CN206681825U - A kind of Exhaust Muffler of Car system - Google Patents
A kind of Exhaust Muffler of Car system Download PDFInfo
- Publication number
- CN206681825U CN206681825U CN201621480014.9U CN201621480014U CN206681825U CN 206681825 U CN206681825 U CN 206681825U CN 201621480014 U CN201621480014 U CN 201621480014U CN 206681825 U CN206681825 U CN 206681825U
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- CN
- China
- Prior art keywords
- premuffler
- hush tube
- rear muffler
- muffler
- chamber
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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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Abstract
It the utility model is related to a kind of Exhaust Muffler of Car system, including bellows, catalytic cleaner, premuffler assembly and rear muffler assembly；Described bellows one end connects engine exhaust port, and the other end connects the catalytic cleaner and connects the premuffler assembly by the catalytic cleaner；The premuffler assembly is connected with rear muffler assembly；The premuffler assembly includes premuffler, air inlet pipe and blast pipe；The front end of the premuffler connects the output end of the catalytic cleaner by air inlet pipe, and rear end is connected by the blast pipe with the rear muffler assembly.The utility model structure design is simple, reasonable, devise multistage expansion noise elimination structure, the resistive composite sound damping structure combined with resistance is provided with forward and backward silencer, low frequency and high frequency all possess good soundproof effect, have the advantages that good muffling effect, power loss are small.
Description
Technical field
The present invention relates to auto-parts technical field, and in particular to a kind of Exhaust Muffler of Car system.
Background technology
As the continuous progress of society, people are more and more stronger to the consciousness of environmental protection.Noise pollution is as environmental pollution
One of major part, increasingly obtained the great attention of society.Noise can not only influence the live and work of people, and
And can also very big harm be produced to the health of human body.Thus effective control noise pollution is to social development and people's living standard
Raising be very urgent and necessary.With gradually increasing for vehicle fleet size, traffic noise has become as caused by vehicle
The main source of city noise, and exhaust noise is the main contributions source of automobile noise among these.If not filling sound-attenuating system, vapour
The noise of car can reach more than 100 decibels, and human body and environment may all be damaged.So gas extraction system is to controlling and dropping
Low automobile noise plays the role of very big.
Present silencer is broadly divided into resistive, resistance and impedance complex in pattern, main in addition with one kind
Dynamic noise reducing type silencer, but by the state of the art of current silencer for, it is following for a comparatively long period of time, active noise reduction
And half active noise reduction be also difficult to apply in vehicle exhaust system, even if having test result, but its economy and reliability also without
Method compares favourably with conventional muffler.And the demand of conventional muffler is still very huge.Therefore for conventional muffler
Research and development are also necessary.
The content of the invention
In view of the above-mentioned problems, it is simple, reasonable the utility model proposes a kind of structure design, devise multistage expansion and eliminate the noise
Structure, the resistive composite sound damping structure combined with resistance is provided with forward and backward silencer, low frequency and high frequency all possess to disappear well
Sound effective value, there is the small Exhaust Muffler of Car system of good muffling effect, power loss.
The technical solution of the utility model is as follows：
Above-mentioned Exhaust Muffler of Car system, including bellows, catalytic cleaner, premuffler assembly and rear muffler
Assembly；Described bellows one end connects engine exhaust port, and the other end connects the catalytic cleaner and is catalyzed only by described
Change device and connect the premuffler assembly；The premuffler assembly is connected with rear muffler assembly；The premuffler assembly
Including premuffler, air inlet pipe and blast pipe, the front end of the premuffler connects the catalytic cleaner by air inlet pipe
Output end, rear end are connected by the blast pipe with the rear muffler assembly；
The inner chamber of the premuffler is divided into three chambers from the front to the back by premuffler dividing plate；Disappear before described
First lumenal levels of sound device are provided with hush tube before premuffler, and the 3rd chamber indoor horizontal of the premuffler disappears before being provided with
Hush tube after sound device；Hush tube central coaxial after hush tube and premuffler before the premuffler；Disappear before the premuffler
Sound attenuation hole is laid with the body that sound pipe is located in the first chamber of the premuffler；Before the premuffler before hush tube
The output end connection in the catalytic cleaner is held, the end of hush tube stretches into the of the premuffler before the premuffler
Closed in two chambers and with blanking cover；The front end of hush tube is in horn-like and penetrate the of the premuffler after the premuffler
In two chambers；Noise elimination is also laid with the body that hush tube is located in the 3rd chamber of the premuffler after the premuffler
Hole and outside also it is cased with hush tube glass fibre cotton after premuffler；
The rear muffler assembly includes rear muffler, rear air inlet pipe and tail pipe；The inner chamber of the rear muffler is by forward direction
Four chambers are divided into by rear muffler dividing plate afterwards, the inner chamber of the rear muffler is horizontal from top to bottom to be provided with rear muffler
Hush tube after hush tube and rear muffler in preceding hush tube, rear muffler rear muffler；The preceding hush tube of the rear muffler, after disappear
Hush tube penetrates four chambers of the rear muffler after hush tube and rear muffler in sound device；Eliminated the noise before the rear muffler
The front end matching of pipe connects hush tube after the premuffler, and end is closed by another blanking cover；Eliminated the noise before the rear muffler
Body of the pipe in the second chamber of the rear muffler is laid with sound attenuation hole and outer cover is provided with hush tube before rear muffler
Glass fibre cotton；In the rear muffler hush tube be located at the second chamber of the rear muffler body outer cover be provided with after disappear
Hush tube glass fibre cotton in sound device；Hush tube is located at the body in the 4th chamber of the rear muffler in the rear muffler
On be also laid with sound attenuation hole, the end of hush tube is stretched at the 4th chamber 1/2 of the rear muffler in the rear muffler
And end is in horn-like；The body end that hush tube is located in the first chamber of the rear muffler after the rear muffler is in loudspeaker
Shape, be also laid with the body that hush tube is located in the second chamber of the rear muffler after the rear muffler sound attenuation hole and
Outer cover is provided with hush tube glass fibre cotton after rear muffler；The end of hush tube matches with the tail pipe after the rear muffler
It is connected.
The Exhaust Muffler of Car system, wherein：The air inlet pipe is defeated by forward flange and the catalytic cleaner
Go out end connection；The blast pipe is connected by rear flange with the rear air inlet pipe.
The Exhaust Muffler of Car system, wherein：Air inlet pipe is by face-flange and the rear flange after described
With connection；The face-flange is locked with the rear flange by connecting bolt.
Beneficial effect：
The utility model Exhaust Muffler of Car system structure design is simple, reasonable, devises multistage expansion noise elimination structure,
The resistive composite sound damping structure combined with resistance is provided with forward and backward silencer, low frequency and high frequency all possess effect of eliminating the noise well
Fruit, have the advantages that good muffling effect, power loss are small.
Specific advantage is as follows：
（1）Premuffler inner chamber is divided into three chambers from the front to the back by premuffler dividing plate, before premuffler
The end of hush tube is stretched into the second chamber of premuffler and closed with blanking cover, and this just makes first and second chamber of premuffler
Form expansion cavity and improve divergence ratio；
（2）In premuffler, laid on the body that hush tube is located in the 3rd chamber of premuffler after premuffler
There is sound attenuation hole and outside is also cased with hush tube glass fibre cotton after premuffler；Meanwhile in rear muffler, disappear before rear muffler
Sound pipe, which is located at the body in the second chamber of rear muffler and is laid with sound attenuation hole and outer cover, is provided with hush tube glass before rear muffler
Glass cellucotton, hush tube is located at the body outer cover of the second chamber of rear muffler and is provided with rear muffler and eliminates the noise in rear muffler
Pipe glass fibre cotton, sound attenuation hole is laid with the body that hush tube is located in the 4th chamber of rear muffler in rear muffler, after
Sound attenuation hole is laid with the body that hush tube is located in the second chamber of rear muffler after silencer and outside is cased with rear muffler
Hush tube glass fibre cotton afterwards, has collectively constituted the resistive composite sound damping structure combined with resistance, and low frequency and high frequency all possess very
Good soundproof effect, the insertion loss of every speed point is both greater than 30dB under full load（A）, better than Industry code requirements >=
24dB（A）, and power loss only has 3.6%, better than Industry code requirements≤6%, have good muffling effect, power loss small
Feature；
（3）The front end of hush tube is in horn-like after the premuffler of premuffler, is eliminated the noise in the rear muffler of rear muffler
The end of pipe is stretched at the 4th chamber 1/2 of rear muffler and end is in horn-like, is eliminated the noise after the premuffler of rear muffler
Body end of the pipe in the first chamber of rear muffler is in horn-like, and the design of this horn-like structure is made an uproar beneficial to the low frequency that disappears
Sound.
(4) hush tube in the rear muffler of rear muffler（Oviduct）It is divided into two tubules, beneficial to the low frequency noise that disappears, without increasing
Add exhaust resistance.
Brief description of the drawings
Fig. 1 is the connection of the bellows of the utility model Exhaust Muffler of Car system, catalytic cleaner and premuffler
Structural representation；
Fig. 2 is the structural representation of the rear muffler assembly of the utility model Exhaust Muffler of Car system；
Fig. 3 is the premuffler structural representation of the utility model Exhaust Muffler of Car system；
Fig. 4 is the rear muffler structural representation of the utility model Exhaust Muffler of Car system.
Embodiment
As shown in Figures 1 to 4, the utility model Exhaust Muffler of Car system, including it is bellows 1, catalytic cleaner 2, preceding
Muffler ASSY 3 and rear muffler assembly 4.
The one end of bellows 1 is connected with engine exhaust port, and other end connection catalytic cleaner 2 simultaneously passes through catalytic cleaner
2 connection premuffler assemblies 3.
The premuffler assembly 3 includes premuffler 31, air inlet pipe 32, forward flange 33, blast pipe 34 and rear flange 35；Should
The front end connection air inlet pipe 32 of premuffler 31, rear end connection blast pipe 34；The air inlet pipe 32 is net with catalysis by forward flange 33
Change the output end connection of device 2, the blast pipe 34 is connected by rear flange 35 with rear muffler assembly 4.Wherein, the premuffler 31
Front end be provided with drive end bearing bracket 311, rear end is provided with rear end cap 312；The inner chamber of the premuffler 31 passes through a pair of premuffler dividing plates
310 are divided into three chambers from the front to the back；31 first lumenal levels of the premuffler are provided with hush tube before premuffler
315, the chamber indoor horizontal of premuffler 31 the 3rd is provided with hush tube 316 after premuffler, the He of hush tube 315 before the premuffler
The central coaxial of hush tube 316 after premuffler.Hush tube 315 is located at the pipe in the first chamber of premuffler 31 before the premuffler
Multiple sound attenuation holes are also uniformly laid with body；The front end of hush tube 315 is through drive end bearing bracket 311 and net with being catalyzed before the premuffler
The output end for changing device 2 connects, and the end of hush tube 315 is stretched into the second chamber of premuffler 31 and uses blanking cover before the premuffler
Closing.The front end of hush tube 316 is in horn-like and penetrated in the second chamber of premuffler 31 after the premuffler, after rear end passes through
End cap 312；Also multiple sound attenuation holes and outer are uniformly laid with the body that hush tube 316 is located in the 3rd chamber after the premuffler
Portion is also cased with hush tube glass fibre cotton 317 after premuffler.
The rear muffler assembly 4 includes rear muffler 41, rear air inlet pipe 42, face-flange 43 and tail pipe 44；Wherein, after this
The rear and front end of silencer 41 is also equiped with end cap, and rear end is additionally provided with the first hook 410；The rear air inlet pipe 42 passes through face-flange
43 match connection with the rear flange 35 of premuffler assembly 3, and the rear side of air inlet pipe 42 is additionally provided with the second hook 421；The plane
The rear flange 35 of flange 43 and premuffler assembly 3 is locked by connecting bolt 45.The inner chamber of the rear muffler 41 by
Before go backward through rear muffler dividing plate 417 and be divided into four chambers, level is provided with from top to bottom for the inner chamber of the rear muffler 41
Hush tube 413 after hush tube 412 and rear muffler in hush tube 411, rear muffler before rear muffler；Eliminated the noise before the rear muffler
Hush tube 316 after the premuffler of the front end matching connection premuffler assembly 3 of pipe 411, end is closed by blanking cover；Disappear after this
Hush tube 411 penetrates 41 4 chambers of rear muffler before sound device, and hush tube 411 is located at rear muffler 41 second before the rear muffler
Body in chamber is uniformly laid with multiple sound attenuation holes and outer cover is provided with hush tube glass fibre cotton 414 before rear muffler；Should
Hush tube 412 penetrates four chambers in rear muffler, and it, which is located at after the body outer cover of the second chamber of rear muffler 41 is provided with, disappears
Hush tube glass fibre cotton 415 in sound device；Hush tube 412 is located at the body in the chamber of rear muffler 41 the 4th in the rear muffler
On be also laid with multiple sound attenuation holes, the end of hush tube 412 is stretched at the chamber 1/2 of rear muffler 41 the 4th in the rear muffler
And end is in horn-like；Hush tube 413 also extends through the chamber of rear muffler 41 4 after the rear muffler, and it is located at rear muffler 41
Body end in one chamber is in horn-like, and multiple disappear also uniformly is laid with the body in the second chamber of rear muffler 41
Acoustic aperture and outer cover are provided with hush tube glass fibre cotton 416 after rear muffler；The end of hush tube 413 and tail after the rear muffler
The matching of pipe 44 is connected.
The utility model structure design is simple, reasonable, devises multistage expansion noise elimination structure, is set in forward and backward silencer
There is the resistive composite sound damping structure combined with resistance, low frequency and high frequency all possess good soundproof effect, in addition, horn-like structure
Hush tube be beneficial to disappear low frequency noise, in rear muffler hush tube due to caliber it is small, beneficial to the low frequency noise that disappears, but do not increase exhaust
Resistance, this exhaust silencer system have the advantages that good muffling effect, power loss are small.
Claims (3)
1. a kind of Exhaust Muffler of Car system, including bellows, catalytic cleaner, premuffler assembly and rear muffler are total
Into；Described bellows one end connects engine exhaust port, and the other end connects the catalytic cleaner and passes through the catalytic purification
Device connects the premuffler assembly；The premuffler assembly is connected with rear muffler assembly, it is characterised in that：Disappear before described
Sound device assembly includes premuffler, air inlet pipe and blast pipe, and the front end of the premuffler connects the catalysis by air inlet pipe
The output end of clarifier, rear end are connected by the blast pipe with the rear muffler assembly；
The inner chamber of the premuffler is divided into three chambers from the front to the back by premuffler dividing plate；The premuffler
First lumenal levels be provided with hush tube before premuffler, the 3rd chamber indoor horizontal of the premuffler is provided with premuffler
Hush tube afterwards；Hush tube central coaxial after hush tube and premuffler before the premuffler；Hush tube before the premuffler
Sound attenuation hole is laid with the body in the first chamber of the premuffler；Before the premuffler front end of hush tube in
The output end of the catalytic cleaner connects, and the second chamber of the premuffler is stretched into the end of hush tube before the premuffler
It is indoor and closed with blanking cover；The front end of hush tube is in the second chamber that is horn-like and penetrating the premuffler after the premuffler
It is indoor；Also be laid with the body that hush tube is located in the 3rd chamber of the premuffler after the premuffler sound attenuation hole and
Outside is also cased with hush tube glass fibre cotton after premuffler；
The rear muffler assembly includes rear muffler, rear air inlet pipe and tail pipe；The inner chamber of the rear muffler leads to from the front to the back
Later silencer muffler partition plate is divided into four chambers, and the inner chamber of the rear muffler disappears before level is provided with rear muffler from top to bottom
Hush tube after hush tube and rear muffler in sound pipe, rear muffler rear muffler；Hush tube, rear muffler before the rear muffler
Hush tube penetrates four chambers of the rear muffler after middle hush tube and rear muffler；Hush tube before the rear muffler
Front end matching connects hush tube after the premuffler, and end is closed by another blanking cover；Hush tube position before the rear muffler
Sound attenuation hole is laid with the body in the second chamber of the rear muffler and outer cover is provided with hush tube glass before rear muffler
Cellucotton；Hush tube is located at the body outer cover of the second chamber of the rear muffler and is provided with rear muffler in the rear muffler
Middle hush tube glass fibre cotton；Hush tube is located on the body in the 4th chamber of the rear muffler in the rear muffler
It is laid with sound attenuation hole, the end of hush tube is stretched at the 4th chamber 1/2 of the rear muffler and end in the rear muffler
Portion is in horn-like；The body end that hush tube is located in the first chamber of the rear muffler after the rear muffler is in loudspeaker
Shape, sound attenuation hole and outer is also laid with the body that hush tube is located in the second chamber of the rear muffler after the rear muffler
Portion is arranged with hush tube glass fibre cotton after rear muffler；The end of hush tube matches phase with the tail pipe after the rear muffler
Even.
2. Exhaust Muffler of Car system as claimed in claim 1, it is characterised in that：The air inlet pipe passes through forward flange and institute
State the output end connection of catalytic cleaner；The blast pipe is connected by rear flange with the rear air inlet pipe.
3. Exhaust Muffler of Car system as claimed in claim 2, it is characterised in that：Air inlet pipe is to pass through planar process after described
It is blue to match connection with the rear flange；The face-flange is locked with the rear flange by connecting bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621480014.9U CN206681825U (en) | 2016-12-30 | 2016-12-30 | A kind of Exhaust Muffler of Car system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621480014.9U CN206681825U (en) | 2016-12-30 | 2016-12-30 | A kind of Exhaust Muffler of Car system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206681825U true CN206681825U (en) | 2017-11-28 |
Family
ID=60396071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621480014.9U Expired - Fee Related CN206681825U (en) | 2016-12-30 | 2016-12-30 | A kind of Exhaust Muffler of Car system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206681825U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412585A (en) * | 2018-05-16 | 2018-08-17 | 安徽全柴动力股份有限公司 | A kind of grain catcher and automobile |
| CN108868967A (en) * | 2018-07-04 | 2018-11-23 | 潘桢 | A kind of automobile silencer of excellent noise reduction effect |
-
2016
- 2016-12-30 CN CN201621480014.9U patent/CN206681825U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412585A (en) * | 2018-05-16 | 2018-08-17 | 安徽全柴动力股份有限公司 | A kind of grain catcher and automobile |
| CN108868967A (en) * | 2018-07-04 | 2018-11-23 | 潘桢 | A kind of automobile silencer of excellent noise reduction effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171128 Termination date: 20191230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |