CN108979816A - A kind of silencing apparatus reducing I. C. engine exhaust noise - Google Patents
A kind of silencing apparatus reducing I. C. engine exhaust noise Download PDFInfo
- Publication number
- CN108979816A CN108979816A CN201810939542.3A CN201810939542A CN108979816A CN 108979816 A CN108979816 A CN 108979816A CN 201810939542 A CN201810939542 A CN 201810939542A CN 108979816 A CN108979816 A CN 108979816A
- Authority
- CN
- China
- Prior art keywords
- baffle
- dashpot
- shell
- air
- engine exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- 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
- 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
-
- 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
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/084—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases flowing through the silencer two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of silencing apparatus for reducing I. C. engine exhaust noise, including shell, the shell includes inner housing and outer housing, cavity is formed between the inner housing and outer housing, is equipped with air inlet pipe on the left of the shell, the air inlet pipe protrudes into housing cavity, the housing cavity is equipped with first baffle, the first baffle left side central portion is equipped with dashpot, and the dashpot and air inlet pipe are located in same level, and the dashpot is surrounded by hush tube.Pass through the setting of dashpot, so that air-flow plays the role of buffering when coming out from air inlet pipe, so that air-flow circulates decrease noise on the left of first baffle, pass through the setting of dashpot inner surface acoustical cotton, when air-flow passes to dashpot, plays the role of absorbing noise, pass through the setting of hush tube, air-flow is passed to the right side of first baffle on the left of first baffle, by the setting of the first sound attenuation hole, it may make hush tube interior air-flow energy constantly to decay, play the role of noise elimination.
Description
Technical field
The present invention relates to technical field of internal combustion engines, specially a kind of silencing apparatus for reducing I. C. engine exhaust noise.
Background technique
Internal combustion engine during the work time, can burn and generate large quantity of exhaust gas, these exhaust gas main components are carbon dioxide, in order to
It avoids the internal fuel gas buring chamber subsequent combustion of exhaust gas from impacting, needs for exhaust gas to be quickly discharged, since offgas discharge amount is big, because
Biggish noise can be usually generated when this exhaust, in order to avoid these noises pollute, needs to reduce the decibel of exhaust sound.It is existing
Some exhaust silencers need to be arranged longer silencing channel and carry out noise reduction, consume the sound energy of exhaust, avoid noise, logical due to eliminating the noise
Road is longer, therefore the usual figure of existing exhaust silencer is larger, and installation is inconvenient, and the not refrigerating function of gas, due to
The gas temperature being discharged in internal combustion engine is excessively high, is easy to hurt sb.'s feelings.For this purpose, we release a kind of noise elimination for reducing I. C. engine exhaust noise
Device.
Summary of the invention
The purpose of the present invention is to provide a kind of silencing apparatus for reducing I. C. engine exhaust noise, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme: a kind of noise elimination dress for reducing I. C. engine exhaust noise
It sets, including shell, the shell includes inner housing and outer housing, and cavity, the shell are formed between the inner housing and outer housing
Air inlet pipe is equipped on the left of body, the air inlet pipe protrudes into housing cavity, and the housing cavity is equipped with first baffle, the first baffle
Left side central portion is equipped with dashpot, and the dashpot and air inlet pipe are located in same level, and the dashpot is surrounded by noise elimination
Pipe, the hush tube are crossed in first baffle, and the right side of the hush tube is equipped with second baffle, are equipped on the right side of the second baffle
Escape pipe, the escape pipe stretch out shell right hand external.
Preferably, the dashpot inner surface is equipped with acoustical cotton.
Preferably, the noise elimination pipe surface is equipped with the first sound attenuation hole.
Preferably, the outer housing is equipped with inlet and outlet, is equipped with valve in the inlet and outlet.
Preferably, it is connected between the dashpot and first baffle by spring.
Preferably, the second baffle surface is equipped with the second sound attenuation hole.
Compared with prior art, the beneficial effects of the present invention are: the present invention flow direction changeable by entire air-flow, so that sound
It can significantly weaken, have the function that noise reduction, whole device is small in size, facilitates installation, by the setting of dashpot, so that air-flow
When coming out from air inlet pipe, play the role of buffering, so that air-flow circulates decrease noise on the left of first baffle, by slow
The setting of jet-bedding inner surface acoustical cotton is played the role of absorbing noise, passes through setting for hush tube when air-flow passes to dashpot
It sets, air-flow is passed to the right side of first baffle on the left of first baffle, by the setting of the first sound attenuation hole, may make hush tube
Interior air-flow energy is constantly decayed, and noise elimination is played the role of, by the setting of the second sound attenuation hole of second baffle surface, so that air-flow is logical
The right side that sound attenuation hole passes to second baffle is crossed, is spread out of by escape pipe, by the setting of cavity between inner housing and outer housing, is led to
Coolant liquid can be injected into cavity by crossing water inlet, during so that air-flow flows in shell, played cooling effect, prevented
Because effluent air temp is excessively high, scald arrives other people.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is first baffle of the present invention and dashpot structural schematic diagram；
Fig. 3 is present invention left side the schematic diagram of the section structure.
In figure: 1 shell, 101 inner housings, 102 outer housings, 103 cavitys, 2 air inlet pipe, 3 first baffles, 4 dashpots, 5 disappear
Sound pipe, 6 second baffles, 7 escape pipes, 8 acoustical cottons, 9 first sound attenuation holes, 10 water inlets, 11 water outlets, 12 valves, 13 springs, 14
Second sound attenuation hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of silencing apparatus reducing I. C. engine exhaust noise,
Including shell 1, the shell 1 includes inner housing 101 and outer housing 102, is formed between the inner housing 101 and outer housing 102
Cavity 103, is equipped with air inlet pipe 2 on the left of the shell 1, and the air inlet pipe 2 protrudes into 1 inner cavity of shell, and 1 inner cavity of shell is equipped with the
One baffle 3,3 left side central portion of first baffle are equipped with dashpot 4, and the dashpot 4 is located at same level with air inlet pipe 2
On, the dashpot 4 is surrounded by hush tube 5, and the hush tube 5 is crossed in first baffle 3, and the right side of the hush tube 5 is set
There is second baffle 6, escape pipe 7 is equipped on the right side of the second baffle 6, the escape pipe 7 stretches out 1 right hand external of shell.
Specifically, 4 inner surface of dashpot is equipped with acoustical cotton 8, by the setting of dashpot 4, so that air-flow is first
Decrease noise is circulated on the left of baffle 3, by the setting of acoustical cotton 8, when air-flow passes to dashpot 4, plays absorption noise
Effect.
It may make and disappear by the setting of the first sound attenuation hole 9 specifically, 5 surface of hush tube is equipped with the first sound attenuation hole 9
The acoustic wave energy of gas is constantly decayed in sound pipe 5, plays the role of noise elimination.
Specifically, the outer housing 102 is equipped with water inlet 10 and water outlet 11, on the water inlet 10 and water outlet 11
It is equipped with valve 12, by the setting of water inlet 10 and water outlet 11, coolant liquid can be injected into cavity 103, in the mistake of noise elimination
Cooling effect is played in journey to gas, prevents gas temperature excessively high, discharge damages other people.
Specifically, connected between the dashpot 4 and first baffle 3 by spring 13, by the setting of spring 13, so that
Gas plays buffer function when rushing at dashpot 4, to dashpot 4.
Specifically, 6 surface of second baffle is equipped with the second sound attenuation hole 14.
Specifically, in use, air-flow enters 1 inner cavity of shell by air inlet pipe 2, by the setting of dashpot 4, so that air-flow
When being come out from air inlet pipe 2, plays the role of buffering, so that air-flow circulates decrease noise on the left of first baffle 3, pass through
The setting of 4 inner surface acoustical cotton 8 of dashpot is played the role of absorbing noise, passes through hush tube 5 when air-flow passes to dashpot 4
Setting, air-flow is passed to the right side of first baffle 3 from the left side of first baffle 3, by the setting of the first sound attenuation hole 9, can be made
It obtains 5 interior air-flow energy of hush tube constantly to decay, plays the role of noise elimination, pass through setting for 6 the second sound attenuation hole of surface 14 of second baffle
It sets, so that air-flow passes to the right side of second baffle 6 by sound attenuation hole 14, is spread out of by escape pipe 7, by inner housing 101 and outside
The setting of cavity 103 between shell 102 can inject coolant liquid into cavity 103 by water inlet 10, so that air-flow is in shell 1
During interior flowing, cooling effect is played, is prevented because effluent air temp is excessively high, scald arrives other people.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of silencing apparatus for reducing I. C. engine exhaust noise, including shell (1), it is characterised in that: the shell (1) includes
Inner housing (101) and outer housing (102) form cavity (103) between the inner housing (101) and outer housing (102), the shell
Air inlet pipe (2) are equipped on the left of body (1), the air inlet pipe (2) protrudes into shell (1) inner cavity, and shell (1) inner cavity is equipped with first gear
Plate (3), first baffle (3) left side central portion are equipped with dashpot (4), and the dashpot (4) and air inlet pipe (2) are located at same water
In plane, the dashpot (4) is surrounded by hush tube (5), and the hush tube (5) is crossed in first baffle (3), the noise elimination
The right side for managing (5) is equipped with second baffle (6), is equipped with escape pipe (7) on the right side of the second baffle (6), and the escape pipe (7) is stretched out
Shell (1) right hand external.
2. a kind of silencing apparatus for reducing I. C. engine exhaust noise according to claim 1, it is characterised in that: the buffering
Slot (4) inner surface is equipped with acoustical cotton (8).
3. a kind of silencing apparatus for reducing I. C. engine exhaust noise according to claim 1, it is characterised in that: the noise elimination
It manages (5) surface and is equipped with the first sound attenuation hole (9).
4. a kind of silencing apparatus for reducing I. C. engine exhaust noise according to claim 1, it is characterised in that: the shell
Body (102) is equipped with water inlet (10) and water outlet (11), is equipped with valve on the water inlet (10) and water outlet (11)
(12).
5. a kind of silencing apparatus for reducing I. C. engine exhaust noise according to claim 1, it is characterised in that: the buffering
It is connect between slot (4) and first baffle (3) by spring (13).
6. a kind of silencing apparatus for reducing I. C. engine exhaust noise according to claim 1, it is characterised in that: described second
Baffle (6) surface is equipped with the second sound attenuation hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810939542.3A CN108979816A (en) | 2018-08-17 | 2018-08-17 | A kind of silencing apparatus reducing I. C. engine exhaust noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810939542.3A CN108979816A (en) | 2018-08-17 | 2018-08-17 | A kind of silencing apparatus reducing I. C. engine exhaust noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108979816A true CN108979816A (en) | 2018-12-11 |
Family
ID=64553907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810939542.3A Pending CN108979816A (en) | 2018-08-17 | 2018-08-17 | A kind of silencing apparatus reducing I. C. engine exhaust noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108979816A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253287A (en) * | 2020-10-21 | 2021-01-22 | 安徽天沃重工机械有限公司 | Noise-proof diesel engine for agricultural machinery |
| CN113153504A (en) * | 2021-04-26 | 2021-07-23 | 湖州新兴汽车部件有限公司 | Low-noise automobile exhaust silencer without accumulated water |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118820U (en) * | 1992-01-28 | 1992-10-14 | 鄂西自治州凤凰消声器厂 | Purifying and silencing device for ic engine |
| CN1197885A (en) * | 1998-01-21 | 1998-11-04 | 干方飞 | Exhaust muffler for internal combustion engine |
| CN2413028Y (en) * | 2000-03-14 | 2001-01-03 | 袁建新 | Exhaust silencer for low-noise diesel internal combustion engine |
| CN2605384Y (en) * | 2002-08-12 | 2004-03-03 | 张水成 | Exhaust silencer for internal combustion engine |
| CN2869336Y (en) * | 2005-11-25 | 2007-02-14 | 华南理工大学 | Exhaust pipe silencer for internal combustion engine |
| CN201246208Y (en) * | 2008-08-13 | 2009-05-27 | 济南吉美乐电源技术有限公司 | Internal combustion engine liquid cooling silencer |
| CN103742244A (en) * | 2014-01-29 | 2014-04-23 | 广西玉柴机器股份有限公司 | Exhaust connection pipe of internal combustion engine |
| CN105201591A (en) * | 2015-10-12 | 2015-12-30 | 无锡市惠山合力传热设备厂 | Exhaust silencer |
| CN205805665U (en) * | 2016-06-01 | 2016-12-14 | 山东商业职业技术学院 | A kind of sound eliminator for automobile with Intelligent drainage device |
-
2018
- 2018-08-17 CN CN201810939542.3A patent/CN108979816A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118820U (en) * | 1992-01-28 | 1992-10-14 | 鄂西自治州凤凰消声器厂 | Purifying and silencing device for ic engine |
| CN1197885A (en) * | 1998-01-21 | 1998-11-04 | 干方飞 | Exhaust muffler for internal combustion engine |
| CN2413028Y (en) * | 2000-03-14 | 2001-01-03 | 袁建新 | Exhaust silencer for low-noise diesel internal combustion engine |
| CN2605384Y (en) * | 2002-08-12 | 2004-03-03 | 张水成 | Exhaust silencer for internal combustion engine |
| CN2869336Y (en) * | 2005-11-25 | 2007-02-14 | 华南理工大学 | Exhaust pipe silencer for internal combustion engine |
| CN201246208Y (en) * | 2008-08-13 | 2009-05-27 | 济南吉美乐电源技术有限公司 | Internal combustion engine liquid cooling silencer |
| CN103742244A (en) * | 2014-01-29 | 2014-04-23 | 广西玉柴机器股份有限公司 | Exhaust connection pipe of internal combustion engine |
| CN105201591A (en) * | 2015-10-12 | 2015-12-30 | 无锡市惠山合力传热设备厂 | Exhaust silencer |
| CN205805665U (en) * | 2016-06-01 | 2016-12-14 | 山东商业职业技术学院 | A kind of sound eliminator for automobile with Intelligent drainage device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253287A (en) * | 2020-10-21 | 2021-01-22 | 安徽天沃重工机械有限公司 | Noise-proof diesel engine for agricultural machinery |
| CN113153504A (en) * | 2021-04-26 | 2021-07-23 | 湖州新兴汽车部件有限公司 | Low-noise automobile exhaust silencer without accumulated water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20181211 |
|
| RJ01 | Rejection of invention patent application after publication |