KR200237021Y1 - Exhaust for automobile - Google Patents

Abstract

The present invention relates to an exhaust port for exhaust gas used in an internal combustion engine, and more specifically, to a tail pipe provided in an exhaust gas exhaust path of an automobile, to form an extension pipe for inducing air inflow according to the driving of an automobile and inducing the air flow therein. The present invention relates to a vehicle exhaust port which is useful for improving fuel efficiency and power by making it possible to quickly exhaust the exhaust gas flow at the tail pipe end.

The present invention collects the air flow according to the driving of the car in the tail pipe where the exhaust gas is discharged to be discharged together with the exhaust gas so that the exhaust gas of the engine can be quickly discharged, and the exhaust gas can be quickly discharged. By collecting the incoming air into the vortex to improve the exhaust gas flow quickly, the exhaust gas is discharged quickly to prevent the overlap of the exhaust gas flow back into the engine to increase the output, in addition to the tail pipe In order to provide an automobile exhaust port that can be mounted without changing the structure of the vehicle by attaching or simply welding, the wind is extended in the vehicle forward direction to allow the inflow of outside air into the tail pipe 20 at the rear of the silencer where the exhaust gas of the vehicle is discharged. Prepare the fallopian tube (1) to collect, and it collects by running and flows in Is the outside air characterized in that made fast to the exhaust it is mixed with the exhaust gas.

Description

Exhaust for automobile

The present invention relates to an exhaust port for exhaust gas used in an internal combustion engine, and more specifically, to a tail pipe provided in an exhaust gas exhaust path of an automobile, to form an extension pipe for inducing air inflow according to the driving of an automobile and inducing the air flow therein. The present invention relates to a vehicle exhaust port which is useful for improving fuel efficiency and power by making it possible to quickly exhaust the exhaust gas flow at the tail pipe end.

As is well known, in an automobile using an internal combustion engine, power is obtained by four strokes of suction, compression, explosion, and exhaust.

Looking at the flow of air (intake, exhaust) during the stroke of the engine, the intake process is made to flow without relatively large resistance when passing through the air cleaner throttle valve.

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

In the process of discharging from the cylinder of the engine to the tail pipe of the silencer, in the exhaust manifold, there is a time when a so-called valve overlap occurs in which the intake valve and the exhaust valve are instantaneously opened during the four strokes of the engine. As a phenomenon of re-introduction into the cylinder occurs, a vacuum is instantaneously formed in the exhaust manifold, thereby forming a primary exhaust pressure which prevents exhaust gas discharge.

In addition, in the three-dimensional catalytic device as an air purifier, the flow rate of the exhaust gas is significantly reduced while passing through the fine vents of the honeycomb type exhaust gas purifier, thereby forming a secondary exhaust pressure. The third exhaust pressure is formed when the blemish is turned.

Due to the resistance of the exhaust process, there is a closed end in which 20 to 25% of the output is reduced because the combustion gas of the engine cannot be smoothly discharged.

Therefore, it can be seen that it is possible to improve the output of the engine and improve fuel efficiency by simply discharging the exhaust gas smoothly.

Various proposals are known in the art in order to smoothly discharge the exhaust gas as described above.

Korean Patent Laid-Open Publication No. 2000-56951 proposes an exhaust pipe of a car using air flow, which combines a streamlined exhaust port body with a tail pipe by using the air flow according to the driving of the car to pass through the streamlined body. The low pressure zone is formed according to the flow rate and the exhaust gas is rapidly sucked by the low pressure to assist the exhaust.

However, there is a structurally enlarged and complicated disadvantage of attaching the streamlined exhaust body to a vehicle, and it is difficult to put practical use because the narrow exhaust passages only hinder the exhaust because it cannot induce rapid air flow at a stop or at low speed.

According to the tail pipe of the main silencer having the vortex generator of JP-A-1998-75223, the vortex vane is rotated by the exhaust gas in the middle of the tail pipe, and the vortex is generated by the exhaust gas and the vortex is generated and exhausted. However, this is rather difficult to use because it provides a resistance to disturb the flow of exhaust gas.

According to the exhaust gas discharge device using the vortex of the patent registration No. 257874, a separate pipe for introducing external air into the front of the silencer formed in the exhaust gas path is additionally formed, and the vane for forming the outside air into the vortex is built in the pipe. It is made by forming a damper for regulating the outside air inflow so as to synchronize with the opening of the throttle valve.

However, this is not similar to the present invention which will be described later in the comprehensive point of supplying the outside air to the exhaust gas path, but since the outside air is formed in the front of the silencer for removing the exhaust noise, the exhaust noise is the sub duct. Due to the leakage of air into the furnace, noise is severely generated, and since the damper for controlling the outside air that interworks with the throttle valve of the engine is constituted, the damage of the facility structure and the facility becomes complicated.

In addition, according to the automobile exhaust gas discharge device of Utility Model Registration No. 4888, the exhaust pipe is vortexed by providing a pipe that is bolted to the end of the tail pipe and radially forming a plurality of vortex forming wings on the inner circumference of the pipe. Although it has been proposed to improve the discharge efficiency, simply vortexing the exhaust gas is not enough to achieve rapid and smooth exhaust, and consequently, the amount of fluid vortex partially assists the exhaust in addition to the natural exhaust at the exhaust pressure. The effect is extremely low, just to get the effect.

The present invention aims to solve the problems with the prior art as described above and to provide an exhaust port for automobiles which can achieve exhaust gas emission of an engine quickly.

The present invention is to provide an exhaust port for a vehicle that can be exhausted with the exhaust gas by collecting the air flow according to the driving of the vehicle in the tail pipe discharged exhaust gas can be quickly discharged.

The present invention is to provide an exhaust port for automobiles to form a vortex of the air is collected from the outside to quickly improve the exhaust gas flow.

The present invention is to provide an exhaust port for a vehicle that can increase the output by preventing the exhaust gas is re-introduced to the engine while the exhaust gas is discharged quickly.

The present invention is to provide an exhaust port for the vehicle that can be attached to the tail pipe additionally or simply welded without changing the structure of the vehicle.

The present invention to achieve the above object is to provide a fallopian tube to collect the wind by expanding in the forward direction of the car so that the outside air can be introduced into the tail pipe of the rear end of the silencer exhausting the exhaust of the vehicle, and collected by running Mixing with the exhaust gas is made to achieve fast exhaust.

The outside air flowing into the exhaust gas is formed by forming a plurality of positions of the inlets differently from each other so as to form a vortex, or by twisting a plate to form a screw plate and being fixed in the exhaust port.

1 is a cross-sectional view as a basic embodiment of the present invention.

Figure 2 is a cross-sectional view as another embodiment of the present invention.

Fig. 3 is a configuration diagram as a modified embodiment of Fig. 2.

4 is a cross-sectional view of another modified embodiment of FIG.

Figure 5 is a perspective view of the main portion extract showing a modified embodiment of the fallopian tube of the present invention.

FIG. 6 is a configuration diagram illustrating a front state of FIG. 5. FIG.

** Description of symbols for the main parts of the drawing **

1: fallopian tube 3, 31: inlet hole

4 iron bar 6 fixing bolt

7: screw plate 8: pipe

9: support vane

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the technical configuration of the present invention.

1 is shown a basic embodiment of the present invention.

This is fitted to the tail pipe 20 formed in the tail pipe 20 formed at the rear end of the normal silencer 10 provided in the path of the exhaust gas discharged from the substrate of the vehicle by spot welding the spot tube 1, which is extended in the driving direction of the vehicle, and welded to the tail pipe. 20) punctures a lot of outside air inlets (3), but forms radially different positions of the inlet holes (3), respectively, and bends the iron pieces (4) of the inlet holes (3) inward into the tail pipe (20). The exhaust gas is made to form a vortex.

When the vehicle is driven by the above configuration, the air flow is collected through the fallopian tube 1 and the inflow is made, and the collected outside air is pushed into the inlet hole 3 which is opened while the air pressure reaches the narrow portion of the fallopian tube 1. It is mixed with the exhaust gas to increase the exhaust pressure.

At this time, the outside air inlet (3) formed in the tail pipe 20 is formed in a radially different position and bends the iron pieces (4) of the perforated inlet (3) inwardly to form a vortex according to the outside air inlet This naturally occurs and the vortex allows the exhaust gas to be discharged even faster.

Figure 2 is another embodiment of the present invention is made to be detachable to the tail pipe fallopian tube for inlet air.

This forms an extension tube 11 having a diameter larger than the diameter of the tail pipe 20 integrally to the rear end of the fallopian tube 1 for inflow of the outside air, and is fastened to the tail pipe 20 with a fixing bolt 6 to the tail pipe and It is made by forming an inlet hole 31 through which the outside air flows into the gap between the extension tubes.

According to another embodiment of the present invention, the exhaust pressure is increased by being mixed with the outside air which is rapidly introduced at the discharge end of the exhaust gas, and thus, it is possible to easily install the existing vehicle.

3 to 4 show a modified embodiment of another embodiment of FIG. 2, wherein the screw plate 7 is twisted as a metal plate inside the pipe body through which exhaust gas is discharged. It is made by being fixed by being embedded in the extension pipe 11 or embedded in the pipeline of the tail pipe 20.

The screw plate (7) has the advantage that the exhaust gas can be discharged quickly by vortex forming the exhaust gas to be discharged by vortex forming the exhaust gas through a narrow pipe.

On the other hand, the fallopian tube 1 of the present invention can be made as shown in Figs.

This is provided with a pipe (8) having an inner diameter that matches the outer diameter of the tail pipe (20) at the tip of the fallopian tube (1) expanded in the forward direction of the vehicle, and formed a plurality of radially inclined support vanes (9) connecting the pipe and the fallopian tube tip. It is done by.

The support vane 9 functions to form an vortex by rotating the outside air introduced thereto and is provided at the center to fix the tip of the pipe 8 and the fallopian tube 1 fitted to the tail pipe 20. (1) is to support the action without flow from the air pressure.

According to the present invention as described in detail above, a fallopian tube is installed to collect and flow the air stream passing rapidly according to the speed at which the vehicle runs, and the exhaust gas is discharged by mixing with the exhaust gas at a high flow rate of the introduced outside air. It has the effect of increasing the output of the engine quickly, thus improving the fuel economy, and the inflow and vortex mixing structure of the external air is extremely simple, so that it can be easily installed in the existing vehicle without additional design change. It is a very practical design with several effects.

Claims (5)

In a known exhaust port formed by forming an exhaust port for assisting the exhaust gas discharge in the tail pipe of the silencer rear end of the vehicle exhaust gas, It is provided by forming a fallopian tube that expands in the forward direction of the vehicle to collect the wind to allow the inflow of outside air into the tail pipe, and forms vortex generating means for mixing the outside air collected and collected in the run with the exhaust gas and forming the vortex as a vortex. Car exhaust port. The method of claim 1, wherein the exhaust port is coupled to the tail pipe 20 by spot welding the fitting of the fallopian tube (1) is expanded in the driving direction of the vehicle, Drill a plurality of outside air inlets (3) in the tail pipe (20) but form radially different positions of the inlet (3), respectively, and the iron pieces (4) of the perforated inlets (3) into the tail pipe (20). And an vortex generating means configured to be bent inwardly so that the exhaust gas forms a vortex. The exhaust pipe of claim 1, wherein the exhaust port integrally forms an extension tube 11 having a diameter larger than the diameter of the tail pipe 20 at the rear end of the fallopian tube 1 for inflowing outside air, and fixes the bolt 6 to the tail pipe 20. Exhaust holes for automobiles, characterized in that formed by the inlet hole 31 through which the outside air is introduced into the gap between the tail pipe and the extension pipe by tightening with). The method of claim 3, wherein the exhaust port is provided with a screw plate (7) formed by twisting as a metal sheet inside the pipe body through which exhaust gas is discharged; The screw plate (7) is built in the extension pipe (11) of the fallopian tube (1) is built in or fixed to the pipeline of the tail pipe (20) characterized in that the exhaust port for the automobile. The pipe 8 of any one of Claims 1-4 provided with the inner diameter which matches the outer diameter of the tail pipe 20 at the front-end | tip of the said fallopian tube 1, A vehicle exhaust port comprising a swirl generating means formed by forming a plurality of radially inclined support vanes (9) connecting a pipe (8) and a fallopian tube (1) to an end thereof.