CN207526554U - A kind of Double-casing mobile muffler - Google Patents
A kind of Double-casing mobile muffler Download PDFInfo
- Publication number
- CN207526554U CN207526554U CN201721688638.4U CN201721688638U CN207526554U CN 207526554 U CN207526554 U CN 207526554U CN 201721688638 U CN201721688638 U CN 201721688638U CN 207526554 U CN207526554 U CN 207526554U
- Authority
- CN
- China
- Prior art keywords
- chamber
- pipe
- inner housing
- diversion pipe
- air inlet
- 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.)
- Expired - Fee Related
Links
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of Double-casing mobile mufflers, including outer housing and inner housing, sound-proof material is filled between outer housing and inner housing, circulating cooling water pipe is equipped between outer housing and inner housing, front baffle is equipped in inner housing, middle partition board and rear bulkhead, the bottom of front baffle is equipped with through-hole, silencing cotton is filled between middle partition board and rear bulkhead, the front end of inner housing is equipped with air inlet pipe, the rear end of air inlet pipe is connected with air inlet splitter cavity, the first diversion pipe extended along the longitudinal direction is equipped in inner housing, second diversion pipe and third diversion pipe, the bottom at inner housing rear portion is equipped with exhaust manifold, the end that exhaust manifold stretches out outer housing is connected with tailpipe, the rear portion of exhaust manifold is communicated with exhaust branch pipe.The utility model can obstruct the noise that hull outside is reached through suppressor lumen, reduce exhaust noise intensity, and efficiently avoid sour curdling water and cause muffler internal corrosion when discharging not in time, improve the service life of muffler.
Description
Technical field
The utility model belongs to muffler technical field, and in particular to a kind of Double-casing mobile muffler.
Background technology
At present, mobile muffler is the common building block of automobile, is made using sound wave superposition interference.Mobile muffler has
Conducive to the noise pollution reduced in vehicle traveling process, and high-temp waste gas is enable safely and effectively to discharge.Muffler is as exhaust
A part for system should ensure that its smooth gas discharge, resistance be small and sufficient intensity.Muffler will be subjected to 500 ~ 700 DEG C of high-temperature exhaust airs,
Ensure in the enforcement mileage of automotive regulations, do not damage, do not lose noise elimination effect.
But most of muffler shells are individual layer stainless steel material, soundproof effect is poor.And engine exhaust entrance disappears
Since temperature reduces after sound device, liquid acid condensation water can be generated, this phenomenon becomes apparent when temperature is relatively low in winter, acid
If condensation water is discharged not in time can cause muffler internal corrosion, the normal work and service life of muffler are directly affected；Greatly
Most mufflers discharge ponding in the form of housing perforation, and this form not only be easy to cause osculum gas leakage and increases exhaust
Noise, it is also possible to fail when impurity blocks osculum inside muffler.
Utility model content
Based on the deficiencies of the prior art, the purpose of this utility model is to provide a kind of Double-casing mobile muffler, sound insulations
Effect is good, and service life is long.
To achieve these goals, the technical solution that the utility model is taken is as follows：
A kind of Double-casing mobile muffler including outer housing and inner housing, is filled with sound insulation between outer housing and inner housing
Cotton, circumferentially spiral cloth is equipped with circulating cooling water pipe between outer housing and inner housing；
In inner housing from front to back successively be equipped with front baffle, middle partition board and rear bulkhead, the front baffle, middle partition board and after every
Plate will be separated into first chamber, second chamber, third chamber and the 4th chamber, the bottom of front baffle from front to back inside inner housing
Equipped with through-hole, first chamber is connected with second chamber by the through-hole, and silencing cotton is filled in third chamber；
The front end of inner housing be equipped with air inlet pipe, the air inlet pipe sequentially passed through outside outer housing outer housing, sound-proof material and
Inner housing is simultaneously stretched into first chamber, and the end that the air inlet pipe is located in first chamber is connected with air inlet splitter cavity, it is described into
Gas splitter cavity side wall is equipped with several tap holes；
The first diversion pipe, the second diversion pipe and the third diversion pipe extended along the longitudinal direction is equipped in inner housing, it is described
The front end of first diversion pipe is located in first chamber, and the first diversion pipe sequentially passes through front baffle, middle partition board and rear bulkhead, and first
The rear end of diversion pipe is located in the 4th chamber, and the front end of second diversion pipe is located in first chamber, and the second diversion pipe is successively
Across front baffle and middle partition board, and the rear end of the second diversion pipe is located in third chamber, and the front end of the third diversion pipe is located at
In second chamber, third diversion pipe middle partition board and rear bulkhead, and the rear end of third diversion pipe is located in the 4th chamber successively；
The bottom at inner housing rear portion is equipped with exhaust manifold, and the front end of the exhaust manifold is located at second chamber, exhaust manifold
Middle partition board, rear bulkhead, inner housing and outer housing are sequentially passed through backward, and the end of exhaust manifold stretching outer housing is connected with exhaust
Tail pipe, the rear portion of exhaust manifold is equipped with branch stomata, and exhaust branch pipe is communicated at branch stomata, and exhaust branch pipe and exhaust manifold
Junction is located in the 4th chamber, and the front end of the exhaust branch pipe is extended forwardly into third chamber, the bottom of exhaust manifold rear end
Portion is equipped with osculum；
First diversion pipe is located at the indoor tube wall of third chamber, third diversion pipe is located at the indoor tube wall of third chamber, exhaust master
All along the circumferential direction uniform intervals are equipped with the first bloop of several columns to pipe on tube wall between middle partition board and branch stomata.
Preferably, the section of outer housing and inner housing is oval, and the longitudinal center line weight of outer housing and inner housing
It closes.
Preferably, longitudinal center line of the longitudinal center line of the air inlet pipe and air inlet splitter cavity with inner housing overlaps,
The ellipsoidal cross section of the air inlet splitter cavity, and air inlet splitter cavity be hollow structure, the symmetrical distribution of tap hole
In the circumference side of air inlet splitter cavity and trailing flank.
Preferably, the tailpipe uses biexhaust pipe structure, i.e., there are two horizontal rows for the rear end connection of exhaust manifold
Pipe, and two symmetrical settings of comb；Along the circumferential direction uniform intervals are equipped with the second bloop of several columns to two combs,
Sleeve is arranged with, and puigging is filled between sleeve and comb on two combs.
Further, the puigging is made of ABS resin.
Preferably, the outer housing and inner housing are made of stainless steel.
Preferably, the sound-proof material is made of ethylene propylene diene rubber.
Preferably, the silencing cotton is Fiber Materials.
The beneficial effects of the utility model are as follows：
1. using inside and outside double-layer shell structure, filled with sound-proof material between inside and outside double Shell, can obstruct through noise reduction
Device inner cavity reaches the noise of hull outside；
2. exhaust gas enters first chamber after the shunting of air inlet splitter cavity, the gas of multiple and different flow directions is generated in chamber
Diffusion, interference, reflection, reduce exhaust noise intensity；
3. the aperture of the size of each diversion pipe, bloop and quantity can all be set according to actual service conditions, engine row
Gas air-flow is reduced in muffler different chamber internal circulation flow, in the process air-flow through multiple detour friction buffer noise reduction
Kinetic energy is vented, noise is substantially reduced；
4. exhaust manifold is arranged in the extreme lower position of vertical direction in muffler inner housing, muffler front baffle Vertical Square
To bottommost be provided with through-hole, the sour curdling water in first chamber enters second chamber through above-mentioned through-hole, in second chamber
Ponding is discharged with exhaust airstream through exhaust manifold, the ponding of third chamber and the 4th chamber through bloop on exhaust manifold tube wall into
It is discharged after entering exhaust manifold, muffler internal corrosion is caused when discharging not in time thus effectively avoids sour curdling water,
Improve the service life of muffler.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is hatchings of the Fig. 1 along line A-A；
Fig. 3 is the structure diagram of air inlet splitter cavity rear end face in Fig. 1；
Fig. 4 is the structure diagram of tailpipe in Fig. 1；
Fig. 5 is the structure diagram of circulating cooling water pipe in Fig. 1.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " third " are only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
As shown in Fig. 1 ~ 5, a kind of Double-casing mobile muffler, including outer housing 1 and inner housing 2, outer housing 1 and inner housing
2 section is oval, and outer housing 1 is overlapped with the longitudinal center line of inner housing 2, and the outer housing 1 and inner housing 2 are adopted
It is made of stainless steel material；Filled with sound-proof material 3 between outer housing 1 and inner housing 2, the sound-proof material 3 is using hole-closing structure
Ethylene propylene diene rubber is made, to obstruct the noise reached through suppressor lumen outside outer housing 1；Outer housing 1 and inner housing 2 it
Between circumferentially spiral cloth be equipped with circulating cooling water pipe 4, comprising a large amount of heat in engine exhaust, the high-temp waste gas in muffler
Inner housing 2 is heated before air is drained into, inner housing 2 transfers heat to circulating cooling water pipe 4, and circulating cooling liquid absorbs heat
It can be used to the air intake branch of heated engine or the warm air heater core of air-conditioning system afterwards.
In inner housing 2 from front to back successively be equipped with front baffle 5, middle partition board 6 and rear bulkhead 7, front baffle 5, middle partition board 6 and after
Partition board 7 is vertically welded on 2 inner wall of muffler inner housing, and the front baffle 5, middle partition board 6 and rear bulkhead 7 will be in inner housings 2
Portion is separated into first chamber 8, second chamber 9,10 and the 4th chamber 11 of third chamber from front to back.The bottom of front baffle 5 is equipped with
Through-hole 12, first chamber 8 are connected with second chamber 9 by the through-hole 12.Filled with silencing cotton, noise reduction in third chamber 10
Cotton is the Fiber Materials of open-celled structure, for absorbing the exhaust noise in third chamber 10.
The front end of inner housing 2 be equipped with air inlet pipe 13, the air inlet pipe 13 sequentially passed through outside outer housing 1 outer housing 1, every
Sound cotton 3 and inner housing 2 are simultaneously stretched into first chamber 8, and engine exhaust enters muffler through air inlet pipe 13；The air inlet pipe 13
The longitudinal center line of air inlet splitter cavity 14, the air inlet pipe 13 and air inlet splitter cavity 14 is connected in the end in first chamber 8
During longitudinal center line with inner housing 2 overlaps, the ellipsoidal cross section of the air inlet splitter cavity 14, and air inlet splitter cavity 14 is
Hollow structure；Top, bottom and the arranged on left and right sides of 14 circumference side of air inlet splitter cavity are equipped with tap hole 15, and air inlet shunts
Top, lower part, left part, right part and the middle part of the rear end face of chamber 14 are also provided with tap hole 15, and all tap holes 15 are in left and right
It is symmetrical.The exhaust gas that air inlet pipe 13 comes enters first chamber 8 after the shunting of air inlet splitter cavity 14, generates multiple and different flow directions
Gas, diffusion, interference, reflection, reduce exhaust noise intensity in the first chamber 8.
The first diversion pipe 16, the second diversion pipe 17 and the third diversion pipe extended along the longitudinal direction is equipped in inner housing 2
18, and the first diversion pipe 16, the second diversion pipe 17 and third diversion pipe 18 in the height direction according to arranging from bottom to up.It is described
The front end of first diversion pipe 16 is located in first chamber 8, and the first diversion pipe 16 sequentially passes through front baffle 5, middle partition board 6 and rear bulkhead
7, and the rear end of the first diversion pipe 16 is located in the 4th chamber 11；The front end of second diversion pipe 17 is located in first chamber 8,
Second diversion pipe 17 sequentially passes through front baffle 5 and middle partition board 6, and the rear end of the second diversion pipe 17 is located in third chamber 10；Institute
The front end for stating third diversion pipe 18 is located in second chamber 9, third diversion pipe 18 middle partition board 6 and rear bulkhead 7, and third is led successively
The rear end of flow tube 18 is located in the 4th chamber 11.
The bottom at 2 rear portion of inner housing is equipped with exhaust manifold 19, and the front end of the exhaust manifold 19 is located at second chamber 9, arranges
Gas supervisor 19 sequentially passes through middle partition board 6, rear bulkhead 7, inner housing 2 and outer housing 1 backward, and exhaust manifold 19 stretches out outer housing 1
End be connected with tailpipe 20；The tailpipe 20 uses biexhaust pipe structure, i.e. the rear end of exhaust manifold 19 is connected with
Two horizontal combs 201, and two 201 symmetrical settings of comb；Two combs 201 along the circumferential direction uniform intervals
Equipped with the second bloop of several columns 202, sleeve 203 is arranged on two combs 201, and filled out between sleeve 203 and comb 201
Puigging 204 is filled, the puigging 204 is made of ABS resin；The rear portion of exhaust manifold 19 is equipped with branch stomata, and branch gas
Exhaust branch pipe 21 is communicated at hole, and exhaust branch pipe 21 and the junction of exhaust manifold 19 are located in the 4th chamber 11, the row
Gas branch pipe 21 is in curved pipeline, and the front end of exhaust branch pipe 21 is extended forwardly into third chamber 10.
Wherein, the first diversion pipe 16 is located at the tube wall in third chamber 10, third diversion pipe 18 is located in third chamber 10
Tube wall, exhaust manifold 19 on tube wall between middle partition board 6 and branch stomata all along the circumferential direction uniform intervals be equipped with it is several
The first bloop of row 22 is in interlaced arrangement between forward and backward two adjacent the first bloops of row 22.The front end of first diversion pipe 16
The front port of mouth, the front port of the second diversion pipe 17, the rear port of third diversion pipe 18 and exhaust branch pipe 21 is in horn-like.
The caliber of first diversion pipe 16, the caliber of the second diversion pipe 17, the caliber of third diversion pipe 18, the first noise reduction
The aperture in hole 22 and quantity can all be set according to actual service conditions；Pass through the first diversion pipe 16, the second diversion pipe 17 and third
Diversion pipe 18, engine exhaust air-flow rub in muffler different chamber internal circulation flow, in the process air-flow through multiple detour
Buffering noise reduction is wiped, reduces exhaust kinetic energy, noise is substantially reduced.Engine exhaust enters after muffler since temperature reduces, meeting
Liquid acid condensation water is generated, this phenomenon becomes apparent when temperature is relatively low in winter, when the utility model is used, first chamber
Sour curdling water in 8 enters second chamber 9 through the through-hole 12, and 9 internal water accumulation of second chamber is with exhaust airstream through exhaust manifold
19 discharges, the ponding of 10 and the 4th chamber 11 of third chamber enters exhaust through the first bloop 22 on 19 tube wall of exhaust manifold to be led
It is discharged after pipe 19；The bottom of 19 rear end of exhaust manifold is equipped with osculum 23, for the ponding in Accelerating Removal exhaust manifold 19.
The present utility model is not limited to the above embodiments, and the above embodiments and description only describe this realities
With novel principle, the utility model also has various change and changes on the premise of not departing from the spirit and scope of the utility model
Into these various changes and improvements fall within the scope of the claimed invention.
Claims (8)
1. a kind of Double-casing mobile muffler, it is characterised in that：Including outer housing and inner housing, filled out between outer housing and inner housing
Filled with sound-proof material, circumferentially spiral cloth is equipped with circulating cooling water pipe between outer housing and inner housing；
It is equipped with front baffle, middle partition board and rear bulkhead in inner housing successively from front to back, the front baffle, middle partition board and rear bulkhead will
First chamber, second chamber, third chamber and the 4th chamber are separated into inside inner housing from front to back, the bottom of front baffle is equipped with
Through-hole, first chamber are connected with second chamber by the through-hole, and silencing cotton is filled in third chamber；
The front end of inner housing is equipped with air inlet pipe, and the air inlet pipe sequentially passes through outer housing, sound-proof material and inner casing outside outer housing
Body is simultaneously stretched into first chamber, and the end that the air inlet pipe is located in first chamber is connected with air inlet splitter cavity, described into qi leel
It flows chamber side wall and is equipped with several tap holes；
It is equipped with the first diversion pipe, the second diversion pipe and the third diversion pipe extended along the longitudinal direction in inner housing, described first
The front end of diversion pipe is located in first chamber, and the first diversion pipe sequentially passes through front baffle, middle partition board and rear bulkhead, and the first water conservancy diversion
The rear end of pipe is located in the 4th chamber, and the front end of second diversion pipe is located in first chamber, and the second diversion pipe sequentially passes through
Front baffle and middle partition board, and the rear end of the second diversion pipe is located in third chamber, the front end of the third diversion pipe is located at second
In chamber, third diversion pipe middle partition board and rear bulkhead, and the rear end of third diversion pipe is located in the 4th chamber successively；
The bottom at inner housing rear portion is equipped with exhaust manifold, and the front end of the exhaust manifold is located at second chamber, and exhaust manifold is backward
Middle partition board, rear bulkhead, inner housing and outer housing are sequentially passed through, and the end of exhaust manifold stretching outer housing is connected with exhaust tail
Pipe, the rear portion of exhaust manifold are equipped with branch stomata, and exhaust branch pipe is communicated at branch stomata, and the company of exhaust branch pipe and exhaust manifold
It meets place to be located in the 4th chamber, the front end of the exhaust branch pipe is extended forwardly into third chamber, the bottom of exhaust manifold rear end
Equipped with osculum；
First diversion pipe is located at the indoor tube wall of third chamber, third diversion pipe is located at the indoor tube wall of third chamber, exhaust manifold position
All along the circumferential direction uniform intervals are equipped with the first bloop of several columns on tube wall between middle partition board and branch stomata.
2. Double-casing mobile muffler according to claim 1, it is characterised in that：The section of outer housing and inner housing is in
Ellipse, and outer housing is overlapped with the longitudinal center line of inner housing.
3. Double-casing mobile muffler according to claim 1, it is characterised in that：The air inlet pipe and air inlet splitter cavity
Longitudinal center line is overlapped with the longitudinal center line of inner housing, the ellipsoidal cross section of the air inlet splitter cavity, and air inlet shunts
Chamber is hollow structure, the symmetrical circumference side and trailing flank for being distributed in air inlet splitter cavity of the tap hole.
4. Double-casing mobile muffler according to claim 1, it is characterised in that：The tailpipe uses biexhaust pipe knot
The comb for level that there are two the rear end connections of structure, i.e. exhaust manifold, and two symmetrical settings of comb；Two equal edges of comb
Circumferencial direction uniform intervals are equipped with the second bloop of several columns, and sleeve is arranged with, and between sleeve and comb on two combs
It is filled with puigging.
5. Double-casing mobile muffler according to claim 4, it is characterised in that：The puigging uses ABS resin system
Into.
6. Double-casing mobile muffler according to any one of claims 1 to 4, it is characterised in that：The outer housing and inner casing
Body is made of stainless steel.
7. Double-casing mobile muffler according to any one of claims 1 to 4, it is characterised in that：The sound-proof material uses three
First EP rubbers is made.
8. Double-casing mobile muffler according to any one of claims 1 to 4, it is characterised in that：The silencing cotton is fiber
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721688638.4U CN207526554U (en) | 2017-12-07 | 2017-12-07 | A kind of Double-casing mobile muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721688638.4U CN207526554U (en) | 2017-12-07 | 2017-12-07 | A kind of Double-casing mobile muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207526554U true CN207526554U (en) | 2018-06-22 |
Family
ID=62578860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721688638.4U Expired - Fee Related CN207526554U (en) | 2017-12-07 | 2017-12-07 | A kind of Double-casing mobile muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207526554U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108665885A (en) * | 2018-07-25 | 2018-10-16 | 苏州泰隆制冷有限公司 | A kind of muffler of good heat dissipation effect |
| CN108678846A (en) * | 2018-07-25 | 2018-10-19 | 苏州泰隆制冷有限公司 | A kind of anticlogging muffler |
| CN108831430A (en) * | 2018-07-25 | 2018-11-16 | 苏州泰隆制冷有限公司 | It is a kind of to facilitate installation rapid disassembling type muffler |
| CN109139213A (en) * | 2018-09-03 | 2019-01-04 | 合肥集民科技有限公司 | A kind of automobile exhaust pipe of good muffling effect |
| CN109252930A (en) * | 2018-09-03 | 2019-01-22 | 合肥集民科技有限公司 | A kind of sound insulation anti-corrosion type automobile exhaust pipe |
| CN114412613A (en) * | 2022-02-07 | 2022-04-29 | 中国船舶重工集团公司第七一一研究所 | Reactive muffler and ship |
-
2017
- 2017-12-07 CN CN201721688638.4U patent/CN207526554U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108665885A (en) * | 2018-07-25 | 2018-10-16 | 苏州泰隆制冷有限公司 | A kind of muffler of good heat dissipation effect |
| CN108678846A (en) * | 2018-07-25 | 2018-10-19 | 苏州泰隆制冷有限公司 | A kind of anticlogging muffler |
| CN108831430A (en) * | 2018-07-25 | 2018-11-16 | 苏州泰隆制冷有限公司 | It is a kind of to facilitate installation rapid disassembling type muffler |
| CN109139213A (en) * | 2018-09-03 | 2019-01-04 | 合肥集民科技有限公司 | A kind of automobile exhaust pipe of good muffling effect |
| CN109252930A (en) * | 2018-09-03 | 2019-01-22 | 合肥集民科技有限公司 | A kind of sound insulation anti-corrosion type automobile exhaust pipe |
| CN114412613A (en) * | 2022-02-07 | 2022-04-29 | 中国船舶重工集团公司第七一一研究所 | Reactive muffler and ship |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207526554U (en) | A kind of Double-casing mobile muffler | |
| CN211648391U (en) | Silencer combined device of fuel cell exhaust system | |
| CN207554154U (en) | A kind of disconnectable mobile muffler of filter core | |
| CN210686088U (en) | Generating set tail gas purification muffler | |
| CN205578066U (en) | Novel silencer | |
| CN201184226Y (en) | Automobile energy-saving silencer | |
| CN210948860U (en) | Exhaust pipe with heat shield | |
| CN205503239U (en) | Automobile -used silencing device | |
| CN209100123U (en) | A kind of high-power diesel generator exhaust silencer | |
| CN201934169U (en) | Exhaust silencer of diesel engine | |
| CN206175040U (en) | Car second grade muffler | |
| CN203321650U (en) | Transverse flow perforated pipe silencer structure with choked flow barrier | |
| CN203939565U (en) | Water cooled silencer | |
| CN212563845U (en) | Square intake and exhaust silencer | |
| CN211924285U (en) | Dual-purpose vehicle vent-pipe noise eliminator | |
| CN2871858Y (en) | Silencer for automobile | |
| CN207437173U (en) | A kind of exhaust silencer | |
| CN202596840U (en) | Automobile muffler | |
| CN207795357U (en) | Automobile exhaust system | |
| CN201818347U (en) | Automotive impedance composite muffler | |
| CN212840061U (en) | Pipeline silencer | |
| CN221195161U (en) | Exhaust silencer | |
| CN202047881U (en) | Exhaust silencer for engine | |
| CN206319975U (en) | Engine overhead air filter | |
| CN201865725U (en) | Automobile muffler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20191207 |