CN205823380U - A kind of automobile engine to exhaust deafener - Google Patents
A kind of automobile engine to exhaust deafener Download PDFInfo
- Publication number
- CN205823380U CN205823380U CN201620624032.3U CN201620624032U CN205823380U CN 205823380 U CN205823380 U CN 205823380U CN 201620624032 U CN201620624032 U CN 201620624032U CN 205823380 U CN205823380 U CN 205823380U
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- Prior art keywords
- air inlet
- housing
- dividing plate
- pipe
- inlet pipe
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- 230000008676 import Effects 0.000 claims abstract 2
- 239000012528 membrane Substances 0.000 claims description 24
- 229920000742 Cotton Polymers 0.000 claims description 5
- 230000030279 gene silencing Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 210000003437 trachea Anatomy 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 238000005457 optimization Methods 0.000 abstract description 4
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of automobile engine to exhaust deafener, the air inlet pipe including housing, be located in housing, escape pipe and for separating the first dividing plate of housing cavity, the inlet end of air inlet pipe is connected with the air inlet of shell one end, the outlet side of escape pipe is connected with the gas outlet of the housing other end, the outlet side of described air inlet pipe extends to the other end of housing through the first dividing plate, forms circular path for air inlet pipe effluent air imports the tail pipe of the arcuate structure of escape pipe in described deafener also includes being located at housing and through the first dividing plate.Idle noise can be played good effect of optimization by acoustic filter of the present utility model, solves the problem that idle noise is big, meets current idling simultaneously and closes the requirement of lower low noise of turning on the aircondition.
Description
Technical field
This utility model belongs to engine exhaust system technical field, is specifically related to a kind of automobile engine to exhaust noise reduction
Device.
Background technology
Acoustic filter in engine exhaustor is mainly used in reducing engine exhaust noise, and its principle is by resistance
Property, resistance and impedance complex noise elimination form reduce the purpose of noise in aerofluxus.Dissipative muffler is a kind of energy absorption
Acoustic filter, be utilize sound-absorbing porous material to make dissipative muffler, when sound wave is by the pipeline that is laid with sound-absorbing material, sound
Ripple, by exciting the vibration of air molecule in numerous apertures in sound-absorbing porous material, due to frictional resistance and the effect of viscous force, makes
A part of acoustic energy is converted into thermal energy consumption and dissipates, thus reach noise elimination purpose；Reactive muffler then utilizes the reflection of sound wave and does
Relate to effect etc., by changing the propagation characteristic of sound wave, hinder acoustic wave energy outwards to propagate, reach noise elimination purpose, reactive muffler
Mainly include expanding acoustic filter and offset silencer, such as Hull nurse hereby deafener, quarter-wave long tube；Impedance complex is eliminated the noise
Generally combine use by resistive and two kinds of structure acoustic filters of resistance, not only simplified design structure but also can reach noise elimination purpose.
In the acoustic filter of existing electromotor, much there is muffler desing unreasonable, soundproof effect is undesirable, aerofluxus
The problem that tail pipe noise is bigger than normal, a lot of exhaust silencers are carried by the internal structure design increasing muffler volume and complexity
High sound-damping qualities, reduces the purpose of tail pipe noise.But, a lot of acoustic filters are the shortest due to the internal gas flow holdup time, acoustic energy
Amount consumes not, causes soundproof effect bad, if the purpose reaching fully to eliminate the noise by increasing muffler volume can increase again
Cost and product weight, and the acoustic filter internal structure of complexity, both can increase cost and weight, and can affect again the stream of exhaust airstream
Dynamic smoothness so that exhaust back pressure is higher, causes engine power and moment of torsion to produce certain loss, under car load power economy performance
Fall.
Summary of the invention
This utility model is intended at least to solve one of technical problem present in prior art.To this end, this utility model carries
For a kind of automobile engine to exhaust deafener, it is therefore an objective to lengthen air-flow flows through path, idle noise is played well optimization
Effect.
To achieve these goals, the technical scheme that this utility model is taked is:
A kind of automobile engine to exhaust deafener, the air inlet pipe including housing, being located in housing, escape pipe and for separating
First dividing plate of housing cavity, the inlet end of air inlet pipe is connected with the air inlet of shell one end, the outlet side of escape pipe and housing
The gas outlet of the other end connects, and the outlet side of described air inlet pipe extends to the other end of housing, described noise reduction through the first dividing plate
Circular path is formed for air inlet pipe effluent air is imported escape pipe in device also includes being located at housing and through the first dividing plate
The tail pipe of arcuate structure.
The air inlet of described escape pipe is connected through the first dividing plate with tail pipe, and the free end of described tail pipe passes the first dividing plate
Extend to the direction, gas outlet of housing.
Described first dividing plate is the breathable membrane structure being provided with perforation, and one section between described air inlet and the first dividing plate is entered
Trachea is provided with air-vent.
Described deafener also includes for separating housing cavity and being located at second between the first dividing plate and housing gas outlet
Breathable membrane, the free end of described tail pipe is located between the first dividing plate and the second breathable membrane, and described air inlet pipe and escape pipe are equal
Through the first dividing plate and the second breathable membrane, and the first dividing plate and the second breathable membrane are located at the inlet end of air inlet pipe and escape pipe
And between outlet side.
Described first dividing plate is breathable membrane structure, one section of air inlet pipe between described air inlet and the first dividing plate and going out
One section of air inlet pipe between QI KOU and the second breathable membrane is equipped with air-vent.
Three cavity size that the inner chamber of described housing is separated to form by the first dividing plate and the second breathable membrane are identical.
Described escape pipe is bend pipe structure.
Described first dividing plate is provided with heat insulation silencing cotton structure with the cavity inner wall of the inlet port formation of housing.
Described housing be respectively arranged at two ends with the first end cap and the second end cap, the inlet end of described air inlet pipe and the first end cap
Air inlet connect, the outlet side of described escape pipe is connected with the gas outlet of the second end cap.
The caliber of described air inlet pipe is more than the caliber of escape pipe.
The beneficial effects of the utility model: acoustic filter of the present utility model, internal escape pipe and tail pipe design are longer, wherein
Outlet tail piece uses cambered design, and lengthen air-flow in narrow space flows through path, can play idle noise very well
Effect of optimization, solve the problem that idle noise is big, meet current idling simultaneously and close the requirement of lower low noise of turning on the aircondition；Pass through
The acoustic wave filter structures such as pipeline, perforation, the expansion of cavity composition and resonance reach to eliminate the Middle and low frequency noise accelerated in exhaust noise
Purpose, can make accelerate tail pipe noise there is the ascending curve more smoothed out；With three pipes in common acoustic filter, multi-cavity, band
Sleeve pipe silencing cotton structure compares, and this acoustic filter internal structure pipeline is few, and perforation is arranged few, and dividing plate is few, decreases in accelerator
The gas current friction high-frequency noise produced, arranges heat insulation silencing cotton structure in inlet end inside cavity simultaneously, plays the noise of high frequency
To good Absorption, it is ensured that the noise level of car load time car travels electromotor height rotating speed, and simply internal
Structure design has again low weight, processing simply, the advantage of low cost；This acoustic filter internal structure is simple, and back pressure is reasonable, both reaches
Arrive noise reduction purpose, do not caused again the heavy losses of engine power moment of torsion, it is to avoid car load dynamic property, economy have been produced
Negative effect.For Zong He, deafener of the present utility model is for organizing anti-composite muffler structure, by pipeline and perforation structure
Reach the purpose eliminated the noise.
Accompanying drawing explanation
This specification includes the following drawings, shown content respectively:
Fig. 1 is overall structure schematic diagram of the present utility model；
Fig. 2 is internal structure schematic diagram of the present utility model.
Figure is labeled as:
1, housing, the 2, first end cap, the 3, second end cap, the air inlet of the 4, first end cap, the gas outlet of the 5, second end cap, 6,
Air inlet pipe, 7, escape pipe, the 8, first dividing plate, 9, tail pipe, the 10, second breathable membrane.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, detailed description of the invention of the present utility model is made the most in detail
Thin explanation, it is therefore an objective to help those skilled in the art design of the present utility model, technical scheme are had more complete, accurately and
Deep understanding, and contribute to its enforcement.
As shown in Figure 1 to Figure 2, this utility model is specifically related to a kind of automobile engine to exhaust deafener, including housing 1,
The air inlet pipe 6 be located in housing 1, escape pipe 7 and for separating the first dividing plate 8 of housing cavity, the inlet end of air inlet pipe 6 and shell
The air inlet of body 1 one end connects, and the outlet side of escape pipe 7 is connected with the gas outlet of housing 1 other end, the outlet side of air inlet pipe 6
Extend to the other end of housing 1 through the first dividing plate 8, formed in this deafener also includes being located at housing 1 and through the first dividing plate 8
Circular path for importing the tail pipe 9 of the arcuate structure of escape pipe 7 by air inlet pipe 6 effluent air.Tail pipe 9 is preferably circular arc
Tubular structure, it is therefore an objective to lengthen air-flow in narrow space flows through path, can play well optimization to idle noise
Effect, solves the problem that idle noise is big, meets current idling simultaneously and closes the requirement of lower low noise of turning on the aircondition.First dividing plate is not
It is only used for the separation of housing cavity, additionally it is possible to play fixing air inlet pipe 6 and the effect of escape pipe 7.
As preferable set-up mode, the air inlet of escape pipe 7 is connected through the first dividing plate 8 with tail pipe 9, oneself of tail pipe 9
Extend to the direction, gas outlet of housing 1 through the first dividing plate 8 by end.Housing 1 be respectively arranged at two ends with the first end cap 2 and the second end
Lid 3, the inlet end of air inlet pipe 6 and the air inlet 4 of the first end cap connect, the outlet side of escape pipe 7 and the gas outlet 5 of the second end cap
Connect.Certainly, the outlet side of air inlet pipe extends to the second end cap through the first dividing plate.Wherein, the first end cap 2 and the second end cap 3
Two ends undercut with housing 1 links together respectively；The inlet end of air inlet pipe 6 and the connected mode of the air inlet 4 of the first end cap
And the mode that the outlet side of escape pipe 7 is connected with the gas outlet 5 of the second end cap all can use welding manner to connect.
In order to reach preferable erasure effect, the first dividing plate 8 is the breathable membrane structure being provided with perforation, air inlet with
One section of air inlet pipe between first dividing plate 8 is provided with air-vent.The now circulation path of exhaust airstream: air-flow is entered by air inlet pipe
In acoustic filter, one section of pipeline that a part of air-flow is provided with passage by air inlet pipe enters the first dividing plate 8 and housing 1 air inlet
In the cavity that end is formed, and enter, by the vent-hole of the first dividing plate 8, the chamber that the first dividing plate 8 is formed with housing 1 outlet port
Internal, enter escape pipe 7 by tail pipe 9 afterwards and flow out outside acoustic filter；Another part air-flow by air inlet pipe flow into first every
In the cavity that plate 8 and housing 1 outlet port are formed, enter escape pipe by the circular path of tail pipe 9 and flow out outside acoustic filter.
In order to further up to more preferable erasure effect, this deafener also includes for separating housing cavity and being located at first
The second breathable membrane 10 between dividing plate 8 and housing 1 gas outlet, the free end of tail pipe 9 be located at the first dividing plate 8 and second ventilative every
Between plate 10, air inlet pipe 6 and escape pipe 7 both pass through the first dividing plate 8 and the second breathable membrane 10, and the first dividing plate 8 is saturating with second
Air bound plate 10 is located between air inlet pipe 6 and the inlet end of escape pipe 7 and outlet side.It is preferred that the caliber of air inlet pipe 6 is more than
The caliber of trachea 7, when specifically arranging, air inlet pipe is straight tube, and its caliber is Φ 47.8mm, and escape pipe is the curved of caliber Φ 45mm
Pipe.One section of air inlet between one section of air inlet pipe and gas outlet and the second breathable membrane 10 between air inlet and the first dividing plate 8
Pipe is equipped with air-vent.When specifically arranging, the inner chamber of housing 1 is separated to form by the first dividing plate 8 and the second breathable membrane 10
Three cavity size are identical.The now main circulation path of exhaust airstream: air-flow enters in acoustic filter by air inlet pipe, one
Point air-flow by air inlet pipe be provided with one section of pipeline of passage enter the first dividing plate 8 with in the cavity of housing 1 inlet port formation,
And entered by the vent-hole of the first dividing plate 8 in the cavity of the first dividing plate 8 and the formation of housing 1 outlet port, pass through tail afterwards
Pipe 9 enters escape pipe 7 and flows out outside acoustic filter；Another part air-flow flows into the second breathable membrane 10 and housing 1 by air inlet pipe
In the cavity that outlet port is formed, and enter the first dividing plate 8 and the second breathable membrane by the air-vent of the second breathable membrane 10
In cavity between 10, enter escape pipe 7 by the circular path of tail pipe 9 afterwards and flow out outside acoustic filter.Each adjacent communicate
The exchange of air-flow is had again between cavity and pipeline.This kind is designed to so that noise or is reflected back sound source, or be overlapped mutually to
Disappearing, acoustic energy is consumed in a large number, is finally reached the purpose reducing aerofluxus Middle and low frequency noise.
In order to the most fully consume low-frequency noise energy, escape pipe 7 is bend pipe structure.It is arranged to bend pipe structure and makes tail pipe
Lengthening, reach fully to consume low-frequency noise, final escape pipe whole acceleration noise curve smoothing is reasonable, and idle noise is relatively
Low, and exhaust back pressure and power loss are the most in the reasonable scope.
Additionally, the cavity inner wall that the inlet port of the first dividing plate 8 and housing 1 is formed is provided with heat insulation silencing cotton structure.This kind
Arrange and be easy to the noise of high frequency is played good Absorption, it is ensured that time car travels electromotor height rotating speed, car load makes an uproar
Sound level.
Above in association with accompanying drawing, this utility model is exemplarily described.Obviously, this utility model implements not
Limited by aforesaid way.As long as have employed the various unsubstantialities that method of the present utility model design is carried out with technical scheme
Improvement；Or the most improved, above-mentioned design of the present utility model and technical scheme are directly applied to other occasion, all at this
Within the protection domain of utility model.
Claims (10)
1. an automobile engine to exhaust deafener, the air inlet pipe (6) including housing (1), being located in housing (1), escape pipe (7)
With the first dividing plate (8) for separating housing cavity, the inlet end of air inlet pipe (6) is connected with the air inlet of housing (1) one end, goes out
The outlet side of trachea (7) is connected with the gas outlet of housing (1) other end, it is characterised in that: the outlet side of described air inlet pipe (6) is worn
Cross the first dividing plate (8) and extend to the other end of housing (1), in described deafener also includes being located at housing (1) and through first every
Plate (8) forms circular path for air inlet pipe (6) effluent air imports the tail pipe (9) of the arcuate structure of escape pipe (7).
Automobile engine to exhaust deafener the most according to claim 1, it is characterised in that: the air inlet of described escape pipe (7)
Being connected through the first dividing plate (8) with tail pipe (9), the free end of described tail pipe (9) extends to housing (1) through the first dividing plate (8)
Direction, gas outlet.
Automobile engine to exhaust deafener the most according to claim 1, it is characterised in that: described first dividing plate (8) is for being provided with
The breathable membrane structure of perforation, one section of air inlet pipe between described air inlet and the first dividing plate (8) is provided with air-vent.
Automobile engine to exhaust deafener the most according to claim 1, it is characterised in that: described deafener also includes for dividing
Every housing cavity and the second breathable membrane (10) of being located between the first dividing plate (8) and housing (1) gas outlet, described tail pipe (9)
Free end be located between the first dividing plate (8) and the second breathable membrane (10), described air inlet pipe (6) and escape pipe (7) both pass through
First dividing plate (8) and the second breathable membrane (10), and the first dividing plate (8) and the second breathable membrane (10) be located at air inlet pipe (6) with
Between inlet end and the outlet side of escape pipe (7).
Automobile engine to exhaust deafener the most according to claim 4, it is characterised in that: described first dividing plate (8) is ventilative
Diaphragm structure, one section of air inlet pipe between described air inlet and the first dividing plate (8) and gas outlet and the second breathable membrane (10)
Between one section of air inlet pipe be equipped with air-vent.
Automobile engine to exhaust deafener the most according to claim 4, it is characterised in that: the inner chamber of described housing (1) passes through
First dividing plate (8) is identical with three cavity size that the second breathable membrane (10) is separated to form.
Automobile engine to exhaust deafener the most according to claim 1, it is characterised in that: described escape pipe (7) is bend pipe knot
Structure.
Automobile engine to exhaust deafener the most according to claim 1, it is characterised in that: described first dividing plate (8) and housing
(1) cavity inner wall that inlet port is formed is provided with heat insulation silencing cotton structure.
Automobile engine to exhaust deafener the most according to claim 1, it is characterised in that: the two ends of described housing (1) are respectively
Being provided with the first end cap (2) and the second end cap (3), the inlet end of described air inlet pipe (6) and the air inlet (4) of the first end cap connect,
The outlet side of described escape pipe (7) is connected with the gas outlet (5) of the second end cap.
Automobile engine to exhaust deafener the most according to claim 1, it is characterised in that: the caliber of described air inlet pipe (6) is big
Caliber in escape pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620624032.3U CN205823380U (en) | 2016-06-22 | 2016-06-22 | A kind of automobile engine to exhaust deafener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620624032.3U CN205823380U (en) | 2016-06-22 | 2016-06-22 | A kind of automobile engine to exhaust deafener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205823380U true CN205823380U (en) | 2016-12-21 |
Family
ID=58145759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620624032.3U Active CN205823380U (en) | 2016-06-22 | 2016-06-22 | A kind of automobile engine to exhaust deafener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205823380U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843435A (en) * | 2018-06-12 | 2018-11-20 | 蒙城县傲尊电子科技有限公司 | A kind of potent noise reduction automobile exhaust pipe |
| CN110873011A (en) * | 2018-08-29 | 2020-03-10 | 曼胡默尔滤清器（上海）有限公司 | Composite broadband silencer with multilayer structure |
| CN111396173A (en) * | 2020-04-16 | 2020-07-10 | 汉腾汽车有限公司 | Novel silencer device for vehicle |
| WO2023082341A1 (en) * | 2021-11-12 | 2023-05-19 | 无锡威孚力达催化净化器有限责任公司 | Method for optimizing opening degree of tuning valve, and muffler |
-
2016
- 2016-06-22 CN CN201620624032.3U patent/CN205823380U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843435A (en) * | 2018-06-12 | 2018-11-20 | 蒙城县傲尊电子科技有限公司 | A kind of potent noise reduction automobile exhaust pipe |
| CN110873011A (en) * | 2018-08-29 | 2020-03-10 | 曼胡默尔滤清器（上海）有限公司 | Composite broadband silencer with multilayer structure |
| CN111396173A (en) * | 2020-04-16 | 2020-07-10 | 汉腾汽车有限公司 | Novel silencer device for vehicle |
| WO2023082341A1 (en) * | 2021-11-12 | 2023-05-19 | 无锡威孚力达催化净化器有限责任公司 | Method for optimizing opening degree of tuning valve, and muffler |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |