KR20160001711U

KR20160001711U - Muffler for Automobile

Info

Publication number: KR20160001711U
Application number: KR2020140008287U
Authority: KR
Inventors: 김희진; 정철수; 최수식; 우성동; 신석재
Original assignee: 디젠스 주식회사
Priority date: 2014-11-12
Filing date: 2014-11-12
Publication date: 2016-05-20

Abstract

An exhaust gas moving pipe 102 is formed to pass through the both end plates 121 and 122 of the muffler body 101. An exhaust gas moving pipe hole 102a is formed in the exhaust gas moving pipe 102, A front muffler 100 configured to fill a space formed by the muffler body 101 and the outside of the muffler body 102 with the sound absorbing material 103; The space formed in the rear muffler body 201 by the first and second end plates 221 and 222 is divided by the first partition wall 204 and the second partition wall 205, A space 1 206 is formed between the first and second barrier ribs 205 and 205 and a space 207 is formed between the second barrier rib 205 and the first barrier rib 204, A space 3 208 is formed between the first partition walls 204 and an exhaust gas inlet pipe 202 communicating with the exhaust gas moving pipe 102 is formed between the first end plate 221 and the first partition wall 204, And the exhaust gas outlet pipe 203 in which the inlet 203a is located in the space 3 208 is connected to the first partition wall 204 and the second partition wall 205, And a rear muffler (200) passing through the second end plate (222) through the second partition (205).

Description

[0001] Muffler for Automobile [0002]

The present invention relates to a muffler for a vehicle having improved structure.

In an engine of an automobile using an engine of an internal combustion engine as a power source, a high-temperature and high-pressure exhaust gas is discharged accompanied by severe noise, and a silencer is installed and used as means for attenuating exhaust noise and pressure of the exhaust gas. At present, the demand level of the silencer of such automobile is increasing day by day, and the composition of the silencer is becoming increasingly complicated. As the composition of the silencer is becoming more complicated, the desired silencer effect may be improved. However, Which is difficult and requires a lot of manufacturing costs, and the number of fragile parts for exhaust gas at high temperature and high pressure increases, resulting in frequent failures and shortening of service life. That is, the conventional mufflers for automobiles are relatively simple in structure and easy to manufacture, and it is difficult to achieve the required noise effect. The noise effect is too complicated to manufacture with a complicated and complicated manufacturing process, There are frequent failures and short life spans.

In the case of the rear muffler, exhaust gas inlet and outlet pipes, a resonator, and a bulkhead are formed. The front muffler includes an exhaust gas moving pipe and a sound absorbing material. Through the interaction of the two mufflers, the exhaust gas with the high temperature and high pressure explosion sound generated by the engine passes through the silencer to attenuate the noise. Due to the improvement of automobile technology and the improvement of consumer demand, the structure of the silencer is desired to be light in weight and small in noise. Through the tuning of the internal structure, the quality was improved and satisfied.

The object of the present invention is to provide a muffler which can exhibit excellent noise reduction effect through acoustic tuning of the internal structure of the silencer, So that it is possible to provide a silencer for an automobile having a long service life.

An exhaust gas moving pipe 102 is formed to pass through the both end plates 121 and 122 of the muffler body 101. An exhaust gas moving pipe hole 102a is formed in the exhaust gas moving pipe 102, A front muffler 100 configured to fill a space formed by the muffler body 101 and the outside of the muffler body 102 with the sound absorbing material 103;

The space formed in the rear muffler body 201 by the first and second end plates 221 and 222 is divided by the first partition wall 204 and the second partition wall 205, A space 1 206 is formed between the first and second barrier ribs 205 and 205 and a space 207 is formed between the second barrier rib 205 and the first barrier rib 204, A space 3 208 is formed between the first bank 204,

An exhaust gas inlet pipe 202 communicating with the exhaust gas moving pipe 102 passes through the first end plate 221 and the first partition wall 204 and the second partition wall 205, And an exhaust gas outlet pipe 203 in which the inlet 203a is located in the space 3 208 passes through the first partition wall 204 and the second partition wall 205 and passes through the second end plate 222 A rear muffler 200;

And a muffler for muffling the muffler.

According to the present invention, there is provided a muffler for an automobile which can solve the problems of the prior art and which can easily produce and maintain a long service life while providing an excellent noise reduction effect as described above.

There is provided an automobile muffler capable of effectively reducing exhaust noise of a vehicle while utilizing a limited space at a lower portion of the vehicle. There is provided an automobile silencer of excellent performance with excellent noise damping effect, productivity, and only a proper level of back pressure loss.

According to the present invention, there is provided a silencer for an automobile which can constitute an efficient exhaust noise attenuation path by arranging a specific structure in a muffler with a small capacity and arranging a suction, a discharge pipe and a sound absorbing material, and increasing a noise reduction effect without a large back pressure do.

1 is a schematic view of a muffler according to an embodiment of the present invention;
2 is a schematic view of a rear muffler according to one embodiment of the present invention;
FIG. 3 is a configuration view of a rear muffler first partition according to an embodiment of the present invention; FIG.
FIG. 4 is a schematic view of a rear muffler second partition according to an embodiment of the present invention; FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A muffler for a vehicle according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 2 is a schematic view of a rear muffler according to one embodiment of the present invention. FIG. 3 is a front view of a rear muffler first partition according to an embodiment of the present invention. FIG. And FIG. 4 is a configuration view of a rear muffler second partition according to an embodiment of the present invention.

1 to 3, a muffler for a vehicle according to an embodiment of the present invention includes a front muffler 100 and a rear muffler 200. The front muffler 100 is constructed such that the moving pipe 102 is passed through the both end plates 121 and 122 of the muffler body 101 and the exhaust gas moving pipe 102a is formed in the exhaust gas moving pipe 102, And the sound absorbing agent 103 fills the space outside the exhaust gas moving pipe 102 and the space formed by the muffler body 101.

The rear muffler 200 is configured such that the first partition wall 204 and the second partition wall 205 divide the space formed in the rear muffler body 201 by the first and second end plates 221 and 222, A space 1 206 is formed between the end plate 222 and the second partition 205 and a space 207 is formed between the second partition 205 and the first partition 204, A space 3 208 is formed between the first end plate 221 and the first partition wall 204. An exhaust gas inlet pipe 202 communicating with the exhaust gas moving pipe 102 passes through the first end plate 221 and the first partition wall 204 and the second partition wall 205, And an exhaust gas outlet pipe 203 in which the inlet 203a is located in the space 3 208 passes through the second end plate 222 through the first partition wall 204 and the second partition wall 205 .

1 to 3, in the muffler for a structure-improved automobile according to the embodiment of the present invention, an exhaust gas inlet pipe hole 202a is formed at a position of the space 2 (207) of the exhaust gas inlet pipe 202, And an exhaust gas outlet pipe hole 203b is formed at the position of the space 2 (207) of the exhaust gas outlet pipe 203. A first partition wall 204a is formed in the first partition wall 204 to communicate the space 3 208 and the space 2 207 and a second partition wall 205a is formed in the second partition 205 Space 1 206 and space 2 207 are communicated with each other.

1 to 3, in a muffler for automobile having improved structure according to an embodiment of the present invention, a portion where an exhaust gas outlet pipe hole 203b of an exhaust gas outlet pipe 203 is formed is connected to a resonator 203c And a cavity for resonance formed between the resonator 203c and the exhaust gas outlet pipe 203 is filled with the resonator absorbing material 203d. It is preferable that the condensed water is discharged to the outlet after the condensed water flows into the inlet of the exhaust gas outlet pipe 203 and also serves as the condensed water discharge pipe.

Functional action will be described. The present invention relates to a muffler which is an exhaust noise attenuating part and is composed of two mufflers. The muffler of the present invention includes an exhaust gas moving pipe 102, a sound absorbing material 103 and an exhaust gas inlet pipe 202 inside the rear muffler main body 201, first and second partition walls 204 and 205 inside the front muffler body 101, And exhaust gas outlet pipe 203. The exhaust gas passes through the front muffler exhaust gas moving pipe and enters the space 1 through the exhaust gas inlet pipe of the rear muffler and then passes through the exhaust gas outlet 203, And is discharged to the exhaust through the pipe 203.

As a result, the characteristic frequencies are attenuated through the sound absorbing material 103. The exhaust gas passing through the front muffler is discharged through the exhaust of the rear muffler And enters the rear muffler through the gas inlet pipe 202. Exhaust gas entering through the exhaust gas inlet pipe 202 enters the space 1 and travels to the space 3 through the partition wall lifetimes 204a and 205a to reduce exhaust flow noise. Further, the noise and the back pressure are reduced through the exhaust gas inlet pipe hole 202a. After entering the space 3 through the partition holes 204a and 205, the exhaust gas is guided to the exhaust gas outlet pipe again, ) To attenuate the flow noise in the high frequency region, and the exhaust gas is released into the atmosphere. Then, the condensed water generated by the cooling of the exhaust gas is sucked into the inlet 203a of the exhaust gas outlet pipe 203, and is discharged to the atmosphere together with the exhaust gas through the exhaust gas outlet pipe.

Although the present invention has been described in connection with the preferred embodiments described above, the scope of the present invention is not limited to these embodiments. The scope of the present invention is defined by the following claims, &Lt; RTI ID = 0.0 > and / or < / RTI >

It is to be understood that the appended claims are not intended to limit the scope of the invention in any way.

100: front muffler 101: muffler main body
102: exhaust gas moving pipe 102a: exhaust gas moving pipe hole
103: Sound absorbing agent
200: Rear muffler 201: Rear muffler body
202: Exhaust gas inlet tube 202a: Exhaust gas inlet tube hole
203: Exhaust gas outlet pipe 203a: Condensate water outlet pipe
203b: exhaust gas outlet tube hole 203c: resonator
203d: resonator sound-absorbing agent 204: first partition
204a: first partition wall hole 205: second partition wall
205a: second partition hole 206: space 1
207: space 2 208: space 3 121, 122, 221, 22: end plate

Claims

An exhaust gas moving pipe 102 is formed to pass through the both end plates 121 and 122 of the muffler body 101. An exhaust gas moving pipe hole 102a is formed in the exhaust gas moving pipe 102, A front muffler 100 configured to fill a space formed by the muffler body 101 and the outside of the muffler body 102 with the sound absorbing material 103;

The space formed in the rear muffler body 201 by the first and second end plates 221 and 222 is divided by the first partition wall 204 and the second partition wall 205, A space 1 206 is formed between the first and second barrier ribs 205 and 205 and a space 207 is formed between the second barrier rib 205 and the first barrier rib 204, A space 3 208 is formed between the first bank 204,
An exhaust gas inlet pipe 202 communicating with the exhaust gas moving pipe 102 passes through the first end plate 221 and the first partition wall 204 and the second partition wall 205, And an exhaust gas outlet pipe 203 in which the inlet 203a is located in the space 3 208 passes through the first partition wall 204 and the second partition wall 205 and passes through the second end plate 222 A rear muffler 200;
And a muffler for muffling the muffler.

The method according to claim 1,
An exhaust gas inlet pipe hole 202a is formed in the exhaust gas inlet pipe 202 at a position of the space 2 (207)
And an exhaust gas outlet pipe hole (203b) is formed at a position of the space (207) of the exhaust gas outlet pipe (203).

3. The method of claim 2,
A first partition wall 204a is formed in the first partition 204 to communicate the space 203 and the space 207,
And a second partition wall hole (205a) is formed in the second partition wall (205) to communicate space 1 (206) and space 2 (207).

The method of claim 3,
A resonator 203c surrounds a portion of the exhaust gas outlet pipe 203 where the exhaust gas outlet pipe 203b is formed and a resonance space formed between the resonator 203c and the exhaust gas outlet pipe 203 is connected to a resonator- (203d) is filled.

The method of claim 3,
And the condensed water is discharged to the outlet of the exhaust gas outlet pipe (203) and also serves as a condensed water discharge pipe.