TWM616047U - Structure of exhausting tail tube - Google Patents

Abstract

An exhaust tail pipe structure, comprising: a cylinder, a first pipe and a second pipe. Both ends of the cylinder are respectively formed with an intake end and an exhaust end, and the intake end passes through A first intake pipe is connected to the first pipe body, and then a second intake pipe is connected to the second pipe body. One end of the second intake pipe is bent and connected to the side of the first intake pipe to form a communication, In addition, the first intake pipe is connected between the second intake pipe and the first intake hole is provided with a valve device that can be adjusted and controlled, and the first pipe body and the second pipe body have pipe diameters. The difference is that the cut control through the valve device has two exhaust paths to match the exhaust volume generated by the engine at low and high speeds, so that the exhaust gas can be exhausted in an appropriate exhaust path. Therefore, the exhaust effect can be greatly improved.

Description

The structure of tailpipe

This creation is about an exhaust pipe, especially an exhaust tail pipe structure used with an exhaust valve.

According to the general condition, the exhaust pipe should generate proper exhaust back pressure when the engine of the general steam locomotive is running at low speed to increase the torque output of the engine, so that it can resist the flame when the exhaust valve is opened; When the engine is running at high speed, the exhaust pipe should increase the exhaust speed to improve the operating efficiency of the engine. Therefore, if the exhaust pipe is not designed properly, such as when the engine is running at low speed, the exhaust back pressure is too low, which will Causes the torque output to decline, and even causes the combustion flame to directly rush out of the exhaust valve, burning the exhaust valve; and if the engine is at a high speed, the exhaust pipe exhaust is not smooth enough and the speed is not fast enough, which will cause the engine to fail to burn The finished exhaust gas is smoothly removed, which affects the engine output; therefore, in order to match the exhaust volume produced by the engine at low and high speeds, the exhaust pipe should provide different exhaust back pressures according to different exhaust volumes. The effect is to meet the different needs of the large and small exhaust volume.

However, regardless of the above-mentioned exhaust pipe structure, it can only provide a single fixed exhaust path, so the back pressure effect is fixed, and it cannot provide different exhaust back pressure and speed according to different exhaust volumes. , So when it can produce high exhaust speed, relatively, its exhaust back pressure is relatively insufficient, which is only suitable for high engine speeds; and when it can produce high exhaust back pressure, it is relatively Because of its slow exhaust speed, it is only suitable for low engine speeds.

In view of this, the creator has been engaged in the manufacturing, development and design of related products for many years, and after detailed design and careful evaluation for the above goals, he finally got a practical creation.

The technical problem to be solved by this creation is to provide an exhaust tail pipe structure in response to the above-mentioned shortcomings existing in the prior art.

The structure of the above exhaust tail pipe includes: a cylinder, a first pipe and a second pipe. A first air inlet and a second air inlet. The first and second air inlets are respectively connected to a first air inlet pipe and a second air inlet pipe. The first air inlet pipe is directly connected to the first air inlet pipe. An air inlet, one end of the second air inlet pipe is connected to the second air inlet, and the other end of the second air inlet pipe is bent to connect the side of the first air inlet pipe to form communication, and the first air inlet The pipe is arranged at the junction of the second air inlet pipe and between the first air inlet hole with an adjustable control valve device. A sound-absorbing cotton is provided, the first pipe system is twisted and folded inside the cylinder, and one end of the first pipe body is connected with the first air inlet hole and the first air inlet pipe to form communication, and the first pipe The other end of the body is connected to the exhaust pipe, the second pipe body is also arranged in the cylinder in a tortuous way, the surface of the second pipe body is covered with a plurality of muffler holes, and one end of the second pipe body is The second air inlet hole is connected to the second air inlet pipe, and the other end of the second pipe body is connected to the end of the first pipe body and adjacent to the exhaust pipe, and inside the second pipe body The pipe diameter is smaller than the inner pipe diameter of the first pipe body.

Preferably, the first and second air inlet holes of the air inlet end are of the same height and parallel.

Preferably, the first pipe system is eccentrically accommodated in the cylinder body, and is arranged in a tortuous manner There is a first section, a second section and a third section. The front end of the first section is connected to the first intake pipe, and the first section is parallel to the second section. The third section is The end of the second section is bent downward to extend toward the center, and the end of the third section is connected to the exhaust pipe, and a connecting hole is provided on the side of the end of the third section.

Preferably, the second pipe system is eccentrically accommodated in the cylinder body, and is twisted to form a first section, a second section, and a third section. The front end of the first section is connected to the second air inlet pipe. , The second section is turning downward from the end of the first section to be directly below the first section, the third section is extending from the end of the second section upward and turning upward, and the third section of the second tube body Is higher than the third section of the first tube body, and then bends the end of the third section of the second tube body downward to connect the side of the end of the third section of the first tube body.

Comparing the effects of the prior art: The structure design of the tailpipe of the original creation is to have the first pipe body and the second pipe body have a difference in pipe diameter, and to have two exhaust paths through the cut control of the valve device. Cooperate with the exhaust volume produced by the engine in low and high speed conditions, so that the exhaust gas can be exhausted in an appropriate exhaust path to meet the different needs of large and small exhaust volumes, so it can greatly Improve the effect of exhaust.

Secondly, the exhaust gas is discharged through the long exhaust path of the second pipe body, which can effectively achieve the purpose of high back pressure output, and part of the exhaust gas is leaked out through the muffler hole of the second pipe body to disperse and reduce Exhaust pressure, at the same time, reduces the noise generated by the exhaust after absorbing the sound of the silencing cotton and damping, thereby reducing the noise and vibration caused by the high back pressure state.

Furthermore, through the design that the inner diameter of the first pipe is larger than that of the second pipe, the exhaust volume of the exhaust gas is increased, and a large amount of exhaust gas is required for the engine to run at high speed. On the other hand, it passes through the first pipe. The body has several roundabouts, which makes the exhaust gas exhaust path longer and can also produce Higher exhaust back pressure, while maintaining greater torque, and making the exhaust sound more saturated and thicker.

10: Cylinder

11: Inlet end

111: The first air inlet

112: second air inlet

12: Exhaust end

121: Exhaust pipe

13: The first intake pipe

14: The second intake pipe

15: Valve device

16: Silencing cotton

20: The first tube body

21: First paragraph

22: second paragraph

23: Third paragraph

231: connecting hole

30: second tube body

31: First paragraph

32: second paragraph

33: Third paragraph

34: Silence hole

[Picture 1] is a three-dimensional view of this creation.

[Picture 2] is an exploded view of this creation.

[Picture 3] is a cross-sectional view of this creation.

[Picture 4] is a cross-sectional view of this creation from another angle.

[Figure 5] is a schematic diagram of the valve device of this creation being closed and exhausted through the second pipe body.

[Figure 6] is a schematic diagram of the valve device of this creation being opened and exhausted through the first pipe body.

In order to enable your reviewer to have a further understanding and understanding of the purpose, features and effects of this creation, please cooperate with the following [Schematic Description] as detailed below:

First of all, please refer to Figures 1, 2, 3, and 4, an exhaust tail pipe structure comprising: a cylinder 10, a first pipe 20, and a second pipe 30. The cylinder An inlet end 11 and an outlet end 12 are respectively formed at both ends of 10. The inlet end 11 is provided with a first inlet hole 111 and a second inlet hole 112 of equal height parallel to each other. The first and second inlets The air holes 111 and 112 are respectively connected to a first air inlet pipe 13 and a second air inlet pipe 14. The first air inlet pipe 13 is directly connected to the first air inlet hole 111, and one end of the second air inlet pipe 14 Is connected to the second air inlet 112, and the other end of the second air inlet pipe 14 is bent to connect the side of the first air inlet pipe 13 to form communication, and the first air inlet pipe 13 is connected to the second air inlet An adjustable control valve device 15 is provided between the connection of the pipe 14 and the first air inlet 111, the exhaust end 12 is provided with an exhaust pipe 121, and the inside of the cylinder 10 is circumferentially arranged along the inner wall A sound-absorbing cotton 16, the first tube body 20 is eccentrically accommodated in the cylinder body 10, and a first section 21 and a second section are provided with a tortuous turn 22 and a third section 23. The front end of the first section of the first pipe body is connected to the first air inlet and the first air inlet pipe 13, and the first section 21 is connected to the second section 22. Parallel to the same height, the third section 23 is bent downward from the end of the second section 22 and extends toward the center, and the end of the third section 23 is connected to the exhaust pipe 121, and the end side of the third section 23 A connecting hole 231 is provided. The second tube body 30 is eccentrically accommodated in the cylinder body 10, and a first section 31, a second section 32, and a third section 33 are arranged in a tortuous way. The first section 31 The front end is connected to the second air inlet 112 and the second air inlet pipe 14. The second section 32 turns downward from the end of the first section 31 and is directly below the first section 31. The third section 33 is inclined upward from the end of the second section 32 and turned to extend, and the third section 33 of the second tube body 30 is higher than the third section 23 of the first tube body 20, and then the second tube body The end of the third section 33 of 30 is bent downward to connect the connecting hole 231 of the end of the third section 23 of the first tube body 20, and the inner tube diameter of the second tube body 30 is smaller than the inner tube diameter of the first tube body 20 And the surface of the second tube body 30 is covered with a plurality of muffler holes 34.

For the use of its structure, please refer to Figure 5 again. The valve device 15 of the tail pipe normally closes the end of the first intake pipe 13, so that the first intake hole 111 of the intake end 11 is formed. The closed state is suitable for the low-speed state of the engine, which requires a higher back pressure to generate a high torque output. Therefore, when the engine starts and exhausts exhaust gas, the exhaust gas flows along the first intake pipe 13 The second air inlet pipe 14 then flows into the second pipe body 30 with a smaller pipe diameter, and finally is connected by the end of the third section 33 of the second pipe body 30 to flow into the end of the third section of the first pipe body 20, The exhaust gas is further discharged from the exhaust pipe 121. According to this, the exhaust gas is discharged through the long exhaust path of the second pipe body 30, which can effectively achieve the purpose of high back pressure output, and passes through the second pipe body 30. The muffler hole 34 allows part of the exhaust gas to pass through to disperse and reduce the exhaust pressure. At the same time, the muffler cotton 16 absorbs sound and reduces the noise generated by the exhaust after damping, thereby reducing the noise and vibration problems generated under high back pressure.

Furthermore, when the engine is running at high speed, the exhaust volume per unit time increases greatly, and when the exhaust pipe needs to increase the exhaust flow rate to quickly exhaust, then the valve device 15 is switched to In the open state, the end of the first air inlet pipe 13 is opened to communicate with the first air inlet hole 111, so that the first and second air inlet pipes 13, 14 are in a conducting state, because the first air inlet pipe 13 is In a straight-through state, the second intake pipe 14 is bent and connected to the side of the first intake pipe 13, so that the exhaust gas will preferentially pass through the first intake pipe 13, and then flow into the first pipe body 20 and pass through The inner diameter of the first pipe body 20 is larger than the design of the second pipe body 30, so as to increase the exhaust volume of the exhaust gas, and further respond to the large amount of exhaust required by the engine due to high-speed operation. On the other hand, it passes through the first pipe body More than 20 twists and turns make the exhaust gas exhaust path longer, which can also generate higher exhaust back pressure, while maintaining greater torque, and making the exhaust sound more saturated and thick.

With the structure of the above specific embodiment, the following benefits can be obtained: The structure design of the exhaust tail pipe of this invention is to have the first pipe body 20 and the second pipe body 30 have a difference in pipe diameter, and pass the valve device 15 The cut control has two exhaust paths to match the exhaust volume generated by the engine at low and high speeds, so that the exhaust gas can be exhausted in an appropriate exhaust path to meet the large and small exhaust Therefore, it can greatly improve the exhaust effect.

In summary, this creation has indeed achieved a breakthrough structural design, and has improved new content, while at the same time it can achieve industrial utilization and progress. Moreover, this creation has not been seen in any publications, and it is also novel. In accordance with the relevant provisions of the Patent Law, Yan filed a new patent application in accordance with the law, and I implore the Jun Bureau review committee to grant legal patent rights. I really pray.

Only the above is only one of the preferred embodiments of this creation, and should not be used to limit the scope of implementation of this creation; that is, all equal changes and modifications made in accordance with the scope of the patent application for this new model should still belong to this new model. Covered by the patent.

10: Cylinder

11: Inlet end

111: The first air inlet

112: second air inlet

12: Exhaust end

121: Exhaust pipe

13: The first intake pipe

14: The second intake pipe

15: Valve device

16: Silencing cotton

20: The first tube body

21: First paragraph

22: second paragraph

23: Third paragraph

231: connecting hole

30: second tube body

31: First paragraph

33: Third paragraph

34: Silence hole

Claims (4)

An exhaust tail pipe structure, comprising: a cylinder, a first pipe and a second pipe. Both ends of the cylinder are respectively formed with an intake end and an exhaust end, and the intake end is provided with a A first air inlet and a second air inlet. The first and second air inlets are respectively connected to a first air inlet pipe and a second air inlet pipe. The first air inlet pipe is directly connected to the first air inlet pipe. An air inlet, one end of the second air inlet pipe is connected to the second air inlet, and the other end of the second air inlet pipe is bent to connect the side of the first air inlet pipe to form communication, and the first air inlet The pipe is arranged at the junction of the second air inlet pipe and between the first air inlet hole with an adjustable control valve device. A sound-absorbing cotton is provided, the first pipe system is twisted and folded inside the cylinder, and one end of the first pipe body is connected with the first air inlet hole and the first air inlet pipe to form communication, and the first pipe The other end of the body is connected to the exhaust pipe, the second pipe body is also arranged in the cylinder in a tortuous way, the surface of the second pipe body is covered with a plurality of muffler holes, and one end of the second pipe body is The second air inlet hole is connected to the second air inlet pipe, and the other end of the second pipe body is connected to the end of the first pipe body and adjacent to the exhaust pipe, and inside the second pipe body The pipe diameter is smaller than the inner pipe diameter of the first pipe body. The structure of the exhaust tail pipe according to claim 1, wherein the first and second intake ports of the intake end are of the same height and parallel. The exhaust tail pipe structure according to claim 2, wherein the first pipe system is eccentrically accommodated in the cylinder body, and is provided with a first section, a second section and a third section in a tortuous way. A section of the front end is connected to the first intake pipe, and the first section and the second section are connected to each other. Highly parallel, the third section is bent downward from the end of the second section to extend toward the center, and the end of the third section is connected to the exhaust pipe, and a connecting hole is provided on the side of the end of the third section. The structure of the exhaust tail pipe according to claim 3, wherein the second pipe system is eccentrically accommodated in the cylinder, and is provided with a first section, a second section and a third section in a tortuous way. A section of the front end is connected to the second intake pipe, the second section is turned downward from the end of the first section to be directly below the first section, and the third section is turned upwards from the end of the second section Extend, and the third section of the second tube body is higher than the third section of the first tube body, and then bend the end of the third section of the second tube body downward to connect the third section of the first tube body The side of the end.

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