KR20220106655A - Accelerating apparatus for exhaust gas of vehicle - Google Patents

Abstract

The present invention relates to an exhaust accelerating apparatus for a vehicle, installed in an exhaust pipe discharging an exhaust gas of a vehicle and accelerating and discharging the exhaust gas while supplying an external air to an exhaust pipe. The exhaust accelerating apparatus for the vehicle of the present invention comprises: a connection pipe wherein one end part is connected to the exhaust pipe and the other end part is extended toward the outside of the exhaust pipe, and which is extended in the moving direction of the vehicle and supplying the external air to the exhaust pipe; and a flow rate increasing unit installed at the other end part of the connection pipe, allowing the external air to flow into the connection pipe, and increasing a flow rate of the incoming external air.

Description

ACCELERATING APPARATUS FOR EXHAUST GAS OF VEHICLE

The present invention relates to an exhaust accelerator for a vehicle, and more particularly, to an exhaust accelerator for a vehicle capable of supplying external air to an exhaust pipe and increasing the exhaust speed of exhaust gas through the air pressure of the external air.

A vehicle using an internal combustion engine is powered by four strokes: intake, compression, explosion, and exhaust.

Looking at the air flow of intake and exhaust during the stroke of an internal combustion engine, when passing through an air cleaner, a throttle valve, etc. in the intake process, air is introduced without a relatively large resistance.

However, in the exhaust process, it is exhausted to the exhaust pipe through an exhaust manifold, an air purifier using a catalyst, and a silencer, so that a significant resistance to the exhaust flow is generated.

Specifically, in the process of exhausting from the cylinder of the internal combustion engine to the exhaust pipe of the silencer, in the exhaust manifold, the so-called valve overlap occurs in which the intake valve and the exhaust valve are momentarily opened simultaneously during the four strokes of the internal combustion engine. have.

During this process, a phenomenon in which the exhausted gas flows back into the cylinder occurs, and a vacuum is instantaneously formed in the exhaust manifold, thereby creating a primary exhaust pressure that prevents exhaust gas emission.

In addition, in the three-dimensional catalyst device, which is an air purifier, the flow velocity of the exhaust gas is remarkably reduced as the exhaust gas passes through the fine vent holes of the exhaust gas purifier, thereby forming a secondary exhaust pressure.

Then, when the exhausted gas flows into the silencer, the tertiary exhaust pressure is formed when the sound is absorbed by going around the multi-stage partition.

As described above, the exhaust gas of the internal combustion engine is not smoothly discharged due to the above-described factors, and approximately 5 to 10% of the output is reduced.

Therefore, it is possible to improve the output of the internal combustion engine by promoting the smooth discharge of exhaust gas, to improve fuel efficiency, and to reduce the accumulation of combustion residues such as carbon by dramatically reducing the backflow of exhaust gas to extend the engine life and to purify expensive exhaust gas. There is a need to develop an accelerator capable of increasing the durability by maintaining a clean maintenance of many parts of the exhaust system, such as a device.

As a prior art related to the present invention, there is Republic of Korea Patent Publication No. 10-2021-0019208, the prior document discloses a technology related to an exhaust pipe structure for accelerating exhaust gas of a vehicle.

Specifically, the prior art is a configuration for increasing the flow rate through the cone-shaped insertion body inserted into the interior of the exhaust pipe.

However, the prior art as described above has a limit in accelerating the exhaust speed of the exhaust gas by using only the exhaust pressure of the exhaust gas itself.

Accordingly, there is a demand for improvement of the problems of the prior art as described above.

Republic of Korea Patent Publication No. 10-2021-0019208

The present invention was created to improve the problems of the prior art as described above, and it is to provide an exhaust accelerator for a vehicle capable of supplying external air to an exhaust pipe and increasing the exhaust speed of exhaust gas through the air pressure of the external air. That's the purpose.

Specifically, it is an object of the present invention to provide an exhaust accelerator for a vehicle that allows external air to be accelerated while being exhausted together with exhaust gas by introducing external air into an exhaust pipe through a pressure generated during the driving process of the vehicle.

Another object of the present invention is to provide an exhaust accelerator for a vehicle in which external air can be introduced into an exhaust pipe with an increased flow rate.

Another object of the present invention is to provide an exhaust accelerator for a vehicle in which external air is introduced into an exhaust pipe while generating a vortex.

Technical problems obtainable in the disclosed embodiments are not limited to the above-mentioned purposes, and other technical problems not mentioned are those of ordinary skill in the art to which the embodiments disclosed from the description below belong. can be clearly understood by

An exhaust accelerator for a vehicle according to an embodiment of the present invention for achieving the above object is an exhaust accelerator for a vehicle installed in an exhaust pipe for discharging exhaust gas of a vehicle and accelerating and discharging the exhaust gas, wherein the exhaust pipe a connection pipe having one end connected and the other end extending to the outside of the exhaust pipe and extending in the driving direction of the vehicle to introduce outside air to the other end and supply the exhaust pipe; and a flow rate increasing part installed at the other end of the connecting pipe to introduce outside air into the connecting pipe, and increasing the flow rate of the incoming outside air.

In addition, the flow rate increasing part, the main venturi pipe is installed at the other end of the connection pipe, the cross-sectional area of the flow path is formed to gradually narrow to supply external air to the connection pipe; And it is installed in a state inserted into the front end of the main venturi tube to guide the outside air to the rear end of the main venturi tube, is formed so that the cross-sectional area of the flow path gradually becomes narrower while forming a different inclination from the inclination of the main venturi tube It may include a narrowing venturi guide tube.

In addition, the main venturi pipe, the cross-section of the flow path is formed in a rectangular shape, the venturi guide pipe may be configured in plurality to divide the flow path of the main venturi pipe into a plurality.

In addition, the flow rate increasing unit, attached along the inner circumference of the venturi guide tube may further include a plurality of guide blades extending in the longitudinal direction of the flow path.

In addition, the connection pipe is connected to the lower part of the horizontal portion extending in a horizontal state among the sections constituting the exhaust pipe and extends in the opposite direction of the exhaust pipe to install the flow rate increasing part, and is extended while forming a downward inclination toward the ground. The flow rate increasing unit may be supported in an inclined state, and may be formed to have a narrower flow path than the flow rate increasing unit flow path.

According to the exhaust accelerator for a vehicle according to an embodiment of the present invention, the connection pipe connected to the exhaust pipe and the inlet of the flow velocity increasing part extend in the driving direction of the vehicle, so that external air flows into the exhaust pipe through the pressure generated during the driving process of the vehicle. Therefore, as the exhaust gas is exhausted together with the outside air, it can be exhausted while the flow rate increases.

In addition, in the present invention, since the cross-sectional area of the flow path is gradually narrowed while the main venturi pipe constituting the flow rate increasing unit supplies external air to the connecting pipe, it is possible to supply the external air by increasing the flow rate.

In addition, in the present invention, since the venturi guide pipe constituting the flow rate increasing part narrows while dividing the flow path of the main venturi pipe to form an inclination different from the inclination of the main venturi pipe, the flow rate of external air can be supplied while further increasing, Since guide blades are installed along the circumference of the venturi guide pipe, external air can be supplied to the exhaust pipe while generating a vortex.

In addition, according to the present invention, since the connecting pipe and the flow velocity increasing part extend while forming a downward inclination toward the ground, external air can be smoothly introduced into the exhaust pipe while rising during the driving process of the vehicle.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view illustrating an exhaust accelerator for a vehicle according to an embodiment of the present invention.
2 is a longitudinal cross-sectional view illustrating an exhaust accelerator for a vehicle according to an embodiment of the present invention.
3 is an enlarged perspective view of an exhaust accelerator for a vehicle according to an exemplary embodiment;
4 is a front view illustrating an exhaust accelerator for a vehicle according to an exemplary embodiment.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "part" for components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have distinct meanings or roles by themselves.

In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Also, terms including an ordinal number such as first, second, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

In this description, the singular expression includes the plural expression unless the context clearly dictates otherwise, and the term "comprises" or "has" refers to a feature, number, step, operation, component, part described in the specification. or a combination thereof, but it is to be understood that this does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof.

1 is a perspective view showing an exhaust accelerator for a vehicle according to an embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view showing an exhaust accelerator for a vehicle according to an embodiment of the present invention, and FIG. 3 is a vehicle for a vehicle according to an embodiment It is an enlarged perspective view showing the exhaust accelerator. Also, FIG. 4 is a front view illustrating an exhaust accelerator for a vehicle according to an exemplary embodiment.

The exhaust accelerator 10 for a vehicle according to an embodiment is a device for accelerating and discharging exhaust gas of a vehicle. More specifically, as shown in FIG. It is a device for accelerating and discharging exhaust gas through the pressure of external air by supplying external air to the exhaust pipe (1).

Here, the exhaust pipe 1 in which the exhaust accelerator 10 for a vehicle according to the present invention is installed may be an exhaust line configured together with the silencer 2 as shown in FIG. 1 , and as shown in FIG. It may be an omitted exhaust line or an exhaust line consisting of only the silencer 2 .

Specifically, the exhaust accelerator 10 for a vehicle according to an embodiment may be configured to include a connection pipe 100 and a flow velocity increasing unit 200 as shown in FIG. 1 .

The connection pipe 100 is a component for supplying external air introduced through the flow rate increasing unit 200 to the exhaust pipe 1 while connecting the flow rate increasing unit 200 and the exhaust pipe 1 to be described later.

This connection pipe 100 is formed in the form of a pipe, one end is connected to the exhaust pipe 1, and the other end is extended to the outside of the exhaust pipe 1, and the flow rate increasing part 200 is installed so that external air can be introduced.

Here, as shown in FIG. 2 , the other end of the connection pipe 100 may extend in the driving direction of the vehicle, that is, in a direction opposite to the exhaust pipe 1 .

Accordingly, the connection pipe 100 extends in a direction opposite to the air flow generated in the driving process of the vehicle, thereby smoothly introducing external air and supplying it to the exhaust pipe 1 .

Specifically, as shown in FIG. 2 , the connection pipe 100 extends in the opposite direction of the exhaust pipe 1 with one end connected to the lower part of the horizontal part extending in a horizontal state among the sections constituting the exhaust pipe 1 , and will be described later. The flow rate increasing unit 200 may be installed, and by extending while forming a downward inclination toward the ground, it is possible to support the flow rate increasing unit 200 in an inclined state.

Accordingly, since the connecting pipe 100 and the flow velocity increasing part 200 extend while forming a downward inclination toward the ground, the external air introduced in the driving process of the vehicle can be smoothly introduced while rising along the slope.

In addition, as shown in FIG. 2 , the connection pipe 100 is formed to have a flow path having a narrower cross-sectional area than the flow path of the flow rate increasing unit 200 , and thus external air introduced into the flow rate increasing unit 200 through a narrowed cross-sectional area flow path. It can be supplied to the exhaust pipe (1) while increasing the speed of.

In addition, the connection pipe 100 may be connected with one end passing through the exhaust pipe 1 as shown in FIG. 2 , and extending toward the end of the exhaust pipe 1 with one end passing through the exhaust pipe 1 . It may be disposed in the center of the exhaust pipe (1) while being.

Accordingly, the connection pipe 100 may increase the exhaust speed of the exhaust gas by supplying the external air introduced into the flow velocity increasing part 200 to the center of the exhaust pipe 1 in the exhaust direction of the exhaust gas.

The flow rate increasing unit 200 is a component installed at the other end of the above-described connection pipe 100 to increase the flow rate of the incoming outside air while introducing the outside air into the connection pipe 100 .

Specifically, the flow rate increasing unit 200 may be configured to include a main venturi tube 210 and a venturi guide tube 220 as shown in FIGS. 3 and 4 .

The main venturi pipe 210 is a component for supplying the external air to the connecting pipe 100 by increasing the flow rate of the external air while forming an inlet through which the external air is introduced.

Specifically, the main venturi pipe 210 is installed at the other end of the connection pipe 100 and is formed in a funnel shape in which the cross-sectional area of the flow path is gradually narrowed, so that external air can be introduced in the driving process of the vehicle.

Accordingly, the external air may be supplied to the connection pipe 100 and the exhaust pipe 1 in a state in which the flow velocity is increased through the Bernoulli's principle while moving through the flow path having a gradually narrower cross-sectional area.

Here, the main venturi pipe 210 may have a cross-section of a flow path formed in a long direction, and a plurality of long flow paths may be divided by a venturi guide pipe 220 to be described later.

The venturi guide tube 200 is installed in a state inserted into the front end of the main venturi tube 210 as shown in FIGS. 2 and 3 to guide the outside air to the rear end of the main venturi tube 210 . is a component

The venturi guide tube 200 may be formed in a tube shape and configured in plurality, thereby dividing the flow path inlet of the main venturi tube 210 into a plurality.

Here, the venturi guide pipe 220 may increase the flow rate of external air flowing into the main venturi pipe 210 by being formed so that the cross-sectional area of the flow path becomes narrower as shown in FIG. 2 .

In particular, the venturi guide pipe 220 may be formed so that the cross-sectional area of the flow path narrows while forming a different inclination from the inclination of the main venturi pipe 210 .

That is, the venturi guide pipe 220 is formed such that the flow path is narrowed at a larger inclination than the narrow slope of the flow path of the main venturi pipe 210 , thereby increasing the flow rate of external air flowing into the main venturi pipe 210 . have.

On the other hand, the venturi guide tube 220, as shown in Figures 3 and 4, the guide blade 230 may be installed.

Specifically, the guide wings 230 are attached along the inner circumference of the venturi guide tube 220 while forming a plurality and extend in the longitudinal direction of the flow path of the venturi guide tube 220 to pass through the venturi guide tube 220 . can guide the air.

These guide wings 230 may extend in a straight line while extending in the longitudinal direction of the flow path of the venturi guide tube 220, and may extend spirally as shown.

Here, when the guide wing 230 extends spirally, the external air introduced into the venturi guide pipe 220 may be rotated to generate a vortex and supplied to the main venturi pipe 210 .

Accordingly, the outside air may be supplied to the main venturi pipe 210 while generating a vortex through the guide vanes 230 , and the flow rate in the process of passing through the main venturi pipe 210 and the connection pipe 100 is reduced. By being supplied to the exhaust pipe 1 while increasing, it is possible to accelerate the exhaust of the exhaust gas.

As described above, in the exhaust accelerator 10 for a vehicle according to an embodiment according to an embodiment of the present invention, the inlet of the connection pipe 100 connected to the exhaust pipe 1 and the flow rate increasing unit 200 is It extends in the driving direction of the vehicle and external air flows into the exhaust pipe 1 through the pressure generated in the driving process of the vehicle, so that the exhaust gas may be exhausted with an increase in flow rate while being exhausted together with the external air.

The above-described embodiments are for illustration, and those of ordinary skill in the art to which the above-described embodiments pertain can easily transform into other specific forms without changing the technical idea or essential features of the above-described embodiments. You will understand. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and likewise components described as distributed may also be implemented in a combined form.

The scope to be protected through this specification is indicated by the claims described below rather than the above detailed description, and should be construed to include all changes or modifications derived from the meaning and scope of the claims and their equivalents. .

10: vehicle exhaust accelerator
100: connector
200: flow rate increase part
210: Main Venturi Hall
220: Venturi guide tube
230: guide wings
1: exhaust pipe
2: silencer

Claims (5)

In the exhaust accelerator device for a vehicle installed in an exhaust pipe for discharging exhaust gas of the vehicle to accelerate and discharge the exhaust gas,
a connecting pipe having one end connected to the exhaust pipe, the other end extending to the outside of the exhaust pipe, extending in the driving direction of the vehicle, introducing external air to the other end and supplying the external air to the exhaust pipe; and
and a flow rate increasing unit installed at the other end of the connecting pipe to introduce outside air into the connecting pipe, and increasing the flow rate of the incoming outside air.
The method of claim 1,
The flow rate increasing unit,
a main venturi pipe installed at the other end of the connection pipe and formed to have a narrow cross-sectional area of the flow path to supply external air to the connection pipe; and
It is installed in a state inserted into the front end of the main venturi tube to guide outside air to the rear end of the main venturi tube, and is formed so that the cross-sectional area of the flow path becomes gradually narrower while forming an inclination different from the inclination of the main venturi tube. An exhaust accelerator for a vehicle including a venturi guide tube.
3. The method of claim 2,
The main venturi tube,
A cross section of the flow path is formed in a rectangular shape,
The venturi guide tube,
An exhaust accelerator for a vehicle that is composed of a plurality and divides the flow path of the main venturi pipe into a plurality.
3. The method of claim 2,
The flow rate increasing unit,
The exhaust accelerator for a vehicle further comprising a plurality of guide blades attached along the inner circumference of the venturi guide pipe and extending in the longitudinal direction of the flow path.
The method of claim 1,
The connector is
Among the sections constituting the exhaust pipe, the flow rate increasing part is installed while extending in the opposite direction of the exhaust pipe in a state connected to the lower part of the horizontal part extending in a horizontal state. and having a flow path narrower than the flow path of the flow velocity increasing part, the exhaust accelerator for a vehicle.

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