CN106285836B - Silencer for automobile exhaust system - Google Patents
Silencer for automobile exhaust system Download PDFInfo
- Publication number
- CN106285836B CN106285836B CN201610899554.9A CN201610899554A CN106285836B CN 106285836 B CN106285836 B CN 106285836B CN 201610899554 A CN201610899554 A CN 201610899554A CN 106285836 B CN106285836 B CN 106285836B
- Authority
- CN
- China
- Prior art keywords
- baffle
- air inlet
- silencer
- connecting tube
- expansion chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling by passing the exhaust gases 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
- F01N1/08—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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
A kind of silencer for automobile exhaust system comprising shell, first baffle and second baffle, air inlet pipe and U-tube.It include the expansion chamber between first, second baffle in the shell.Air inlet pipe is equipped with air inlet and extends into the extension in the expansion chamber, and the tube wall of the extension is equipped with several through-holes being connected to the expansion chamber.The extension is additionally provided with half closure plate of the port and the partially enclosed port opposite with the air inlet, wherein the plate closure plate semicircular in shape and blocking the lower half portion of the port.The present invention is by half closure plate of setting, and when the exhaust of engine enters air inlet pipe from air inlet, under the blocking of half closure plate, a part exhaust is overflowed from through-hole and entered in expansion chamber, and another part exhaust enters in expansion chamber from exhaust passage.So set, on the one hand increase nozzle back pressure will not excessively, condensate return on the other hand also can be effectively avoided.
Description
Technical field
The present invention relates to a kind of silencers for automobile exhaust system.
Background technique
For automobile exhaust system, other than considering how noise reduction, it is also contemplated that shadow of the exhaust unit to back pressure
It rings.Acoustics and back pressure are originally two aspects runed counter to, and take into account and balance this different performance tool and acquire a certain degree of difficulty.And except this it
Outside, it when design is vented assembly, also needs to consider the running environment under some maximum conditions, in order to avoid the phenomenon that such as ice is stifled etc pair
The multiplying to drive of terminal client bring adverse effect.
Summary of the invention
The purpose of the present invention is to provide a kind of adjusting back pressure and acoustics, and prevent condensate return for automobile exhaust
The silencer of system.
To achieve the above object, the present invention adopts the following technical scheme: a kind of silencer for automobile exhaust system, institute
State silencer include shell, positioned at the intracorporal first baffle of the shell and second baffle, across the air inlet pipe of the first baffle
And the U-tube across the first baffle and the second baffle；The shell include upper housing and with the upper housing
The lower case welded together, include in the shell expansion chamber between the first baffle and the second baffle,
The first cavity positioned at the side of the first baffle and the second cavity positioned at the other side of the second baffle；Described
One baffle is equipped with several first apertures for being connected to first cavity and the expansion chamber, and the second baffle is equipped with described in connection
Several second apertures of second cavity and the expansion chamber；The air inlet pipe be equipped with the air inlet that is exposed to outside the shell and
The extension in the expansion chamber is extended into, the tube wall of the extension is equipped with several through-holes being connected to the expansion chamber,
The extension is additionally provided with half closure plate of the port and the partially enclosed port opposite with the air inlet, wherein the plate
Closure plate semicircular in shape and the lower half portion for blocking the port；The U-tube include be erected at the first baffle with it is described
The first connecting tube on second baffle is erected on the first baffle and the second baffle and flat with first connecting tube
Second connecting tube of row setting and the U-shaped connecting tube of connection first connecting tube and second connecting tube, wherein described
First connecting tube is equipped with the horn mouth being connected to second cavity, and the U-shaped connecting tube is located in first cavity, described
Second connecting tube is equipped with several perforation being connected to the expansion chamber and the gas outlet being exposed to outside the shell.
Technical solution as a further improvement of that present invention, the air inlet pipe are located at the side of the U-tube, the air inlet
Pipe is equipped with to the inclined rake in direction far from the U-shaped connecting tube, and the air inlet is arranged on the rake.
Technical solution as a further improvement of that present invention, the through-hole are distributed in the top of the tube wall, the tube wall
The not set through-hole in lower part.
Technical solution as a further improvement of that present invention, half closure plate are welded on the port, half closure plate
Top half and the port between be equipped with to the exhaust passage that reduces back pressure.
Technical solution as a further improvement of that present invention, half closure plate first equipped with the partially enclosed port are perpendicular
Straight portion, the second vertical portion on the outside of first vertical portion and connection first vertical portion and second vertical portion
Horizontal part, wherein first vertical portion is parallel to each other with second vertical portion, second vertical portion is welded on described
On extension.
Technical solution as a further improvement of that present invention, the first vertical portion contracting is in the port.
Technical solution as a further improvement of that present invention, second vertical portion is close to the second baffle.
Technical solution as a further improvement of that present invention, the shell is L-shaped on the whole, the first baffle with it is described
Second baffle is also L-shaped.
Technical solution as a further improvement of that present invention, the U-tube include being socketed in second connecting tube
Resonatron, the resonatron are held on the second baffle, and the side of the resonatron extends into the expansion chamber, described
The other side of resonatron extends into second cavity.
Technical solution as a further improvement of that present invention is equipped with the glass for the high-frequency sound that disappears in first cavity
Fiber.
Compared to the prior art, the present invention is by half closure plate of setting, when the exhaust of engine enters air inlet pipe from air inlet
When, under the blocking of half closure plate, a part exhaust is overflowed from through-hole and is entered in expansion chamber, and another part exhaust is logical from being vented
Road enters in expansion chamber.The chamber volume as corresponding to air inlet pipe top half is larger, has obvious benefit to acoustics；Separately
Outside, it increase nozzle back pressure will not excessively, on the other hand also can effectively avoid condensate return.
Detailed description of the invention
Fig. 1 is perspective view of the present invention for the silencer of automobile exhaust system.
Fig. 2 is the perspective view of another angle of Fig. 1.
Fig. 3 is the part isometric exploded view of Fig. 1.
Fig. 4 is the further stereogram exploded view of Fig. 3.
Fig. 5 is the perspective view after the shell removed in Fig. 1.
Fig. 6 is the perspective view of another angle of Fig. 5.
Fig. 7 is the top view of Fig. 5.
Fig. 8 is the diagrammatic cross-section of line A-A in Fig. 1.
Fig. 9 is the diagrammatic cross-section of line B-B in Fig. 1.
Specific embodiment
It please join shown in Fig. 1 to Fig. 9, present invention discloses a kind of silencers 100 for automobile exhaust system comprising shell
Body 1, the first baffle 21 in the shell 1 and second baffle 22, across the first baffle 21 air inlet pipe 3 and wear
Cross the U-tube 4 of the first baffle 21 and the second baffle 22.
In illustrative embodiments of the present invention, the shell 1 includes upper housing 11 and welds with the upper housing 11
Lower case 12 together.The shell 1 is L-shaped on the whole, and the first baffle 21 is also in L with the second baffle 22
Shape.Include expansion chamber 13 between the first baffle 21 and the second baffle 22 in the shell 1, be located at described the
First cavity 14 of the side of one baffle 21 and the second cavity 15 positioned at the other side of the second baffle 22.Preferably,
The glass fibre for the high-frequency sound that disappears is equipped in first cavity 14.
The first baffle 21 is equipped with several first apertures 211 for being connected to first cavity 14 and the expansion chamber 13.
The second baffle 22 is equipped with several second apertures 221 for being connected to second cavity 15 and the expansion chamber 13.
The air inlet pipe 3 is equipped with the air inlet 31 being exposed to outside the shell 1 and extends into the expansion chamber 13
Extension 32.The tube wall of the extension 32 is equipped with several through-holes 321 being connected to the expansion chamber 13.The extension 32
It is additionally provided with half closure plate 34 of the port 33 and the partially enclosed port 33 opposite with the air inlet 31, wherein the plate is stifled
34 semicircular in shape of plate and the lower half portion for blocking the port 33.In illustrative embodiments of the present invention, the through-hole 321
It is distributed in the top of the tube wall, the not set through-hole in the lower part of the tube wall.Half closure plate 34 is welded on the port 33,
The exhaust passage 35 to reduce back pressure is equipped between the top half and the port 33 of half closure plate 34.Half closure plate
34 are equipped with the first vertical portion 341 of the partially enclosed port 33, positioned at second vertical portion in 341 outside of the first vertical portion
342 and connection first vertical portion 341 and second vertical portion 342 horizontal part 343, wherein first vertical portion
341 are parallel to each other with second vertical portion 342, and second vertical portion 342 is welded on the extension 32.Described first
It contracts in the port 33 vertical portion 341.Second vertical portion 342 is close to the second baffle 22.
The U-tube 4 includes being erected at the first baffle 21 and the first connecting tube 41 on the second baffle 22, frame
Be located at the first baffle 21 on the second baffle 22 and with first connecting tube 41, second connecting tube disposed in parallel
42 and connection first connecting tube 41 and second connecting tube 42 U-shaped connecting tube 43, wherein first connecting tube
41 are equipped with the horn mouth 411 being connected to second cavity 15；The U-shaped connecting tube 43 is located in first cavity 14；Institute
It states the second connecting tube 42 and is equipped with several perforation 421 being connected to the expansion chamber 13 and the outlet being exposed to outside the shell 1
Mouth 422.
The air inlet pipe 3 is located at the side of the U-tube 4, and the air inlet pipe 3 is equipped with to far from the U-shaped connecting tube 43
The inclined rake 311 in direction, the air inlet 31 is arranged on the rake 311.
The U-tube 4 includes the resonatron 44 being socketed in second connecting tube 42, and the resonatron 44 is held in institute
It states on second baffle 22, the side 441 of the resonatron 44 extends into the expansion chamber 13, the other side of the resonatron 44
442 extend into second cavity 15.
In use, the exhaust of engine enters in air inlet pipe 3 from air inlet 31, and under the blocking of half closure plate 34, a part
Exhaust is overflowed from through-hole 321 and is entered in expansion chamber 13, and another part exhaust enters in expansion chamber 13 from exhaust passage 35.
The chamber volume as corresponding to 3 top half of air inlet pipe is larger, has obvious benefit to acoustics.In addition, stifled by setting half
Plate 34 increase nozzle back pressure will not excessively, on the other hand also can effectively avoid condensate return.Because of rear muffler
Temperature it is relatively low, be easier condensed water occur, condensed water generally can all be gathered in lower case 12 namely entire exhaust is total
At relatively low spot.Thus, if the condensed water in shell 1 is just easy to flow back into connecting tube by air inlet pipe 3 without this half closure plate 34
In, in the lower running environment of temperature, it is easy to form ice and block up phenomenon, be highly detrimental to travel.The present invention provides one kind
The design that acoustics and back pressure are mutually balanced, meanwhile, which is also avoided that in rear muffler by half closure plate 34
Condensed water is flowed back into connecting tube by air inlet pipe 3, it is therefore prevented that ice blocks up the generation of phenomenon.
In addition, above embodiments are merely to illustrate the present invention and not limit the technical scheme described by the invention, to this
The understanding of specification should be based on person of ordinary skill in the field, although this specification is referring to the above embodiments pair
Present invention has been detailed description, still, those skilled in the art should understand that, the technology of technical field
Personnel still can modify or equivalently replace the present invention, and all do not depart from the technology of the spirit and scope of the present invention
Scheme and its improvement should all be covered in scope of the presently claimed invention.
Claims (10)
1. a kind of silencer for automobile exhaust system, the silencer includes shell, is located at the intracorporal first gear of the shell
Plate and second baffle, the air inlet pipe across the first baffle and the U-shaped across the first baffle and the second baffle
Pipe；The shell includes upper housing and the lower case that welds together with the upper housing, includes being located at institute in the shell
State the expansion chamber between first baffle and the second baffle, positioned at the side of the first baffle the first cavity and be located at
Second cavity of the other side of the second baffle；The first baffle, which is equipped with, is connected to first cavity and the expansion chamber
Several first apertures, the second baffle are equipped with several second apertures for being connected to second cavity and the expansion chamber；It is special
Sign is: the air inlet pipe is equipped with the air inlet being exposed to outside the shell and extends into the extension in the expansion chamber,
The tube wall of the extension is equipped with several through-holes being connected to the expansion chamber, and the extension is additionally provided with and the air inlet
Half closure plate of opposite port and the partially enclosed port, wherein the half closure plate semicircular in shape and blocking the port
Lower half portion；The U-tube include be erected at the first baffle on the second baffle the first connecting tube, be erected at
The first baffle on the second baffle and with first connecting tube the second connecting tube disposed in parallel and connect institute
The U-shaped connecting tube of the first connecting tube Yu second connecting tube is stated, wherein first connecting tube is equipped with and second cavity
The horn mouth of connection, the U-shaped connecting tube are located in first cavity, and second connecting tube is equipped with to be connected with the expansion chamber
Logical several perforation and the gas outlet being exposed to outside the shell；The not set any aperture of half closure plate itself, and it is described
The central axes of the top surface of the half closure plate port protruding upward.
2. being used for the silencer of automobile exhaust system as described in claim 1, it is characterised in that: the air inlet pipe is located at described
The side of U-tube, the air inlet pipe are equipped with to the inclined rake in direction far from the U-shaped connecting tube, and the air inlet is set
It sets on the rake.
3. being used for the silencer of automobile exhaust system as claimed in claim 2, it is characterised in that: the through-hole is distributed in described
The top of tube wall, the not set through-hole in the lower part of the tube wall.
4. being used for the silencer of automobile exhaust system as claimed in claim 3, it is characterised in that: half closure plate is welded on institute
It states on port, the exhaust passage to reduce back pressure is equipped between the top half and the port of half closure plate.
5. being used for the silencer of automobile exhaust system as claimed in claim 4, it is characterised in that: half closure plate is equipped with part
The first vertical portion, the second vertical portion on the outside of first vertical portion and connection described first for closing the port are perpendicular
The horizontal part in straight portion and second vertical portion, wherein first vertical portion is parallel to each other with second vertical portion, it is described
Second vertical portion is welded on the extension.
6. being used for the silencer of automobile exhaust system as claimed in claim 5, it is characterised in that: the first vertical portion contracting exists
In the port.
7. being used for the silencer of automobile exhaust system as claimed in claim 6, it is characterised in that: second vertical portion is close
The second baffle.
8. being used for the silencer of automobile exhaust system as described in claim 1, it is characterised in that: the shell is in L on the whole
Shape, the first baffle are also L-shaped with the second baffle.
9. being used for the silencer of automobile exhaust system as described in claim 1, it is characterised in that: the U-tube includes socket
Resonatron in second connecting tube, the resonatron are held on the second baffle, and the side of the resonatron is prolonged
It protrudes into the expansion chamber, the other side of the resonatron extends into second cavity.
10. being used for the silencer of automobile exhaust system as described in claim 1, it is characterised in that: set in first cavity
There is the glass fibre for the high-frequency sound that disappears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610899554.9A CN106285836B (en) | 2016-10-14 | 2016-10-14 | Silencer for automobile exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610899554.9A CN106285836B (en) | 2016-10-14 | 2016-10-14 | Silencer for automobile exhaust system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106285836A CN106285836A (en) | 2017-01-04 |
| CN106285836B true CN106285836B (en) | 2019-03-15 |
Family
ID=57718421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610899554.9A Active CN106285836B (en) | 2016-10-14 | 2016-10-14 | Silencer for automobile exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106285836B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017130661A1 (en) * | 2017-12-20 | 2019-06-27 | Montaplast Gmbh | Broadband damper for a motor vehicle engine |
| CN109184878A (en) * | 2018-10-12 | 2019-01-11 | 天纳克汽富晟(长春)汽车零部件有限公司 | Muffler assembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200964887Y (en) * | 2006-11-01 | 2007-10-24 | 洛阳西苑车辆与动力检验所有限公司 | Engine exhaust silencer |
| CN201546786U (en) * | 2009-11-17 | 2010-08-11 | 上海红湖消声器厂 | Exhaust muffler for gasoline engines |
| KR20110063118A (en) * | 2009-12-04 | 2011-06-10 | 현대자동차주식회사 | Silencers for Flexible Fuel Vehicles |
| CN202348379U (en) * | 2011-08-30 | 2012-07-25 | 重庆市北碚区枫火机械制造有限公司 | U-type exhaust pipe silencer |
| CN202690166U (en) * | 2012-05-23 | 2013-01-23 | 柳州利和排气控制系统有限公司 | Automobile muffle |
| CN204402621U (en) * | 2014-12-19 | 2015-06-17 | 江苏宗申三轮摩托车制造有限公司 | Motor tricycle baffler |
| CN206092124U (en) * | 2016-10-14 | 2017-04-12 | 上海天纳克排气系统有限公司 | A silencer for car exhaust system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101164152B1 (en) * | 2009-09-03 | 2012-07-11 | 현대자동차주식회사 | Muffler apparatus for vehicle |
-
2016
- 2016-10-14 CN CN201610899554.9A patent/CN106285836B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200964887Y (en) * | 2006-11-01 | 2007-10-24 | 洛阳西苑车辆与动力检验所有限公司 | Engine exhaust silencer |
| CN201546786U (en) * | 2009-11-17 | 2010-08-11 | 上海红湖消声器厂 | Exhaust muffler for gasoline engines |
| KR20110063118A (en) * | 2009-12-04 | 2011-06-10 | 현대자동차주식회사 | Silencers for Flexible Fuel Vehicles |
| CN202348379U (en) * | 2011-08-30 | 2012-07-25 | 重庆市北碚区枫火机械制造有限公司 | U-type exhaust pipe silencer |
| CN202690166U (en) * | 2012-05-23 | 2013-01-23 | 柳州利和排气控制系统有限公司 | Automobile muffle |
| CN204402621U (en) * | 2014-12-19 | 2015-06-17 | 江苏宗申三轮摩托车制造有限公司 | Motor tricycle baffler |
| CN206092124U (en) * | 2016-10-14 | 2017-04-12 | 上海天纳克排气系统有限公司 | A silencer for car exhaust system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106285836A (en) | 2017-01-04 |
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