CN210317440U

CN210317440U - Muffler tail pipe for engine

Info

Publication number: CN210317440U
Application number: CN201920262621.5U
Authority: CN
Inventors: 李俊庆; 郭磊; 薛原; 谷志强; 赵茜茜
Original assignee: Jikai Hebei Electromechanical Technology Co ltd
Current assignee: Jikai Hebei Electromechanical Technology Co ltd
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2020-04-14
Anticipated expiration: 2029-03-01

Abstract

The utility model discloses a muffler tail pipe for engine, including amortization tail pipe shell, one side internal surface of amortization tail pipe shell is provided with filters amortization mechanism, the internal fixed surface of amortization tail pipe shell is connected with the partition wall device. A muffler tail pipe for engine, be equipped with and filter amortization mechanism, division wall device and convection effect amortization mechanism, can also increase amortization and filterable effect under the low temperature condition, and can cut apart into a plurality of cavities with the tail pipe and increase the probability that waste gas launches and collides in the cavity is inside, the energy of consuming waste gas reaches the volume of noise reduction, can also utilize the bypass pipe phenomenon, the average flow convection effect that utilizes the bypass pipe to cause lets the final energy that weakens of sound wave interact in four cavitys, thereby realize the principle of the effect of noise reduction, can effectual reduction low-frequency noise and increased the noise frequency bandwidth that can reduce, bring better user prospect.

Description

Muffler tail pipe for engine

Technical Field

The utility model relates to a muffler field, in particular to muffler tail pipe for engine.

Background

The muffler tail for the gas engine is a device which can discharge waste gas discharged by the gas engine after energy consumption to reduce noise generation, and along with the continuous development of science and technology, the requirements of people on the manufacturing process of the muffler tail for the gas engine are higher and higher; the existing silencer tail pipe for the gas engine has certain defects when in use, firstly, the tail pipe cannot have good silencing and filtering effects at low temperature, secondly, the tail gas cannot be reflected and collided in the tail pipe to the maximum extent, the energy of waste gas is consumed, the noise is reduced, the use of people is not facilitated, in addition, the low-frequency noise cannot be effectively reduced, the bandwidth of the frequency capable of reducing the noise cannot be increased, certain adverse effects are brought to the use process of people, and therefore the silencer tail pipe for the engine is provided.

Disclosure of Invention

The utility model discloses a main aim at provides a muffler tail pipe for engine can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a muffler tail pipe for engine, includes amortization tail pipe shell, one side internal surface of amortization tail pipe shell is provided with filters amortization mechanism, the internal surface fixed connection of amortization tail pipe shell has the partition wall device, the middle part surface of partition wall device is provided with convection effect amortization mechanism.

The filtering and silencing mechanism can also ensure the silencing effect under the condition of low temperature.

The energy of the exhaust gas is maximally consumed through the designed separation wall device, and the volume of noise is reduced.

The convection effect silencing mechanism utilizes the bypass pipe phenomenon to reduce noise pollution, and is convenient for people to use.

Preferably, the middle part of filtering and silencing mechanism is provided with a mesh pore plate, the middle part surface of mesh pore plate is provided with diamond holes, the middle part surface of mesh pore plate is run through to one side surface of diamond hole, the quantity of diamond hole is a plurality of groups.

Preferably, the upper end of the partition wall device is fixedly provided with a partition wall, the lower end of the partition wall is provided with a partition wall II, and the lower end of the partition wall II is provided with a partition wall III.

Preferably, the upper end of convection effect noise reduction mechanism is provided with a bypass muffler mouth, the lower extreme of a bypass muffler mouth is provided with No. two bypass muffler mouths, the lower extreme of No. two bypass muffler mouths is provided with No. three bypass muffler mouths.

Preferably, the surface of one side of a division wall is provided with the amortization chamber No. one, the opposite side surface of a division wall is provided with the amortization chamber No. two, the surface of one side of No. two division walls is provided with the amortization chamber No. three, the surface of one side of No. three division walls is provided with the amortization chamber No. four.

Preferably, the outer surface of one end of the shell of the silencing tail pipe is fixedly connected with a tail gas inlet pipe, and the outer surface of the other end of the shell of the silencing tail pipe is fixedly provided with a silencing tail gas discharge pipe.

Compared with the prior art, the utility model discloses following beneficial effect has: the tail pipe of the silencer for the engine can consume and filter the waste gas in the diamond hole when the waste gas enters the interior under the condition of low temperature through the arranged filtering silencing mechanism, can also increase the silencing effect at the low temperature, is beneficial to people to use, can divide the tail pipe into four chambers through the first separation wall, the second separation wall and the third separation wall through the arranged separation wall device, can ensure that the waste gas is emitted and collided in the tail pipe to the maximum extent, can maximally consume the energy of the waste gas, can reduce the volume of noise, is beneficial to people to use, can use a bypass pipe phenomenon through the arrangement of the convection effect silencing mechanism, ensures that the sound waves in the four chambers interact with each other to finally weaken the energy through the average flow convection effect caused by the bypass pipe, thereby realizing the effect of reducing the noise, effectively reducing the low-frequency noise and increasing the bandwidth of the frequency of the noise which can be reduced, the whole silencer tail for the gas engine is simple in structure, convenient to operate and better in using effect compared with the traditional mode.

Drawings

Fig. 1 is a schematic view of the whole structure of a tail pipe of a muffler for an engine according to the present invention.

Fig. 2 is an internal view of a tail pipe of a muffler for an engine according to the present invention.

Fig. 3 is a schematic structural diagram of a filtering and silencing mechanism 4 in a tail pipe of a silencer for an engine according to the present invention.

Fig. 4 is a schematic structural view of the partition wall device 5 in the tail pipe of the muffler for an engine according to the present invention.

Fig. 5 is a schematic structural diagram of a convection effect silencing mechanism 6 in a tail pipe of a silencer for an engine according to the present invention.

In the figure: 1. a shell of the silencing tail pipe; 2. a tail gas inlet pipe; 3. a noise reduction exhaust pipe; 4. a filtering and silencing mechanism; 5. a partition wall device; 6. a convection effect silencing mechanism; 7. a second silencing cavity; 8. a third silencing cavity; 9. a fourth sound-deadening chamber; 10. a first silencing cavity; 11. a mesh-like orifice plate; 12. rhombic holes; 13. a first separation wall; 14. a second separation wall; 15. a third partition wall; 16. a first bypass silencer; 17. a second bypass silencing port; 18. and a third bypass silencing port.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-5, a tail pipe of a silencer for an engine comprises a shell 1 of the tail pipe, a filtering and silencing mechanism 4 is arranged on the inner surface of one side of the shell 1 of the tail pipe, a partition wall device 5 is fixedly connected to the inner surface of the shell 1 of the tail pipe, and a convection effect silencing mechanism 6 is arranged on the outer surface of the middle part of the partition wall device 5.

The middle part of the filtering and silencing mechanism 4 is provided with a mesh-shaped pore plate 11, the outer surface of the middle part of the mesh-shaped pore plate 11 is provided with diamond holes 12, the outer surface of one side of each diamond hole 12 penetrates through the outer surface of the middle part of the mesh-shaped pore plate 11, the number of the diamond holes 12 is a plurality of groups, and the silencing effect can be improved at low temperature; the first partition wall 13 is fixedly installed at the upper end of the partition wall device 5, the second partition wall 14 is arranged at the lower end of the first partition wall 13, and the third partition wall 15 is arranged at the lower end of the second partition wall 14, so that the energy of waste gas can be maximally consumed, and the volume of noise is reduced; the upper end of the convection effect silencing mechanism 6 is provided with a first bypass silencing port 16, the lower end of the first bypass silencing port 16 is provided with a second bypass silencing port 17, the lower end of the second bypass silencing port 17 is provided with a third bypass silencing port 18, and noise pollution is reduced by utilizing a bypass pipe phenomenon; the outer surface of one side of the first separation wall 13 is provided with a first silencing cavity 10, the outer surface of the other side of the first separation wall 13 is provided with a second silencing cavity 7, the outer surface of one side of the second separation wall 14 is provided with a third silencing cavity 8, and the outer surface of one side of the third separation wall 15 is provided with a fourth silencing cavity 9, so that the multistage consumption of waste gas is facilitated; the outer fixed surface of one end of amortization tail pipe shell 1 is connected with tail gas inlet pipe 2, and the outer fixed surface of the other end of amortization tail pipe shell 1 installs amortization tail gas discharge pipe 3, is favorable to discharging the waste gas of engine.

It should be noted that, the utility model relates to a muffler tail pipe for an engine, when using, because the tail gas temperature of the present air engine is lower, the filtration noise reduction mechanism 4 that we set up, through improving noise reduction effect and filtration effect in the inside of mesh orifice plate 11 and diamond hole 12 at low temperature tail gas, the partition wall device 5 that we set up divides the tail pipe into four cavities, be No. one noise reduction cavity 10, No. two noise reduction cavity 7, No. three noise reduction cavity 8 and No. four noise reduction cavity 9 respectively, and No. one partition wall 13, No. two partition wall 14 and No. three partition wall 15 through theoretical calculation and design into 43 degrees with the air inlet direction, the noise reduction effect that obtains is strongest, according to the law and the actual conditions of air motion, No. one noise reduction cavity 10, No. two noise reduction cavity 7 and No. three noise reduction cavity 8, No. four noise reduction cavity 9 of tail pipe are designed, through the design can let the noise reflect at the tail pipe, the collision increases four to five times, thereby the volume of the noise abatement of very big degree, we use the bypass pipe now through convection effect amortization mechanism 6 again, the average flow convection effect that the bypass pipe causes lets the final energy that weakens of sound wave interact in four cavitys, thereby realize the effect of noise reduction, utilize this principle can effectual reduction low frequency noise and increased the bandwidth of the frequency of the noise that can reduce, we adopt neotype structural design, there is good performance to low frequency noise's reduction, possess wider noise reduction frequency bandwidth, in addition we divide into very many sections with the tubular metal resonator, can reach the effect of multistage amortization, be favorable to people to use, and is relatively practical.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a muffler tail pipe for engine, includes amortization tail pipe shell (1), its characterized in that: the utility model discloses a noise reduction tail pipe, including amortization tail pipe shell (1), the internal surface of one side of amortization tail pipe shell (1) is provided with filters amortization mechanism (4), the internal surface fixed connection of amortization tail pipe shell (1) has division wall device (5), the middle part surface of division wall device (5) is provided with convection effect amortization mechanism (6).

2. A tail pipe for a muffler for an engine according to claim 1, characterized in that: the middle part of filtering amortization mechanism (4) is provided with netted orifice plate (11), the middle part surface of netted orifice plate (11) is provided with diamond hole (12), the middle part surface of netted orifice plate (11) is run through to one side surface of diamond hole (12), the quantity of diamond hole (12) is a plurality of groups.

3. A tail pipe for a muffler for an engine according to claim 1, characterized in that: the upper end fixed mounting of division wall device (5) has division wall (13) No. one, the lower extreme of division wall (13) is provided with division wall (14) No. two, the lower extreme of division wall (14) No. three is provided with division wall (15).

4. A tail pipe for a muffler for an engine according to claim 1, characterized in that: the upper end of convection effect amortization mechanism (6) is provided with bypass amortization mouth (16) No. one, the lower extreme of bypass amortization mouth (16) is provided with No. two bypass amortization mouths (17), the lower extreme of No. two bypass amortization mouths (17) is provided with No. three bypass amortization mouths (18).

5. A tail pipe of a muffler for an engine according to claim 3, characterized in that: a side surface of a partition wall (13) is provided with a silencing cavity (10), the other side surface of the partition wall (13) is provided with a silencing cavity (7), one side surface of a partition wall (14) is provided with a silencing cavity (8), and one side surface of a partition wall (15) is provided with a silencing cavity (9).

6. A tail pipe for a muffler for an engine according to claim 1, characterized in that: the outer fixed surface of one end of amortization tail pipe shell (1) is connected with tail gas inlet pipe (2), the outer fixed surface of the other end of amortization tail pipe shell (1) installs amortization tail gas discharge pipe (3).