CN108590813A - A kind of environmental protection sound deadening device - Google Patents
A kind of environmental protection sound deadening device Download PDFInfo
- Publication number
- CN108590813A CN108590813A CN201810346630.2A CN201810346630A CN108590813A CN 108590813 A CN108590813 A CN 108590813A CN 201810346630 A CN201810346630 A CN 201810346630A CN 108590813 A CN108590813 A CN 108590813A
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- Prior art keywords
- shell
- puigging
- thermal insulation
- insulation layer
- photo
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- 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.)
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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
- 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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/24—Silencing apparatus characterised by method of silencing by using 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
- 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
- F01N13/14—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 having thermal insulation
- F01N13/148—Multiple layers of insulating material
-
- 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
-
- 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
- F01N3/022—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
-
- 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
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0892—Electric or magnetic treatment, e.g. dissociation of noxious components
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
The present invention provides a kind of environmental protection sound deadening device,Belong to muffler field,It is in cellular shell including side,The upper end of shell is equipped with air inlet,The lower end of shell is equipped with gas outlet,The lateral wall of shell is equipped with the first puigging,First thermal insulation layer,Second puigging,Second thermal insulation layer,The first cavity is equipped between first puigging and first thermal insulation layer,The second cavity is equipped between first thermal insulation layer and the second puigging,Third cavity is equipped between second puigging and second thermal insulation layer,Expanded perlite is filled in third cavity,The madial wall of shell, which is equipped with, multiple tilting downwards falls grey baffle,It falls on grey baffle and is equipped with dust attachment convex body,It falls between grey baffle and mutually staggers and parallel,It is adjacent to fall between grey baffle equipped with filtering dust net,The active carbon filter for being located at and falling below grey baffle is equipped in shell,Bamboo charcoal filter,Photocatalyst filter device；The present invention has the advantages that noise reduction, purification air and heat-insulated.
Description
Technical field：
The invention belongs to muffler fields, and in particular to a kind of environmental protection sound deadening device.
Background technology：
Muffler, which is one kind, can effectively prevent sound transmission, but its internal structure can allow air-flow by a kind of device
Tool, muffler are typically mounted on small mechanical equipment, such as water pump, internal combustion engine generator, air compressor machine and air blower, muffler one
As be fixed on the outside of equipment, generated gas is then exhausted from ambient enviroment by noise reduction processing in muffler chamber body in equipment
In, play good erasure effect.
Muffler used by existing internal combustion engine generator is all upper and lower structures, big caused by the gasoline by burning
It measures exhaust gas to be discharged by suppressor lumen, sound is effectively completely cut off in discharge process.
But this structure is relatively simple, a large amount of pernicious gases is contained in the gas of discharge, if be directly discharged to
Ambient enviroment can be polluted in air.
In addition, the emission problem of many internal combustion engine generators is not well solved always, meanwhile, existing muffler gas
Body can be directly entered, and high-temperature gas collects inside muffler makes muffler surface temperature drastically increase, excessively high temperature meeting
Adjacent parts are damaged, its premature damage is made, and are also easy to touch in operation to cause to scald.
Invention content：
The purpose of the present invention is providing a kind of environmental protection sound deadening device in view of the above problems, which, which has, disappears
Sound, purification air and heat-insulated advantage.
Above-mentioned purpose is realized by following technical scheme：
A kind of environmental protection sound deadening device, including side are in cellular shell, and the upper end of shell is equipped with air inlet, the lower end of shell
Equipped with gas outlet, on the lateral wall of shell according to be equipped with successively to the direction outside shell out of shell the first puigging, first every
Thermosphere, the second puigging, second thermal insulation layer are equipped with the first cavity, first thermal insulation layer between the first puigging and first thermal insulation layer
And second be equipped with the second cavity between puigging, and third cavity, the first sound insulation are equipped between the second puigging and second thermal insulation layer
The inside of layer is filled with polyester fiber acoustical cotton, and the inside of the second puigging is filled with glass fibre cotton, first thermal insulation layer it is interior
Portion is filled with expanded and vitrified small ball, and the inside of second thermal insulation layer is filled with aeroge, expanded perlite is filled in third cavity,
Be equipped with successively in accordance with the order from top to bottom on the madial wall of shell it is multiple it is tilting downwards fall grey baffle, fall on grey baffle and be all provided with
There is dust to adhere to convex body, fall between grey baffle and mutually stagger and parallel, adjacent fall between grey baffle is equipped with filtering dust net, in shell
It is equipped with successively in accordance with the order from top to bottom positioned at the active carbon filter, bamboo charcoal filter, photocatalyst mistake fallen below grey baffle
Filter device.
Preferably, the bamboo charcoal filter includes the hollow plywood for carrying air admission hole, with leachy spherical container and company
Fitting, the spherical container are mounted on by connector in the hollow plywood, and bamboo charcoal particle is filled in the spherical container.
Preferably, the photocatalyst filter device includes the first photo-catalytic filtering screen, the second photo-catalytic filtering screen, third light
Catalyst filter screen, the first light group and the second light group, first photo-catalytic filtering screen, second photo-catalytic filtering screen,
The third photo-catalytic filtering screen is successively set in accordance with the order from top to bottom on the madial wall of the shell, first lamp
Light group is arranged between first photo-catalytic filtering screen and second photo-catalytic filtering screen, and the second light group setting exists
Between second photo-catalytic filtering screen and the third photo-catalytic filtering screen.
Preferably, the side of the shell be equipped with controller, the first light group, the second light group respectively with
The controller is mutually electrically connected.
Preferably, the quantity for falling grey baffle is six.
Compared with prior art, beneficial effects of the present invention：
1. on the lateral wall of middle casing of the present invention according to out of shell to the direction outside shell successively be equipped with the first puigging,
First thermal insulation layer, the second puigging, second thermal insulation layer, the inside of the first puigging are filled with polyester fiber acoustical cotton, second every
The inside of sound-absorbing layer is filled with glass fibre cotton, and the inside of first thermal insulation layer is filled with expanded and vitrified small ball, second thermal insulation layer it is interior
Portion is filled with aeroge, and the first puigging and the second puigging, which is arranged, can prevent the propagation of sound, and the first puigging and the
Two puiggings are alternately arranged setting and can further improve erasure effect；First thermal insulation layer and second thermal insulation layer is arranged can be with
Heat is prevented to conduct to the outer surface of shell, and the setting that is alternately arranged of first thermal insulation layer and second thermal insulation layer can be further
Improve heat insulation.
2. the first cavity, first thermal insulation layer and the second sound insulation are equipped in the present invention between the first puigging and first thermal insulation layer
It is equipped with the second cavity between layer, third cavity is equipped between the second puigging and second thermal insulation layer, is filled in third cavity swollen
Swollen perlite, the design can improve noise reduction and the heat insulation of muffler.
3. being equipped with successively in accordance with the order from top to bottom on the madial wall of middle casing of the present invention and multiple tilting downwards falling ash
Baffle falls on grey baffle and is equipped with dust attachment convex body, falls between grey baffle and mutually staggers and parallel, gas can be slowed down by falling grey baffle
The flowing velocity of body so that time of the gas in muffler lengthens, and improves the noise reduction of muffler, heat-insulated and purification air effect
Fruit.
4. adjacent fall is equipped with filtering dust net between grey baffle in the present invention, filtering dust net can be filtered tentatively in gas
The big dust of particle, impurity.
5. being equipped with the activated carbon mistake for being located at and falling below grey baffle in middle casing of the present invention successively in accordance with the order from top to bottom
Filter, bamboo charcoal filter, photocatalyst filter device, active carbon filter can clean, deodorization, remove peculiar smell and purification air；Bamboo
Carbon filter can purify air, remove peculiar smell and antibacterial；Photocatalyst filter device can kill bacterium, deodorization, anti-pollution, purification sky
Gas etc..
6. heretofore described bamboo charcoal filter includes hollow plywood with air admission hole, with leachy spherical container and
Connector, the spherical container are mounted on by connector in the hollow plywood, and bamboo charcoal is filled in the spherical container
Grain, gas enters in spherical container can be by bamboo charcoal purification.
7. heretofore described photocatalyst filter device includes the first photo-catalytic filtering screen, the second photo-catalytic filtering screen, the
Three photo-catalytic filtering screens, the first light group and the second light group, first photo-catalytic filtering screen, second photocatalyst filter
Net, the third photo-catalytic filtering screen are successively set in accordance with the order from top to bottom on the madial wall of the shell, and described
One light group is arranged between first photo-catalytic filtering screen and second photo-catalytic filtering screen, and the second light group is set
It sets between second photo-catalytic filtering screen and the third photo-catalytic filtering screen, three layers of photo-catalytic filtering screen significantly improve
Purifying property of the muffler to gas.
8. the side of heretofore described shell is equipped with controller, the first light group, the second light component
It is not electrically connected mutually with the controller, controller controls the working condition of the first light group and the second light group, simple operation.
9. the heretofore described quantity for falling grey baffle is six, greater number of to fall grey baffle and improve muffler
Gather the ability of dust.
Description of the drawings：
Attached drawing is used for providing further understanding the present invention, and a part for constitution instruction, the implementation with the present invention
Example is used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structural diagram of the present invention；
Reference numeral：1, shell；2, air inlet；3, gas outlet；4, the first puigging；5, first thermal insulation layer；6, second every
Sound-absorbing layer；7, second thermal insulation layer；8, the first cavity；9, the second cavity；10, third cavity；11, grey baffle is fallen；12, dust attachment is convex
Body；13, filtering dust net；14, active carbon filter；15, bamboo charcoal filter；151, hollow plywood；152, spherical container；153、
Connector；16, photocatalyst filter device；161, the first photo-catalytic filtering screen；162, the second photo-catalytic filtering screen；163, third light
Catalyst filter screen；164, the first light group；165, the second light group；17, controller.
Specific implementation mode：
As shown in Figure 1, a kind of environmental protection sound deadening device, including side are in cellular shell 1, the upper end of shell 1 is equipped with air inlet
The lower end of mouth 2, shell 1 is equipped with gas outlet 3.
On the lateral wall of shell 1 according to be equipped with successively to the direction outside shell 1 out of shell 1 first puigging 4, first every
The inside of thermosphere 5, the second puigging 6, second thermal insulation layer 7, the first puigging 4 is filled with polyester fiber acoustical cotton, the second sound insulation
The inside of layer 6 is filled with glass fibre cotton, and the inside of first thermal insulation layer 5 is filled with expanded and vitrified small ball, second thermal insulation layer 7 it is interior
Portion is filled with aeroge, and the first puigging 4 and the second puigging 6, which is arranged, can prevent the propagation of sound, and 4 He of the first puigging
Second puigging 6 is alternately arranged setting and can further improve erasure effect；First thermal insulation layer 5 and second thermal insulation layer are set
7 can prevent heat from conducting to the outer surface of shell 1, and the setting that is alternately arranged of first thermal insulation layer 5 and second thermal insulation layer 7 can be with
It is further to improve heat insulation.
Be equipped with the first cavity 8 between first puigging 4 and first thermal insulation layer 5, first thermal insulation layer 5 and the second puigging 6 it
Between be equipped with the second cavity 9, third cavity 10 is equipped between the second puigging 6 and second thermal insulation layer 7, is filled in third cavity 10
Expanded perlite, the design can improve noise reduction and the heat insulation of muffler.
Be equipped with successively in accordance with the order from top to bottom on the madial wall of shell 1 it is multiple it is tilting downwards fall grey baffle 11, fall
It is equipped with dust attachment convex body 12 on grey baffle 11, falls between grey baffle 11 and mutually staggers and parallel, falling grey baffle 11 can slow down
The flowing velocity of gas so that time of the gas in muffler lengthens, and improves the noise reduction, heat-insulated and purification air of muffler
Effect.
Adjacent fall between grey baffle 11 can tentatively filter particle in gas equipped with filtering dust net 13, filtering dust net 13
Big dust, impurity.
Be equipped with successively in accordance with the order from top to bottom in shell 1 be located at the active carbon filter 14 for falling the lower section of grey baffle 11,
Bamboo charcoal filter 15, photocatalyst filter device 16, active carbon filter 14 can clean, deodorization, remove peculiar smell and purification air；Bamboo
Carbon filter 15 can purify air, remove peculiar smell and antibacterial；Photocatalyst filter device 16 can kill bacterium, deodorization, anti-pollution, net
Change air etc..
Bamboo charcoal filter 15 includes the hollow plywood 151 for carrying air admission hole, with leachy spherical container 152 and connector
153, spherical container 152 is mounted on by connector 153 in hollow plywood 151, and bamboo charcoal particle is filled in spherical container 152,
Gas enters in spherical container 152 can be by bamboo charcoal purification.
Photocatalyst filter device 16 is touched including the first photo-catalytic filtering screen 161, the second photo-catalytic filtering screen 162, third light
Matchmaker's filter screen 163, the first light group 164 and the second light group 165, the first photo-catalytic filtering screen 161, the second photo-catalytic filtering screen
162, third photo-catalytic filtering screen 163 is successively set in accordance with the order from top to bottom on the madial wall of shell 1, the first light group
164 are arranged between the first photo-catalytic filtering screen 161 and the second photo-catalytic filtering screen 162, and the second light group 165 is arranged second
Between photo-catalytic filtering screen 162 and third photo-catalytic filtering screen 163, three layers of photo-catalytic filtering screen significantly improve muffler to gas
The purifying property of body.
The side of shell 1 be equipped with controller 17, the first light group 164, the second light group 165 respectively with 17 phase of controller
It is electrically connected, controller 17 controls the working condition of the first light group 164 and the second light group 165, simple operation.
The quantity for falling grey baffle 11 is six, and the greater number of grey baffle 11 that falls can improve the dust that gathers of muffler
Ability.
The technical means disclosed in the embodiments of the present invention is not limited to the technical means disclosed in the above technical means, and further includes
The technical solution being made of the above technical characteristic equivalent replacement.The unaccomplished matter of the present invention, belongs to those skilled in the art's
Common knowledge.
Claims (5)
1. a kind of environmental protection sound deadening device, including side are in cellular shell, the upper end of shell is equipped with air inlet, and the lower end of shell is set
There is gas outlet, it is characterised in that：It is equipped with the first sound insulation successively to the direction outside shell according to out of shell on the lateral wall of shell
Layer, first thermal insulation layer, the second puigging, second thermal insulation layer are equipped with the first cavity between the first puigging and first thermal insulation layer, the
It is equipped with the second cavity between one thermal insulation layer and the second puigging, third cavity is equipped between the second puigging and second thermal insulation layer,
The inside of first puigging is filled with polyester fiber acoustical cotton, and the inside of the second puigging is filled with glass fibre cotton, first every
The inside of thermosphere is filled with expanded and vitrified small ball, and the inside of second thermal insulation layer is filled with aeroge, is filled in third cavity swollen
Swollen perlite, be equipped with successively in accordance with the order from top to bottom on the madial wall of shell it is multiple it is tilting downwards fall grey baffle, fall ash
It is equipped with dust attachment convex body on baffle, falls between grey baffle and mutually staggers and parallel, adjacent fall between grey baffle is equipped with dust mistake
Strainer, is equipped in shell to be located at and falls active carbon filter below grey baffle, bamboo charcoal filtering successively in accordance with the order from top to bottom
Device, photocatalyst filter device.
2. environmental protection sound deadening device according to claim 1, it is characterised in that：The bamboo charcoal filter includes carrying air admission hole
Hollow plywood, with leachy spherical container and connector, the spherical container is mounted on the hollow plywood by connector
It is interior, bamboo charcoal particle is filled in the spherical container.
3. environmental protection sound deadening device according to claim 1, it is characterised in that：The photocatalyst filter device is touched including the first light
Matchmaker's filter screen, the second photo-catalytic filtering screen, third photo-catalytic filtering screen, the first light group and the second light group, first light
Catalyst filter screen, second photo-catalytic filtering screen, the third photo-catalytic filtering screen are set successively in accordance with the order from top to bottom
It sets on the madial wall of the shell, the first light group setting is touched in first photo-catalytic filtering screen and second light
Between matchmaker's filter screen, the second light group setting second photo-catalytic filtering screen and the third photo-catalytic filtering screen it
Between.
4. environmental protection sound deadening device according to claim 3, it is characterised in that：The side of the shell is equipped with controller, institute
State the first light group, the second light group is mutually electrically connected with the controller respectively.
5. environmental protection sound deadening device according to claim 1, it is characterised in that：The quantity for falling grey baffle is six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810346630.2A CN108590813A (en) | 2018-04-18 | 2018-04-18 | A kind of environmental protection sound deadening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810346630.2A CN108590813A (en) | 2018-04-18 | 2018-04-18 | A kind of environmental protection sound deadening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108590813A true CN108590813A (en) | 2018-09-28 |
Family
ID=63613454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810346630.2A Pending CN108590813A (en) | 2018-04-18 | 2018-04-18 | A kind of environmental protection sound deadening device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108590813A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109941208A (en) * | 2019-04-25 | 2019-06-28 | 张家港润盛科技材料有限公司 | A kind of heat-insulated noise reduction aluminium cover of automobile engine |
| CN110821601A (en) * | 2019-10-28 | 2020-02-21 | 曹喜平 | Agricultural tractor chimney noise removal device |
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| CN107165699A (en) * | 2017-06-01 | 2017-09-15 | 江苏法瑞德专用汽车有限公司 | A kind of automobile exhaust and silencing means |
| CN107060958A (en) * | 2017-06-16 | 2017-08-18 | 福州明旭环保科技有限公司 | A kind of eco-friendly car exhaust gas cleaner |
| CN208138022U (en) * | 2018-04-18 | 2018-11-23 | 江苏中伟机械制造有限公司 | A kind of environmental protection sound deadening device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109941208A (en) * | 2019-04-25 | 2019-06-28 | 张家港润盛科技材料有限公司 | A kind of heat-insulated noise reduction aluminium cover of automobile engine |
| CN110821601A (en) * | 2019-10-28 | 2020-02-21 | 曹喜平 | Agricultural tractor chimney noise removal device |
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