CN114439576A - Noise elimination structure and car - Google Patents
Noise elimination structure and car Download PDFInfo
- Publication number
- CN114439576A CN114439576A CN202210007540.7A CN202210007540A CN114439576A CN 114439576 A CN114439576 A CN 114439576A CN 202210007540 A CN202210007540 A CN 202210007540A CN 114439576 A CN114439576 A CN 114439576A
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- Prior art keywords
- air inlet
- exhaust
- connecting pipe
- pipe
- channel
- Prior art date
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Links
- 230000008030 elimination Effects 0.000 title claims description 21
- 238000003379 elimination reaction Methods 0.000 title claims description 21
- 230000030279 gene silencing Effects 0.000 claims abstract description 29
- 230000003584 silencer Effects 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 238000003780 insertion Methods 0.000 claims description 17
- 230000037431 insertion Effects 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- JHJNPOSPVGRIAN-SFHVURJKSA-N n-[3-[(1s)-1-[[6-(3,4-dimethoxyphenyl)pyrazin-2-yl]amino]ethyl]phenyl]-5-methylpyridine-3-carboxamide Chemical compound C1=C(OC)C(OC)=CC=C1C1=CN=CC(N[C@@H](C)C=2C=C(NC(=O)C=3C=C(C)C=NC=3)C=CC=2)=N1 JHJNPOSPVGRIAN-SFHVURJKSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
- F01N13/1844—Mechanical joints
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a silencing structure and an automobile, wherein the silencing structure comprises a main silencer and an air inlet pipe, a silencing channel is formed on the main silencer, an air inlet communicated with the silencing channel is formed in the side wall of the silencing channel in a penetrating mode, an exhaust channel is formed in the air inlet pipe, the air inlet pipe penetrates through the air inlet to be provided with an exhaust section extending into the silencing channel, a plurality of exhaust holes are formed in the side wall of the exhaust section in a penetrating mode, and the exhaust holes are distributed at intervals so that gas in the air inlet pipe can be exhausted into the silencing channel through the exhaust holes. Through penetrating the side wall of the exhaust section and arranging the exhaust holes, the gas in the air inlet pipe is dispersedly exhausted into the silencing channel from the exhaust holes, the concentrated ejection of high-temperature gas towards the inner side wall of the main silencer is avoided, and the problem that the local position of the main silencer is obviously discolored due to the fact that the high-temperature gas flow is exhausted into the inner wall surface of the shell of the main silencer in the conventional silencing structure is solved.
Description
Technical Field
The invention relates to the field of motor vehicles, in particular to a noise elimination structure and an automobile.
Background
Due to the distribution attribute characteristics among parts in an automobile, an air inlet inserted connecting pipe in the main muffler shell directly points to the wall surface of the main muffler shell, engine exhaust gas enters the main muffler shell along a pipeline of an exhaust system and then is directly sprayed onto the wall surface of the main muffler shell, high-temperature airflow enables the main muffler shell to perform chemical reaction, the crystal structure and thickness change in an oxide film on the surface of the material generate a color change phenomenon under photorefractive, a customer stops and observes that the local position of the main muffler shell obviously changes color and blackens, and the design of the muffler is unreasonable and complaint.
Disclosure of Invention
The invention mainly aims to provide a noise elimination structure and an automobile, and aims to solve the problem that the local position of a main muffler is obviously discolored due to the fact that high-temperature air flow is discharged into the inner wall surface of a shell of the main muffler in the conventional noise elimination structure.
In order to achieve the above object, the present invention provides a sound-deadening structure, wherein the sound-deadening structure includes:
the main muffler is provided with a muffling channel, and the side wall of the muffling channel is provided with an air inlet communicated with the muffling channel in a penetrating manner;
the air inlet pipe is formed with an exhaust passage, penetrates through the air inlet and is provided with an exhaust section extending into the noise elimination passage;
the side wall of the exhaust section is provided with a plurality of exhaust holes in a penetrating manner, and the exhaust holes are distributed at intervals so that gas in the air inlet pipe is exhausted into the silencing channel through the exhaust holes.
Optionally, the sum of the areas of the plurality of exhaust holes is equal to or larger than the largest cross-sectional area of the exhaust passage in the exhaust section.
Optionally, a pipe orifice communicated with the exhaust passage is formed in one end, facing the exhaust passage, of the exhaust section, and an end cover covers the pipe orifice.
Optionally, the air inlet pipe includes a connecting pipe and an inner inserting connecting pipe which are sleeved with each other, the inner inserting connecting pipe is located inside the silencing passage, the connecting pipe is located outside the silencing passage, a plurality of exhaust holes are formed in the side wall of the inner inserting connecting pipe in a penetrating manner, and the inner inserting connecting pipe forms the exhaust section.
Optionally, the inner insertion connecting pipe is sleeved on the outer periphery of the connecting pipe;
the main muffler is provided with a flanging part extending outwards along the edge of the air inlet, and the flanging part is annularly arranged on the outer peripheral side of the inserted connecting pipe.
Optionally, the flanging part is welded with the inner insertion connecting pipe.
Optionally, the sound attenuation structure further includes a reinforcing plate, the reinforcing plate is annularly disposed on the outer peripheral side of the inner insertion connecting pipe, the reinforcing plate includes a first connecting portion and a second connecting portion, the first connecting portion is connected to the flanged portion, and the second connecting portion is connected to the outer side wall of the main muffler.
Optionally, the reinforcing plate includes that connect gradually and be the contained angle setting each other first connecting portion, support the section with the second connecting portion, turn over portion support the section with the lateral wall of main muffler encloses jointly and closes the cavity that forms the cross-section and be triangle-shaped.
Optionally, the first connecting part is welded with the flanging part; and/or the presence of a gas in the gas,
the second connecting part is welded with the outer side wall of the main silencer.
The invention also provides an automobile, which comprises the silencing structure, wherein the silencing structure comprises:
the main muffler is provided with a muffling channel, and the side wall of the muffling channel is provided with an air inlet communicated with the muffling channel in a penetrating manner;
the air inlet pipe is formed with an exhaust passage, penetrates through the air inlet and is provided with an exhaust section extending into the noise elimination passage;
the side wall of the exhaust section is provided with a plurality of exhaust holes in a penetrating manner, and the exhaust holes are distributed at intervals so that gas in the air inlet pipe is exhausted into the silencing channel through the exhaust holes.
According to the technical scheme, the silencing structure comprises a main silencer and an air inlet pipe, a silencing channel is formed in the main silencer, an air inlet communicated with the silencing channel is formed in the side wall of the silencing channel in a penetrating mode, an air outlet channel is formed in the air inlet pipe, the air inlet pipe penetrates through the air inlet to be provided with an air outlet section extending into the silencing channel, a plurality of air outlet holes are formed in the side wall of the air outlet section in a penetrating mode, and the air outlet holes are distributed at intervals, so that air in the air inlet pipe is exhausted into the silencing channel through the air outlet holes. Through penetrating the side wall of the exhaust section and arranging the exhaust holes, the gas in the air inlet pipe is dispersedly exhausted into the silencing channel from the exhaust holes, the concentrated ejection of high-temperature gas towards the inner side wall of the main silencer is avoided, and the problem that the local position of the main silencer is obviously discolored due to the fact that the high-temperature gas flow is exhausted into the inner wall surface of the shell of the main silencer in the conventional silencing structure is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic internal cross-sectional view of a prior art muffling structure;
FIG. 2 is a partial schematic view of FIG. 1;
FIG. 3 is an exploded view of an embodiment of the sound attenuating structure provided by the present invention;
FIG. 4 is a schematic cross-sectional view of the sound attenuating structure of FIG. 3;
fig. 5 is a perspective view of the junction of the main muffler and the intake pipe in fig. 3.
The reference numbers illustrate:
| reference numerals | Name(s) | Reference numerals | Name (R) |
| 100 | |
2a | Connecting |
| 1 | |
2b | Internally inserted connecting |
| 11 | |
3 | |
| 12 | |
4 | Reinforcing plate |
| 1a | |
41 | First connecting |
| 2 | |
42 | Second connecting |
| 21 | |
43 | |
| 211 | Air vent |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Because of the property characteristics of arrangement among various parts in the automobile, please refer to fig. 1, an air inlet inserted connection pipe in the main muffler shell directly points to the wall surface of the main muffler shell, engine exhaust gas enters the main muffler shell along a pipeline of an exhaust system and then is directly sprayed onto the wall surface of the main muffler shell, high-temperature air flow enables the main muffler shell to perform chemical reaction, the crystal structure and thickness change in an oxide film on the surface of the material generate a color change phenomenon under light refraction, a customer stops the automobile and observes that the local position of the main muffler shell obviously changes color and blackens, and the design of the muffler is judged to be unreasonable, so that the customer complains.
In order to solve the above problems, the present invention provides a sound attenuation structure 100, and fig. 3 to 5 show an embodiment of the sound attenuation structure 100 provided by the present invention.
Referring to fig. 3 to 5, the noise elimination structure 100 includes a main muffler 1 and an air inlet pipe 2, the main muffler 1 is formed with a noise elimination channel 11, an air inlet 12 communicated with the noise elimination channel 11 is disposed through a side wall of the noise elimination channel 11, the air inlet pipe 2 is formed with an air exhaust channel, the air inlet pipe 2 is disposed through the air inlet 12 to have an air exhaust section 21 extending into the noise elimination channel 11, wherein a plurality of air exhaust holes 211 are disposed through a side wall of the air exhaust section 21, and the air exhaust holes 211 are distributed at intervals, so that air in the air inlet pipe 2 is exhausted into the noise elimination channel 11 through the air exhaust holes 211.
In the technical scheme provided by the invention, a noise elimination structure 100 comprises a main muffler 1 and an air inlet pipe 2, wherein a noise elimination channel 11 is formed on the main muffler 1, an air inlet 12 communicated with the noise elimination channel 11 is arranged on the side wall of the noise elimination channel 11 in a penetrating manner, an air exhaust channel is formed on the air inlet pipe 2, the air inlet pipe 2 is arranged in the air inlet 12 in a penetrating manner so as to be provided with an air exhaust section 21 extending into the noise elimination channel 11, a plurality of air exhaust holes 211 are arranged on the side wall of the air exhaust section 21 in a penetrating manner, and the air exhaust holes 211 are distributed at intervals so that air in the air inlet pipe 2 is exhausted into the noise elimination channel 11 through the air exhaust holes 211. Through the plurality of exhaust holes 211 arranged through the side wall of the exhaust section 21, the gas in the gas inlet pipe 2 is discharged into the silencing channel 11 from each exhaust hole 211 in a dispersed manner, so that the high-temperature gas is prevented from being intensively sprayed towards the inner side wall of the main silencer 1, and the problem that the local position of the main silencer 1 is obviously discolored due to the fact that the high-temperature gas flow is discharged into the inner wall surface of the shell of the main silencer 1 in the conventional silencing structure 100 is solved.
Further, in order to avoid negative effects of high fuel consumption of the whole vehicle, poor torque accuracy of an accelerated engine, weak acceleration and the like caused by too high exhaust back pressure of the main muffler 1, in this embodiment, the sum of the areas of the exhaust holes 211 is greater than or equal to the maximum cross-sectional area of the exhaust passage in the exhaust section 21.
Specifically, in order to prevent the high-temperature gas from being ejected along with the pipe orifice of the exhaust section 21, the pipe orifice of the exhaust section 21 is a blocking setting, in this embodiment, the pipe orifice communicated with the exhaust channel is opened towards one end in the exhaust channel of the exhaust section 21, the end cover 3 is arranged at the pipe orifice, the pipe orifice is arranged at the two ends of the pipe orifice because the air inlet pipe 2 is tubular, and the pipe orifice is arranged at the pipe orifice, so that the high-temperature gas is discharged from each exhaust hole 211 by arranging the blocked end cover 3 at the pipe orifice.
Further, for convenience of processing, in this embodiment, the air inlet pipe 2 includes a connecting pipe 2a and an inner inserting connecting pipe 2b that are sleeved with each other, the inner inserting connecting pipe 2b is located inside the silencing passage 11, the connecting pipe 2a is located outside the silencing passage 11, a plurality of exhaust holes 211 are formed through a side wall of the inner inserting connecting pipe 2b, the inner inserting connecting pipe 2b forms the exhaust section 21, since a plurality of exhaust holes 211 need to be punched on the air inlet pipe 2 in the processing process, for convenience of processing and punching, the air inlet pipe 2 is too long and inconvenient to process, by arranging the connecting pipe 2a and the inner inserting connecting pipe 2b that are sleeved with each other, after each exhaust hole 211 needs to be punched on the inner inserting connecting pipe 2b, the inner inserting connecting pipe 2b and the connecting pipe 2a are sleeved together, the air intake tube 2 may be formed and the inner insertion connection tube 2b may be connected to the connection tube 2a by welding.
In addition, referring to fig. 2, the conventional exhaust main muffler has the following structure and problems: the main muffler outer reinforcing plate, the air inlet connecting pipe, the main muffler shell and the air inlet inserting connecting pipe are connected through carbon dioxide protection welding after being positioned by the aid of the tool. The structure can not effectively disperse the stress transmitted from the direction of the vehicle head to the double-layer 0.6mm main silencer shell, and the probability main silencer outer reinforcing plate and the main silencer are cracked and broken after-sale faults under the limit working condition.
Further, because the intake pipe 2 is inserted into the main muffler 1, in order to avoid the intake pipe 2 from shaking and a gap air leakage exists between the intake pipe 2 and the main muffler 1, in this embodiment, the inner insertion connecting pipe 2b is sleeved on the outer peripheral side of the connecting pipe 2a, the main muffler 1 extends outwards along the edge of the intake port 12 to form a flange portion 1a, and the flange portion 1a is annularly arranged on the outer peripheral side of the inner insertion connecting pipe 2b, so that the flange portion 1a and the inner insertion connecting pipe 2b are connected together by the arrangement of the flange portion 1a, and because the connecting area between the flange portion 1a and the inner insertion connecting pipe 2b is large, the firm degree of connection is improved, and the probability of cracking is reduced.
Specifically, in order to ensure the connection firmness of the flange portion 1a and the internal insertion connection pipe 2b, the flange portion 1a and the internal insertion connection pipe 2b may be connected by a bolt and a bolt, or by a thread connection manner in which internal and external threads are respectively formed, in this embodiment, the flange portion 1a and the internal insertion connection pipe 2b are welded, and the airtightness between the flange portion 1a and the internal insertion connection pipe 2b is further ensured by the welding manner.
Further, in order to further improve the firmness between the intake pipe 2 and the main muffler 1, in this embodiment, the sound attenuation structure 100 further includes a reinforcing plate 4, the reinforcing plate 4 is disposed around the outer periphery of the inner insertion connection pipe 2b, the reinforcing plate 4 includes a first connection portion 41 and a second connection portion 42, the first connection portion 41 is connected to the flange portion 1a, the second connection portion 42 is connected to the outer sidewall of the main muffler 1, and the flange portion 1a is more stable in shape and less prone to deformation due to the provision of the reinforcing plate 4, so that the weld between the flange portion 1a and the main muffler 1 can be maintained in a stable state and is less prone to cracking.
Specifically, the reinforcing plate 4 may be various pipe fittings with polygonal cross sections or an annular structure, referring to fig. 4, in this embodiment, the reinforcing plate 4 includes the first connecting portion 41, the supporting section 43, and the second connecting portion 42 which are connected in sequence and arranged at an included angle, and the flanging portion 1a, the supporting section 43, and the outer side wall of the main muffler 1 together enclose a cavity with a triangular cross section. Because the triangle is the most stable, the cavity formed between the outer reinforcing plate 4 of the main muffler 1 and the shell of the main muffler 1 is lengthened through the processes of assembly, tool auxiliary positioning, welding and the like, the length of the welding seam between the outer reinforcing plate 4 of the main muffler 1 and the shell of the main muffler 1 is prolonged, the stress transmitted from an engine to the shell of the main muffler 1 is effectively dispersed, the strength of the air inlet connecting pipe 2a and the shell area of the muffler is ensured, and the after-sales failure rate of fatigue cracking and fracture of the air inlet connecting pipe 2a and the shell of the main muffler 1 is reduced.
Specifically, in the first embodiment, the first connecting portion 41 is welded to the flange portion 1a, and a carbon dioxide-protected weld bead may be used for welding; in the second embodiment, the second connecting portion 42 is welded to the outer side wall of the main muffler 1, and may be welded by spot welding; in the third embodiment, the first connection portion 41 is welded to the flange portion 1a, the second connection portion 42 is welded to the outer side wall of the main muffler 1, and the first connection portion 41 and the flange portion 1a can form a weld joint with the end portion of the reinforcing plate 4, the end portion of the flange portion 1a, and the end portion of the inner insertion connection pipe 2b, so that the welded surfaces are increased, the welding is more stable, and the inner insertion connection pipe is less prone to cracking.
The invention further provides an automobile, which comprises the sound attenuation structure 100, and the concrete structure of the sound attenuation structure 100 refers to the above embodiments, and since the automobile adopts all the technical solutions of all the above embodiments, the automobile at least has all the beneficial effects brought by all the technical solutions of all the above embodiments, and details are not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A sound-deadening structure characterized by comprising:
the main muffler is provided with a muffling channel, and the side wall of the muffling channel is provided with an air inlet communicated with the muffling channel in a penetrating manner;
the air inlet pipe is formed with an exhaust passage, penetrates through the air inlet and is provided with an exhaust section extending into the noise elimination passage;
the side wall of the exhaust section is provided with a plurality of exhaust holes in a penetrating manner, and the exhaust holes are distributed at intervals so that gas in the air inlet pipe is exhausted into the silencing channel through the exhaust holes.
2. The sound-deadening structure according to claim 1, wherein a sum of areas of the plurality of the vent holes is equal to or larger than a maximum cross-sectional area of the vent passage in the vent section.
3. The sound attenuation structure according to claim 1, wherein a pipe orifice communicated with the exhaust passage is formed at one end of the exhaust section facing into the exhaust passage, and an end cover is arranged at the pipe orifice in a covering manner.
4. The muffling structure of claim 2, wherein the air inlet pipe comprises a connecting pipe and an inner inserting connecting pipe, the inner inserting connecting pipe is located inside the muffling channel, the connecting pipe is located outside the muffling channel, a plurality of exhaust holes are formed in a side wall of the inner inserting connecting pipe, and the inner inserting connecting pipe forms the exhaust section.
5. The sound attenuation structure according to claim 4, wherein said inner insertion connecting pipe is fitted around an outer peripheral side of said connecting pipe;
the main muffler is provided with a flanging part extending outwards along the edge of the air inlet, and the flanging part is annularly arranged on the outer peripheral side of the inserted connecting pipe.
6. The sound-attenuating structure of claim 5, wherein the burring is welded to the inner insert connecting tube.
7. The sound-deadening structure according to claim 6, further comprising a reinforcing plate provided around an outer peripheral side of the inner insertion connecting pipe, wherein the reinforcing plate includes a first connecting portion connected to the burring portion and a second connecting portion connected to an outer side wall of the main muffler.
8. The muffling structure of claim 7, wherein the reinforcing plate comprises the first connecting portion, the supporting portion and the second connecting portion, which are sequentially connected and arranged at an included angle with each other, and the flanging portion, the supporting portion and the outer sidewall of the main muffler together enclose a cavity with a triangular cross section.
9. The sound-deadening structure according to claim 7, wherein the first connecting portion is welded to the burring; and/or the presence of a gas in the gas,
the second connecting part is welded with the outer side wall of the main silencer.
10. An automobile, characterized by comprising the sound-deadening structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210007540.7A CN114439576A (en) | 2022-01-05 | 2022-01-05 | Noise elimination structure and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210007540.7A CN114439576A (en) | 2022-01-05 | 2022-01-05 | Noise elimination structure and car |
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| Publication Number | Publication Date |
|---|---|
| CN114439576A true CN114439576A (en) | 2022-05-06 |
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ID=81366328
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210007540.7A Pending CN114439576A (en) | 2022-01-05 | 2022-01-05 | Noise elimination structure and car |
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| Country | Link |
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| CN (1) | CN114439576A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837785A (en) * | 2022-05-27 | 2022-08-02 | 沈阳东宝海星金属材料科技有限公司 | Variable-thickness stainless steel automobile exhaust silencer baffle |
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2022
- 2022-01-05 CN CN202210007540.7A patent/CN114439576A/en active Pending
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|---|---|---|---|---|
| AU4856172A (en) * | 1971-11-04 | 1974-05-09 | Peco Silencers Limited | Improvements in or relating to silencers for exhaust gases |
| DE3436982A1 (en) * | 1984-10-09 | 1986-04-10 | Heidemann-Werke GmbH & Co KG, 3352 Einbeck | Exhaust pipe for an internal combustion engine |
| CN203130210U (en) * | 2012-12-27 | 2013-08-14 | 郑州精益达汽车零部件有限公司 | Selective catalysis silencer for diesel engine |
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| Title |
|---|
| 中国石油天然气集团公司人事服务中心: "《电焊工》", 东营：中国石油大学出版社, pages: 248 - 249 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837785A (en) * | 2022-05-27 | 2022-08-02 | 沈阳东宝海星金属材料科技有限公司 | Variable-thickness stainless steel automobile exhaust silencer baffle |
| CN114837785B (en) * | 2022-05-27 | 2023-12-29 | 沈阳东宝海星金属材料科技有限公司 | Variable-thickness stainless steel automobile exhaust silencer baffle plate |
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