CN211008817U

CN211008817U - Exhaust silencer system for internal combustion engine

Info

Publication number: CN211008817U
Application number: CN201922246958.XU
Authority: CN
Inventors: 张智豪
Original assignee: SHIYAN JUDI METAL PIPES CO Ltd
Current assignee: SHIYAN JUDI METAL PIPES CO Ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-07-14
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses an exhaust silencer system for internal combustion engine, including silencer casing and blast pipe, silencer casing's inside is provided with the asbestos, and asbestos inside is provided with the intake pipe, first hush pipe is installed to one side of intake pipe, and one side of first hush pipe installs the baffle, install the second hush pipe between the baffle, and the outer wall of second hush pipe and first hush pipe all is provided with first hush hole, the third hush pipe is installed to the below of baffle, and the outer wall of third hush pipe is provided with the second hush hole, the aluminum pipe is installed to one side of third hush pipe, and the drain pipe is installed to the below of aluminum pipe. This exhaust silencer system for internal-combustion engine is provided with baffle and asbestos, can effectually divide a plurality of spaces with the inside of silencer casing through the baffle for the sound that stores between the baffle can with the asbestos between abundant emergence noise reduction function, make the asbestos can the high-efficient utility of performance self.

Description

Exhaust silencer system for internal combustion engine

Technical Field

The utility model relates to an exhaust silencer technical field specifically is an exhaust silencer system for internal combustion engine.

Background

An internal combustion engine is a power machine, which is a heat engine that directly converts heat energy released by burning fuel inside the machine into power. The automobile silencer is mainly used for reducing the noise generated when an engine of a motor vehicle works, and the principle is that an automobile exhaust pipe is composed of two pipelines with different lengths, the two pipelines are separated and then intersected, and the length difference value of the two pipelines is equal to half of the wavelength of sound waves emitted by an automobile, so that two rows of sound waves are interfered to be mutually offset when being superposed to weaken the sound intensity, the transmitted sound is reduced, and the silencing effect is achieved. Because the length difference of the two pipelines is equal to half of the wavelength of the sound waves emitted by the automobile, the two lines of sound waves interfere with each other to offset when being superposed, so that the sound intensity is weakened, the sound is reduced, and the silencing effect is achieved. With the development of the automobile muffler market in China, the application and research and development of related core production technologies are bound to become the focus of attention of enterprises in the industry.

Current exhaust silencer system is in the use, and is comparatively single to the structure of tail gas amortization, and is lower to the effect of tail gas sound attenuation, and the inside of muffler remains steam easily, and steam will corrode the inside subassembly of muffler, and the user demand of satisfying people that can not be fine carries out technical innovation on current exhaust silencer system basis to above-mentioned condition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an exhaust silencer system for internal combustion engine to propose current exhaust silencer system in the use among the above-mentioned background art of solution, it is comparatively single to the structure of tail gas amortization, lower to the effect that tail gas sound weakens, and the inside of muffler remains steam easily, and steam will corrode the inside subassembly of muffler, the not fine user demand problem of satisfying people.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an exhaust silencer system for internal combustion engine, includes silencer casing and blast pipe, the inside of silencer casing is provided with the asbestos, and the asbestos inside is provided with the intake pipe, first hush pipe is installed to one side of intake pipe, and one side of first hush pipe installs the baffle, install the second hush pipe between the baffle, and the outer wall of second hush pipe and first hush pipe all is provided with first hush hole, the third hush pipe is installed to the below of baffle, and the outer wall of third hush pipe is provided with the second hush hole, the aluminum pipe is installed to one side of third hush pipe, and the below of aluminum pipe installs the drain pipe, the inside of drain pipe is provided with the aluminium frame, and the inside of aluminium frame is provided with the through-hole, the blast pipe is located one side of aluminum pipe.

Preferably, the inner surface of the muffler shell is partially closely attached to the outer surface of the asbestos, and the horizontal center line of the muffler shell and the horizontal center line of the asbestos are overlapped.

Preferably, the horizontal center line of the silencer shell is perpendicular to the partition plates, the partition plates are uniformly distributed along the horizontal center line of the silencer shell, and the number of the partition plates is three.

Preferably, the first silencing pipe penetrates through the second silencing pipe, and the first silencing holes are uniformly distributed along the peripheries of the first silencing pipe and the second silencing pipe respectively.

Preferably, the diameter of the outer wall of the third silencing pipe is smaller than that of the inner wall of the aluminum pipe, and the second silencing holes are uniformly distributed along the periphery of the third silencing pipe.

Preferably, the drain pipe runs through the lower edge of the aluminum pipe, the vertical center line of the drain pipe and the vertical center line of the aluminum frame are overlapped, and the through holes are uniformly distributed along the inside of the aluminum frame.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model is provided with the partition board and the asbestos, the inner part of the silencer shell can be effectively divided into a plurality of spaces through the partition board, so that the sound stored between the partition boards can fully generate the sound reduction function with the asbestos, and the asbestos can efficiently exert the effect of the asbestos;

2. the utility model is provided with the first silencing pipe and the second silencing pipe, and a certain gap is arranged between the first silencing pipe and the second silencing pipe, so that tail gas can be acted by the first silencing hole when flowing through the first silencing pipe and the second silencing pipe, and the energy of the tail gas is effectively consumed, thereby achieving the function of noise reduction;

3. the utility model discloses be provided with second bloop and aluminum pipe, under the effect of second bloop, can obtain the effect of falling sound once more, and certain clearance has between third bloop pipe and the aluminum pipe, and the aluminum pipe has good heat-sinking capability, when the amortization to tail gas, will produce certain steam, at this moment, steam adsorbs the inner wall at the aluminum pipe, be provided with through-hole and drain pipe, steam accessible through-hole flows through the outside that the drain pipe discharged the muffler, avoid steam to pile up the inside at the muffler, corrode the inside subassembly of muffler, and the evenly distributed of through-hole can make steam be the drop of water form and flow, and avoid the noise cancelling effect that the drain pipe destroys the muffler.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a second muffler pipe according to the present invention;

FIG. 3 is a schematic sectional view of the drain pipe of the present invention;

fig. 4 is a schematic view of a part of an enlarged structure at a in fig. 3 according to the present invention.

In the figure: 1. an air inlet pipe; 2. a muffler housing; 3. a first silencer duct; 4. asbestos; 5. a first muffling hole; 6. a second muffler pipe; 7. a partition plate; 8. a third muffler pipe; 9. a second muffling hole; 10. an aluminum tube; 11. a drain pipe; 12. an exhaust pipe; 13. an aluminum frame; 14. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an exhaust silencer system for an internal combustion engine comprises a silencer shell 2 and an exhaust pipe 12, wherein asbestos 4 is arranged inside the silencer shell 2, an air inlet pipe 1 is arranged inside the asbestos 4, the inner surface of the silencer shell 2 is locally and tightly attached to the outer surface of the asbestos 4, the horizontal center line of the silencer shell 2 is overlapped with the horizontal center line of the asbestos 4, and noise generated by exhaust emission can be effectively weakened through the asbestos 4, so that decibels of sound generated by the internal combustion engine are reduced;

the silencer comprises an air inlet pipe 1, a first silencing pipe 3, three clapboards 7, a silencer shell 2 and asbestos 4, wherein the first silencing pipe 3 is arranged on one side of the air inlet pipe 1, the clapboards 7 are arranged on one side of the first silencing pipe 3, the horizontal central line of the silencer shell 2 is perpendicular to the clapboards 7, the clapboards 7 are uniformly distributed along the horizontal central line of the silencer shell 2, the clapboards 7 are arranged in three numbers, the inner part of the silencer shell 2 can be effectively divided into a plurality of spaces through the clapboards 7, sound stored between the clapboards 7 can be fully reduced with the asbestos 4, the asbestos 4 can efficiently exert the effect of the asbestos 4, the second silencing pipe 6 is arranged between the clapboards 7, first silencing holes 5 are formed in the outer walls of the second silencing pipe 6 and the first silencing pipe 3, the first silencing pipes 3 penetrate through the inner part of the second silencing pipe 6, and the first silencing holes 5 are uniformly distributed along the peripheries of the first silencing pipe 3 and, a certain gap is formed between the first silencing pipe 3 and the second silencing pipe 6, so that when tail gas flows through the first silencing pipe 3 and the second silencing pipe 6, the tail gas can be acted by the first silencing hole 5, the energy of the tail gas is effectively consumed, and the sound reducing function is achieved, a third silencing pipe 8 is installed below the partition plate 7, a second silencing hole 9 is formed in the outer wall of the third silencing pipe 8, the diameter of the outer wall of the third silencing pipe 8 is smaller than that of the inner wall of the aluminum pipe 10, the second silencing holes 9 are uniformly distributed along the periphery of the third silencing pipe 8, when the tail gas flows through the third silencing pipe 8, a secondary sound reducing effect can be achieved under the action of the second silencing hole 9, a certain gap is formed between the third silencing pipe 8 and the aluminum pipe 10, the aluminum pipe 10 has good heat radiating capacity, when the tail gas is silenced, a certain amount of water vapor is generated, at the moment, the water vapor aluminum pipe is adsorbed on the inner wall of the aluminum pipe 10, aluminum pipe 10 is installed to one side of third muffler pipe 8, and drain pipe 11 is installed to the below of aluminum pipe 10, the inside of drain pipe 11 is provided with aluminium frame 13, and the inside of aluminium frame 13 is provided with through-hole 14, drain pipe 11 runs through in the below edge of aluminum pipe 10, and coincide each other between the vertical central line of drain pipe 11 and the vertical central line of aluminium frame 13, and the inside evenly distributed of aluminium frame 13 is followed to through-hole 14, steam accessible through-hole 14 flows through the outside that drain pipe 11 discharged the muffler, avoid steam to pile up in the inside of muffler, corrode the inside subassembly of muffler, and the evenly distributed of through-hole 14 can make steam be the drop form and flow, and avoid drain pipe 11 to destroy the noise cancelling effect of muffler, blast pipe 12 is located one side of aluminum pipe 10.

The working principle is as follows: when the exhaust silencer system for the internal combustion engine is used, firstly, tail gas is guided into the first silencing pipe 3 along the inside of the air inlet pipe 1, and at the moment, the tail gas flows through the first silencing pipe 3 and the second silencing pipe 6 and is acted by the first silencing hole 5, so that the energy of the tail gas is effectively consumed, and the function of reducing the noise is achieved;

secondly, a part of tail gas is discharged between the partition plates 7, and at the moment, sound stored between the partition plates 7 and the asbestos 4 can be fully subjected to a sound reduction function;

finally, the gas is introduced into the third muffling pipe 8, and under the action of the second muffling hole 9, the second muffling effect can be obtained, and the generated water vapor is discharged to the outside of the muffler through the water discharge pipe 11 via the through hole 14, which is the working principle of the exhaust muffler system for the internal combustion engine.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An exhaust muffler system for an internal combustion engine, comprising a muffler case (2) and an exhaust pipe (12), characterized in that: the silencer is characterized in that asbestos (4) is arranged inside the silencer shell (2), an air inlet pipe (1) is arranged inside the asbestos (4), a first silencing pipe (3) is installed on one side of the air inlet pipe (1), a partition plate (7) is installed on one side of the first silencing pipe (3), a second silencing pipe (6) is installed between the partition plates (7), first silencing holes (5) are formed in the outer walls of the second silencing pipe (6) and the first silencing pipe (3), a third silencing pipe (8) is installed below the partition plate (7), a second silencing hole (9) is formed in the outer wall of the third silencing pipe (8), an aluminum pipe (10) is installed on one side of the third silencing pipe (8), a water outlet pipe (11) is installed below the aluminum pipe (10), an aluminum frame (13) is arranged inside the water outlet pipe (11), and a through hole (14) is formed inside the aluminum frame (13), the exhaust pipe (12) is located on one side of the aluminum pipe (10).

2. The exhaust muffler system for an internal combustion engine according to claim 1, wherein: the inner surface of the silencer shell (2) is locally and tightly attached to the outer surface of the asbestos (4), and the horizontal center line of the silencer shell (2) and the horizontal center line of the asbestos (4) are overlapped.

3. The exhaust muffler system for an internal combustion engine according to claim 1, wherein: the horizontal center line of the silencer shell (2) is perpendicular to the partition plates (7), the partition plates (7) are evenly distributed along the horizontal center line of the silencer shell (2), and the number of the partition plates (7) is three.

4. The exhaust muffler system for an internal combustion engine according to claim 1, wherein: the first silencing pipe (3) penetrates through the inside of the second silencing pipe (6), and the first silencing holes (5) are uniformly distributed along the peripheries of the first silencing pipe (3) and the second silencing pipe (6) respectively.

5. The exhaust muffler system for an internal combustion engine according to claim 1, wherein: the diameter of the outer wall of the third silencing pipe (8) is smaller than that of the inner wall of the aluminum pipe (10), and the second silencing holes (9) are uniformly distributed along the periphery of the third silencing pipe (8).

6. The exhaust muffler system for an internal combustion engine according to claim 1, wherein: the drain pipe (11) penetrates through the lower edge of the aluminum pipe (10), the vertical center line of the drain pipe (11) and the vertical center line of the aluminum frame (13) are overlapped, and the through holes (14) are uniformly distributed along the inside of the aluminum frame (13).