: 2nd pipe 210: Fixed pipe part
220: Fixing groove 300: Finishing cap
310: outer joining pipe 320: inner joining pipe
330: Inclined finishing plate 341: Second incision line
342: External vane 343: Inlet hole

Claims (3)

It is installed in the intake and exhaust systems of internal combustion engines of ships and automobiles.
It has a flow path formed through the left and right longitudinal directions, with a connecting pipe portion formed on the left side based on the center and an inner pipe portion having a smaller diameter than the connecting pipe portion being formed on the right side, and a plurality of first incisions made obliquely on the outer surface of the inner pipe portion. A first pipe in which a plurality of internal vanes formed by bending the left side of the line inward are formed at equal distances on the same circumferential line, and a ventilation hole is formed between the first incision line and the internal vanes;
a second pipe disposed to be spaced apart from the outside of the inner pipe portion so that a chamber is formed between the inner pipe portion of the first pipe and the left end of which is fixed to the outer surface of the inner pipe portion;
It is coupled to the right end of the inner tube part and the right end of the second tube so that the right end of the inner tube part is connected to the right end of the second tube, closes the chamber, and includes a closing cap with an inlet hole formed to allow air flowing back into the chamber to flow into the chamber. Became,
Forming a vortex in the air passing through the first pipe through the internal vane accelerates the flow of air and controls backflow,
When the air in the chamber is introduced through the ventilation hole by the flow of air accelerated through the inner vane in the inner pipe portion and the air introduced from the chamber is discharged through the inner pipe portion along with the air passing through the inner pipe portion, the pressure in the inner pipe portion Compared to this, the chamber is configured to form a relatively low pressure area, so that the air flowing back while exiting the first pipe is sucked into the chamber through the inlet hole and discharged through the inner pipe along with the air passing through the inner pipe through the ventilation hole. A fuel saving, exhaust reduction and driving performance improvement device for ships and automobiles, characterized in that it is configured to do so.
According to paragraph 1,
In the inner pipe part of the first pipe, an annular inclined fixing surface is formed at the right end sloping downward from the left end of the connecting pipe part toward the inner pipe part, and a compression section in which a plurality of fastening pieces are formed by cuts formed at regular intervals along the outer circumference at the right end A fastening part is formed,
The second pipe is bent inward from the left end at the left end, is formed in an annular shape inclined toward the center of the second pipe corresponding to the inclined fixing surface, and is tightly fitted to the inclined fixing surface, so that the second pipe is attached to the inner pipe portion. A fixing pipe part is formed to finish the left side of the chamber while fixing the left side of the chamber, and an annular fixing groove is formed along the outer surface at the right end,
The closing cap has an outer coupling pipe part that is inserted into the fixing groove and coupled to the outer surface of the second pipe, and a compression fastening part of the first pipe that is spaced to the right from the outer coupling tube part and is coupled to the outer surface of the fixing tube part of the first pipe. It consists of an inner coupling pipe portion, an inclined finishing plate installed at an angle so that the left end of the outer coupling pipe portion and the left end of the inner coupling pipe portion are connected, and finishing the right side of the chamber,
On the outer surface of the inclined finishing plate, a plurality of external vanes formed by bending the right sides of a plurality of second obliquely cut lines inward are formed at equal distances along the same circumferential line,
A device for saving fuel, reducing exhaust fumes, and improving driving performance for ships and automobiles, wherein the inlet hole is formed between the second cutting line and the external vane.
According to paragraph 1,
In the connection pipe portion of the first pipe, a compression fitting portion in which a plurality of fitting pieces are formed by cutting grooves formed at regular intervals along the outer circumferential direction is formed at the left end,
When the first pipe is installed in the tail pipe of the exhaust system, the first pipe can be easily coupled to and separated from the tail pipe through the compression fitting portion. Driving performance improvement device.

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