CN105240089A - Automobile silencer - Google Patents
Automobile silencer Download PDFInfo
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- CN105240089A CN105240089A CN201510716872.2A CN201510716872A CN105240089A CN 105240089 A CN105240089 A CN 105240089A CN 201510716872 A CN201510716872 A CN 201510716872A CN 105240089 A CN105240089 A CN 105240089A
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- automobile
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- tubing string
- exhaust
- insulation board
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Abstract
The invention provides an automobile silencer, and belongs to the technical field of automobiles. The automobile silencer solves the problem about how to adjust the exhaust volume of an automobile exhaust pipe according to different automobile conditions in an adaptation manner. An automobile comprises a first exhaust pipe column communicated with the air outlet end of an automobile engine and a second exhaust pipe column communicated with the outside. The first exhaust pipe column and the second exhaust pipe column are connected through the silencer. The silencer comprises a cylindrical shell. A cavity is formed in the shell. A movable sound isolation plate is in sliding connection in the shell. The cavity is divided into an upper cavity body and a lower cavity body through the movable sound isolation plate. The air outlet end of the first exhaust pipe column and the air inlet end of the second exhaust pipe column are both located in the lower cavity body. An elastic piece is fixedly connected between the lower surface of the movable sound isolation plate and the bottom of the lower cavity body. According to the silencer, by means of the exhaust amount of the exhaust pipe columns, the exhaust volume of the automobile can be adjusted according to the different automobile conditions in the adaptation manner, so that the using requirements of consumers for the exhaust volume are met, and the noise pollution to the environment is avoided.
Description
Technical field
The invention belongs to automobile technical field, relate to a kind of baffler of automobile.
Background technique
Automobile exhaust system is positioned at vehicle bottom, connecting engine outlet side and air, and Main Function is waste gas, purifying exhaust air, the reduction noise that discharge motor produces.Its structure is primarily of compositions such as ternary catalyzing unit, pipe, rubber hanger, bafflers.In the exhaust process of motor car engine, gas goes out relief opening fast, because pressure and speed and ambient air differ greatly, will produce huge noise, therefore, generally all needs to install baffler to reduce noise.
As Chinese patent [application number: 201310391008.0; Application publication number: CN103452623A] disclose a kind of silencing apparatus, comprise housing, described housing is provided with suction tude and outlet pipe, described suction tude and outlet pipe all with housing conducting, described suction tude is all connected with Taper Pipe with outlet pipe, the Taper Pipe that described suction tude connects is connected with Taper Pipe lid by spring, be provided with multiple insulation board in described housing, this invention structure is simple, reasonable in design, effectively can reduce noise, can power loss be reduced again.
But what require automotive performance along with Consumer improves constantly, a lot of automobile vendor is also diversified to the definition of automotive performance style.For the automobile of sports type style, automobile, under idling operation, will feel the sensation that vehicle power is surge to people outside car, and now the exhaust voice of outlet pipe wants effectively loud and clear; But under the operating mode accelerated and run at high speed, the exhaust sound in car can not be too large, can not cause noise pollution to environment and affect the life of people.Obviously, there is following defect in above-mentioned silencing apparatus: because insulation board and housing are fixed, and cannot control the size being vented volume according to the size through the air displacement of silencing apparatus under different speed of a motor vehicle operating mode.In addition, in prior art, in order to increase the exhaust voice of automobile under idling operation, improvement can be reduced to the noise elimination volume between insulation board and housing, causing the exhaust volume under accelerating mode greatly to increase like this, thus noise pollution is caused to environment.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose the baffler of automobile, the technical problem that the present invention solves how to enable the exhaust volume of automobile exhaust pipe carry out adapting to regulate to reach the object not only meeting user demand but also can avoid causing environment noise pollution according to different vehicle condition.
Object of the present invention realizes by following technical proposal: a kind of baffler of automobile, described automobile comprises the exhaust tubing string one communicated with motor car engine outlet side and the exhaust tubing string two communicated with the external world, described exhaust tubing string one is crossed baffler with exhaust tubing string two-way and is connected, described baffler comprises cylindrical housing, in described housing, there is cavity, it is characterized in that, movable insulation board is slidably connected in described housing, above-mentioned cavity is separated into epicoele and cavity of resorption by described movable insulation board, the outlet side of described exhaust tubing string one and the inlet end of described exhaust tubing string two are all positioned at described cavity of resorption, elastic component is fixed with between the lower surface of described movable insulation board and the bottom of cavity of resorption.
Be different from prior art, the working principle of this baffler is by arranging movable insulation board in the housing of baffler, the cavity in housing is made to be divided into epicoele and cavity of resorption, the gas utilizing exhaust tubing string one to discharge makes movable insulation board relatively to slide by housing, the volume size of cavity of resorption can be changed according to air displacement size, and by arranging elastic component, make the volume of cavity of resorption can carry out controllably adaptations according to the air displacement size under different vehicle condition, thus the exhaust volume of automobile under different vehicle condition can be automatically adjusted, to meet the user demand of Consumer.Specifically, under automobile is in idling vehicle condition, now, flow and the flow velocity of exhaust tubing string one Exhaust Gas are less, the thrust that gas produces is not enough to overcome the elastic force effect of elastic component and the relative housing of movable insulation board is slided, and the cavity of resorption constancy of volume, makes exhaust voice loud and clear; Under automobile is in acceleration or high speed vehicle condition, now, flow and the flow velocity of exhaust tubing string one Exhaust Gas are larger, the thrust that gas produces overcomes the elastic force effect of elastic component and makes the relative housing of movable insulation board moves, cavity of resorption volume becomes large, has both absorbed portion gas kinetic energy in this way, again by increasing cavity of resorption volume, thus exhaust sound amount is diminished, avoid causing noise pollution to environment; By above design, make the exhaust volume of automobile exhaust pipe can carry out adaptation according to different vehicle condition and regulate, meet the user demand of Consumer, simultaneously also can not to environment.In addition, just can be realized the adjustment of exhaust sound by the elasticity coefficient of adjustable elastic part, tuning is convenient.
In the baffler of above-mentioned automobile, described elastic component is spring, and one end of described spring is fixed on the lower surface of movable insulation board, and the other end of described spring is fixed on the bottom of cavity of resorption.When automobile is in idling vehicle condition, air displacement is little, and spring is in compressive state, the cavity of resorption constancy of volume, and now exhaust gives great volume; When automobile is in acceleration or high speed vehicle condition, air displacement is large, and spring is in extended state, and cavity of resorption volume becomes large, is now vented volume little; Thus, make automobile exhaust volume can carry out adaptation according to different vehicle condition and regulate, not only meet Consumer's user demand but also can avoid causing noise pollution to environment.
Alternatively, in the baffler of above-mentioned automobile, described elastic component is corrugated metal clips, and one end of described metal clips is fixed on the lower surface of movable insulation board, and the other end of described metal clips is fixed on the bottom of cavity of resorption.When automobile is in idling vehicle condition, air displacement is little, and metal clips is in bending state, the cavity of resorption constancy of volume, and now exhaust gives great volume; When automobile is in acceleration or high speed vehicle condition, air displacement is large, and spring is in straight condition, and cavity of resorption volume becomes large, is now vented volume little.
In the baffler of above-mentioned automobile, described movable insulation board have with described exhaust tubing string one and be vented the pilot hole that tubing string two-phase coordinates, described exhaust tubing string one and exhaust tubing string two penetrate in housing from the top of housing along the axial direction of housing respectively and also pass pilot hole and extend in cavity of resorption.Exhaust tubing string one and exhaust tubing string two are all fixed on car body, in the sliding process of movable insulation board, exhaust tubing string one and exhaust tubing string two play leading role, make movable insulation board sliding process more stable, and the adaptability being conducive to the exhaust volume when tackling different vehicle condition regulates automatically.
In the baffler of above-mentioned automobile, in described cavity of resorption, be also fixed with fixing insulation board, described fixing insulation board is provided with vent and resigning hole.According to different automobile types, different noise reduction demands determines the quantity of this fixing insulation board, thus reaches the object reducing noise further.
Compared with prior art, the baffler of this automobile has the following advantages: this baffler by arranging the layout of movable insulation board, elastic component and exhaust tubing string in housing, utilize the air displacement of exhaust tubing string, make automobile exhaust volume can carry out adaptation according to different vehicle condition to regulate, thus meet the user demand of Consumer to exhaust volume, turn avoid and noise pollution is caused to environment.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of baffler in the present embodiment one.
Fig. 2 is the internal structure schematic diagram of baffler in the present embodiment two.
Fig. 3 is the structural representation of movable insulation board in this baffler.
Fig. 4 is the structural representation fixing insulation board in this baffler.
In figure, 1, exhaust tubing string one; 2, tubing string two is vented; 3, housing; 31, cavity; 31a, epicoele; 31b, cavity of resorption; 4, movable insulation board; 41, pilot hole; 5, spring; 6, metal clips; 7, fixing insulation board; 71, vent; 72, resigning hole.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Embodiment one:
The baffler of this automobile comprises housing 3, cavity 31, epicoele 31a, cavity of resorption 31b, movable insulation board 4, pilot hole 41, spring 5, metal clips 6, fixing insulation board 7, vent 71, resigning hole 72.
Specifically, automobile comprises the exhaust tubing string 1 communicated with motor car engine outlet side and the exhaust tubing string 22 communicated with the external world, and exhaust tubing string 1 is connected by baffler with exhaust tubing string 22.Gas in exhaust tubing string 1 enters in exhaust tubing string 22 through baffler again, then is discharged to the external world by exhaust tubing string 22.As shown in Figure 1, this baffler comprises in cylindric and have the housing 3 of cavity 31, slidably connects movable insulation board 4 in housing 3.Above-mentioned cavity 31 is separated into epicoele 31a and cavity of resorption 31b by movable insulation board 4, and the outlet side of exhaust tubing string 1 and the inlet end of exhaust tubing string 22 are all positioned at cavity of resorption 31b.Elastic component is fixed with between the lower surface of movable insulation board 4 and the bottom of cavity of resorption 31b.Elastic component is spring 5, and one end of spring 5 is fixed on the lower surface of movable insulation board 4, and the other end of spring 5 is fixed on the bottom of cavity of resorption 31b.
As shown in Figure 3, movable insulation board 4 have with exhaust tubing string 1 and be vented the pilot hole 41 that tubing string 22 matches, exhaust tubing string 1 and exhaust tubing string 22 to penetrate in housing 3 from the top of housing 3 along the axial direction of housing 3 and pass pilot hole 41 respectively and extend in cavity of resorption 31b.Also be fixed with fixing insulation board 7 in cavity of resorption 31b, as shown in Figure 4, fixing insulation board 7 be provided with vent 71 and resigning hole 72.
Embodiment two:
Technological scheme in the present embodiment is substantially identical with the technological scheme in embodiment one, difference is, as shown in Figure 2, in the present embodiment, elastic component is corrugated metal clips 6, one end of metal clips 6 is fixed on the lower surface of movable insulation board 4, and the other end of metal clips 6 is fixed on the bottom of cavity of resorption 31b.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the term such as exhaust tubing string 1, exhaust tubing string 22, housing 3, cavity 31, epicoele 31a, cavity of resorption 31b, movable insulation board 4, pilot hole 41, spring 5, metal clips 6, fixing insulation board 7, vent 71, resigning hole 72 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (5)
1. the baffler of an automobile, described automobile comprises the exhaust tubing string one (1) communicated with motor car engine outlet side and the exhaust tubing string two (2) communicated with the external world, described exhaust tubing string one (1) is connected by baffler with exhaust tubing string two (2), described baffler comprises cylindrical housing (3), there is in described housing (3) cavity (31), it is characterized in that, movable insulation board (4) is slidably connected in described housing (3), above-mentioned cavity (31) is separated into epicoele (31a) and cavity of resorption (31b) by described movable insulation board (4), the outlet side of described exhaust tubing string one (1) and the inlet end of described exhaust tubing string two (2) are all positioned at described cavity of resorption (31b), elastic component is fixed with between the lower surface of described movable insulation board (4) and the bottom of cavity of resorption (31b).
2. the baffler of automobile according to claim 1, it is characterized in that, described elastic component is spring (5), one end of described spring (5) is fixed on the lower surface of movable insulation board (4), and the other end of described spring (5) is fixed on the bottom of cavity of resorption (31b).
3. the baffler of automobile according to claim 1, it is characterized in that, described elastic component is corrugated metal clips (6), one end of described metal clips (6) is fixed on the lower surface of movable insulation board (4), and the other end of described metal clips (6) is fixed on the bottom of cavity of resorption (31b).
4. the baffler of the automobile according to claim 1 or 2 or 3, it is characterized in that, described movable insulation board (4) have with described exhaust tubing string one (1) and be vented the pilot hole (41) that tubing string two (2) matches, described exhaust tubing string one (1) and exhaust tubing string two (2) to penetrate in housing (3) from the top of housing (3) along the axial direction of housing (3) respectively and extend in cavity of resorption (31b) through pilot hole (41).
5. the baffler of the automobile according to claim 1 or 2 or 3, it is characterized in that, also be fixed with fixing insulation board (7) in described cavity of resorption (31b), described fixing insulation board (7) be provided with vent (71) and resigning hole (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510716872.2A CN105240089B (en) | 2015-10-29 | 2015-10-29 | A kind of muffler of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510716872.2A CN105240089B (en) | 2015-10-29 | 2015-10-29 | A kind of muffler of automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105240089A true CN105240089A (en) | 2016-01-13 |
| CN105240089B CN105240089B (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510716872.2A Active CN105240089B (en) | 2015-10-29 | 2015-10-29 | A kind of muffler of automobile |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2856435Y (en) * | 2005-09-30 | 2007-01-10 | 重庆长安汽车股份有限公司 | Autocar rear silencer assembly |
| CN101289952A (en) * | 2008-06-03 | 2008-10-22 | 重庆大学 | Expanding cavity adjustable exhaust silencer |
| US20090045007A1 (en) * | 2007-08-13 | 2009-02-19 | Counts Paul H | Muffler with cyclonic plates |
| CN201865728U (en) * | 2010-11-29 | 2011-06-15 | 重庆凯宝动力机械有限公司 | Exhaust silencer of gasoline engine |
| CN202281694U (en) * | 2011-09-06 | 2012-06-20 | 浙江吉利汽车研究院有限公司 | Automobile exhaust silencer test device |
| CN103775169A (en) * | 2012-10-17 | 2014-05-07 | 天津市七星精密机械有限公司 | Low-noise damping exhaust silencer |
| CN103835786A (en) * | 2012-11-27 | 2014-06-04 | 雅马哈发动机株式会社 | Muffler and saddle type vehicle |
| CN204877593U (en) * | 2015-07-23 | 2015-12-16 | 邓厚才 | It outes circular amortization of single tail drum singly to flow back while advancing |
-
2015
- 2015-10-29 CN CN201510716872.2A patent/CN105240089B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2856435Y (en) * | 2005-09-30 | 2007-01-10 | 重庆长安汽车股份有限公司 | Autocar rear silencer assembly |
| US20090045007A1 (en) * | 2007-08-13 | 2009-02-19 | Counts Paul H | Muffler with cyclonic plates |
| CN101289952A (en) * | 2008-06-03 | 2008-10-22 | 重庆大学 | Expanding cavity adjustable exhaust silencer |
| CN201865728U (en) * | 2010-11-29 | 2011-06-15 | 重庆凯宝动力机械有限公司 | Exhaust silencer of gasoline engine |
| CN202281694U (en) * | 2011-09-06 | 2012-06-20 | 浙江吉利汽车研究院有限公司 | Automobile exhaust silencer test device |
| CN103775169A (en) * | 2012-10-17 | 2014-05-07 | 天津市七星精密机械有限公司 | Low-noise damping exhaust silencer |
| CN103835786A (en) * | 2012-11-27 | 2014-06-04 | 雅马哈发动机株式会社 | Muffler and saddle type vehicle |
| CN204877593U (en) * | 2015-07-23 | 2015-12-16 | 邓厚才 | It outes circular amortization of single tail drum singly to flow back while advancing |
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| Publication number | Publication date |
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| CN105240089B (en) | 2019-03-01 |
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