CN107882614A - A kind of multistage noise-reducing structure for beach buggy - Google Patents
A kind of multistage noise-reducing structure for beach buggy Download PDFInfo
- Publication number
- CN107882614A CN107882614A CN201711156405.4A CN201711156405A CN107882614A CN 107882614 A CN107882614 A CN 107882614A CN 201711156405 A CN201711156405 A CN 201711156405A CN 107882614 A CN107882614 A CN 107882614A
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- reduction layer
- level
- filtration net
- muffler shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
-
- 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
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/0335—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with exhaust silencers in a single housing
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
A kind of multistage noise-reducing structure for beach buggy, including air inlet pipe, escape pipe and muffler shell, beach buggy multistage noise-reducing structure also includes branched separator tube, air-flow dispersion plate, by-pass filtration net, secondary filtration net, one-level noise reduction layer and two level noise reduction layer, branched separator tube include some separator tubes of curved end and array arrangement, and separator tube is set to one with curved end；Air inlet pipe stretches into muffler shell one end and connected with curved end, and escape pipe stretches out the muffler shell other end；Air-flow dispersion plate is fixed on air inlet pipe and curved end junction；By-pass filtration net is provided with branched separator tube；Buffering tube end presses close to one-level noise reduction layer, and one-level noise reduction layer is interference fitted with muffler shell, and two level noise reduction layer forms cavity with one-level noise reduction layer, and two level noise reduction layer is interference fitted with muffler shell；Secondary filtration net is provided with close to escape pipe, secondary filtration net is pressed in muffler shell.The present invention realizes plays purification and processing effect to tail gas while multistage noise reduction.
Description
Technical field
The present invention relates to automobile-use muffler technical field, more particularly to a kind of multistage noise reduction knot for beach buggy
Structure.
Background technology
Muffler is a kind of device for preventing sound transmission and allowing air-flow to pass through, and is the weight for eliminating air power noise
Want measure.Muffler is mounted in air powered equipment (such as air blower, air compressor machine, boiler exhaust mouth, generator, water pump row
The larger equipment of gas port noise) gas channel on or inlet and exhaust system in reduction noise device.
Problems be present in existing motor vehicle (present invention is directed to beach buggy) muffler：On the one hand, existing muffler
Internal structure has very big resistance to exhaust, and exhaust is easily obstructed, and reduces effective delivery efficiency of engine；On the other hand,
The noise-reducing structure of existing muffler is relatively simple, and majority is not using single-stage or the sound attenuation features of single tube, its erasure effect
It is highly desirable；Another further aspect.Its inside of existing muffler does not also set more rational device for purifying and treating tail gas mostly, to air
Certain pollution can be caused.
The content of the invention
The technical problems to be solved by the invention are：It is smaller to provide a kind of exhaust resistance, realizes that multistage noise reduction and energy are net
Change the multistage noise-reducing structure for beach buggy of processing tail gas.
The present invention is that technical scheme is used by solving the above problems：A kind of multistage noise-reducing structure for beach buggy,
Including air inlet pipe, escape pipe and muffler shell, the multistage noise-reducing structure also include branched separator tube, air-flow dispersion plate,
By-pass filtration net, secondary filtration net, one-level noise reduction layer and two level noise reduction layer, the branched separator tube include arc port and array
Some separator tubes of arrangement, the separator tube are set to one with the arc port；The air inlet pipe stretches into the muffler shell
Body one end simultaneously connects with the arc port, and the escape pipe stretches out the muffler shell other end；The air-flow dispersion plate
It is fixed on the air inlet pipe and arc port junction；The by-pass filtration net is provided with the branched separator tube；It is described
Buffering tube end presses close to the one-level noise reduction layer, and the one-level noise reduction layer is interference fitted with the muffler shell, the two level
Noise reduction layer forms cavity with the one-level noise reduction layer, and the two level noise reduction layer is interference fitted with the muffler shell；Close to institute
State escape pipe and be provided with the secondary filtration net, the secondary filtration net is pressed in the muffler shell.
Using the technique effect of above technical scheme, air-flow dispersion plate can spread and buffer gas flow, improves disappearing for muffler
Audio fruit, play one-level sound deadening；The setting of screen pack is to tail gas clean-up and processing, effectively reduces dirt of the tail gas to air
Dye；Branched buffering pipe outer wall is provided with multiple cushion holes, and the air-flow of process can rub therewith, so as to play buffering and noise reduction
Effect, here branched separator tube play two level sound deadening；One-level noise reduction layer and two level noise reduction layer play three-level noise reduction to air-flow
Effect, so as to further improve the erasure effect of muffler.
Preferably, the by-pass filtration net through the muffler shell outer wall and is pushed against in the arc port inner wall,
The by-pass filtration net is connected to an one-level for being snapped in the muffler shell outer wall and changes inserted block；The secondary filtration net passes through
The muffler shell outer wall is simultaneously pushed against in the muffler shell inwall, and the secondary filtration net is connected to one and is snapped in described disappear
The two level of sound device housing exterior walls changes block；The by-pass filtration net and secondary filtration net are vertical with the muffler shell to be set
Put.
Using the technique effect of above technical scheme, screen pack connects as one with changing inserted block, in use, can pass through
Take out replacing inserted block and take screen pack out of, facilitate cleaning replacement screen pack, improve the service life of screen pack, ensure that muffler is held
The function of continuous cleaning of off-gas；Screen pack is vertically installed in sound attenuation, can guarantee that the tail gas passed through fully contacted with screen pack,
Reaction, improve its purification and treatment effect.
Preferably, the one-level pipe filter screen is equipped with tail-gas catalyst, and the secondary filtration net is equipped with activated carbon adsorption layer.
Using the technique effect of above technical scheme, tail-gas catalyst can react with tail gas, with being harmful in tail gas
Substance reaction decompose and produce harmless material, activated carbon adsorption layer is the larger solid particle in absorption tail gas, so as to rise
To the effect for purifying and handling tail gas.
Preferably, the buffering pipe outer wall is equipped with multiple cushion holes, and it is small that the buffering bore ends are provided with multiple noise reductions
Hole.
Using the technique effect of above technical scheme, cushion hole is the work that buffering and friction drop energy are played to the air-flow passed through
With playing erasure effect；Air-flow further noise reduction of the noise reduction aperture of end to passing through.
Preferably, the one-level noise reduction layer is vertically arranged with two level noise reduction layer with the muffler shell, the one-level
Some blast pipes are provided between noise reduction layer and two level noise reduction layer, the blast pipe sequentially passes through the one-level noise reduction layer and two level and disappeared
Sound-absorbing layer, the blast pipe air inlet are corresponding with the buffering tube end.
Using the technique effect of above technical scheme, noise reduction layer is vertically installed in muffler shell, it is ensured that erasure effect；Row
Air pipe outlet correspondingly buffers tube end, and guide functions are played to air-flow, effectively reduce exhaust resistance.
Preferably, the blast pipe is vertically arranged with the one-level noise reduction layer and two level noise reduction layer, and the blast pipe goes out
Gas port is correspondingly arranged with the secondary filtration net.
Using the technique effect of above technical scheme, blast pipe is arranged at same level with muffler passage, it is ensured that suitable
Smooth exhaust, improves the exhaust capacity of its blast pipe, reduces its exhaust resistance, improve the delivery efficiency of engine.
Preferably, the sound attenuation inwall closely posts acoustical cotton.
Using the technique effect of above technical scheme, sound attenuation sets silencing cotton to have sound deadening to air-flow.
Compared with prior art, the advantage of the invention is that：On the one hand, separator tube is provided with branched and array and arranged, to gas
Stream plays a part of dispersed effect, improves the effect effect of muffler；On the other hand, air-flow dispersion plate, branched separator tube
And noise reduction layer collectively form multistage noise-reducing structure, the effect effect of muffler is further effectively improved；Another further aspect, filtering
The setting of net is played a part of purifying and handled to tail gas, effectively reduces pollution of the tail gas to air.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.
Fig. 1 is a kind of structural representation of multistage noise-reducing structure for beach buggy of the invention；
Fig. 2 is a kind of structural representation of the separator tube end cross-sectional of multistage noise-reducing structure for beach buggy of the invention；
Description of symbols in figure：1st, air inlet pipe, 2, air-flow dispersion plate, 3, curved end, 4, one-level change inserted block, 5, one-level mistake
Filter screen, 6, muffler shell, 7, separator tube, 8, cushion hole, 9, acoustical cotton, 10, noise reduction aperture, 11, one-level noise reduction layer, 12, row
Tracheae, 13, two level noise reduction layer, 14, secondary filtration net, 15, two level change inserted block, 16, escape pipe.
Embodiment
Embodiments of the present invention are described in detail below in conjunction with drawings and Examples, and thereby how the present invention is applied
Technological means can fully understand and implement according to this to solve technical problem and reach the implementation process of technical effect.
The specific embodiment of the present invention as shown in Figure 1-2, a kind of multistage noise-reducing structure for beach buggy, including air inlet pipe
1, escape pipe 16 and muffler shell 6, beach buggy Multistage muffler also include branched separator tube, air-flow dispersion plate 2, one-level mistake
Filter screen 5, secondary filtration net 14, one-level noise reduction layer 11 and two level noise reduction layer 13, branched separator tube includes curved end 3 and array is arranged
Some separator tubes 8 of cloth, washing pipe are provided with branched and array and arranged, and play a part of dispersed effect to air-flow, improve noise reduction
The effect effect of device, while curved end plays a diffusion and reduction of speed effect to air-flow, is easy to noise reduction；Separator tube 8 and arc tips
Portion 3 is set to one；Ensure sealing between this two structure, prevent that air-flow is exposed, influence noise reduction.
In the present embodiment, air inlet pipe 1 stretches into the one end of muffler shell 6 and connected with curved end 3, and escape pipe 16, which stretches out, to disappear
The other end of sound device housing 6；Air-flow dispersion plate 2 is fixed on air inlet pipe 1 and the junction of curved end 3；One is provided with branched separator tube
Level screen pack 5；One-level noise reduction layer 11 is pressed close in the end of separator tube 7, and one-level noise reduction layer 11 is interference fitted with muffler shell 6, two level
Noise reduction layer 13 forms cavity with one-level noise reduction layer 11, and two level noise reduction layer 13 is interference fitted with muffler shell 6；Close to escape pipe 16
Provided with secondary filtration net 14, secondary filtration net 14 is pressed in muffler shell 6.The setting of screen pack is to tail gas clean-up and place
Reason, effectively reduce pollution of the tail gas to air；Branched buffering pipe outer wall is provided with multiple cushion holes, and the air-flow of process can occur therewith
Friction, so as to play the effect of buffering and noise reduction, branched separator tube plays two level sound deadening here；One-level noise reduction layer and two level
Noise reduction layer plays three-level sound deadening to air-flow, so as to further improve the erasure effect of muffler.
In the present embodiment, by-pass filtration net 5 is through the outer wall of muffler shell 6 and pushes against in the inwall of curved end 3, one-level mistake
Filter screen 5 is connected to an one-level for being snapped in the outer wall of muffler shell 6 and changes inserted block 4；Secondary filtration net 14 is passed through outside muffler shell 6
Wall is simultaneously pushed against in the inwall of muffler shell 6, and secondary filtration net 14 is connected to a two level for being snapped in the outer wall of muffler shell 6 and more inserted
15 pieces；By-pass filtration net 5 and secondary filtration net 14 are vertically arranged with muffler shell 6.Screen pack is connected as with changing inserted block
One, in use, by taking out replacing inserted block out of screen pack can be taken, facilitate cleaning replacement screen pack, improve making for screen pack
With the life-span, ensure that muffler has the function of continuing purge tail gas；Screen pack is vertically installed in sound attenuation, can guarantee that what is passed through
Tail gas is fully contacted with screen pack, reacted, and improves its purification and treatment effect.
In the present embodiment, one-level pipe filter screen 5 is equipped with tail-gas catalyst, and secondary filtration net 14 is equipped with activated carbon adsorption layer.Gas
Catalyst can react with tail gas, and the substance reaction with being harmful in tail gas, which decomposes, produces harmless material, charcoal absorption
Layer is the larger solid particle in absorption tail gas, so as to play a part of purifying and handle tail gas.
In the present embodiment, the outer wall of separator tube 7 is equipped with multiple cushion holes 7, and the end of separator tube 7 is provided with multiple noise reduction apertures
10, cushion hole is the drop energy that plays a part of buffering to the air-flow passed through and rub, and plays erasure effect；The noise reduction aperture pair of end
The further noise reduction of air-flow passed through.
In the present embodiment, one-level noise reduction layer 11 is vertically arranged with two level noise reduction layer 13 with muffler shell 6, one-level noise reduction
Some blast pipes 12 are provided between layer 11 and two level noise reduction layer 13, blast pipe 12 sequentially passes through one-level noise reduction layer 11 and two level disappears
Sound-absorbing layer 13, the air inlet of blast pipe 12 are corresponding with the end of separator tube 7.Noise reduction layer is vertically installed in muffler shell, it is ensured that noise reduction is imitated
Fruit；Blast pipe gas outlet correspondingly buffers tube end, and guide functions are played to air-flow, effectively reduce exhaust resistance.
In the present embodiment, blast pipe 7 is vertically arranged with one-level noise reduction layer 11 and two level noise reduction layer 13, the outlet of blast pipe 12
Mouth is correspondingly arranged with secondary filtration net 14.In addition, the inwall of sound attenuation 6 closely posts acoustical cotton 9.Blast pipe and muffler passage
It is arranged at same level, it is ensured that smooth exhaust, improve the exhaust capacity of its blast pipe, reduce its exhaust resistance, raising is started
The delivery efficiency of machine.Meanwhile sound attenuation sets silencing cotton to have sound deadening to air-flow.
The air inlet pipe of beach buggy Multistage muffler of the present invention is passed through flexible pipe and sandy beach by the use process of the present invention, user
The tail gas comb of car is connected, and can be used after stable connection.
The beneficial effects of the invention are as follows：One side is dispersed to air-flow and carries out multistage noise reduction, and its erasure effect is more preferably；
On the other hand replaceable filter screen structure is provided with, is convenient for changing and uses, ensure that muffler has the function of continuing purge tail gas；
Simultaneously the blast pipe of internal installation can water conservancy diversion air-flow, reduce exhaust resistance, improve the delivery efficiency of engine.
Only highly preferred embodiment of the present invention is described above, but is not to be construed as limiting the scope of the invention.This
Invention is not only limited to above example, and its concrete structure allows to change.All protection models in independent claims of the present invention
Interior made various change is enclosed to all fall in the scope of protection of the present invention.
Claims (7)
1. a kind of multistage noise-reducing structure for beach buggy, including air inlet pipe (1), escape pipe (1) and muffler shell (6),
It is characterized in that：The multistage noise-reducing structure also includes branched separator tube, air-flow dispersion plate (2), by-pass filtration net (5), two level
Screen pack (14), one-level noise reduction layer (11) and two level noise reduction layer (13), the branched separator tube include curved end (3) and array
Some separator tubes (7) of arrangement, the separator tube (7) are set to one with the curved end (3)；The air inlet pipe (1) is stretched into
Described muffler shell (6) one end simultaneously connects with the curved end (3), and the escape pipe (16) stretches out the muffler shell
(6) other end；The air-flow dispersion plate (2) is fixed on the air inlet pipe (1) and the curved end (3) junction；It is described more
The by-pass filtration net (5) is provided with branch separator tube；The one-level noise reduction layer (11) is pressed close in separator tube (7) end, described
One-level noise reduction layer (11) is interference fitted with the muffler shell (6), the two level noise reduction layer (13) and the one-level noise reduction layer
(11) cavity is formed, the two level noise reduction layer (13) is interference fitted with the muffler shell (6)；Close to the escape pipe (16)
Provided with the secondary filtration net (14), the secondary filtration net (14) is pressed in the muffler shell (6).
A kind of 2. multistage noise-reducing structure for beach buggy according to claim 1, it is characterised in that：The by-pass filtration
Net (5) passes through the muffler shell (6) outer wall and pushed against and connect in the curved end (3) inwall, the by-pass filtration net (5)
There is an one-level for being snapped in the muffler shell (6) outer wall to change inserted block (4)；The secondary filtration net (14) disappears through described
Sound device housing (6) outer wall simultaneously pushes against and is connected to one in the muffler shell (6) inwall, the secondary filtration net (14) and is snapped in institute
The two level for stating muffler shell (6) outer wall changes inserted block (15)；The by-pass filtration net (5) and secondary filtration net (14) are and institute
Muffler shell (6) is stated to be vertically arranged.
A kind of 3. multistage noise-reducing structure for beach buggy according to claim 2, it is characterised in that：The one-level pipe filter
Net (5) is equipped with tail-gas catalyst, and the secondary filtration net (14) is equipped with activated carbon adsorption layer.
A kind of 4. multistage noise-reducing structure for beach buggy according to claim 1, it is characterised in that：The separator tube
(7) outer wall is equipped with multiple cushion holes (7), and separator tube (7) end is provided with multiple noise reduction apertures (10).
A kind of 5. multistage noise-reducing structure for beach buggy according to claim 1, it is characterised in that：The one-level noise reduction
Layer (11) is vertically arranged with two level noise reduction layer (13) with the muffler shell (6), and the one-level noise reduction layer 11 disappears with two level
Some blast pipes (12) are provided between sound-absorbing layer (13), the blast pipe (12) sequentially passes through the one-level noise reduction layer (11) and two level
Noise reduction layer (13), blast pipe (12) air inlet are corresponding with the separator tube (7) end.
A kind of 6. multistage noise-reducing structure for beach buggy according to claim 5, it is characterised in that：The blast pipe
(7) be vertically arranged with the one-level noise reduction layer (11) and two level noise reduction layer (13), blast pipe (12) gas outlet with it is described
Secondary filtration net (14) is correspondingly arranged.
A kind of 7. multistage noise-reducing structure for beach buggy according to claim 1, it is characterised in that：The sound attenuation
(6) inwall closely posts acoustical cotton (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711156405.4A CN107882614A (en) | 2017-11-20 | 2017-11-20 | A kind of multistage noise-reducing structure for beach buggy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711156405.4A CN107882614A (en) | 2017-11-20 | 2017-11-20 | A kind of multistage noise-reducing structure for beach buggy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882614A true CN107882614A (en) | 2018-04-06 |
Family
ID=61778192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711156405.4A Pending CN107882614A (en) | 2017-11-20 | 2017-11-20 | A kind of multistage noise-reducing structure for beach buggy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882614A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042896A (en) * | 2019-12-18 | 2020-04-21 | 魏志帅 | Tuning silencer for automobile exhaust pipe |
| CN113217339A (en) * | 2021-05-27 | 2021-08-06 | 莆田市斯凡登电子商务有限公司 | Silencing equipment for air pressure system |
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| KR20020000367A (en) * | 2000-06-23 | 2002-01-05 | 김정곤 | Silencer |
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| CN205422884U (en) * | 2016-03-30 | 2016-08-03 | 黄鹏程 | Automobile silencer |
| CN205477835U (en) * | 2016-04-12 | 2016-08-17 | 浙江方宏空调设备有限公司 | Multi -level buffer formula muffler |
| CN105909342A (en) * | 2016-06-01 | 2016-08-31 | 陈焕祥 | Silencing equipment for internal combustion engine exhaust pipe |
| CN106285883A (en) * | 2016-08-31 | 2017-01-04 | 芜湖恒耀汽车零部件有限公司 | Noise reduction automobile exhaust pipe |
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2017
- 2017-11-20 CN CN201711156405.4A patent/CN107882614A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020000367A (en) * | 2000-06-23 | 2002-01-05 | 김정곤 | Silencer |
| CN201554533U (en) * | 2009-11-25 | 2010-08-18 | 王婧琦 | Easily cleaned exhaust pipe with functions of dust absorption, environment protection and sound insulation |
| CN204961020U (en) * | 2015-08-31 | 2016-01-13 | 嘉兴职业技术学院 | Automobile silencer |
| CN205422884U (en) * | 2016-03-30 | 2016-08-03 | 黄鹏程 | Automobile silencer |
| CN205477835U (en) * | 2016-04-12 | 2016-08-17 | 浙江方宏空调设备有限公司 | Multi -level buffer formula muffler |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042896A (en) * | 2019-12-18 | 2020-04-21 | 魏志帅 | Tuning silencer for automobile exhaust pipe |
| CN113217339A (en) * | 2021-05-27 | 2021-08-06 | 莆田市斯凡登电子商务有限公司 | Silencing equipment for air pressure system |
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Application publication date: 20180406 |