CN109404092A - A kind of exhaust silencer and vehicle - Google Patents
A kind of exhaust silencer and vehicle Download PDFInfo
- Publication number
- CN109404092A CN109404092A CN201710706911.XA CN201710706911A CN109404092A CN 109404092 A CN109404092 A CN 109404092A CN 201710706911 A CN201710706911 A CN 201710706911A CN 109404092 A CN109404092 A CN 109404092A
- Authority
- CN
- China
- Prior art keywords
- partition
- exhaust silencer
- throttling
- section
- suppressor case
- 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.)
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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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The present invention relates to a kind of exhaust silencer and vehicles.Vehicle includes internal-combustion engine vent-pipe and exports the exhaust silencer being connected with internal-combustion engine vent-pipe, exhaust silencer includes the suppressor case with hollow chamber, suppressor case includes air inlet and air outlet, more than one partition that throttles made of resistive sound-absorbing material is equipped in the hollow chamber of suppressor case, throttling partition is equipped with the throttle orifice for the reactive muffling structure that the chamber cooperation with throttling partition two sides is mutated with Formation cross-section.Exhaust silencer of the invention passes through the setting of throttle orifice on throttling partition, so that the reactive muffling structure of the chamber Formation cross-section mutation after throttle orifice and throttling partition, carries out noise reduction for centering, low frequency；Meanwhile the partition that throttles is made of resistive sound-absorbing material, can be used to absorb sound to medium, high frequency, may be implemented to eliminate the noise to the high, medium and low frequency of internal combustion engine full working scope by the cooperation of the two.
Description
Technical field
The present invention relates to a kind of exhaust silencer and vehicles.
Background technique
For traditional exhaust silencer for internal-combustion engine, dissipative muffler and resistance can be divided into according to the difference of noise elimination mechanism
Silencer.Dissipative muffler mainly relies on the sound-absorbing material in suppressor case to eliminate the noise, using sound-absorbing material to middle and high
The preferable characteristic of frequency acoustic attenuation performance noise elimination works.But traditional sound-absorbing material is mostly sponge, foam etc., in the condition of high temperature
Or in the application environment in the subversive gas such as vapor, tail gas, sound-absorbing material can be caused to damage, influence sound-absorbing material
Service life, and sound-absorbing material is not able to satisfy the noise elimination requirement to low frequency audio.Reactive muffler is by acoustic filtering
Principle realizes noise elimination, generally comprises the suppressor case with hollow chamber, suppressor case includes air inlet and air outlet.
Such as: acoustic impedance mismatch when causing to propagate using pipeline section mutation, collateral branch's pipe and resonant cavity, to achieve the purpose that noise elimination.
But this kind of silencer centering, low frequency noise elimination effect are good, it is poor to high frequency noise elimination effect.What internal combustion engine generated during the work time
Without rule, high, medium and low frequency exists simultaneously the frequency spectrum of exhaust noise, therefore can satisfy internal combustion engine full working scope exhaust noise and disappear
The silencer of sound demand is the direction studied always in the industry.
Summary of the invention
The purpose of the present invention is to provide a kind of exhausting silencers that can be eliminated the noise to the high, medium and low frequency noise of internal combustion engine
Device；The object of the invention is also to provide a kind of vehicles using above-mentioned exhaust silencer.
To achieve the above object, exhaust silencer of the invention adopts the following technical scheme that:
Technical solution 1: exhaust silencer includes the suppressor case with hollow chamber, and suppressor case includes air inlet and goes out
Port is equipped with more than one partition that throttles made of resistive sound-absorbing material in the hollow chamber of suppressor case, and throttle partition
It is equipped with the throttle orifice for the reactive muffling structure that the chamber cooperation with throttling partition two sides is mutated with Formation cross-section.Row of the invention
Gas silencer passes through the setting of throttle orifice on throttling partition, so that the chamber Formation cross-section after throttle orifice and throttling partition is mutated
Reactive muffling structure, be used to centering, low frequency carry out noise reduction；Meanwhile the partition that throttles is made of resistive sound-absorbing material, can be used to
It absorbs sound to medium, high frequency, may be implemented to eliminate the noise to the high, medium and low frequency of internal combustion engine full working scope by the cooperation of the two.
Technical solution 2: on the basis of technical solution 1, the resistive sound-absorbing material is metal-rubber.Metal-rubber conduct
The making material of throttling partition not only has elasticity and gap since metal-rubber is suppressed after being wound by wire
Aperture is used to noise reduction, meanwhile, material is metal, for the sound-absorbing materials such as traditional sponge, has high temperature resistant, corrosion resistant
The features such as erosion, is remarkably improved service life.
Technical solution 3: on the basis of technical solution 1 or 2, the throttling partition at least there are two and along discharge directions simultaneously
Hollow chamber both ends are separated out cup and rear chamber by the setting of column interval, first and the last one throttling partition, adjacent throttling every
Inner cavity is formed between plate, the air inlet is connected with cup, and the gas outlet is connected with rear chamber.Each throttling partition is level-one
Noise elimination structure, it is multistage noise elimination that multiple throttling partitions, which are arranged, can reach the silencing function of greater degree.
Technical solution 4: on the basis of technical solution 3, interval limit is carried out by washer between adjacent throttling partition.Section
Interval limit carried out by washer between stream partition, this mode structure is simple and convenient and can be easy to disassemble, thus facilitate throttle every
The replacement of plate.
Technical solution 5: on the basis of technical solution 4, the suppressor case is tubulose variable-diameter structure, including centre
Major diameter section and the path section for being connected in major diameter section both ends, the air inlet and air outlet are respectively provided in two path sections.
Technical solution 6: on the basis of technical solution 5, the major diameter section is connected with path section by conical section, and described
One relies on two conical sections to carry out axial blocks limit respectively with the last one partition.Major diameter section and path section pass through conical section
Connection, the setting of conical section can reflect sound wave, and can carry out axial limiting to throttling partition.
Technical solution 7: on the basis of technical solution 5 or 6, the major diameter section and path section are round tube, the throttling
Partition is plectane.
Technical solution 8: on the basis of technical solution 7, major diameter section and path section coaxial arrangement, and the section on partition that throttles
Discharge orifice is located at the center of plectane.
Technical solution 9: on the basis of technical solution 1 or 2, the metal-rubber of production throttling partition is to be by string diameter
Cold stamping forms the wire of the spiral status of 0.1mm in a mold.
Vehicle of the invention adopts the following technical scheme that:
Technical solution 1: vehicle includes internal-combustion engine vent-pipe and exports the exhaust silencer being connected, exhaust with internal-combustion engine vent-pipe
Silencer includes the suppressor case with hollow chamber, and suppressor case includes air inlet and air outlet, suppressor case
More than one partition that throttles made of resistive sound-absorbing material is equipped in hollow chamber, throttling partition is equipped with and throttling partition two
The throttle orifice for the reactive muffling structure that the chamber cooperation of side is mutated with Formation cross-section.Exhaust silencer of the invention by throttling every
The setting of throttle orifice on plate, so that the reactive muffling structure of the chamber Formation cross-section mutation after throttle orifice and throttling partition, is used
Carry out centering, low frequency carries out noise reduction；Meanwhile the partition that throttles is made of resistive sound-absorbing material, can be used to absorb sound to medium, high frequency, lead to
The cooperation for crossing the two may be implemented to eliminate the noise to the high, medium and low frequency of internal combustion engine full working scope.
Technical solution 2: on the basis of technical solution 1, the resistive sound-absorbing material is metal-rubber.Metal-rubber conduct
The making material of throttling partition not only has elasticity and gap since metal-rubber is suppressed after being wound by wire
Aperture is used to noise reduction, meanwhile, material is metal, for the sound-absorbing materials such as traditional sponge, has high temperature resistant, corrosion resistant
The features such as erosion, is remarkably improved service life.
Technical solution 3: on the basis of technical solution 1 or 2, the throttling partition at least there are two and along discharge directions simultaneously
Hollow chamber both ends are separated out cup and rear chamber by the setting of column interval, first and the last one throttling partition, adjacent throttling every
Inner cavity is formed between plate, the air inlet is connected with cup, and the gas outlet is connected with rear chamber.Each throttling partition is level-one
Noise elimination structure, it is multistage noise elimination that multiple throttling partitions, which are arranged, can reach the silencing function of greater degree.
Technical solution 4: on the basis of technical solution 3, interval limit is carried out by washer between adjacent throttling partition.Section
Interval limit carried out by washer between stream partition, this mode structure is simple and convenient and can be easy to disassemble, thus facilitate throttle every
The replacement of plate.
Technical solution 5: on the basis of technical solution 4, the suppressor case is tubulose variable-diameter structure, including centre
Major diameter section and the path section for being connected in major diameter section both ends, the air inlet and air outlet are respectively provided in two path sections.
Technical solution 6: on the basis of technical solution 5, the major diameter section is connected with path section by conical section, and described
One relies on two conical sections to carry out axial blocks limit respectively with the last one partition.Major diameter section and path section pass through conical section
Connection, the setting of conical section can reflect sound wave, and can carry out axial limiting to throttling partition.
Technical solution 7: on the basis of technical solution 5 or 6, the major diameter section and path section are round tube, the throttling
Partition is plectane.
Technical solution 8: on the basis of technical solution 7, major diameter section and path section coaxial arrangement, and the section on partition that throttles
Discharge orifice is located at the center of plectane.
Technical solution 9: on the basis of technical solution 1 or 2, the metal-rubber of production throttling partition is to be by string diameter
Cold stamping forms the wire of the spiral status of 0.1mm in a mold.
Detailed description of the invention
Fig. 1 is the example structure schematic diagram of the exhaust silencer in the specific embodiment of vehicle of the invention；
In figure: 1- suppressor case, 10- air inlet, the gas outlet 20-, 30- throttle partition, 41- first inner chamber, in 42- second
Chamber, 43- third inner cavity, 50- washer, 61- cup, 62- rear chamber, 70- throttle orifice.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
For two kinds of common forms of the exhaust silencer being used on the exhaust pipe of internal combustion engine in the prior art, one is logical
Cross the dissipative muffler that sound-absorbing material carries out noise reduction, since this kind of silencer is using the sound-absorbing materials such as sponge and foam, high temperature,
It is easily damaged in corrosive environment, service life is short, and poor to the sound absorption effect of low frequency；Another kind is by the abrupt change of cross-section, side
The reactive muffler of the compositions such as branch pipe and resonant cavity, this kind of silencer are poor to the noise elimination effect of high frequency.For both silencers
The drawbacks of design a kind of new construction can by metal-rubber as sound-absorbing material using can shock absorbing characteristics to medium, high frequency into
Row is eliminated the noise, and the synthesis silencer for the full rate noise elimination that low frequency is eliminated the noise in capable of being carried out in the way of the variable diameter of section, Er Qiejin
Belonging to rubber is structure made of wire cold pressing, and there is characteristics, the service lifes such as high temperature resistant, anticorrosion significantly to increase.
The specific embodiment of vehicle of the invention, vehicle include the internal combustion engine of car body and installation on the car body, and internal combustion engine connects
It is connected to exhaust pipe, is connected with exhaust silencer on exhaust pipe, as shown in Figure 1, exhaust silencer includes suppressor case 1, is eliminated the noise
Device shell 1 is by three Duan Zucheng, respectively intermediate major diameter section and the path section for being connected to major diameter section both ends, major diameter section and path section
It is connected for the variable diameter of integral type, guarantees that connection is air tight.Major diameter section and path section are circular tube structure.The wherein path section on the left side
It is equipped with air inlet 10, air inlet 10 is connected with exhaust pipe, and the path section on the right has gas outlet 20, and the tail gas after noise elimination is from out
Port 20 is discharged.Major diameter section and the coaxial arrangement of the path section of two sides, in order to be vented and arrange.
Three inner cavities, i.e. first inner chamber 41,42 and of second inner chamber are divided by four throttling partitions 30 among major diameter section
Third inner cavity 43.Part on the left of first throttling partition is cup 61, and cup 61 is directly connected with air inlet 10；The last one
Part on the right side of throttling partition is rear chamber 62, and rear chamber 62 is directly connected with gas outlet 20.The partition 30 that throttles is by metal-rubber system
At metal-rubber is that cold stamping forms in a mold by the wire for the spiral status that string diameter is 0.1mm, the metal rubber after processing
Glue forms disk-shaped throttling partition 30, and the shape of plectane is adapted to major diameter section, i.e., the internal diameter of the outer diameter of plectane and major diameter section is suitable
Match.Washer 50 is equipped between adjacent throttling partition 30, washer 50 is respectively supported between two adjacent throttling partitions 30, with pair
The effect that two adjacent throttling partitions 30 limit.The partition 30 that throttles is equipped with throttle orifice 70, and throttle orifice 70 is located at the centre of plectane,
So as to opposite with air inlet 10 and gas outlet 20, convenient for exhaust.Since the diameter of throttle orifice 70 is than two sides inner cavity or forward and backward room 62
Small more of diameter, i.e. Formation cross-section mutation structure, so the purpose of reactive muffling can be played, in, low frequency have it is good
Noise reduction purpose；In addition, since throttling partition 30 is made of metal-rubber, on the one hand by the resistant to high temperatures of metal-rubber and corrosion
Characteristic its service life can be improved, on the other hand, since metal-rubber is suppressed by spiral helicine wire, wire
Minim gap between wire can also play the effect of aperture noise reduction.
Vehicle of the invention is in use: the exhaust of internal combustion engine enters exhaust silencer by exhaust pipe-air inlet 10
Cup 61, the vibration of gas throttle made of metal-rubber partition 30 itself shock-absorbing function and absorb, while gas from
Throttle partition 30 throttle orifice 70 and throttling partition 30 and major diameter section between fit clearance or metal-rubber wire it
Between pass through, subsequently into first inner chamber 41, the principle eliminated the noise using section variable diameter is eliminated the noise, then in turn through the second level
Noise elimination structure, third level noise elimination structure, until the purpose for playing noise reduction tail gas is discharged from gas outlet 20 later.
In other embodiments: the quantity of throttling partition made of metal-rubber also can be replaced one, two, three or
Person more, quantity is correspondingly set and is separated than few one washer of throttling partition quantity；Major diameter section, path section can not also
Coaxial arrangement, it is convenient to be arranged in curved arrangement space；The position of throttle orifice, quantity can change, and can be set multiple
Throttle orifice, arrangement can arbitrarily adjust on throttling partition；Throttling partition can not also limit fixation by washer, but
Using the mounting groove that annular is arranged in major diameter section, throttling partition is fed into mounting groove by force, carries out block limit by cell wall
Position.
Each embodiment of exhaust silencer of the invention and the exhaust silencer in each embodiment of vehicle of the invention
Each embodiment is identical, repeats no more.
Claims (10)
1. exhaust silencer, including the suppressor case with hollow chamber, suppressor case includes air inlet and air outlet,
Be characterized in, in the hollow chamber of suppressor case be equipped with more than one partition that throttles made of resistive sound-absorbing material, throttling every
Plate is equipped with the throttle orifice for the reactive muffling structure that the chamber cooperation with throttling partition two sides is mutated with Formation cross-section.
2. exhaust silencer according to claim 1, characterized in that the resistive sound-absorbing material is metal-rubber.
3. exhaust silencer according to claim 1 or 2, characterized in that the throttling partition at least there are two and along row
Gas direction is spaced setting side by side, and hollow chamber both ends are separated out cup and rear chamber, phase with the last one throttling partition by first
Inner cavity is formed between neighbour's throttling partition, the air inlet is connected with cup, and the gas outlet is connected with rear chamber.
4. exhaust silencer according to claim 3, characterized in that be spaced between adjacent throttling partition by washer
Limit.
5. exhaust silencer according to claim 4, characterized in that the suppressor case is tubulose variable-diameter structure, packet
It includes the major diameter section of centre and is connected in the path section at major diameter section both ends, the air inlet and air outlet are respectively provided at two path sections
On.
6. exhaust silencer according to claim 5, characterized in that the major diameter section and path section are connected by conical section
It connects, described first relies on two conical sections to carry out axial blocks limit respectively with the last one partition.
7. exhaust silencer according to claim 5 or 6, characterized in that the major diameter section and path section are round tube, institute
Stating throttling partition is plectane.
8. exhaust silencer according to claim 7, characterized in that major diameter section and path section coaxial arrangement, and throttle every
Throttle orifice on plate is located at the center of plectane.
9. exhaust silencer according to claim 1 or 2, characterized in that the metal-rubber of production throttling partition is by silk
Cold stamping forms the wire of spiral status that diameter is 0.1mm in a mold.
10. vehicle exports the exhaust silencer being connected, exhaust silencer including internal-combustion engine vent-pipe and with internal-combustion engine vent-pipe
Including the suppressor case with hollow chamber, suppressor case includes air inlet and air outlet, characterized in that suppressor case
Hollow chamber in be equipped with more than one partition that throttles made of resistive sound-absorbing material, throttling partition be equipped with and throttling partition
The throttle orifice for the reactive muffling structure that the chamber cooperation of two sides is mutated with Formation cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706911.XA CN109404092A (en) | 2017-08-17 | 2017-08-17 | A kind of exhaust silencer and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706911.XA CN109404092A (en) | 2017-08-17 | 2017-08-17 | A kind of exhaust silencer and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109404092A true CN109404092A (en) | 2019-03-01 |
Family
ID=65454995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710706911.XA Pending CN109404092A (en) | 2017-08-17 | 2017-08-17 | A kind of exhaust silencer and vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN109404092A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112237409A (en) * | 2019-07-17 | 2021-01-19 | 广东美的白色家电技术创新中心有限公司 | Dish washer is with exhaust subassembly and dish washer |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726359A (en) * | 1970-04-22 | 1973-04-10 | Isobertech Grassmann H | Muffler for flowing gases |
| DE2553280A1 (en) * | 1975-11-27 | 1977-06-02 | Stefan Graichen | Silencer for vehicle combustion engine - has resilient material construction with inlet and/or outlet closed by resilient flaps |
| SU1368450A1 (en) * | 1986-06-17 | 1988-01-23 | Всесоюзный Научно-Исследовательский Институт Легкого И Текстильного Машиностроения | Noise muffler |
| CN200975275Y (en) * | 2006-08-18 | 2007-11-14 | 姜建波 | combination type exhausting silencer for gas engine |
| KR20120121437A (en) * | 2011-04-27 | 2012-11-06 | 김영선 | Muffler-Structure for Internal-Combustion Engine |
| CN103939179A (en) * | 2014-04-28 | 2014-07-23 | 成都陵川特种工业有限责任公司 | Impedance compound silencer good in silencing performance |
| CN104832247A (en) * | 2015-04-29 | 2015-08-12 | 麦克维尔空调制冷(武汉)有限公司 | Exhaust silencer for screw-type unit |
| CN105201591A (en) * | 2015-10-12 | 2015-12-30 | 无锡市惠山合力传热设备厂 | Exhaust silencer |
| RU2594088C1 (en) * | 2015-09-08 | 2016-08-10 | Мария Олеговна Стареева | Active noise suppressor of industrial vacuum cleaner |
-
2017
- 2017-08-17 CN CN201710706911.XA patent/CN109404092A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726359A (en) * | 1970-04-22 | 1973-04-10 | Isobertech Grassmann H | Muffler for flowing gases |
| DE2553280A1 (en) * | 1975-11-27 | 1977-06-02 | Stefan Graichen | Silencer for vehicle combustion engine - has resilient material construction with inlet and/or outlet closed by resilient flaps |
| SU1368450A1 (en) * | 1986-06-17 | 1988-01-23 | Всесоюзный Научно-Исследовательский Институт Легкого И Текстильного Машиностроения | Noise muffler |
| CN200975275Y (en) * | 2006-08-18 | 2007-11-14 | 姜建波 | combination type exhausting silencer for gas engine |
| KR20120121437A (en) * | 2011-04-27 | 2012-11-06 | 김영선 | Muffler-Structure for Internal-Combustion Engine |
| CN103939179A (en) * | 2014-04-28 | 2014-07-23 | 成都陵川特种工业有限责任公司 | Impedance compound silencer good in silencing performance |
| CN104832247A (en) * | 2015-04-29 | 2015-08-12 | 麦克维尔空调制冷(武汉)有限公司 | Exhaust silencer for screw-type unit |
| RU2594088C1 (en) * | 2015-09-08 | 2016-08-10 | Мария Олеговна Стареева | Active noise suppressor of industrial vacuum cleaner |
| CN105201591A (en) * | 2015-10-12 | 2015-12-30 | 无锡市惠山合力传热设备厂 | Exhaust silencer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112237409A (en) * | 2019-07-17 | 2021-01-19 | 广东美的白色家电技术创新中心有限公司 | Dish washer is with exhaust subassembly and dish washer |
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Application publication date: 20190301 |