TWM472745U - Improved structure of exhaust pipe - Google Patents

Description

Exhaust pipe structure improvement

This creation relates to an improved exhaust pipe structure, especially an exhaust pipe structure design that simultaneously increases torque output and reduces exhaust noise.

According to the development of the automobile and motorcycle industry, the popularity of steam locomotives is getting higher and higher. It is a very convenient means of transportation. However, in the highly competitive automobile locomotive market, if you want to gain the favor of consumers, not only It is necessary to have a unique design to improve product performance, while reducing production costs, and providing product price advantage is also a major factor. As far as the exhaust pipe is concerned, it mainly has two functions. One is that the exhaust gas discharged after the engine is burned out of the vehicle, and the pressure of the returning cylinder, that is, the back pressure, is generated while the exhaust gas is exhausted, and the engine exhaust stroke is provided. The proper environment allows the internal combustion of the cylinder to achieve complete combustion. The second is to use a silencer to reduce the noise generated by the exhaust shock to an allowable limit. Therefore, the exhaust system occupies an important position in the vehicle power structure.

Furthermore, due to the strength of the back pressure of the exhaust pipe, it is related to the output of the engine power. If the back pressure is too strong, the exhaust gas cannot be completely exhausted from the cylinder, so that the exhaust gas is burned together with the mixed gas, and the combustion efficiency is lowered to hinder the increase of the engine speed; Conversely, if the back pressure is too weak, the mixture will not burn completely, and the engine power output will cause insufficient torque. In general, the design of the exhaust pipe back pressure is mostly provided with a plurality of partitions inside the muffler, and the baffles are blocked by the baffles. These designs are not only costly, but often cause excessive back pressure, which is still not ideal. Therefore, how to design a simple It can also allocate the most appropriate and stable exhaust pipe back pressure structure to provide the best environment for the engine exhaust stroke. It has the needs of the market, and is also a new type of product that consumers are looking forward to. The goal.

In view of this, the creators have focused on the above objectives, and have developed a design system that can be used to provide consumers with a simple, practical, and competitive market advantage. The creative motive of the creative research institute.

The main purpose of this creation is to provide an exhaust pipe structure that can utilize the design of the expansion chamber to form a gas vortex phenomenon through the exhaust gas to effectively reduce exhaust noise and increase the output of the engine torque.

Another object of the present invention is to provide an exhaust pipe structure which is simple in design and easy to manufacture and has the advantage of price, and can enhance the competitiveness of the product market.

In order to achieve the above purpose, the creation is between the pipe sections of the front inlet pipe provided at the front end of the exhaust pipe, and the corresponding guide has a design of an expansion chamber having a large diameter, so that the exhaust gas discharged from the engine is expanded by this. After the gas chamber is introduced into the muffler, and finally discharged from the tail pipe, the exhaust gas flows through the expansion gas chamber to form a gas vortex phenomenon; therefore, the disturbing gas generated by the vortex can absorb the gas sound in the exhaust gas. In addition, the exhaust noise is effectively reduced, and the air pressure in the air chamber is raised to generate an appropriate back pressure, so that the air-fuel mixture in the cylinder can achieve complete combustion, thereby effectively increasing the output of the engine torque.

The exhaust pipe structure as described above, wherein a partition is further disposed inside the expansion gas chamber, and a plurality of air holes are disposed on the partition.

Other features and specific embodiments of the present invention can be combined with the details of the drawings below. In the description, learn more.

1‧‧‧Exhaust pipe

10‧‧‧Inlet intake pipe

11‧‧‧Connector

12‧‧‧Expanded air chamber

13‧‧‧Baffle

14‧‧‧ stomata

20‧‧‧Muffler

30‧‧‧ tail pipe

The first picture is a three-dimensional appearance of the creation.

Fig. 2 is a partially enlarged cross-sectional view of the present creation.

Fig. 3 is a partially enlarged perspective view showing another embodiment of the present creation.

Fig. 4 is a cross-sectional view showing the embodiment of Fig. 3 of the present creation.

Please also refer to the first and second figures. The structure of the exhaust pipe 1 is improved. The structure of the exhaust pipe 1 is roughly the same as the conventional structure. An intake pipe 10 is provided at the front section. The front end of the tube 10 is provided with a joint 11 for connecting the exhaust gas to the engine, and the rear end of the front duct 10 is connected with a muffler 20, and the other end of the muffler 20 is connected with a tail pipe 30; The feature of the present invention is mainly that in the improved creation, the corresponding guide between the pipe sections of the intake front pipe 10 has a large diameter expansion chamber 12 .

In use, when the exhaust gas discharged from the engine is introduced into the intake front pipe 10, the exhaust gas flows through the expansion gas chamber 12, and the gas undergoes a rapid expansion and diffusion change, thereby forming a gas vortex phenomenon (as shown in FIG. 2). By this, the vortex phenomenon can be used to increase the air pressure in the expansion chamber 12 to generate an appropriate back pressure, so that the mixture in the cylinder can achieve complete combustion, so that the output of the engine torque can be effectively improved, and the engine performance can be improved. Play to the fullest effect. Furthermore, some of the air sounds can be absorbed due to the disturbance of the eddy current. Therefore, this creation also has the effect of reducing exhaust noise.

Please refer to FIG. 3 and FIG. 4 again. In another embodiment of the present invention, in the embodiment, a partition 13 is further disposed in the expansion plenum 12 provided in the intake front pipe 10 so that The expansion chamber 12 is divided into two front and rear air chambers, and a plurality of air holes 14 for turbulent flow of gas are distributed on the partition plate 13, whereby the expansion air chamber 12 can be used to form a gas vortex into the exhaust gas. Phenomenon, and at the same time, due to the arrangement of the partition plate 13, the gas in the ventilating phenomenon is gradually passed through the air hole 14 in the partition plate, thereby blocking the time course of the air flow through the expansion air chamber 12, so that the gas pressure in the air chamber is further increased, that is, increased. The back pressure value in the exhaust pipe 1 allows the engine to generate higher torque values at low speeds.

However, the above descriptions are only preferred embodiments of the present invention. When it is not possible to limit the scope of the creation of the creation, it is obvious that those who are familiar with the industry can make changes and modifications. The substance of creation.

In summary, the present embodiment can indeed improve the design with the simplest structure, achieve the expected use effect, have industrial utilization and progress, and the specific structure disclosed is not disclosed before the application. Has met the requirements of the patent application, and filed a patent application according to law.

1‧‧‧Exhaust pipe

10‧‧‧Inlet intake pipe

11‧‧‧Connector

12‧‧‧Expanded air chamber

20‧‧‧Muffler

30‧‧‧ tail pipe

Claims (3)

The utility model relates to an improved structure of an exhaust pipe, wherein the exhaust pipe comprises an intake front pipe with one end connected to the engine to introduce the exhaust gas, and the other end of the intake front pipe is connected with a muffler; the improved feature is that the intake front pipe is between the pipe sections The corresponding guide has a large diameter expansion chamber, which causes an eddy current phenomenon when the exhaust gas is discharged through the air chamber; thereby, not only the proper back pressure can be generated through the gas vortex, thereby improving the performance of the engine to the maximum effect. At the same time, the turbulence disturbance can also be used to absorb the air sound to reduce the exhaust noise. According to the improvement of the structure of the exhaust pipe according to the first aspect of the patent application, the inside of the expansion air chamber is further provided with a partition having a plurality of air holes. According to the improvement of the structure of the exhaust pipe according to the first aspect of the patent application, the tail pipe of the muffler is provided with a tail pipe for discharging the gas.