CN202012390U - Vortex Exhaust - Google Patents

Abstract

The utility model relates to a vortex exhaust device, which is characterized in that an outer pipe with a plurality of perforations on the circumferential wall is arranged in the inner space of a shell with air inlets and air outlets at two ends respectively, an inner pipe with a contraction section at two ends is arranged in the outer pipe, the contraction section of the inner pipe is provided with a plurality of holes, a vortex assembly is additionally and fixedly arranged in an inner chamber of the inner pipe, the vortex assembly is composed of a shaft pipe and a plurality of vortex blades fixedly arranged on the outer surface of the shaft pipe, and in addition, an acoustic absorption filter layer is arranged between the inner wall surface of the shell and the outer wall surface of the outer pipe; therefore, when the waste gas passes through the inner pipe, the noise is reduced, chemical substances contained in the waste gas are absorbed and filtered by the sound absorption filter layer, the phenomenon of insufficient back pressure can be avoided, the discharge speed and the flow of the waste gas can be accelerated, and the performance of the automobile is improved.

Description

Vortex Exhaust

technical field

The utility model relates to a vortex exhaust device, especially applicable to the rear of the catalytic converter of the exhaust gas exhaust device of automobiles and locomotives, and can replace the resonator, which simultaneously enhances the exhaust gas exhaust speed in the process of silencing the sound , has the effect of environmental protection.

Background technique

The exhaust gas emission device of traditional steam and locomotive is that it connects the manifold of exhaust from the exhaust valve of the engine, and the manifold is connected with catalytic converter, resonator and muffler in sequence. Among them, after the exhaust gas passes through the catalytic converter, the exhaust flow rate will be greatly reduced, and because of the fine mesh design inside the catalytic converter, it will generate a higher temperature for the second combustion of the unburned part of the oil and gas. It will produce fine carbon deposits. After long-term use, excessive carbon deposits will partially block the internal structure of the catalytic converter, which will increase the back pressure of the exhaust air flow, and the high temperature will flow back to the engine, shortening the life of the engine, and The horsepower is partially attenuated, and the content of carbon monoxide and hydrocarbons discharged from the car is increased, thereby polluting the environment and endangering human health. Therefore, the utility model aims at improving the deficiencies existing in the exhaust gas discharge devices of traditional automobiles and locomotives.

Utility model content

Based on the above, it can be seen that the technical problem to be solved by the present invention is to provide an effective technical structure for improving the defects of the exhaust gas discharge device in the prior art, which cause engine horsepower loss and environmental pollution due to imperfect design.

The technical solution adopted by the utility model to solve the technical problem is: a vortex exhaust device, including: a shell, an outer tube, an inner tube, a vortex assembly and a sound-absorbing filter layer. The opposite ends of the shell are the air inlet and the outlet respectively. The air port has an enlarged internal space between the air inlet and the air outlet; and the outer tube is connected to the inside of the shell, and the two ends of the outer tube have narrow through holes respectively, and the two ends The through holes are respectively connected to the air inlet and the air outlet of the shell, and the peripheral wall of the outer tube is provided with several perforations; the inner tube is connected to the inside of the outer tube, and the two ends of the inner tube are respectively inlets and the outlet, and the side ends of the inlet and the outlet each have a shrinking tube section, and between the two shrinking tube sections is an enlarged inner chamber, and the inlet and outlet at both ends of the inner tube are respectively connected to the air inlet of the shell and the air outlet, and the side walls of the two shrink tube sections are provided with several holes; and the vortex assembly includes a through shaft tube, and the outer surface of the shaft tube is connected with several spiral vortex blades, and the vortex blades The outer side of the inner tube is fixed on the inner wall of the inner chamber of the inner tube, and the shaft tube is located at the center of the inner tube, and the sound-absorbing filter layer is arranged between the inside of the shell and the outside of the outer tube . Accordingly, when the exhaust gas passes through the inner pipe, in addition to the sound-absorbing filter layer can reduce the noise to absorb and filter the chemical substances contained in the exhaust gas, it can also avoid the phenomenon of insufficient back pressure, accelerate the discharge speed and flow rate of the exhaust gas, and improve Motor vehicle performance.

Preferably, the outer tube is connected inside the inner space of the shell.

Preferably, the length of the shaft tube of the vortex assembly is shorter than the length of the inner chamber of the inner tube.

Preferably, the inlet end of the shaft tube has a flared portion.

Preferably, the vortex blades of the vortex assembly are provided with several through holes.

Therefore, the utility model provides a vortex exhaust device, which can be installed behind the catalytic converter, and can also replace the resonator part, which will reduce the excessive back pressure and temperature generated by the catalytic converter. The spiral airflow generated by this device will take it out, and can also take out the carbon deposits accumulated in the catalytic converter, so as to maintain the smooth exhaust of the catalytic converter, and at the same time make the exhaust of the vehicle smooth, so that it can be used at high speeds. The acceleration situation will not cause the vehicle to accelerate slowly and the speed will drop immediately after the accelerator is released due to the design of the exhaust structure of the catalytic converter.

Description of drawings

Fig. 1 is the three-dimensional structure cross-sectional reference drawing of the present utility model.

Fig. 2 is the planar structure section of the utility model and its implementation reference drawing.

Fig. 3 is a three-dimensional embodiment diagram of the eddy current assembly of the present invention.

(the utility model embodiment)

Detailed ways

As shown in Figure 1 and Figure 2, the vortex exhaust device provided by the utility model includes: a shell 1, an outer tube 2, an inner tube 3, a vortex assembly 4 and a sound-absorbing filter layer 5. in:

The casing 1 is formed by welding stainless steel plates, and its opposite ends have an air inlet 11 and an air outlet 12 respectively, and an enlarged inner space 13 is formed between the air inlet 11 and the air outlet 12 .

The outer tube 2 is formed from a stainless steel plate, and its two ends have narrowed through holes 21 respectively, and several perforations 22 are provided on its peripheral wall. The through holes 21 at both ends of the tube 2 are connected to the air inlet 11 and the air outlet 12 of the housing 1 .

The inner tube 3 is formed by a stainless steel plate, and its two ends have an inlet 31 and an outlet 32 respectively, and the side ends of the inlet 31 and the outlet 32 each have a shrinking section 33, and the side wall of the shrinking section 33 is provided with several holes 331, and in Between the two shrinkage sections 33 is an enlarged internal chamber 34, the inner tube 3 is arranged inside the above-mentioned outer tube 2, and the inlet 31 and the outlet 32 at both ends are respectively connected to the air inlet 11 and the air outlet of the housing 1 12.

The vortex assembly 4 includes a shaft tube 41 with a central hole 411 and several helical swirl blades 42 (as shown in Figure 3) on the outer surface of the shaft tube 41. The length of the shaft tube 41 is shorter than the shaft tube 41. The length of the internal chamber 34 of the inner tube 3 (as shown in Figure 2), and the inlet end of the shaft tube 41 has an outward expansion part 412, and the outer side of the swirl blade 42 is fixed in the inside of the inner tube 3 On the inner wall of the chamber 34 , the shaft tube 41 is located at the center of the inner tube 3 , and the swirl blade 42 is provided with a plurality of through holes 421 .

The sound-absorbing filter layer 5 can be selected from existing sound-absorbing filter materials, such as glass fiber cotton, which is arranged between the inside of the shell 1 and the outside of the outer tube 2 .

Composed of the above-mentioned components, it can be installed behind the catalytic converter of the exhaust gas emission device of automobiles and locomotives to replace the resonator for implementation. When the exhaust gas flows in from the air inlet 11 of the shell 1 (as shown in Figure 2), the exhaust gas is compressed for the first time by the action of the shrinkage section 33 of the inner tube 3, and then flows into the vortex assembly 4 at the rear, and because The vortex assembly 4 is located in the inner chamber 34, and the pipe diameter of the inner chamber 34 is larger than that of the shrinkage section 33, so that when the exhaust gas passes through the shrinkage section 33, the expansion can be enlarged by the Venturi principle. And the gas is spiraled through the vortex blades 42, and the shaft tube 41 of the vortex assembly 4 is hollow, so when the exhaust gas passes through the vortex blades 42 to generate a vortex-like flow, the central hole 411 will be in a vacuum state, the vacuum state generates suction to the catalytic converter in front, allowing the gas in front of the catalytic converter to accelerate through the catalytic converter by virtue of the suction, and the carbon deposits are brought out along the way, and at the same time, the excessive temperature can be slightly reduced Reduce, let the internal combustion engine (engine) maintain a stable temperature, then, do the second compression through the shrinkage section 33 and the air outlet 12 on the other side, and expand the gas again, and then the air flow flows into the muffler at the rear.

Simultaneously, when the exhaust gas reaches the air inlet 11 and the air outlet 12, since the side wall of the shrinkage section 33 of the inner tube 3 is provided with several holes 331, the exhaust gas will also flow into the outer tube 2 for convection, and The outer tube 2 is provided with several perforations 22, the high-temperature air flow will flow into the outer shell 1 and the outer tube 2, and there is a sound-absorbing filter layer in it, which has the effect of sound-absorbing and heat-insulating after absorbing heat and hardening, so as to reduce the sound. And absorb and filter toxic chemicals such as carbon monoxide and hydrocarbons contained in the exhaust gas.

According to the description of the above embodiments, the utility model can replace the function of the traditional resonator, not only has the effect of the resonator, but also the inner pipe 3 and the vortex blade 42 of the utility model will generate part of the back pressure, so that the vehicle will not be damaged Insufficient back pressure caused by rapid air flow (because if the back pressure is insufficient, the vehicle will be dragged heavily and weak when starting at low speed), and the utility model can improve this situation, and strengthen the smooth exhaust, Promoting the air-fuel mixing ratio to achieve complete combustion to achieve the highest thermal efficiency. At the same time, this effect can be achieved without removing the catalytic converter, and it can also take into account environmental protection, which cannot be achieved by many generations of catalytic converters.

To sum up, it should be known that the utility model does eliminate the above-mentioned deficiencies of the prior art, and has practicability, novelty and creativity, and meets the requirements of a utility model patent. However, what is described above is only a preferred embodiment of the present utility model, and is not intended to limit the implementation scope of the present utility model. That is, all equivalent changes and modifications made according to the claims of the utility model are covered by the patent scope of the utility model.

Claims (5)

1. an eddy current venting gas appliance is characterized in that, includes:

Shell, its opposite end is respectively suction port and air outlet, and has the inner space of expansion between this suction port and the air outlet;

Outer tube, it is arranged in the inside of this shell, and the two ends of this outer tube have the through hole that dwindles respectively, and the through hole at these two ends is connected to the suction port and the air outlet of this shell, and the perisporium of this outer tube is provided with several perforation again;

Interior pipe, it is arranged in the inside of this outer tube, the two ends of pipe are respectively import and outlet in being somebody's turn to do, the side of this import and this outlet respectively has draw section, and should interior pipe between this two draws section the internal capacity room that enlarges, should interiorly manage the import at two ends, suction port and the air outlet that outlet is connected to this shell in addition, the sidewall of this two draws section is provided with several holes again;

Eddy current assemblies has the central siphon of perforation, and the outer surface of this central siphon is equipped with several spiral volution blades, and the outer side of this volution blade is installed in the internal face of the internal capacity room of pipe in this, and makes this central siphon be positioned at the center of this pipe; And

The absorptive filter layer is located between the outside of the inside of this shell and this outer tube.

2. eddy current venting gas appliance as claimed in claim 1 is characterized in that, this outer tube is the inside that is arranged in the inner space of this shell.

3. eddy current venting gas appliance as claimed in claim 2 is characterized in that, the central siphon length of this eddy current assemblies is the length that is shorter than the internal capacity room of pipe in this.

4. eddy current venting gas appliance as claimed in claim 3 is characterized in that the inlet end of the central siphon of this eddy current assemblies has expanding part.

5. as claim 1,2,3 or 4 described eddy current venting gas appliance, it is characterized in that the volution blade of this eddy current assemblies is provided with several open-works.

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