KR102483934B1 - Accelerating apparatus for exhaust gas of vehicle - Google Patents

Abstract

The present invention relates to an exhaust accelerator for a vehicle installed in an exhaust pipe for discharging exhaust gas of a vehicle and accelerating and discharging exhaust gas while supplying external air to the exhaust pipe, one end of which is connected to the exhaust pipe, and is directed to the outside of the exhaust pipe. a connecting pipe having the other end extended in the moving direction of the vehicle and supplying external air to the exhaust pipe; and a flow rate increasing unit installed at the other end of the connection pipe to allow outside air to flow into the connection pipe and to increase the flow rate of the incoming outside air.

Description

Vehicle exhaust accelerator {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 to increase an exhaust speed of an exhaust gas through air pressure of the external air.

A vehicle using an internal combustion engine obtains power through four strokes of intake, compression, explosion, and exhaust.

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

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

Specifically, in the exhaust manifold in the process of discharging from the cylinder of the internal combustion engine to the exhaust pipe of the silencer, the so-called valve overlap occurs when the intake valve and the exhaust valve are simultaneously opened instantaneously during the 4th stroke of the internal combustion engine. there is.

During this process, a phenomenon in which the exhausted gas is introduced into the cylinder again causes a vacuum state to be instantaneously formed in the exhaust manifold, thereby forming a primary exhaust pressure that hinders exhaust gas discharge.

In the three-dimensional catalytic device, which is an air purifier, the discharged gas passes through the fine ventilation holes of the exhaust gas purifier, and the flow rate of the exhaust gas is significantly reduced, so that secondary exhaust pressure is formed.

Subsequently, when the exhausted gas flows into the muffler, a tertiary exhaust pressure is formed when the sound is absorbed while going around the partition partitioned in multiple stages.

In this way, the exhaust gas of the internal combustion engine is not smoothly discharged due to the above-mentioned factors, and there is a disadvantage in that approximately 5 to 10% of the output is reduced.

Therefore, it is possible to improve the output of the internal combustion engine and improve fuel efficiency by promoting smooth discharge of exhaust gas, and to reduce the accumulation of combustion residues such as carbon by dramatically reducing the reverse flow of exhaust gas, thereby extending engine life and eliminating expensive exhaust fumes. It is necessary to develop an accelerator capable of increasing durability by maintaining and managing a number of parts of an exhaust system, such as a device, cleanly.

As a prior art related to the present invention, there is Korean Patent Publication No. 10-2021-0019208, and in the prior art, a technology related to an exhaust pipe structure for accelerated exhaust gas discharge of a vehicle is disclosed.

Specifically, the prior art is configured to increase the flow rate through a cone-shaped insertion body inserted into the exhaust pipe.

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

Therefore, there is a need to improve 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 to provide an exhaust accelerator for vehicles capable of increasing the exhaust speed of exhaust gas through the air pressure of the external air by supplying external air to the exhaust pipe. that's the purpose

Specifically, an object of the present invention is 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 pressure generated during driving of the vehicle.

In addition, an 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 in an increased flow rate state.

In addition, an 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 causing a vortex.

Technical problems that can be obtained from the disclosed embodiments are not limited to the above-mentioned purposes, and other technical problems that are not mentioned are those skilled in the art to which the embodiments disclosed from the description below belong. will be clearly understandable.

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. a connection pipe having one end connected thereto and extending the other end to the outside of the exhaust pipe in the driving direction of the vehicle and introducing outside air into the other end to supply the exhaust pipe; And a flow rate increasing unit installed at the other end of the connection pipe to introduce outside air into the connection pipe and increasing the flow rate of the incoming outside air, wherein the flow rate increase unit is installed at the other end of the connection pipe, a main venturi pipe which is formed so that the cross-sectional area of the passage gradually narrows and supplies external air to the connection pipe; And it is installed in a state of being inserted into the front end of the main venturi pipe to guide external air to the rear end of the main venturi pipe, and the cross-sectional area of the passage is formed so that it gradually narrows while forming a slope different from that of the main venturi pipe. It may include a narrowing venturi guide tube.

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In addition, the main venturi tube may have a rectangular cross section, and a plurality of venturi guide tubes may be configured to divide the flow path of the main venturi tube into a plurality of parts.

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

In addition, the connection pipe extends 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 among the sections constituting the exhaust pipe, and the flow rate increasing part is installed, extending downward while forming a slope toward the ground Supporting the flow rate increasing portion in an inclined state, it may be formed to have a narrower flow path than the flow rate increasing portion.

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

In addition, in the present invention, since the cross-sectional area of the passage becomes gradually narrower while the main venturi pipe constituting the flow rate increasing unit supplies external air to the connecting pipe, the flow rate of external air can be increased and supplied.

In addition, in the present invention, since the venturi guide pipe constituting the flow rate increasing part divides the flow path of the main venturi pipe and narrows while forming a slope different from the slope of the main venturi pipe, the flow rate of external air can be supplied while further increasing, Since guide wings are installed along the circumference of the venturi guide pipe, external air can be supplied to the exhaust pipe while creating a vortex.

In addition, in the present invention, since the connecting pipe and the flow rate increasing part extend downwardly toward the ground, external air can be smoothly introduced into the exhaust pipe while the vehicle is traveling.

The effects of the present invention are not limited to the effects mentioned above, 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 showing an exhaust accelerator for a vehicle according to an embodiment of the present invention.
2 is a longitudinal cross-sectional view showing 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 this specification will be described in detail with reference to the accompanying drawings, but the same or similar elements are given the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "unit" for components used in the following description are given or used together in consideration of ease of writing the specification, and do not have meanings or roles that are distinct from each other by themselves.

In addition, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiment disclosed in this 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, the technical idea disclosed in this specification is not limited by the accompanying drawings, and all changes included in the spirit and technical scope of the present invention , it should be understood to include equivalents or substitutes.

In addition, terms including ordinal numbers, such as first and second, may be used to describe various components, but the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

In this description, singular expressions include plural expressions unless the context clearly dictates otherwise, and terms such as “comprise” or “having” refer to features, numbers, steps, operations, components, and parts described in the specification. Or, it is intended to indicate that a combination thereof exists, but it should be understood that the possibility of existence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof is not precluded.

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. It is an enlarged perspective view of the exhaust accelerator. 4 is a front view illustrating a vehicle exhaust accelerator according to an exemplary embodiment.

A vehicle exhaust accelerator 10 according to an embodiment is a device for accelerating and discharging exhaust gas of a vehicle, and more specifically, as shown in FIG. 1, an exhaust pipe 1 for discharging vehicle exhaust gas It is installed to supply external air to the exhaust pipe 1, thereby accelerating and discharging the exhaust gas through the pressure of the external air.

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

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

The connection pipe 100 is a component that supplies 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 a pipe shape, one end is connected to the exhaust pipe 1 and the other end extends to the outside of the exhaust pipe 1, and the flow rate increasing unit 200 is installed so that external air can be introduced.

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

Accordingly, the connection pipe 100 extends in a direction opposite to the air flow generated during driving of the vehicle, so that external air can be smoothly introduced and supplied 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, as described below. The flow rate increasing unit 200 may be installed, and may be extended while forming a downward slope toward the ground to support the flow rate increasing unit 200 in an inclined state.

Accordingly, since the connection pipe 100 and the flow rate increasing unit 200 extend downward toward the ground, external air introduced during driving 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 with a narrower cross-sectional area than the flow path of the flow rate increasing unit 200, so that external air introduced into the flow rate increasing unit 200 through the flow path having a narrower cross-sectional area While increasing the speed of can be supplied to the exhaust pipe (1).

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

Accordingly, the connection pipe 100 can increase the exhaust speed of the exhaust gas by supplying the external air introduced into the flow rate increasing unit 200 to the center of the exhaust pipe 1 and to 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 outside air into the connection pipe 100.

Specifically, the flow rate increasing unit 200 may 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 increasing the flow rate of external air and supplying it to the connection pipe 100 while forming an inlet through which external air flows.

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 passage gradually narrows, so that outside air can be introduced while the vehicle is traveling.

Accordingly, the outside air can be supplied to the connecting pipe 100 and the exhaust pipe 1 with an increased flow rate through Bernoulli's principle while moving through a passage whose cross-sectional area gradually narrows.

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

As shown in FIGS. 2 and 3, the venturi guide pipe 200 is installed while being inserted into the front end of the main venturi pipe 210 to guide external air to the rear end of the main venturi pipe 210. is a component

Since the venturi guide tube 200 is formed in a tubular shape and configured in plurality, the passage inlet of the main venturi tube 210 may be divided into a plurality.

Here, as shown in FIG. 2 , the venturi guide pipe 220 is formed such that the cross-sectional area of the flow path gradually narrows, so that the flow rate of external air flowing into the main venturi pipe 210 can be increased.

In particular, the venturi guide pipe 220 may be formed so that the cross-sectional area of the passage becomes narrow while forming a slope different from that of the main venturi pipe 210.

That is, the venturi guide pipe 220 is formed so that the flow path narrows at a greater inclination than the slope at which the flow path of the main venturi tube 210 narrows, thereby increasing the flow rate of external air flowing into the main venturi tube 210. there is.

Meanwhile, guide wings 230 may be installed in the venturi guide tube 220 as shown in FIGS. 3 and 4 .

Specifically, the guide blades 230 pass through the venturi guide tube 220 by being attached along the inner circumference of the venturi guide tube 220 and extending in the longitudinal direction of the flow path of the venturi guide tube 220 while forming a plurality. air can be guided.

The guide blades 230 may extend in a straight line while extending in the longitudinal direction of the flow path of the venturi guide tube 220, or may extend in a spiral shape unlike shown.

Here, when the guide blades 230 are spirally extended, external air introduced into the venturi guide tube 220 may be supplied to the main venturi tube 210 while generating a vortex by rotating the outside air.

Accordingly, the outside air can be supplied to the main venturi pipe 210 while causing a vortex through the guide blades 230, and the flow rate in the process of passing through the main venturi pipe 210 and the connection pipe 100 is By being supplied to the exhaust pipe 1 while increasing, the exhaust of the exhaust gas can be accelerated.

As described above, in the vehicle exhaust accelerator 10 according to an embodiment of the present invention, the connection pipe 100 connected to the exhaust pipe 1 and the inlet of the flow rate increasing unit 200 are Since the outside air is introduced into the exhaust pipe 1 through the pressure generated during the vehicle driving process by extending in the driving direction of the vehicle, the exhaust gas can be exhausted together with the outside air while increasing the flow rate.

The above-described embodiments are for illustrative purposes, and those skilled in the art to which the above-described embodiments belong can easily transform into other specific forms without changing the technical spirit 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 similarly, components described as distributed may be implemented in a combined form.

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

10: vehicle exhaust accelerator
100: connector
200: flow rate increasing unit
210: Main venturi tube
220: Venturi guide tube
230: guide wing
1 : exhaust pipe
2 : Silencer

Claims (5)

An exhaust accelerator for a vehicle installed in an exhaust pipe for discharging exhaust gas of a vehicle and accelerating and discharging exhaust gas,
A connection pipe having one end connected to the exhaust pipe and extending the other end to the outside of the exhaust pipe in a driving direction of the vehicle to introduce outside air into the other end and supply the exhaust pipe to the exhaust pipe; and
A flow rate increasing unit installed at the other end of the connection pipe to allow outside air to flow into the connection pipe and to increase the flow rate of the incoming outside air;
The flow rate increasing unit,
a main venturi pipe installed at the other end of the connection pipe and formed such that the cross-sectional area of the flow path gradually narrows to supply external air to the connection pipe; and
It is installed in a state of being inserted into the front end of the main venturi pipe to guide external air to the rear end of the main venturi pipe, and the cross-sectional area of the passage is formed so that it gradually narrows while forming a slope different from that of the main venturi pipe. An exhaust accelerator for a vehicle including a venturi guide tube.
delete According to claim 1,
The main venturi pipe,
The cross section of the passage is formed in a rectangular shape,
The venturi guide tube,
Exhaust accelerator for a vehicle, which is composed of a plurality and divides the flow path of the main venturi tube into a plurality.
According to claim 1,
The flow rate increasing unit,
Exhaust accelerator for a vehicle further comprising a plurality of guide blades attached along the inner circumference of the venturi guide tube and extending in the longitudinal direction of the flow path.
According to claim 1,
The connector is
Among the sections constituting the exhaust pipe, the flow rate increasing part is installed 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 extending while forming a downward slope toward the ground to make the flow rate increasing part inclined A vehicle exhaust accelerator that supports and has a flow path narrower than the flow rate increasing portion.

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