CN108223057A - Exhaust tube silencer - Google Patents
Exhaust tube silencer Download PDFInfo
- Publication number
- CN108223057A CN108223057A CN201810049173.0A CN201810049173A CN108223057A CN 108223057 A CN108223057 A CN 108223057A CN 201810049173 A CN201810049173 A CN 201810049173A CN 108223057 A CN108223057 A CN 108223057A
- Authority
- CN
- China
- Prior art keywords
- orifice plate
- air inlet
- inlet pipe
- cylinder
- right end
- 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
- 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
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
-
- 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
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
-
- 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
- F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
-
- 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/007—Apparatus used as intake or exhaust silencer
-
- 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
- F01N2210/00—Combination of methods of silencing
- F01N2210/02—Resonance and interference
-
- 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
- F01N2210/00—Combination of methods of silencing
- F01N2210/04—Throttling-expansion and resonance
-
- 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
- F01N2210/00—Combination of methods of silencing
- F01N2210/06—Throttling-expansion and interference
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/02—Tubes being perforated
Abstract
The present invention discloses a kind of exhaust tube silencer, it is related to auto-parts field, including cylinder, the cylinder is provided at both ends with end cap, the cylinder both ends have been respectively communicated with air inlet pipe, exhaust pipe, the air inlet pipe right end is extended in cylinder and embarked on journey on wall is provided with stomata in column, the air inlet pipe right end is provided with baffle, the air inlet pipe right end also coaxial line is connected with coupling tube, it also embarks on journey on the wall of the coupling tube left end and is provided with stomata in column, the air inlet pipe and coupling tube junction are further sleeved with resonantron, the resonantron and air inlet pipe, cavity is formed between coupling tube, the stomata is respectively positioned in cavity, the first orifice plate is additionally provided in the cylinder, the coupling tube right end passes through the first orifice plate, the exhaust pipe passes through the first orifice plate to the left, it is simple in structure, noise elimination effect is good, it can realize multiple expansion.
Description
Technical field
The present invention relates to auto-parts field more particularly to the silencers mounted on exhaust tube tail portion.
Background technology
With the development of life, traffic is increasingly flourishing, and automobile is universal, and the type of automobile is more, is installed on automobile
There is silencer, silencer is that air-flow is allowed to pass through, but can prevent or reduce a kind of device of sound transmission, is to eliminate air
The important measures of Aerodynamic Noise of A.Silencer can stop the propagation of sound wave, and air-flow is allowed to pass through, and be the effective work for controlling noise
Tool, silencer have dissipative muffler, reactive muffler, resistance silencer；Dissipative muffler is Commercial cultivation sound wave porous
Property sound-absorbing material or sound absorption structure in propagate, because friction acoustic energy is converted into thermal energy due to dissipate, make the noise along pipe transmmision
Decay with distance, so as to reach the silencer of noise elimination purpose；Reactive muffler be production by the mutation of pipeline section or
Side connects resonant cavity etc. and causes the change of impedance during acoustic propagation and generate the reflection of acoustic energy, interference, so as to reduce by eliminating the noise
Acoustic energy from device to external radiation, to reach the silencer of noise elimination purpose.
Existing silencer mainly includes cylinder, and the cylinder is provided at both ends with end cap, and the cylinder both ends are respectively communicated with
There are air inlet pipe, exhaust pipe, when in use, since gas flow temperature is high, flow velocity is fast, gas circuit is changed by the diffusion of cylinder, into
And achieving the effect that noise elimination, but only by One Diffusion Process, noise elimination effect is poor.
Invention content
It is an object of the invention to overcome deficiency of the prior art, provide it is a kind of it is simple in structure, noise elimination effect is good, can
Realize the exhaust tube silencer repeatedly expanded.
The present invention is achieved by the following technical solutions：A kind of exhaust tube silencer, including cylinder, the cylinder both ends
Be provided with end cap, the cylinder both ends have been respectively communicated with air inlet pipe, exhaust pipe, the air inlet pipe right end extend in cylinder and
It embarks on journey on wall and is provided with stomata in column, the air inlet pipe right end is provided with baffle, and the air inlet pipe right end also coaxial line was connected with
Pipe is crossed, also embarks on journey on the wall of the coupling tube left end and is provided with stomata in column, the air inlet pipe and coupling tube junction are further sleeved with
Resonantron forms cavity between the resonantron and air inlet pipe, coupling tube, the stomata is respectively positioned in cavity, in the cylinder
The first orifice plate is additionally provided with, the coupling tube right end passes through the first orifice plate, and the exhaust pipe passes through the first orifice plate to the left.
Further, the air inlet pipe is identical with coupling tube caliber, between the resonance inside pipe wall and air inlet pipe outer wall
Distance is 12-20mm, the coupling tube left end and the air inlet seal of tube, the coupling tube right end and the first pore plate by sealing.
Further, cover board is also connected with by the support plate of annular on the right side of first orifice plate.
Further, the inner barrel left end is provided with the second orifice plate, and the air inlet pipe passes through the second orifice plate, the row
Tracheae passes through the second orifice plate to the left, and the exhaust pipe is embarked on journey the row of being provided in column on the wall between the first orifice plate and the second orifice plate
Stomata.
Further, the cylinder section is ellipse, and the first orifice plate, the second orifice plate and cover board are also configured as ellipse,
The edge of a wing for being connect with cylinder inboard wall is both provided at first orifice plate, the second orifice plate and cover board outer rim.
Further, it embarks on journey on the wall of the exhaust pipe right end and is provided with expanded bore in column, the expanded bore is connected to lid
Between plate and the end cap of right end in space.
The beneficial effects of the present invention are：Coupling tube, baffle, resonantron are set, barrier effect can be played, reduces air-flow
Flow velocity, while air-flow is expanded through air passing hole, is compressed, and changes airstream vibration state, plays the effect of noise elimination；First orifice plate is set
Air-flow can be turned round, change airflow direction, reduce wind speed, while multiply can be divided the flow into, multiply air-flow interferes with each other,
And expanded, noise is reduced, air-flow expands noise elimination between the first orifice plate and cover board；Second orifice plate is set, air inlet can be made
Pipe, exhaust pipe, coupling tube fixation are more secured, reduce influence of the vibration to silencer, improve service life, air-flow is through the second orifice plate
Exhaust pipe is flowed into after expansion, the air-flow with entering exhaust pipe by gas vent mutually resists, and reduces noise, sets silencing cotton, Neng Gouyou
The sound absorption of effect.
Description of the drawings
Fig. 1 is exhaust tube silencer main view sectional view schematic diagram；
Fig. 2 is the first orifice plate right view schematic diagram；
Fig. 3 is exhaust tube silencer left view schematic diagram；
Wherein：1- cylinders, 2- end caps, the first orifice plates of 3-, 4- cover boards, 5- air inlet pipe, 6- exhaust pipes, 7- coupling tubes, 8- baffles, 9-
Stomata, the second orifice plates of 10-, 11- resonantrons, 12- gas vents, 13- support plates, the 14- edges of a wing, 15- expanded bores, 16- silencing cottons.
Specific embodiment
Technical scheme of the present invention is illustrated below in conjunction with specific embodiment.
Embodiment 1
As shown in Figs. 1-3, a kind of exhaust tube silencer, including the cylinder 1 section for ellipse, cylinder 1 is 2-3mm's by thickness
The stainless steel system of enclosing is welded, and 1 both ends sealing welding of cylinder has end cap 2, and 1 both ends of cylinder have been respectively communicated with air inlet pipe 5, exhaust pipe
6,5 right end of air inlet pipe is extended in cylinder 1 and embarked on journey on wall is provided with stomata 9 in column, and 5 right end sealing welding of air inlet pipe has baffle
8,5 right end of air inlet pipe also coaxial line is connected with coupling tube 7, and air inlet pipe 5 is identical with 7 diameter of coupling tube, on the wall of 7 left end of coupling tube
Also it embarks on journey and is provided with stomata in column, air inlet pipe 5 and 7 junction of coupling tube are further sleeved with resonantron 11,11 inner wall of resonantron and air inlet
The distance between 5 outer wall of pipe is 20mm, cavity is formed between resonantron 11 and air inlet pipe 5, coupling tube 7, stomata is respectively positioned on cavity
It is interior, the first orifice plate 3 is also equipped in cylinder 1,7 left end of coupling tube is sealed with air inlet pipe 5, and 7 right end of coupling tube and the first orifice plate 3 are close
Envelope, 7 right end of coupling tube pass through the first orifice plate 3, and exhaust pipe 6 passes through the first orifice plate 3 to the left, and 3 right side of the first orifice plate also passes through annular
Support plate 13 be connected with cover board 4, support plate 13 is made of orifice plate, and 1 inside left end of cylinder is equipped with the second orifice plate 10, air inlet pipe
5 pass through the second orifice plate 10, and exhaust pipe 6 passes through the second orifice plate 10 to the left, exhaust pipe 6 be located at the first orifice plate 3 and the second orifice plate 10 it
Between wall on embark on journey and be provided with gas vent 12 in column, embark on journey on the wall of 6 right end of exhaust pipe and be provided with expanded bore 15 in column, expanded bore 15 connects
It passes in the space between cover board and right end end cap.
It is filled between left end end cap and the second orifice plate, between the first orifice plate and cover board, between cover board and right end end cap
Silencing cotton 16.
End cap, the first orifice plate, the second orifice plate, cover board are disposed as ellipse, end cap, the first orifice plate, the second orifice plate, cover board
Outer rim is integrally formed with the edge of a wing 14 of annular, and end cap between the edge of a wing and cylinder inboard wall by being welded and fixed, the first orifice plate, second
Orifice plate, cover board support cylinder by the edge of a wing, prevent barrel distortion.
The process of the present embodiment is as follows：Air inlet pipe, coupling tube, resonantron, exhaust pipe are first intercepted, in air inlet pipe, row
Air inlet pipe, coupling tube, baffle are welded into prefabricated pipe, resonantron then are weldingly fixed on air inlet by trepanning on tracheae, coupling tube
Outside pipe and coupling tube, by being punched compression molding end cap, the first orifice plate, the second orifice plate, cover board, by end cap, the first orifice plate, second
Orifice plate, cover board are parallel to be fixed on mold, is installed and is welded and fixed prefabricated pipe and exhaust pipe, then by resonantron and the first orifice plate
Sealing welding obtains core, and the stainless steel plate cut out finally is wrapped up core, and the welded seal at steel plate docking, and coating is close
The cylinder inboard wall that end cap and steel plate surround finally is welded and coats fluid sealant, obtains finished product exhaust tube silencer by sealing.
The operation principle of the present embodiment is as follows：High-temperature high-pressure air flow enters through air inlet pipe, then enters through stomata, cavity
It crosses in pipe, completes expansion for the first time, compression, reduce wind speed, air-flow enters the space between the first orifice plate and cover board through coupling tube
It is interior, it completes second and expands, then the hole through orifice plate enters in the space between the first orifice plate and the second orifice plate, completes third time
Expansion, wind speed, which reduces wind pressure, to be increased, and fraction enters exhaust pipe, also fraction after the 4th expansion of the first orifice plate
Enter exhaust pipe after the 4th expansion of gas vent, two parts air-flow interferes with each other in exhaust pipe, reduces noise, air-flow warp
Part enters in the space between cover board and right end end cap when crossing expanded bore, is absorbed sound by silencing cotton.
The present embodiment combines resistance noise reduction and reactive muffling, is set by rational pipeline, can effectively eliminate vapour
Vehicle exhaust noise.
Claims (7)
1. a kind of exhaust tube silencer, including cylinder, the cylinder is provided at both ends with end cap, and the cylinder both ends have been respectively communicated with
Air inlet pipe, exhaust pipe, it is characterised in that：The air inlet pipe right end is extended in cylinder and embarked on journey on wall is provided with stomata in column,
The air inlet pipe right end is provided with baffle, and the air inlet pipe right end also coaxial line is connected with coupling tube, the coupling tube left end
Also embark on journey on wall and be provided with stomata in column, the air inlet pipe and coupling tube junction are further sleeved with resonantron, the resonantron with into
Cavity is formed between tracheae, coupling tube, the stomata is respectively positioned in cavity, and the first orifice plate is additionally provided in the cylinder, described
Coupling tube right end passes through the first orifice plate, and the exhaust pipe passes through the first orifice plate to the left.
2. exhaust tube silencer according to claim 1, it is characterised in that：The air inlet pipe is identical with coupling tube caliber,
The distance between the inside pipe wall and air inlet pipe outer wall of resonating is 12-20mm, and the coupling tube left end and the air inlet seal of tube are described
Coupling tube right end and the first pore plate by sealing.
3. exhaust tube silencer according to claim 1, it is characterised in that：Also pass through annular on the right side of first orifice plate
Support plate is connected with cover board.
4. exhaust tube silencer according to claim 3, it is characterised in that：The inner barrel left end is provided with the second hole
Plate, the air inlet pipe pass through the second orifice plate, the exhaust pipe to the left pass through the second orifice plate, the exhaust pipe be located at the first orifice plate with
It embarks on journey on wall between second orifice plate and is provided with gas vent in column.
5. exhaust tube silencer according to claim 4, it is characterised in that：The cylinder section is oval, the first hole
Plate, the second orifice plate and cover board are also configured as ellipse, are both provided with and are used at first orifice plate, the second orifice plate and cover board outer rim
The edge of a wing being connect with cylinder inboard wall.
6. exhaust tube silencer according to claim 5, it is characterised in that：It embarks on journey in column on the wall of the exhaust pipe right end
Expanded bore is provided with, the expanded bore is connected between cover board and the end cap of right end in space.
7. exhaust tube silencer according to claim 6, it is characterised in that：Between left end end cap and the second orifice plate, first
Silencing cotton is both provided between orifice plate and cover board, between cover board and right end end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810049173.0A CN108223057A (en) | 2018-01-18 | 2018-01-18 | Exhaust tube silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810049173.0A CN108223057A (en) | 2018-01-18 | 2018-01-18 | Exhaust tube silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223057A true CN108223057A (en) | 2018-06-29 |
Family
ID=62667932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810049173.0A Pending CN108223057A (en) | 2018-01-18 | 2018-01-18 | Exhaust tube silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223057A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549027A (en) * | 2019-09-12 | 2019-12-10 | 无锡威孚力达催化净化器有限责任公司 | Post-treatment silencer cylinder body, end cover and pipe combined welding method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1578992A (en) * | 1976-08-31 | 1980-11-12 | Nihon Radiator Co | Muffler |
| JPS57210118A (en) * | 1981-06-19 | 1982-12-23 | Suzuki Motor Co Ltd | Muffler for internal combustion engine |
| CN200978697Y (en) * | 2006-11-22 | 2007-11-21 | 长春市鸿达汽车零部件有限责任公司 | Automobile engine exhaust silencer |
| CN201367931Y (en) * | 2009-01-12 | 2009-12-23 | 昆明通晟汽车配件有限责任公司 | Impedance composite high-efficient engine muffler |
| CN202578840U (en) * | 2012-05-29 | 2012-12-05 | 重庆长安汽车股份有限公司 | Automobile exhaust silencer |
| CN204591402U (en) * | 2015-01-14 | 2015-08-26 | 四川汽车工业股份有限公司 | A kind of exhaust silencer for turbosupercharged engine |
| CN204716341U (en) * | 2015-04-09 | 2015-10-21 | 北京市通州迪拉汽车附件有限公司 | Baffler before automobile |
| CN206830266U (en) * | 2017-05-23 | 2018-01-02 | 浙江威罗德汽配科技有限公司 | Automobile exhaust muffler pipe |
-
2018
- 2018-01-18 CN CN201810049173.0A patent/CN108223057A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1578992A (en) * | 1976-08-31 | 1980-11-12 | Nihon Radiator Co | Muffler |
| JPS57210118A (en) * | 1981-06-19 | 1982-12-23 | Suzuki Motor Co Ltd | Muffler for internal combustion engine |
| CN200978697Y (en) * | 2006-11-22 | 2007-11-21 | 长春市鸿达汽车零部件有限责任公司 | Automobile engine exhaust silencer |
| CN201367931Y (en) * | 2009-01-12 | 2009-12-23 | 昆明通晟汽车配件有限责任公司 | Impedance composite high-efficient engine muffler |
| CN202578840U (en) * | 2012-05-29 | 2012-12-05 | 重庆长安汽车股份有限公司 | Automobile exhaust silencer |
| CN204591402U (en) * | 2015-01-14 | 2015-08-26 | 四川汽车工业股份有限公司 | A kind of exhaust silencer for turbosupercharged engine |
| CN204716341U (en) * | 2015-04-09 | 2015-10-21 | 北京市通州迪拉汽车附件有限公司 | Baffler before automobile |
| CN206830266U (en) * | 2017-05-23 | 2018-01-02 | 浙江威罗德汽配科技有限公司 | Automobile exhaust muffler pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549027A (en) * | 2019-09-12 | 2019-12-10 | 无锡威孚力达催化净化器有限责任公司 | Post-treatment silencer cylinder body, end cover and pipe combined welding method |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20180629 |