KR100953454B1 - Intake pressure elimination backflow prevention device for internal combustion engine - Google Patents

Abstract

The present invention relates to an intake pressure removing backflow prevention device for an internal combustion engine, and more particularly, a venturi pipe principle between a secondary intake pipe and a secondary intake pipe formed with a plurality of fixed holes through which a fixed jaw protrudes along an outer circumferential surface thereof. One end is fixed to the inner circumferential surface of the secondary intake pipe so as to form a reverse air flow path of the air inlet, bent to the center of the secondary intake pipe toward the other end, and the air suction pipe is provided with a fixed tube of venturi tube structure in which a plurality of fixed pipe flow holes are formed along the circumferential surface. And the throttle body, the connection between the throttle body and the surge tank, and the connection between the intake manifold and the internal combustion engine.

According to the configuration as described above, it is possible to facilitate the inflow of the mixed gas, as well as to easily re-inflow and circulate backflow gas back flow can improve the performance of the internal combustion engine by inducing complete combustion, improve fuel efficiency It also improves power output, reduces smoke, maximizes thermal energy efficiency, and installs a plurality of internal combustion engine intake pipes to intake air more quickly and smoothly. You can.

Internal combustion engine, intake pipe structure, intake pressure elimination, backflow prevention

Description

The inhalation pressure removal backward preventing apparatus for the internal combustion engine

The present invention relates to an intake pressure removing backflow prevention device, and more particularly, the inside of the vent hole, and a plurality of fixing holes through which the fixing jaw protrudes along the outer circumferential surface between the secondary intake pipe and the secondary intake pipe. One end is fixed to the inner circumferential surface of the secondary intake pipe to form an airflow passage, and is bent to the center of the secondary intake pipe toward the other end, and has a fixed tube having a venturi tube structure in which a plurality of fixed pipe flow holes are formed along the circumferential surface.

The secondary intake pipe and the fixed pipe are installed in at least one of the air intake pipe and the throttle body, the connection of the throttle body and the surge tank, and the connection of the intake manifold and the internal combustion engine.

According to the configuration as described above, it is possible to improve the performance of the internal combustion engine as well as to speed up the inflow of the mixed gas, as well as to easily re-introduce the reverse flow of backflow gas to induce complete combustion, improve fuel economy and output It can improve and reduce soot and maximize thermal energy efficiency.

Further, the present invention relates to an intake pressure removing backflow prevention device for an internal combustion engine, in which a plurality of internal combustion engines are installed inside the intake pipe structure to intake air more quickly and smoothly, and at the same time, the reverse airflow gas is also rapidly re-introduced and circulated.

In general, an internal combustion engine generates four outputs in the order of intake, compression, explosion, and exhaust, and this output causes the drive shaft to rotate to operate the mechanism.

In this four-stroke intake, the external air is introduced, mixed with the atomized fuel during movement, and supplied to the combustion chamber of the cylinder.

When the mixed gas is sucked into the combustion chamber, the cylinder rises to compress the mixed gas, and then sparks are generated in the spark plug, causing the compressed mixed gas to explode. The explosion causes the cylinder to move downward to generate power.

In addition, the exploded exhaust gas is discharged to the outside through the exhaust pipe, and the mixed gas again fills the combustion chamber.

As such, four strokes are repeated in succession, and output is continuously generated, and the four stroke time is shortened to increase the output.

However, the mixed gas sucked after exhausting the exhaust gas combusted in the exhaust and intake stages during the 4th stroke should be supplied to the combustion chamber, but the combustion residual gas and the exhaust gas of the unvented combustion chamber flow back to the combustion chamber, and the introduced combustion After the gas and the mixed gas are filled together, there is a problem that the output is reduced by compression and explosion.

This is because when the mixed gas passing through the air suction pipe and the throttle body is combusted and discharged in the combustion chamber, the exhaust gas flows back as the exhaust gas flows back into the combustion chamber due to the exhaust pressure and the valve overlap, and the exhaust gas flows back into the combustion chamber. Inflow of the mixed gas is prevented by the airflow gas, and incomplete combustion is induced.

In addition, when the mixed gas is inhaled, the amount of the mixed gas sucked into the combustion chamber of the cylinder is less than the amount of the mixed gas supplied, so that the mixed gas remaining in the intake manifold is flowed back by the mixed gas continuously supplied through the throttle body. Problems that interfere with inspiration occur.

Accordingly, the present invention has been devised to solve the above problems, the inside of the vent hole, and a plurality of fixing holes through the fixing jaw between the secondary intake pipe and the secondary intake pipe formed along the outer circumferential surface of the principle of the venturi tube principle One end is fixed to the inner circumferential surface of the secondary intake pipe to form an airflow passage, and is bent to the center of the secondary intake pipe toward the other end, and has a fixed tube having a venturi tube structure in which a plurality of fixed pipe flow holes are formed along the circumferential surface.

The secondary intake pipe and the fixed pipe are installed in at least one of the air intake pipe and the throttle body, the connection of the throttle body and the surge tank, and the connection of the intake manifold and the internal combustion engine.

According to the configuration as described above, it is possible to improve the performance of the internal combustion engine as well as to speed up the inflow of the mixed gas, as well as to easily re-introduce the reverse flow of backflow gas to induce complete combustion, improve fuel economy and output It can improve and reduce soot and maximize thermal energy efficiency.

In addition, it is an object of the present invention to provide an intake pressure removing backflow prevention device for an internal combustion engine, in which a plurality of internal combustion engines are installed inside the intake pipe structure to intake air more quickly and smoothly, and at the same time, the reverse air flow is also quickly re-introduced and circulated.

In order to achieve the above object, the present invention provides an intake pipe structure of an internal combustion engine having an air suction pipe, a throttle body, a surge tank, an intake manifold, and the like to supply a mixed gas mixed with fuel supplied separately from the outside air to be sucked to the internal combustion engine. It is located inside the through-hole so that the mixed gas is introduced, the fixed jaw through which a plurality of fixing holes are protruded along the outer circumferential surface, and one end is fixed to the inner circumferential surface of the secondary intake pipe, the other end of the secondary intake pipe It is bent to the center, and comprises a fixed tube of the venturi tube structure formed with a plurality of fixed tube flow holes along the circumferential surface, and between the fixed tube and the secondary intake pipe, the reverse air flow flowing back to the combustion chamber does not flow into the combustion chamber The inlet air flow path formed by the venturi pipe principle in which the inlet gas flows into the inlet air stream is fixed through the fixed pipe flow port. The secondary intake pipe and the fixed pipe are connected to the air intake pipe and the throttle body, the throttle body and the surge tank, and the connection between the intake manifold and the internal combustion engine so that the secondary intake pipe and the fixed pipe are circulated back to the combustion chamber along with the continuously inhaled mixed gas. It is installed on any one or more.

Preferably, the other end of the fixed tube is further provided with internal communication having a honeycomb (honeycomb) structure.

And it is installed on the inside of the fixed tube to minimize the impact of the backflow gas from the fixed tube flow port with the intake, the inlet tube wings for increasing the intake rate of intake quickly and smoothly is further provided.

The fixed tube wing may include a plurality of wings installed at regular intervals along an inner circumferential surface of the fixed tube between the plurality of fixed tube flow ports, and a conical wing body positioned at the center of the fixed tube in which the plurality of wings contact each other.

The blade is bent to be inclined at a baseline in the inflow direction.

In addition, the other end of the fixed tube is further provided with a wing communication having a honeycomb (honeycomb) structure.

And installed inside the fixed tube, bent inclined toward the center so as to decrease the cross-sectional area toward the inlet direction of the intake to increase the speed of the intake, the second backflow flow passage communicating with the fixed tube flow port between the inner peripheral surface of the fixed tube Fixing tube wings to form are further provided.

In addition, the wing communication having a honeycomb (honeycomb) structure is further provided inside the intake inlet end of the fixed tube wing.

As described above, according to the intake pressure removing backflow prevention device for the internal combustion engine according to the present invention, the inflow backflow gas flowing back in the intake air induction into the backflow passage of the principle of the venturi tube formed between the secondary intake pipe and the fixed pipe, The reversed airflow can be prevented from interfering with the inflow of the intake air because the inflow airflow can be moved to the inside of the fixed pipe which is the venturi pipe through the fixed pipe flow port, and can be introduced into the combustion chamber of the engine quickly and smoothly with the newly introduced intake air. .

As such, when the intake pressure is removed by preventing the inflow of backflow gas, the performance of the internal combustion engine can be improved by inducing complete combustion with the inflow of a fast and smooth mixture gas, thereby improving fuel efficiency, improving output and reducing smoke. And maximize thermal energy efficiency.

In addition, by installing a plurality of secondary intake pipe and a fixed tube inside the intake pipe structure, it is a very useful and effective invention that allows the intake air more quickly and smoothly inflow and at the same time to re-introduce the reverse air flow.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

In addition, the present embodiment is not intended to limit the scope of the present invention, but is presented by way of example only, and various modifications may be made without departing from the technical gist of the present invention.

1 is a view showing an intake pressure removing backflow prevention device for an internal combustion engine according to the present invention, Figure 2 is a view showing a partial cross-sectional perspective view taken along the line AA 'of Figure 1, Figure 3 according to the present invention 4 is a side cross-sectional view of the intake pressure removing backflow preventing device for an internal combustion engine, and FIG. 4 is a view illustrating an air inflow state of the intake pressure removing backflow preventing device for an internal combustion engine according to the present invention, and FIG. FIG. 6 is a view illustrating a state in which internal communication is further provided in the intake pressure removing backflow prevention device for an engine, and FIG. FIG. 7 is a view illustrating another embodiment in which an intake pressure removing backflow prevention device for an internal combustion engine is further provided with a fixed tube blade, and FIG. 8 is a seal further provided with a wing communication in FIG. 7. 9 is a view showing an example, Figure 9 is a view showing another embodiment in which a fixed tube wing is further provided in the intake pressure removing backflow prevention device for an internal combustion engine according to the present invention, Figure 10 is a wing communication in Figure 10 11 is a view showing an embodiment provided, Figure 11 is a view showing an installation state of the intake pressure removing backflow prevention device for the internal combustion engine according to the present invention.

As shown in the figure, the intake pressure removing backflow prevention device 10 for the internal combustion engine is composed of a secondary intake pipe 100 and the fixed pipe 110, the secondary intake pipe 100 and the fixed pipe 110 has a concentric circle. It is made of different diameters.

The secondary intake pipe 100 is fixed inside the intake pipe structure 1 for introducing air to the internal combustion engine, and is fixed to a portion to which each component of the intake pipe structure 1 is connected.

In other words, the air intake pipe (2) and the throttle body (3), the throttle body (3) and the surge tank (4), and the intake manifold (5) and the engine (6) is connected to any one or more of the connection to remove the intake pressure As a result, the backflow gas is quickly and smoothly flowed back into the combustion chamber with the new intake air.

Inside the secondary intake pipe 100, the fixing jaw 102 is formed to protrude along the outer circumferential surface, a plurality of fixing holes 104 are formed at regular intervals along the fixing jaw 102.

The fixing jaw 102 of the secondary intake pipe 100 is connected to the air suction pipe 2, the throttle body 3, the throttle body 3, the surge tank 4, the intake manifold 5 and the engine 6. It is fitted to be fixed by a separate fixing member (not shown).

And inside the secondary intake pipe 100, a fixed tube 110 formed with a plurality of fixed tube flow openings 112 are installed along the outer circumferential surface and protected by the secondary intake pipe 100, and the fixed pipe 110 and the secondary intake pipe 100 Between the) to form an open air flow passage 120 to one side.

In other words, the fixed pipe 110 is one end is fixed to the inside of the secondary intake pipe 100, the other end is bent toward the center to form a reverse air flow passage 120 is opened to the other end, the reverse air flow passage ( 120 is formed to communicate with the other end of the fixed tube flow opening 112 is open.

This is because, due to the structure of the internal combustion engine, the intake pressure is generated in the combustion chamber of the cylinder to hinder the inflow of the mixed gas, and the intake air flowing back due to the reverse flow of the mixed gas occurs. It is to move the reverse air flow to the reverse air flow path 120 to be circulated.

As described above, when the backflow gas moves along the backflow passage 120, the backflow gas moves to the inside of the fixed pipe 110 through the fixed pipe flow port 112 formed in the fixed pipe 110, and the moved backflow gas flows in. The new external air is rapidly introduced into the combustion chamber of the engine 6 to induce complete combustion.

At this time, the fixed tube 110 is formed inclined toward the center from one end coupled to the second intake pipe 100 toward the other end to increase the inflow rate of the mixed gas and at the same time, the secondary intake pipe 100 The cross-sectional area of both ends of the backflow passage 120 is differently formed by changing the separation distance from the backplane.

As such, if the cross-sectional area of the reverse air flow passage 120 is gradually increased from one end communicated with the fixed pipe flow port 112 to the other end, the speed of the reverse air flow flowing into the other end is increased to increase the inflow of the reverse air flow gas. It is to guide quickly and smoothly, and to easily pass through the fixed tube flow port (112).

And as shown in Figure 5, the other end of the fixed tube 110, the internal communication 130 is installed, the internal communication 130 is made of a honeycomb (honeycomb) structure of the intake air generated at the edge of the fixed tube 110 Prevents diffusion and allows for faster and smoother inflow.

As shown in Figure 6 to 8, the fixed tube wing 140 is installed inside the fixed tube 110 can be introduced to the intake air more quickly, the inlet tube flow opening 112 by the smooth inlet of the intake Through the backflow gas introduced into the fixed tube 110 can be quickly introduced.

The fixed tube wing 140 is composed of a wing body and a plurality of wings, the wings are respectively installed inside the fixed tube 110 between the plurality of fixed tube flow openings 112, the wing body is made of a conical shape, the plurality of wings are mutually It is installed in the center of contact.

At this time, the wing body is made of a conical shape in the present invention, if the structure that can make the flow of intake quickly and smoothly inside the fixed tube 110 can be installed in a different shape.

On the other hand, as shown in Figure 8, in another embodiment of the fixed tube wing 140 ', the blade is bent to be inclined in a predetermined line in the inflow direction can be introduced into the intake air inlet quickly, accordingly fixed tube flow port 112 It is possible to quickly recirculate the backflow gas passed through).

And the non-fixed end (the other end) of the fixed tube 110 is provided with a wing communication 150 of the honeycomb (honeycomb) structure to intake the intake more quickly, the inlet tube flow opening 112 by the smooth inlet of the intake It is possible to quickly move the backflow gas introduced through.

In addition, as shown in Figure 10, the fixed tube wing 140 "is installed inside the fixed tube 110, one end is connected to the inner circumferential surface of the fixed tube 110, the other end is bent toward the center direction.

In other words, the fixed tube wing 140 "is formed to be inclined toward the center so that the cross-sectional area decreases toward the inflow direction (the other end) of the intake air, thereby forming a second reverse air flow path 160" between the fixed pipe 110 and the fixed pipe 110. .

When the other end of the fixed tube wing 140 ″ is inclined toward the center direction, the inflow rate of the intake air flowing into the intake pipe structure 1 is increased and thus can be easily introduced.

In addition, the second backflow passage 160 ″ prevents backflow in the reverse direction of the intake pipe structure 1 while the backflow gas flowing into the backflow passage 120 passes through the fixed pipe flow port 112. As a result, the backflow gas can be introduced more quickly.

In addition, the other end of the fixed tube wing (140 ") is provided with a wing communication (150") of the honeycomb (honeycomb) structure to facilitate intake more easily, through the fixed tube flow opening 112 by the smooth inlet of the intake It is desirable to quickly introduce the introduced backflow gas.

11, the intake pressure removing backflow prevention device 10 including the secondary intake pipe 100 and the fixed pipe 110 includes an air intake pipe 2 and a throttle body 3 of the intake pipe structure 1. And at least one of a throttle body 3, a surge tank 4, and an intake manifold 5 and an engine 6 connection portion.

As such, the intake pressure removing backflow prevention device 10 includes an air intake pipe 2, a throttle body 3, a throttle body 3, a surge tank 4, an intake manifold 5, and an engine 6 connection part. If installed in any one or more, the backflow gas generated in each section is introduced to the combustion chamber quickly with the new mixed gas introduced by the re-introduced circulation.

1 is a view showing an intake pressure removing backflow prevention device for an internal combustion engine according to the present invention,

FIG. 2 is a partial cross-sectional perspective view taken along the line AA ′ of FIG. 1;

3 is a side cross-sectional view of the intake pressure removing backflow prevention device for an internal combustion engine according to the present invention;

4 is a view showing an air inlet state of the intake pressure removing backflow prevention device for an internal combustion engine according to the present invention,

5 is a view showing a state in which the internal communication is further provided in the intake pressure removing backflow prevention device for the internal combustion engine according to the present invention,

6 is a view showing an embodiment further provided with a fixed tube blade in the intake pressure removing backflow prevention device for an internal combustion engine according to the present invention,

7 is a view showing another embodiment further provided with a fixed tube blade in the intake pressure removing backflow prevention device for an internal combustion engine according to the present invention,

8 is a view showing an embodiment in which the wing communication is further provided in FIG.

9 is a view showing another embodiment further provided with a fixed tube blade in the intake pressure removing backflow prevention device for an internal combustion engine according to the present invention,

FIG. 10 is a view illustrating an embodiment in which wing communication is further provided in FIG. 10.

11 is a view showing an installation state of the intake pressure removing backflow prevention device for an internal combustion engine according to the present invention.

<Description of Symbols for Main Parts of Drawings>

1: Intake pipe structure 10: Intake pressure removing backflow prevention device

100: secondary intake pipe 102: fixed jaw

104: fixing hole 110: fixing tube

112: fixed pipe flow opening 120: backflow passage

130: internal communication 140, 140 ', 140 ": fixed tube wing

150, 150 ": wing communication 160": second reverse air flow path

Claims (8)

The mixed gas is located in the intake pipe structure (1) of the internal combustion engine having an air intake pipe, a throttle body, a surge tank, an intake manifold, and the like to supply a mixed gas mixed with the supplied outside air and the fuel supplied to the internal combustion engine. A second intake pipe 100 through which an inside is introduced so as to be introduced, and a fixing jaw 102 through which a plurality of fixing holes 104 are formed protrudes along an outer circumferential surface thereof; And One end is fixed to the inner circumferential surface of the secondary intake pipe 100, the other end is bent to the center of the secondary intake pipe 100, the fixed tube 110 of the venturi tube structure formed with a plurality of fixed pipe flow holes 112 along the circumferential surface It is made, including Between the fixed pipe 110 and the secondary intake pipe 100, backflow flow introduced by forming a backflow passage 120 of the venturi tube principle in which a backflow gas flows back because it does not flow into the combustion chamber among the inflowing mixed gases. To guide the gas through the fixed tube flow port 112 into the fixed tube 110 to circulate back to the combustion chamber along the continuously inhaled mixed gas, The secondary intake pipe 100 and the fixed pipe 110 is installed in any one or more of the air intake pipe and the throttle body, the connection of the throttle body and the surge tank and the connection of the intake manifold and the internal combustion engine, The fixed tube 110 is installed inside the fixed tube 110 to minimize the backflow gas from the fixed tube flow port 112 collides with the intake, and the fixed tube wing 140 to quickly and smoothly introduce the intake by increasing the intake rate of the intake More equipped, The fixed tube wing 140, A plurality of wings installed at regular intervals along the inner circumferential surface of the fixed tube 110 between the plurality of fixed tube flow holes 112; And Intake pressure removing backflow prevention device for an internal combustion engine comprising a conical wing body located in the center of the fixed tube 110 which the plurality of wings are in contact with each other. The method of claim 1, The other end of the fixed tube is provided with an internal communication having a honeycomb (honeycomb) structure further characterized in that the intake pressure removal backflow prevention device for the internal combustion engine. delete delete The method of claim 1, The blade is formed to be bent at a predetermined inclination with respect to the inflow direction, the intake pressure removal backflow prevention device for an internal combustion engine. The method of claim 1, At the other end of the fixed tube 110, the wing communication (150) having a honeycomb (honeycomb) structure is further provided, characterized in that the intake pressure removal backflow prevention device for an internal combustion engine. The method of claim 1, It is installed inside the fixed tube 110, bent inclined toward the center to reduce the cross-sectional area toward the inflow direction of the intake to increase the speed of the intake, between the fixed tube flow port 112 and the inner peripheral surface of the fixed tube 110 Intake pressure removing backflow prevention device for an internal combustion engine, characterized in that the fixed tube wing (140 ") is further provided to form a second backflow passage communicating. The method of claim 7, wherein Intake pressure removing backflow prevention device for an internal combustion engine, characterized in that the wing communication having a honeycomb (honeycomb) structure is further provided inside the end of the intake inlet direction of the fixed tube blade.

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