CN207131468U - A kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler - Google Patents
A kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler Download PDFInfo
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- CN207131468U CN207131468U CN201720958586.1U CN201720958586U CN207131468U CN 207131468 U CN207131468 U CN 207131468U CN 201720958586 U CN201720958586 U CN 201720958586U CN 207131468 U CN207131468 U CN 207131468U
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- pipe
- hole
- antipriming
- sound attenuation
- antipriming pipe
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Abstract
A kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler, its difference are：The dual reflux cavity configuration of second pipe has a function for the speed for reducing exhaust airstream, and six cavity configurations of sound attenuation, which play sound wave and liquidated, offsets the function of noise reduction.The multiple apertures opened up on the tube wall of the first antipriming pipe and the second antipriming pipe, the 3rd antipriming pipe and the 4th antipriming pipe, the frequency of noise is moved into the high band that human ear can not hear.The section that 4th pipe, the 5th pipe, the 6th pipe and the 7th pipe are passed through by being mutated air-flow, has hindrance function to sound wave.Set the first valve and the second valve is opened and closed when engine is in different working conditions, and beneficial to the smooth of exhaust when valve opening is engine high rotating speed, valve, which is closed, keeps back pressure, holding torque when being low engine speeds.Its largest benefit is that muffler is also followed in optimal mute state when engine is in different working conditions.
Description
Technical field
The utility model belongs to field of automobile, more particularly to a kind of dual reflux opposite-flushing type back pressure automobile exhaust
Muffler.
Background technology
Automobile engine can produce noise at work, during its exhaust emissions.If caused noise is not disappeared
Sound processing, people ground normal life around will be severely impacted.At present used in automobile engine be equipped with muffler, its
Erasure effect can substantially meet to require.But for corresponding ground use environment, its erasure effect is more good more welcome.
For noise reduction means, two kinds of means are mainly taken in the design of muffler：Resistive noise reduction, resistant noise-reducing and resistance
Anti- combined type noise reduction.Specific implementation substantially microperforated panel noise reduction, aperture noise reduction, active noise reduction.Above noise reduction method
Respectively there is feature, designer will take different measures to design muffler according to object to be dealt with.
Utility model content
Means are impedance complex formula noise reduction method used by the utility model.Different cross section is entered by the straight tube of gas circuit
Cavity change space and produce the reflection of acoustic energy, interference, so as to reduce to the acoustic energy of external radiation, to reach noise elimination purpose
Silencer.Many apertures are opened up on straight tube, when air-flow is through small holes, the frequency spectrum of jet noise will shift to high frequency or superelevation
Frequently, the audible sound composition in frequency spectrum is made substantially to reduce.
Used dual reflux cavity configuration, caused noise are then exhausted from by symmetrical flow division into sound attenuation, from sound wave
The function that angle will have waveform of cancelling out each other, to abate the noise.Back pressure is high, and low torque is big.
In order to improve the effect of sound wave counteracting, valve is provided with the pipeline of the both sides of sound attenuation, to adjust noise
The uniformity of circulation, so as to reach more preferable erasure effect.Valve is controllable, during valve opening, is run beneficial to high engine speeds
When smooth in exhaust.Back pressure and moment of torsion are kept when valve is closed.
Material is titanium alloy material TA2 used by the manufacture of total part, it the advantages of be：Light weight, it is heat-insulated
Property is good, and antiseptic property is better than stainless steel.No high-frequency cacophony is said from acoustic angle.
The technical scheme of use
A kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler, including：First antipriming pipe, the first pipe, the first valve,
Two antipriming pipes, the second pipe, sound attenuation, the 3rd antipriming pipe, the second valve, the 4th antipriming pipe, the 3rd pipe, the 4th pipe, the 5th pipe,
6th pipe and the 7th pipe.Wherein, the first antipriming pipe is identical with the second antipriming pipe, the 3rd antipriming pipe and the 4th antipriming pipe.First pipe
It is identical with the 3rd pipe.It is characterized in that：
Multiple apertures are provided with the wall in the left side in the second hole of the first antipriming pipe.
Second hole side of the first antipriming pipe sequentially passes through the 12nd hole, 11-holes and the tenth hole on sound attenuation, the
The outer wall of one antipriming pipe is tightly connected with this some holes.Second hole of the first antipriming pipe is placed in the second intracavitary of sound attenuation.First
Multiple apertures on antipriming pipe are placed in the 5th intracavitary of sound attenuation.
First hole of the first antipriming pipe is tightly connected with the hole on the first pipe outer cylinder.
Second hole side of the 4th antipriming pipe sequentially passes through seven apertures in the human head, octal and the 9th hole on sound attenuation, more than the 4th
The outer wall of hole pipe is tightly connected with this some holes.Second hole of the 4th antipriming pipe is placed in the second intracavitary of sound attenuation.4th is porous
Multiple apertures on pipe are placed in the 3rd intracavitary of sound attenuation.
First hole of the 4th antipriming pipe is tightly connected with the hole on the 3rd pipe outer cylinder.
Second hole side of the second antipriming pipe sequentially passes through the first hole, the second hole and the 3rd hole on sound attenuation, more than second
The outer wall of hole pipe is tightly connected with this some holes.Second hole of the second antipriming pipe is placed in the first intracavitary of sound attenuation.More than second
Multiple apertures on the pipe of hole are placed in the 5th intracavitary of sound attenuation.
First hole of the second antipriming pipe is tightly connected with the 4th hole on the second pipe.
Second hole side of the 3rd antipriming pipe sequentially passes through the 6th hole, the 5th hole and the 4th hole on sound attenuation, more than the 3rd
The outer wall of hole pipe is tightly connected with this some holes.Second hole of the 3rd antipriming pipe is placed in the first intracavitary of sound attenuation.3rd is porous
Multiple apertures on pipe are placed in the 3rd intracavitary of sound attenuation.
First hole of the 3rd antipriming pipe is tightly connected with the 3rd hole on the second pipe.
The upper port of first valve seals with the 5th hole on the second pipe
Connection, the lower port of the first valve and the upper port of the first pipe are tightly connected.
The upper port of second valve is tightly connected with the second hole on the second pipe, the lower port of the second valve and the 3rd pipe
Upper port is tightly connected.
4th pipe seals through the 15th hole and the 16th hole on sound attenuation, outer cylinder and the two holes of the 4th pipe
Connection.
5th pipe seals through the 13rd hole and the 14th hole on sound attenuation, outer cylinder and the two holes of the 5th pipe
Connection.
6th pipe seals through the 19th hole and the 20th hole on sound attenuation, outer cylinder and the two holes of the 6th pipe
Connection.
7th pipe seals through the tenth seven apertures in the human head and the tenth octal on sound attenuation, outer cylinder and the two holes of the 7th pipe
Connection.
All parts are all by titanium TA2 material system on a kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler
Into.
First valve and the second valve are commercially available prod.
Advantage
Manufactured using titanium alloy, in light weight, anti-corrosion, no high-frequency cacophony, it is heat-insulated good；
Dual reflux chamber, opposite-flushing type structure reduce air velocity；
The cavity configuration of sound attenuation six, mixing noise reduction.
Brief description of the drawings
Fig. 1 is a kind of assembling schematic diagram of dual reflux opposite-flushing type back pressure automobile exhaust muffler；
Fig. 2 is Fig. 1 sectional view B-B；
Fig. 3 is Fig. 1 sectional view A-A；
Fig. 4 is Fig. 1 sectional view C-C；
Fig. 5 is Fig. 3 sound attenuation view；
Fig. 6 is Fig. 5 sectional view D-D；
Fig. 7 is Fig. 5 sectional view E-E；
Fig. 8 is the station location marker figure of the second pipe；
Fig. 9 is the station location marker figure of the first antipriming pipe.
Embodiment
Embodiment 1
A kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler, including：First antipriming pipe 1, the first pipe 2, the first valve
3rd, the second antipriming pipe 4, the second pipe 5, sound attenuation 6, the 3rd antipriming pipe 7, the second valve 8, the 4th antipriming pipe 9, the 3rd pipe 10,
Four pipes 11, the 5th pipe 12, the 6th pipe 13 and the 7th pipe 14；Wherein, the first antipriming pipe 1 and the second antipriming pipe 4, the 3rd antipriming pipe 7
It is identical with the 4th antipriming pipe 9；First pipe 2 is identical with the 3rd pipe 10；It is characterized in that：
Multiple apertures are provided with the wall in the left side in the second hole 47 of the first antipriming pipe 1；
The side of the second hole 47 of first antipriming pipe 1 sequentially passes through the 12nd hole 30 on sound attenuation 6,11-holes 29 and
Ten holes 28, outer wall and this some holes of the first antipriming pipe 1 are tightly connected；Second hole 47 of the first antipriming pipe 1 is placed in sound attenuation 6
In second chamber 22；Multiple apertures on first antipriming pipe 1 are placed in the 5th chamber 31 of sound attenuation 6；
Hole on the first hole 46 and the outer cylinder of the first pipe 2 of first antipriming pipe 1 is tightly connected；
The side of the second hole 47 of 4th antipriming pipe 9 sequentially passes through seven apertures in the human head 25 on sound attenuation 6, the hole of octal 26 and the 9th
27, outer wall and this some holes of the 4th antipriming pipe 9 are tightly connected；Second hole 47 of the 4th antipriming pipe 9 is placed in the second of sound attenuation 6
In chamber 22；Multiple apertures on 4th antipriming pipe 9 are placed in the 3rd chamber 23 of sound attenuation 6；
Hole on first hole 46 of the 4th antipriming pipe 9 and the outer cylinder of the 3rd pipe 10 is tightly connected；
The side of the second hole 47 of second antipriming pipe 4 sequentially passes through the first hole 15, the second hole 16 and the 3rd hole on sound attenuation 6
17, outer wall and this some holes of the second antipriming pipe 4 are tightly connected；Second hole 47 of the second antipriming pipe 4 is placed in the of sound attenuation 6
In one chamber 21；Multiple apertures on second antipriming pipe 4 are placed in the 5th chamber 31 of sound attenuation 6；
First hole 46 of the second antipriming pipe 4 is tightly connected with the 4th hole 44 on the second pipe 5；
The side of the second hole 47 of 3rd antipriming pipe 7 sequentially passes through the 6th hole 20, the 5th hole 19 and the 4th hole on sound attenuation 6
18, outer wall and this some holes of the 3rd antipriming pipe 7 are tightly connected；Second hole 47 of the 3rd antipriming pipe 7 is placed in the first of sound attenuation 6
In chamber 21；Multiple apertures on 3rd antipriming pipe 7 are placed in the 3rd chamber 23 of sound attenuation 6；
First hole 46 of the 3rd antipriming pipe 7 is tightly connected with the 3rd hole 43 on the second pipe 5；
The upper port of first valve 3 seals with the 5th hole 45 on the second pipe 5
Connection, the lower port of the first valve 3 and the upper port of the first pipe 2 are tightly connected；
The upper port of second valve 8 is tightly connected with the second hole 42 on the second pipe 5, the lower port of the second valve 8 and the
The upper port of three pipes 10 is tightly connected；
4th pipe 11 through the 15th hole 35 and the 16th hole 36 on sound attenuation 6, the outer cylinder of the 4th pipe 11 and this
Two holes are tightly connected；
5th pipe 12 through the 13rd hole 33 and the 14th hole 34 on sound attenuation 6, the outer cylinder of the 5th pipe 12 and this
Two holes are tightly connected；
6th pipe 13 through the 19th hole 39 and the 20th hole 40 on sound attenuation 6, the outer cylinder of the 6th pipe 13 and this
Two holes are tightly connected；
7th pipe 14 through the tenth seven apertures in the human head 37 and the tenth octal 38 on sound attenuation 6, the outer cylinder of the 7th pipe 14 and this
Two holes are tightly connected.
Embodiment 2
A kind of embodiment 2 of dual reflux opposite-flushing type back pressure automobile exhaust muffler is substantially the same manner as Example 1, its difference
Be in：
All parts are all by titanium TA2 material system on a kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler
Into.
Operation principle
The exhaust outlet of engine is mingled with the first hole that gas and noise enter on the second pipe, left and right shunting, into second
Antipriming pipe and the second antipriming pipe, gas and noise enter the first intracavitary.Many apertures are wherein provided with the tube wall of the second antipriming pipe,
These apertures are in the 5th intracavitary.Gas and noise into the 5th intracavitary pass through the aperture on the first porous tube wall and the second pipe
5th hole is flowed out, while part enters the second chamber.
Gas and noise part part enter the 5th intracavitary；Many apertures are provided with the tube wall of 3rd antipriming pipe, these apertures
In the 3rd intracavitary；Gas and noise part part enter the 3rd intracavitary.Gas and noise into the 3rd intracavitary is porous by the 4th
The second hole outflow of aperture and the second pipe on tube wall.Part enters the second chamber simultaneously.
4th pipe passes through the second chamber, and the first chamber and the 4th chamber are connected in two holes of the 4th pipe；Into the first chamber gas and
Noise enters the 4th chamber by the 4th pipe.
5th pipe passes through the 5th chamber, and the first chamber and the 6th chamber are connected in two holes of the 5th pipe；Into the first chamber gas and
Noise enters the 6th chamber by the 5th pipe.
6th pipe passes through the second chamber, and the second chamber and the 6th chamber are connected in two holes of the 6th pipe；Into the second chamber gas and
Noise enters the 6th chamber by the 6th pipe.
7th pipe passes through the 3rd chamber, and the second chamber and the 4th chamber are connected in two holes of the 7th pipe；Into the second chamber gas and
Noise enters the 4th chamber by the 7th pipe.
First valve is opened, and gas and noise partly will be discharged directly from the 5th hole of the second pipe；Second valve is opened, gas
Body and noise partly will be discharged directly from the second hole of the second pipe.
Claims (2)
1. a kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler, including：First antipriming pipe（1), the first pipe（2), the first valve
Door（3), the second antipriming pipe（4), the second pipe（5), sound attenuation（6), the 3rd antipriming pipe（7), the second valve（8), the 4th is porous
Pipe（9), the 3rd pipe（10), the 4th pipe（11), the 5th pipe（12), the 6th pipe（13) and the 7th manages (14);Wherein, first is porous
Pipe（1) with the second antipriming pipe（4), the 3rd antipriming pipe（And the 4th antipriming pipe 7)（9) it is identical；First pipe（2) managed with the 3rd（10) phase
Together；It is characterized in that：
First antipriming pipe（1) the second hole（47) multiple apertures are provided with the wall in left side；
First antipriming pipe（1) the second hole（47) side sequentially passes through sound attenuation（6) the 12nd hole on（30), 11-holes
And the tenth hole (29)（28), the first antipriming pipe（1) outer wall is tightly connected with this some holes；First antipriming pipe（1) the second hole
（47) it is placed in sound attenuation（6) the second chamber（22) in；First antipriming pipe（1) multiple apertures on are placed in sound attenuation（6)
5th chamber（31) in；
First antipriming pipe（1) the first hole（46) managed with first（2) hole on outer cylinder is tightly connected；
4th antipriming pipe（9) the second hole（47) side sequentially passes through sound attenuation（6) seven apertures in the human head on（25), octal (26)
With the 9th hole（27), the 4th antipriming pipe（9) outer wall is tightly connected with this some holes；4th antipriming pipe（9) the second hole（47) put
In sound attenuation（6) the second chamber（22) in；4th antipriming pipe（9) multiple apertures on are placed in sound attenuation（6) the 3rd chamber
（23) in；
4th antipriming pipe（9) the first hole（46) managed with the 3rd（10) hole on outer cylinder is tightly connected；
Second antipriming pipe（4) the second hole（47) side sequentially passes through sound attenuation（6) the first hole on（15), the second hole (16)
With the 3rd hole（17), the second antipriming pipe（4) outer wall is tightly connected with this some holes；Second antipriming pipe（4) the second hole（47) put
In sound attenuation（6) the first chamber（21) in；Second antipriming pipe（4) multiple apertures on are placed in sound attenuation（6) the 5th chamber
（31) in；
Second antipriming pipe（4) the first hole（46) managed with second（5) the 4th hole on（44) it is tightly connected；
3rd antipriming pipe（7) the second hole（47) side sequentially passes through sound attenuation（6) the 6th hole on（20), the 5th hole (19)
With the 4th hole（18), the 3rd antipriming pipe（7) outer wall is tightly connected with this some holes；3rd antipriming pipe（7) the second hole（47) put
In sound attenuation（6) the first chamber（21) in；3rd antipriming pipe（7) multiple apertures on are placed in sound attenuation（6) the 3rd chamber
（23) in；
3rd antipriming pipe（7) the first hole（46) managed with second（5) the 3rd hole on（43) it is tightly connected；
First valve（3) upper port and the second pipe（5) the 5th hole on（45) it is tightly connected, the first valve（3) lower port
With the first pipe（2) upper port is tightly connected；
Second valve（8) upper port and the second pipe（5) the second hole on（42) it is tightly connected, the second valve（8) lower port
With the 3rd pipe（10) upper port is tightly connected；
4th pipe（11) sound attenuation is passed through（6) the 15th hole on（And the 16th hole 35)（36）, the 4th pipe（11）Column jacket
Face is tightly connected with the two holes；
5th pipe（12) sound attenuation is passed through（6) the 13rd hole on（And the 14th hole 33)（34）, the 5th pipe（12）Column jacket
Face is tightly connected with the two holes；
6th pipe（13) sound attenuation is passed through（6) the 19th hole on（And the 20th hole 39)（40）, the 6th pipe（13）Column jacket
Face is tightly connected with the two holes；
7th pipe（14) sound attenuation is passed through（6) the tenth seven apertures in the human head on（And the tenth octal 37)（38）, the 7th pipe（14）Column jacket
Face is tightly connected with the two holes.
2. a kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler according to claim 1, its difference are：One
All parts are all made up of titanium TA2 material on kind dual reflux opposite-flushing type back pressure automobile exhaust muffler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720958586.1U CN207131468U (en) | 2017-08-03 | 2017-08-03 | A kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720958586.1U CN207131468U (en) | 2017-08-03 | 2017-08-03 | A kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207131468U true CN207131468U (en) | 2018-03-23 |
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ID=61640050
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720958586.1U Active CN207131468U (en) | 2017-08-03 | 2017-08-03 | A kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler |
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| CN (1) | CN207131468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227991A (en) * | 2017-08-03 | 2017-10-03 | 沈阳诚信钛业有限公司 | A kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler |
-
2017
- 2017-08-03 CN CN201720958586.1U patent/CN207131468U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227991A (en) * | 2017-08-03 | 2017-10-03 | 沈阳诚信钛业有限公司 | A kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler |
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