CN106285873A - A kind of multi-functional lobby device of air for electromotor and electromotor - Google Patents
A kind of multi-functional lobby device of air for electromotor and electromotor Download PDFInfo
- Publication number
- CN106285873A CN106285873A CN201610723128.XA CN201610723128A CN106285873A CN 106285873 A CN106285873 A CN 106285873A CN 201610723128 A CN201610723128 A CN 201610723128A CN 106285873 A CN106285873 A CN 106285873A
- Authority
- CN
- China
- Prior art keywords
- working chamber
- electromotor
- purifying
- catalyst
- air
- 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
- 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
-
- 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
- F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
-
- 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
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of multi-functional lobby device of air for electromotor and electromotor, this exhaust apparatus includes housing, described housing central section is fixed with catalyst for purifying, working chamber is divided into the first working chamber and the second working chamber and own as intermediate working chamber by described catalyst for purifying, it is provided with exhaustor in described first working chamber, it is provided with escape pipe in described second working chamber, the gas flow area of described first working chamber is more than the gas flow area of exhaustor, airflow area in described catalyst for purifying is less than the first working chamber and the second working chamber, the gas flow area of described second working chamber is more than the gas flow area of escape pipe, form expanding noise-reducing structure.Above-mentioned exhaust apparatus is not only simple in structure, compact, and ensure that the compactedness of former engine structure, simultaneously work as purifying aerofluxus and effectively reducing the effect of engine noise.
Description
Technical field
The invention belongs to diesel motor exhaust treatment technology, especially relate to a kind of disappear for having concurrently of Diesel engine
Sound and the exhaust apparatus of purification function and electromotor.
Background technology
The muffler of put-put arranges difformity, different size of pipeline section and resonant cavity by inside mostly
Carry out noise reduction.Increasingly strict along with Abgasgesetz, improves the pollutant in diesel exhaust gas and has become the task of top priority.At present,
It is the row that the exhaust gas purification catalyst converter by electromotor is arranged on electromotor that put-put solves the problem of exhaust contaminant
In trachea or muffler.For meeting the requirement of engine exhaust gas purification, ensureing exhaust gas purification catalyst converter usage amount
On the basis of certainly will cause electromotor and the structure large-scale of muffler exhaustor, complication.
Summary of the invention
It is an object of the invention to provide a kind of multi-functional lobby device of air for electromotor, it has simple in construction, tight
Gathering, operate steadily feature that is reliable and that have noise reduction and purification function concurrently, to solve in prior art at original engine exhaust
Pipe and muffler install the structure large-scale and the problem of complication existed after catalyst converter additional.
Another object of the present invention is to provide a kind of electromotor, it has compact conformation, operates steadily reliable and meet
The feature that engine exhaust gas purification requires, to solve the problems referred to above that in prior art, electromotor exists.
For reaching this purpose, the present invention by the following technical solutions:
A kind of multi-functional lobby device of air for electromotor, it includes housing, is working chamber in described housing, wherein, institute
Stating the catalyst for purifying that is fixedly arranged in the middle of of housing, described working chamber is divided into the first working chamber and second by described catalyst for purifying
Working chamber and own as intermediate working chamber, is provided with exhaustor, sets in described second working chamber in described first working chamber
Being equipped with escape pipe, described catalyst for purifying is densely covered with the pore of parallel distribution in the axial direction, dividing between adjacent two pores
Being coated with catalyst coat on next door, the gas flow area of described first working chamber is more than the gas flow area of exhaustor,
Airflow area in described catalyst for purifying is less than the first working chamber and the second working chamber, the gas of described second working chamber
Circulation area is more than the gas flow area of escape pipe, described exhaustor, the first working chamber, catalyst for purifying, the second working chamber
Expanding noise-reducing structure is formed with escape pipe.
Especially, described exhaustor and escape pipe stretch into and offer several passages on one end of described housing, favorably
In reducing exhaust noise and improving the trafficability performance of gas.
Especially, the outside of described housing is provided with protective cover, is provided with heat insulation between described protective cover and described housing
Silencing cotton.
Especially, one end of described exhaustor is vertically run through described first working chamber and is arranged, its corresponding described purifying and catalyzing
Passage is all offered on the tube wall of device.
Especially, one end of described escape pipe is inserted vertically into housing and arranges, and this end to be positioned at described second working chamber vertical
Insert on the middle part in direction, and described escape pipe and on the tube wall of housing parts, all offer passage.
Especially, one end of described pore is opening, the other end be then arranged to closure face, described closure face and opening in
Every layout, it is distributed in cellular micropore on the partition wall between described adjacent two pores, partition wall is coated with catalysis
Agent coating.
Especially, described catalyst for purifying includes cellular carrier, and surrounding's parcel of described carrier coordinates support shapes
Heat insulation foam, the outer enclosure protection board of described heat insulation foam.
Especially, described housing is made up of upper shell and lower house, the most corresponding on the inwall of described upper shell and lower house
Being provided with two thrust steps, the spacing of said two thrust step coordinates described catalyst for purifying to arrange, described purifying and catalyzing
Device is arranged between upper shell and two thrust steps of lower house, and described upper shell and lower house are welded and fixed connection and will purify
Catalyst converter is fixed in described housing.
A kind of electromotor, it includes cylinder head, fuel tank, air cleaner and exhaust apparatus, described cylinder head
Fuel tank, air cleaner and exhaust apparatus, described air cleaner cloth closely it is connected on periphery connecting end surface
Putting the front end at electromotor, described fuel tank and exhaust apparatus are arranged in the both sides of cylinder head, wherein, described exhaust apparatus
For the above-mentioned multi-functional lobby device of air for electromotor.
Beneficial effects of the present invention is, compared with prior art the described multi-functional lobby device of air for electromotor passes through
The muffler internally installed exhaust gas purification catalyst converter of electromotor, utilizes the construction features of exhaust gas purification catalyst converter itself
And installation site substitutes the difformity within traditional deafener, different size of pipeline section and resonant cavity, and by again
Combination forms a kind of expanding deafener, makes the size shape that the structure holding of motor silencer is original, it is ensured that electromotor
Original simple, attractive in appearance, compact, greatly reduced by the effect of the exhaust gas purification catalyst converter within muffler simultaneously
Engine Emissions thing and particulate material, the expanding deafener reconfiguring formation makes engine noise obtain effectively
Reduction, make electromotor operating more steadily, reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the multi-functional lobby device of air for electromotor that the specific embodiment of the invention 1 provides；
Fig. 2 be in Fig. 1 A-A to profile；
Fig. 3 is the installation diagram of the multi-functional lobby device of air for electromotor that the specific embodiment of the invention 1 provides.
Detailed description of the invention
Further illustrate technical scheme below in conjunction with the accompanying drawings and by detailed description of the invention.
Referring to shown in Fig. 1 to Fig. 3, in the present embodiment, a kind of multi-functional lobby device of air for electromotor includes housing
1, catalyst for purifying 2, exhaustor 3 and escape pipe 4, is working chamber in described housing 1, and on the inwall of described housing 1, interval is arranged
Having two thrust steps 5, the spacing of said two thrust step 5 coordinates catalyst for purifying 2 to arrange, and described catalyst for purifying 2 leads to
Cross two thrust steps 5 to be positioned in described housing 1.Described working chamber is divided into the first working chamber 6 by described catalyst for purifying 2
With the second working chamber 7 and own as intermediate working chamber, described exhaustor 3 inserts described first working chamber 6 and arranges, described in go out
Trachea 4 inserts described second working chamber 7 and arranges.The gas flow area of described first working chamber 6 is more than the gas stream of exhaustor 3
Logical area, the airflow area in described catalyst for purifying 2 is less than the first working chamber 6 and the second working chamber 7, described second work
Make the gas flow area gas flow area more than escape pipe 4 in chamber 7, described exhaustor the 3, first working chamber 6, purifying and catalyzing
Device the 2, second working chamber 7 and escape pipe 4 form expanding noise-reducing structure.
The form that specifically arranges of described exhaustor 3 and escape pipe 4 is: one end of described exhaustor 3 vertically runs through described
One working chamber 6 is arranged, and the tube wall of its corresponding described catalyst for purifying 2 all offers passage 8.One end of described escape pipe 4
It is inserted vertically into housing 1 to arrange, and this end is positioned at the middle part of described second working chamber 7 vertical direction, and insert on described escape pipe 4
Passage 8 is all offered on the tube wall of housing 1 part.Being provided for when tail gas enters exhaustor 3 or escape pipe 4 of passage 8
Time, under the effect of sound wave, the air column in aperture produces vibration, and the frictional damping of pipeline wall produces acoustic resistance so that part
Acoustic energy becomes heat energy and is dissipated, and then makes exhaust noise be reduced.
Described catalyst for purifying 2 includes cellular carrier 9, and surrounding's parcel of described carrier 9 coordinates disappearing of support shapes
Sound heat insulation foam 10, the outer enclosure protection board 11 of described noise reduction heat insulation foam 10, make carrier 9 at protection board 11 and noise reduction heat insulation foam 10
Surround and lower form an independent firm body.The setting of described noise reduction heat insulation foam 10, can effectively inhibit catalyst for purifying 2
The decline of temperature, improves temperature and is conducive to improving the exhaust purifying capability of catalyst for purifying 2, i.e. improve the oxidation of black smoke granule
Burning capacity, improves again the purifying rate of black smoke granule.
Described carrier 9 uses cordierite to be fabricated to ceramic honey comb, at parallel point that is densely covered with that size is less in the axial direction
The pore of cloth, one end of described pore is opening, and the other end is then arranged to closure face, described closure face and opening in interval cloth
Put, be distributed in cellular micropore on the partition wall between described adjacent two pores, partition wall is coated with catalyst and is coated with
Layer.When the aerofluxus of electromotor is by catalyst for purifying 2, main component CO in aerofluxus, HC, NOx pass through to be catalyzed on partition wall
The redox chemistry reaction of agent coating, CO is at high temperature oxidized to colourless nontoxic CO2, HC compound at high temperature resolves into
H2O and CO2, NOx is reduced into N2And O2, simultaneously the carbon soot particles in aerofluxus at the micropore on partition wall by effective mistake
Filter.When delivery temperature reaches 375 DEG C, black smoke granule can progressively burn and aoxidize, when temperature reaches 500 DEG C, catalyst and
Black smoke granule produces reaction, thus is completely burned, and makes the black smoke granule in engine exhaust reach good clean-up effect.
The outside of described housing 1 is provided with protective cover 12, is provided with heat insulation disappearing between described protective cover 12 and described housing 1
Sound cotton 10.To reduce noise, and under the effect of heat insulation silencing cotton 10, effectively inhibit under the internal temperature of exhaust apparatus
Fall, improves internal temperature and is conducive to improving the exhaust purifying capability of catalyst for purifying 2, i.e. improve the oxidizing fire of black smoke granule
Ability, improves again the purifying rate of black smoke granule, and deafener surface temperature have also been obtained well control simultaneously.
Described housing 1 is made up of upper shell 13 and lower house 14, the most right on the inwall of described upper shell 13 and lower house 14
Two thrust steps 5 should be provided with, and described upper shell 13 and lower house 14 are fixedly connected by welding.Two thrust platforms simultaneously
Upper shell 13 and the intensity of lower house 14 can be improved in rank 5.
A kind of electromotor, it includes cylinder head 15, fuel tank 16, air cleaner 17 and exhaust apparatus 18, described
Fuel tank 16, air cleaner 17 and exhaust apparatus 18 closely it is connected on the periphery connecting end surface of cylinder head 15, described
Air cleaner 17 is arranged in the front end of electromotor, and described fuel tank 16 and exhaust apparatus 18 are arranged in cylinder head 15
Both sides, described exhaust apparatus 18 is the above-mentioned multi-functional lobby device of air for electromotor.
During work, the air inlet of described electromotor is introduced into the cylinder head 15 of electromotor by air cleaner 17 and sends out
Fuel oil mixing in motivation is burnt, and the waste gas after burning is introduced into exhaustor 3 by the air vent of cylinder head 15, by row
On trachea 3, the passage 8 of distribution is imported into the first working chamber 6, and the gas flow area of described first working chamber 6 is more than exhaustor
The gas flow area of 3, subsequently enters the gas of the first working chamber 6 under the effect of pressure at expulsion, quickly passes through purifying and catalyzing
The opening of device 2 one end enters in catalyst for purifying 2 (i.e. intermediate working chamber), and by the cellular micropore arranged on partition wall
Enter another hole and be imported into the second working chamber 7, by the gas of the second working chamber 7 quickly by the ventilation of distribution on escape pipe 4
Hole 8 is discharged in air after entering escape pipe 4.
The above-mentioned multi-functional lobby device of air for electromotor is not only simple in structure, compact, and engine exhaust can be met
The muffler structure of the electromotor of pollutant laws and regulations requirement, and this muffler structure disclosure satisfy that primary motivation
Profile mounting structure, it is ensured that the compactedness of former engine structure, can play again purification aerofluxus simultaneously, effectively reduce engine noise
Effect.
Above example simply elaborates ultimate principle and the characteristic of the present invention, and the present invention is not limited by above-mentioned example,
Without departing from the spirit and scope, the present invention also has various change and change, and these changes and change both fall within
In scope of the claimed invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (9)
1. for a multi-functional lobby device of air for electromotor, it includes housing, is working chamber in described housing, and its feature exists
Being fixedly arranged in the middle of catalyst for purifying in, described housing, described working chamber is divided into the first working chamber by described catalyst for purifying
With the second working chamber and own as intermediate working chamber, in described first working chamber, it is provided with exhaustor, described second work
Intracavity is provided with escape pipe, and described catalyst for purifying is densely covered with the pore of parallel distribution in the axial direction, adjacent two pores it
Between partition wall on be coated with catalyst coat, the gas flow area of described first working chamber more than exhaustor gas circulation
Area, the airflow area in described catalyst for purifying is less than the first working chamber and the second working chamber, described second working chamber
Gas flow area more than the gas flow area of escape pipe.
Multi-functional lobby device of air for electromotor the most according to claim 1, it is characterised in that described exhaustor and going out
Trachea stretches into and offers several passages on one end of described housing.
Multi-functional lobby device of air for electromotor the most according to claim 1, it is characterised in that the outside of described housing
Protective cover is installed, between described protective cover and described housing, is provided with heat insulation silencing cotton.
Multi-functional lobby device of air for electromotor the most according to claim 2, it is characterised in that the one of described exhaustor
End vertically runs through described first working chamber and arranges, and the tube wall of its corresponding described catalyst for purifying all offers passage.
Multi-functional lobby device of air for electromotor the most according to claim 2, it is characterised in that the one of described escape pipe
End is inserted vertically into housing and arranges, and this end is positioned at the middle part of described second working chamber vertical direction, and inserts on described escape pipe
Passage is all offered on the tube wall of housing parts.
Multi-functional lobby device of air for electromotor the most according to claim 1, it is characterised in that one end of described pore
For opening, the other end is then arranged to closure face, described closure face and opening and arranges in interval, between described adjacent two pores
It is distributed in cellular micropore on partition wall, partition wall is coated with catalyst coat.
Multi-functional lobby device of air for electromotor the most according to claim 1, it is characterised in that described catalyst for purifying
Including cellular carrier, surrounding's parcel of described carrier coordinates the heat insulation foam of support shapes, the outer enclosure of described heat insulation foam
Protection board.
Multi-functional lobby device of air for electromotor the most according to claim 1, it is characterised in that described housing is by upper casing
Body and lower house composition, the inwall of described upper shell and lower house is all correspondingly arranged on two thrust steps, and said two is only
The spacing pushing away step coordinates described catalyst for purifying to arrange, and described catalyst for purifying is only arranged at two of upper shell and lower house
Pushing away between step, described upper shell and lower house are welded and fixed connection and are fixed in described housing by catalyst for purifying.
9. an electromotor, it includes cylinder head, fuel tank, air cleaner and exhaust apparatus, the week of described cylinder head
Closely being connected to fuel tank, air cleaner and exhaust apparatus on the connecting end surface of limit, described air cleaner is arranged
In the front end of electromotor, described fuel tank and exhaust apparatus are arranged in the both sides of cylinder head, it is characterised in that described aerofluxus
Device is the multi-functional lobby device of air for electromotor described in any one of the claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610723128.XA CN106285873A (en) | 2016-08-25 | 2016-08-25 | A kind of multi-functional lobby device of air for electromotor and electromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610723128.XA CN106285873A (en) | 2016-08-25 | 2016-08-25 | A kind of multi-functional lobby device of air for electromotor and electromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106285873A true CN106285873A (en) | 2017-01-04 |
Family
ID=57616311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610723128.XA Pending CN106285873A (en) | 2016-08-25 | 2016-08-25 | A kind of multi-functional lobby device of air for electromotor and electromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106285873A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06108835A (en) * | 1992-09-25 | 1994-04-19 | Mitsubishi Heavy Ind Ltd | Catalyst muffler |
| US5519994A (en) * | 1994-02-18 | 1996-05-28 | Tennessee Gas Pipeline Company | Muffler with inlet pipe equalizer |
| CN102278180A (en) * | 2011-05-19 | 2011-12-14 | 刘光文 | Exhaust gas catalytic purification silencer of engine |
| CN203906061U (en) * | 2014-03-19 | 2014-10-29 | 诸城福田汽车科技开发有限公司 | Silencer |
| CN204163805U (en) * | 2014-02-02 | 2015-02-18 | 金坛市佳越机械有限公司 | A kind of diesel engine silencer of exempting from stretching anechoic chamber structure |
| EP2891778A1 (en) * | 2013-12-04 | 2015-07-08 | Honda Motor Co., Ltd. | Exhaust system for motorcycle with catalyst inside of silencer |
| CN104929739A (en) * | 2015-07-06 | 2015-09-23 | 无锡华源凯马发动机有限公司 | Integrated purification silencer for single cylinder diesel |
| CN205330769U (en) * | 2016-01-04 | 2016-06-22 | 江阴华音陶瓷机电科技有限公司 | High rate of air hole particulate filter |
-
2016
- 2016-08-25 CN CN201610723128.XA patent/CN106285873A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06108835A (en) * | 1992-09-25 | 1994-04-19 | Mitsubishi Heavy Ind Ltd | Catalyst muffler |
| US5519994A (en) * | 1994-02-18 | 1996-05-28 | Tennessee Gas Pipeline Company | Muffler with inlet pipe equalizer |
| CN102278180A (en) * | 2011-05-19 | 2011-12-14 | 刘光文 | Exhaust gas catalytic purification silencer of engine |
| EP2891778A1 (en) * | 2013-12-04 | 2015-07-08 | Honda Motor Co., Ltd. | Exhaust system for motorcycle with catalyst inside of silencer |
| CN204163805U (en) * | 2014-02-02 | 2015-02-18 | 金坛市佳越机械有限公司 | A kind of diesel engine silencer of exempting from stretching anechoic chamber structure |
| CN203906061U (en) * | 2014-03-19 | 2014-10-29 | 诸城福田汽车科技开发有限公司 | Silencer |
| CN104929739A (en) * | 2015-07-06 | 2015-09-23 | 无锡华源凯马发动机有限公司 | Integrated purification silencer for single cylinder diesel |
| CN205330769U (en) * | 2016-01-04 | 2016-06-22 | 江阴华音陶瓷机电科技有限公司 | High rate of air hole particulate filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105888782B (en) | Diesel engine vent gas composite purification device | |
| CN105781689B (en) | Diesel engine vent gas compound noise-reducing device | |
| CN108625933A (en) | A kind of diesel particulate trap based on DOC and DPF | |
| CN201354668Y (en) | Engine tail gas purification muffler | |
| CN208793066U (en) | A kind of diesel particulate trap based on DOC and DPF | |
| CN111102037B (en) | Engine catalysis type particulate trap with amortization guiding device | |
| CN106321207A (en) | Engine exhaust device being convenient to maintain and engine | |
| CN205330769U (en) | High rate of air hole particulate filter | |
| CN212154918U (en) | Exhaust pipe silencer | |
| CN105736097B (en) | Diesel engine vent gas reclaiming clean and noise reduction set composite | |
| CN205559023U (en) | A combined type tail gas cleanup unit for diesel engine | |
| CN205477849U (en) | A device of making an uproar falls in combined type tail gas for diesel engine | |
| CN206429304U (en) | A kind of sound insulation of engine, noise reduction, exhaust treatment system | |
| CN208918658U (en) | A kind of silencer with waste gas purification function | |
| CN106285873A (en) | A kind of multi-functional lobby device of air for electromotor and electromotor | |
| CN205477848U (en) | A tail gas is retrieved purification and is fallen set composite of making an uproar for diesel engine | |
| CN212003322U (en) | Environment-friendly energy-saving silencer of engine | |
| CN1811140A (en) | Auspuffsystem fur ein fahrzeug | |
| CN108301921A (en) | A kind of sound insulation of engine, noise reduction, exhaust treatment system | |
| CN113107640A (en) | Automobile exhaust purification silencer capable of increasing contact between silencing cotton and air | |
| CN107227996A (en) | The exhaust gas filter of the good purification of effective denitrification | |
| CN106121775A (en) | A kind of single-cylinder air-cooled machine acoustic wave filter structure | |
| CN201354667Y (en) | Engine tail gas purification muffler | |
| CN213063711U (en) | Automobile purification silencer | |
| CN205559037U (en) | A kuppe for silencer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |