CN210858895U - Silencer and automobile exhaust system comprising same - Google Patents

Silencer and automobile exhaust system comprising same Download PDF

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Publication number
CN210858895U
CN210858895U CN201922146331.7U CN201922146331U CN210858895U CN 210858895 U CN210858895 U CN 210858895U CN 201922146331 U CN201922146331 U CN 201922146331U CN 210858895 U CN210858895 U CN 210858895U
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CN
China
Prior art keywords
outlet
muffler
air outlet
pipe
air
Prior art date
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Expired - Fee Related
Application number
CN201922146331.7U
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Chinese (zh)
Inventor
曾飞云
尹可
戚超
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Faurecia Emissions Control Technologies Development Shanghai Co Ltd
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Faurecia Emissions Control Technologies Development Shanghai Co Ltd
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Priority to CN201922146331.7U priority Critical patent/CN210858895U/en
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Expired - Fee Related legal-status Critical Current
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Abstract

The utility model provides a silencer and an automobile exhaust system comprising the same, wherein the silencer comprises a silencer shell; the two first air outlet pipelines are respectively arranged at two sides of the silencer shell and are communicated with the inside of the silencer shell and the outside of the silencer shell; the multi-way internal assembly comprises an air inlet pipeline and an air outlet pipe assembly, one end of the air inlet pipeline penetrates out of the silencer shell, and the air outlet pipe assembly is arranged on two sides of the other end of the air inlet pipeline and communicated with the other end of the air inlet pipeline; the air outlet pipe assembly is provided with two second air outlet pipelines and a plurality of third air outlet pipelines, the tail ends of the second air outlet pipelines are respectively communicated with the outside of two sides of the silencer shell, the tail ends of the third air outlet pipelines are communicated with the inside of the silencer shell, and the second air outlet pipelines are provided with electric control valves. The utility model discloses a structure of leading to more can reduce the sound of lower frequency (for example be less than 100HZ), keeps the sound of higher frequency (for example 200HZ-500HZ), satisfies that the user is required to the subjective impression of motion sound wave mode.

Description

Silencer and automobile exhaust system comprising same
Technical Field
The utility model relates to an automobile exhaust silencer field, in particular to silencer reaches automobile exhaust system including it.
Background
In the prior art, an automobile muffler is mainly used for reducing noise generated when an engine of a motor vehicle works, and the principle of the automobile muffler is that the volume of a muffler cavity and the arrangement of an internal pipeline are utilized to improve the acoustic impedance of an exhaust system so as to achieve the purpose of muffling.
Most of the existing automobile exhaust systems only have a silencing function, and a small part of refitted exhaust manufacturers can provide silencers with the function of realizing moving sound waves. However, the quality of the modified exhaust sound cannot be guaranteed, the sound loudness is often too high to exceed the regulation requirement, which causes people to be disturbed, or the booming sound is serious to cause extreme discomfort of passengers in the vehicle, which affects the driving safety.
In view of the above, those skilled in the art have improved the structure of the muffler, and change the sound path through the electronic control valve to realize that one set of exhaust system can provide two functions of muffling and moving sound waves, and meanwhile, adopt a special muffler internal pipe layout design to improve the sound quality of the moving sound waves, in order to overcome the above technical problems.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a silencer and including its automobile exhaust system in order to overcome the defect that two kinds of modes can't be realized simultaneously to the silencer in the prior art.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
a muffler, characterized in that it comprises:
a muffler housing;
the two first air outlet pipelines are respectively arranged at two sides of the silencer shell and respectively communicated with the inside of the silencer shell and the outside of the silencer shell;
the multi-way internal assembly comprises an air inlet pipeline and an air outlet pipeline assembly, one end of the air inlet pipeline penetrates out of the silencer shell, and the air outlet pipeline assemblies are arranged on two sides of the other end of the air inlet pipeline and communicated with the other end of the air inlet pipeline;
the air outlet pipe assembly is provided with two second air outlet pipelines and a plurality of third air outlet pipelines, the tail ends of the second air outlet pipelines are respectively communicated with the outside of two sides of the silencer shell, the tail ends of the third air outlet pipelines are communicated with the inside of the silencer shell, and the second air outlet pipelines are provided with electric control valves for distributing sound and gas flow under two modes.
According to the utility model discloses an embodiment, the silencer still includes a plurality of baffles, the baffle is fixed in the silencer casing, just first pipeline of giving vent to anger the second pipeline of giving vent to anger with the third pipeline of giving vent to anger wears to establish respectively and corresponds in the baffle.
According to the utility model discloses an embodiment, the outlet pipe subassembly includes two third outlet pipe way, the medial extremity of third outlet pipe way with inlet pipe's the other end intercommunication.
According to the utility model discloses an embodiment, the second give vent to anger the medial extremity of pipeline with the other end intercommunication of admission line, just the third is given vent to anger the pipeline and is located the second is given vent to anger the below of pipeline, and is parallel to each other.
According to an embodiment of the present invention, an inner end of the second gas outlet pipe is communicated with the other end of the gas inlet pipe, and one of the second gas outlet pipes and one of the third gas outlet pipes are located on the same horizontal plane, forming a group of pipe assemblies;
the other second air outlet pipeline and the other third air outlet pipeline are positioned on the same horizontal plane to form another group of pipeline assemblies; the two sets of pipe assemblies are parallel to each other.
According to the utility model discloses an embodiment, two first pipeline of giving vent to anger is located lead to the below of inside subassembly more, and be parallel to each other.
According to the utility model discloses an embodiment, two first pipeline of giving vent to anger is located lead to the top of inside subassembly more, and be parallel to each other.
According to the utility model discloses an embodiment, the outlet pipe subassembly includes two third outlet pipe, the medial extremity of third outlet pipe with correspond the second outlet pipe intercommunication forms the bypass pipe structure.
According to the utility model discloses an embodiment, the third pipeline of giving vent to anger is arc or L type.
According to the utility model discloses an embodiment, the medial extremity of first pipeline of giving vent to anger is connected with an return bend, the outside end of return bend is worn to establish on the baffle.
According to the utility model discloses an embodiment, the outlet pipe subassembly includes four third outlet pipe, the medial extremity of third outlet pipe with inlet pipe's the other end intercommunication.
According to the utility model discloses an embodiment, a plurality of trompils have been seted up on the baffle.
The utility model also provides an automobile exhaust system, its characterized in that, automobile exhaust system includes as above the silencer.
The utility model discloses an actively advance the effect and lie in:
the utility model discloses silencer and including its automobile exhaust system have following a great deal of advantage:
firstly, a multi-pass structure is adopted, so that the sound with lower frequency (for example, less than 100HZ) can be reduced, the sound with higher frequency (for example, 200HZ-500HZ) can be kept, and the requirement of a user on subjective feeling of a sports sound wave mode is met;
secondly, the voice and the gas flow can be conveniently distributed between the two modes by matching with an electric valve;
and thirdly, after the electric valve is opened, the back pressure of an exhaust system is reduced, and the performance of the engine is effectively improved.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which like reference numerals refer to like features throughout, and in which:
fig. 1 is a perspective view of a muffler according to a first embodiment of the present invention.
Fig. 2 is a schematic diagram of an internal structure of a muffler according to a first embodiment of the present invention.
Fig. 3 is a schematic diagram of an internal structure of a muffler according to a first embodiment of the present invention.
Fig. 4 is a schematic diagram of the internal structure of a second embodiment of the muffler of the present invention.
Fig. 5 is a schematic diagram of the internal structure of a second embodiment of the muffler of the present invention.
Fig. 6 is a schematic diagram of the internal structure of a third embodiment of the muffler of the present invention.
Fig. 7 is a schematic diagram of the internal structure of a third embodiment of the muffler of the present invention.
Fig. 8 is a schematic diagram of the internal structure of a fourth embodiment of the muffler of the present invention.
[ reference numerals ]
Muffler shell 10
First outlet duct 20
Bend pipe 21
Manifold inner assembly 30
Air inlet duct 31
One end 311 of the inlet duct
The other end 312 of the intake conduit
Second outlet pipe 32
Third outlet pipe 33
Electrically controlled valve 40
Partition 50
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
Further, although the terms used in the present invention are selected from publicly known and used terms, some of the terms mentioned in the description of the present invention may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein.
Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.
Fig. 1 is a perspective view of a muffler according to a first embodiment of the present invention. Fig. 2 is a schematic diagram of an internal structure of a muffler according to a first embodiment of the present invention. Fig. 3 is a schematic diagram of an internal structure of a muffler according to a first embodiment of the present invention.
As shown in fig. 1 to 3, the present invention discloses a muffler, which comprises a muffler shell 10, two first outlet pipes 20 and a multi-way inner assembly 30. Wherein, the first outlet pipes 20 are respectively arranged at both sides of the muffler shell 10, respectively communicating the inside of the muffler shell 10 and the outside of the muffler shell 10. Two first outlet ducts 20 are located below the multipass inner assembly and are parallel to each other.
In this embodiment, the multi-pass internal assembly 30 includes an air inlet pipe 31 and an air outlet pipe assembly, wherein one end 311 of the air inlet pipe 31 penetrates through the muffler shell 10, and the air outlet pipe assembly is arranged on both sides of the other end 312 of the air inlet pipe 31 and is communicated with the other end 312 of the air inlet pipe 31.
The outlet pipe assembly has two second outlet pipes 32 and a plurality of third outlet pipes 33, the ends of the second outlet pipes 32 are respectively communicated with the outside of both sides of the muffler shell 10, the ends of the third outlet pipes 33 are communicated with the inside of the muffler shell 10, and the second outlet pipes 32 are provided with electric control valves 40 for distributing sound and gas flow in two modes.
Preferably, the muffler further includes a plurality of partition plates 50, the partition plates 50 are fixed in the muffler shell 10, and the first outlet pipe 20, the second outlet pipe 32, and the third outlet pipe 33 are respectively inserted into the corresponding partition plates 50.
In addition, the partition plate 50 is provided with a plurality of openings, which is helpful for guiding the air flow, so that the air flow can more smoothly and uniformly pass through the silencer.
In this embodiment, the outlet pipe assembly includes two third outlet pipes 33, and the inner ends of the third outlet pipes 33 are communicated with the other end 312 of the inlet pipe 31. The inner end of the second outlet pipe 32 communicates with the other end 312 of the inlet pipe 31, and the third outlet pipes 33 are located below the second outlet pipe 32 and parallel to each other.
Of course, in the structure of the muffler in this embodiment, the outlet pipe assembly may also be configured to include four third outlet pipes 33, and the inner ends of the third outlet pipes 33 are communicated with the other end 312 of the inlet pipe 31.
The number of the third outlet pipes 33 is only an example, and the present invention is not limited by the embodiment, and is within the protection scope of the present invention.
The utility model also provides an automobile exhaust system, it includes as above the silencer.
According to the above description of the structure, in the muffler of the present embodiment, the inlet pipe 31 is connected to the upstream pipe of the external exhaust system, and the first outlet pipe 20 is two outlet pipes for guiding the gas out of the muffler when the gas enters the muffler.
The second outlet conduit 32 is connected to an electrically controlled valve 40 for distributing sound and gas flow. When electronically controlled valve 40 is open, most of the engine's acoustic, air flow will pass through second outlet conduit 32 due to the lower back pressure downstream of second outlet conduit 32 than third outlet conduit 33. At this time, the volume of third outlet duct 33 matching the muffler will act as a helmholtz resonator, aiming at reducing the frequency. Therefore, the volume effect of the silencer is weak, and the sound pressure level and the engine sound loudness of the silencer are enhanced at higher frequency (200 Hz-500 Hz). Therefore, the user's subjective perception of the movement pattern will be more apparent.
When electronically controlled valve 40 is closed, no air flow and engine sound can pass through second outlet duct 32, and both can enter the muffler through third outlet duct 33. Thus, the structure inside the muffler will work more efficiently to reduce the sound of the engine.
Various parameters of third outlet pipe 33 (e.g., length, diameter, or perforations), as well as the internal structure of the muffler, may be adjusted based on the actual boundary and acoustic requirements. But a multi-channel structure (e.g., a five-channel structure in the present embodiment) is always present, and the shape may of course be changed as needed.
To sum up, the utility model discloses silencer and including its automobile exhaust system have following a great deal of advantage:
firstly, a multi-pass structure is adopted, so that the sound with lower frequency (for example, less than 100HZ) can be reduced, the sound with higher frequency (for example, 200HZ-500HZ) can be kept, and the requirement of a user on subjective feeling of a sports sound wave mode is met;
secondly, the voice and the gas flow can be conveniently distributed between the two modes by matching with an electric valve;
and thirdly, after the electric valve is opened, the back pressure of an exhaust system is reduced, and the performance of the engine is effectively improved.
Example two:
fig. 4 is a schematic diagram of the internal structure of a second embodiment of the muffler of the present invention. Fig. 5 is a schematic diagram of the internal structure of a second embodiment of the muffler of the present invention.
As shown in fig. 4 and 5, the structure of the present embodiment is substantially the same as that of the first embodiment, except that: in this embodiment, the inner ends of the second outlet pipes 32 are communicated with the other end 312 of the inlet pipe 31, and one of the second outlet pipes 32 and one of the third outlet pipes 33 are located on the same horizontal plane, so as to form a group of pipe assemblies. Another second outlet pipe 32 is located at the same level as another third outlet pipe 33 to form another set of pipe assemblies. The two groups of pipeline components are arranged in parallel up and down.
Meanwhile, in the present embodiment, the two first air outlet pipes 20 may be disposed below the multi-way inner assembly and parallel to each other. Or two first outlet tubes 20 may be arranged above the manifold internal assembly and parallel to each other.
Example three:
fig. 6 is a schematic diagram of the internal structure of a third embodiment of the muffler of the present invention. Fig. 7 is a schematic diagram of the internal structure of a third embodiment of the muffler of the present invention.
As shown in fig. 6 and 7, the structure of the present embodiment is substantially the same as that of the first embodiment, except that: in this embodiment, the air outlet pipe assembly includes two third air outlet pipes 33, and the inner ends of the third air outlet pipes 33 are communicated with the corresponding second air outlet pipes 32 to form a bypass pipe structure.
Here, third outlet pipe 33 is preferably arc-shaped or L-shaped. Of course, the shape of third outlet pipe 33 is not limited by the above examples, as long as it forms a bypass pipe structure with second outlet pipe 32, which is only an example, and other shapes are within the scope of the present invention.
Furthermore, the inner end of the first outlet pipe 20 is further connected to an elbow 21, and the outer end of the elbow 21 is inserted into the partition 50.
Example four:
fig. 8 is a schematic diagram of the internal structure of a fourth embodiment of the muffler of the present invention.
As shown in fig. 8, the structure of the present embodiment is substantially the same as that of the first embodiment, except that: in this embodiment, the two first outlet pipes 20 may also be disposed above the multi-way internal assembly and parallel to each other.
To sum up, the utility model discloses the silencer is through adopting to lead to the cooperation of inner assembly and electric control valve more, can realize the sound mode of two kinds of differences, leads to the inner assembly more and can provide the engine sound of higher frequency, suppresses the sound of booming for the user is better to the subjective impression of motion pattern.
When the electrically controlled valve is opened, sound and gas mainly pass through the second outlet duct and the muffler operates in a kinetic mode. When the electrically controlled valve is closed, all sound and gas will pass through the third outlet duct and the muffler operates in comfort mode.
When the electric control valve is opened, the third air outlet pipeline works in cooperation with the sound volume of all the silencers, such as Helmholtz, so that the frequency is reduced (<100Hz), the sound volume effect of the silencers is reduced as much as possible, and the exhaust sound is increased. When the electrically controlled valve is closed, the third outlet duct acts as a normal passage for sound and gas to pass through, and all of the muffler volume can be used to reduce engine noise.
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are all within the scope of the invention.

Claims (13)

1. A muffler, characterized in that the muffler comprises:
a muffler housing;
the two first air outlet pipelines are respectively arranged at two sides of the silencer shell and respectively communicated with the inside of the silencer shell and the outside of the silencer shell;
the multi-way internal assembly comprises an air inlet pipeline and an air outlet pipeline assembly, one end of the air inlet pipeline penetrates out of the silencer shell, and the air outlet pipeline assemblies are arranged on two sides of the other end of the air inlet pipeline and communicated with the other end of the air inlet pipeline;
the air outlet pipe assembly is provided with two second air outlet pipelines and a plurality of third air outlet pipelines, the tail ends of the second air outlet pipelines are respectively communicated with the outside of two sides of the silencer shell, the tail ends of the third air outlet pipelines are communicated with the inside of the silencer shell, and the second air outlet pipelines are provided with electric control valves for distributing sound and gas flow under two modes.
2. The muffler of claim 1, further comprising a plurality of baffles fixed within the muffler housing, wherein the first outlet duct, the second outlet duct, and the third outlet duct are each disposed through a respective one of the baffles.
3. The muffler of claim 1, wherein the outlet pipe assembly comprises two third outlet pipes, and inner ends of the third outlet pipes communicate with the other ends of the inlet pipes.
4. The muffler of claim 3, wherein an inner end of the second outlet pipe communicates with the other end of the inlet pipe, and the third outlet pipes are positioned below the second outlet pipe and parallel to each other.
5. The muffler of claim 3, wherein an inner end of the second outlet pipe communicates with the other end of the inlet pipe, and wherein one of the second outlet pipes and one of the third outlet pipes are located at the same horizontal plane to form a stack of pipe assemblies;
the other second air outlet pipeline and the other third air outlet pipeline are positioned on the same horizontal plane to form another group of pipeline assemblies; the two sets of pipe assemblies are parallel to each other.
6. The muffler of claim 4, wherein two of the first outlet conduits are positioned below the manifold inner assembly and are parallel to each other.
7. The muffler of claim 4, wherein two of the first outlet conduits are positioned above the manifold inner assembly and are parallel to each other.
8. The muffler of claim 1, wherein the outlet pipe assembly comprises two third outlet pipes, and inner ends of the third outlet pipes are communicated with the corresponding second outlet pipes to form a bypass pipe structure.
9. The muffler of claim 6, wherein the third outlet duct is arcuate or L-shaped.
10. The muffler of claim 2, wherein an elbow is connected to an inner end of the first outlet duct, and an outer end of the elbow is disposed through the baffle.
11. The muffler of claim 1, wherein the outlet pipe assembly comprises four third outlet pipes, an inner end of the third outlet pipes communicating with the other end of the inlet pipe.
12. The muffler of claim 2, wherein the baffle defines a plurality of openings.
13. An automotive exhaust system, characterized in that it comprises a muffler according to any one of claims 1 to 12.
CN201922146331.7U 2019-12-04 2019-12-04 Silencer and automobile exhaust system comprising same Expired - Fee Related CN210858895U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922146331.7U CN210858895U (en) 2019-12-04 2019-12-04 Silencer and automobile exhaust system comprising same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922146331.7U CN210858895U (en) 2019-12-04 2019-12-04 Silencer and automobile exhaust system comprising same

Publications (1)

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CN210858895U true CN210858895U (en) 2020-06-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113482754A (en) * 2021-07-30 2021-10-08 重庆长安汽车股份有限公司 Noise eliminator and vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113482754A (en) * 2021-07-30 2021-10-08 重庆长安汽车股份有限公司 Noise eliminator and vehicle

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Granted publication date: 20200626