CN201771578U - Muffler - Google Patents
Muffler Download PDFInfo
- Publication number
- CN201771578U CN201771578U CN2010202783465U CN201020278346U CN201771578U CN 201771578 U CN201771578 U CN 201771578U CN 2010202783465 U CN2010202783465 U CN 2010202783465U CN 201020278346 U CN201020278346 U CN 201020278346U CN 201771578 U CN201771578 U CN 201771578U
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- CN
- China
- Prior art keywords
- silencing
- air bell
- air
- anechoic room
- outlet
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a muffler, which comprises a silencing tube, baffle plates and guide pipes, wherein the guide pipes are respectively installed at an air inlet end and an air outlet end of the silencing tube; the muffler is characterized in that the silencing tube is divided into at least three independent silencing chambers through the baffle plates; an air inlet passage and an air outlet passage are arranged in each silencing chamber; three-way air bells are fixedly connected to the air inlet passages and the air outlet passages, the air bells on the air inlet passages divide airflow into two parts to flow out in opposite directions so as to enter the silencing chambers, and the air bells on the air outlet passages divide airflow into two parts to enter in opposite directions so as to flow out in one stream after being converged. With the adoption of the technical scheme, the muffler has the advantages of simple structure and convenience of manufacturing, noises in waste gas can vertically impact the inner wall of the silencing tube during expanding to be weakened, and the noises in the waste gas can generate collision during retraction so as to obviously reduce the noises.
Description
Technical field
The utility model relates to a kind of silencing apparatus, particularly a kind ofly is used for piston-engined silencing apparatus.
Background technique
At present, existing silencing apparatus is by conduit, silencing pot and dividing plate constitute, the silencing pot inner route clapboard be separated into four independently the anechoic room conduit be connected exhaust opening of engine, on the anechoic room inner catheter, be installed with a plurality of holes, the engine exhaust that has a noise enters the first anechoic room intramedullary expansion from the hole of conduit, then, contraction directly enters second anechoic room from conduit, successively by four anechoic rooms, thereby make the noise in the waste gas weaken gradually, still, existing silencing apparatus, through the expansion of the 4th anechoic room with shrink the back when discharging, its noise does not drop to desirable degree.
The model utility content
The purpose of this utility model just provides a kind of simple in structure, easily manufactured silencing apparatus, and in process of expansion, it can make the noise bump silencing pot inwall in the waste gas, weaken noise, in contraction process, can also make in the waste gas noise clash, noise is obviously reduced.
The purpose of this utility model is to realize by such technological scheme, it comprises silencing pot, dividing plate and conduit, the inlet end of silencing pot and outlet side are installed conduit respectively, it is characterized in that: the silencing pot inner route clapboard is separated at least three independently anechoic rooms, be provided with the inlet, outlet passage in each anechoic room, equal air bell of intrinsic threeway on the inlet, outlet passage, air bell on the gas-entered passageway is divided into two strands with air-flow and goes out to enter anechoic room in opposite directions, and the air bell on the outlet passageway is divided into two strands with air-flow and relatively advances to accumulate after one and go out.
The utility model in use, the conduit of the inlet end of silencing pot is connected exhaust opening of engine, engine exhaust enters first anechoic room by conduit, owing to being divided into two strands with air-flow, the air bell on the gas-entered passageway goes out in opposite directions, make engine exhaust spray to the silencing pot inwall, in this process of expansion, make noise bump silencing pot inwall wherein, weaken noise, engine exhaust is when entering next anechoic room, relatively enter to accumulate one back and go out owing to the air bell on the outlet passageway is divided into two strands with air-flow, in this contraction process, make noise generation head-on collision wherein carry out noise reduction, noise is obviously reduced, the waste gas that noise is lowered enters atmosphere by the conduit of silencing pot outlet side.
Owing to adopted technique scheme, the utlity model has simple in structure, easily manufactured advantage, in process of expansion, it can make the noise bump silencing pot inwall in the waste gas, weaken noise, in contraction process, can also make in the waste gas noise clash, noise is obviously reduced.
Description of drawings
Description of drawings of the present utility model is as follows:
Fig. 1 is first kind of embodiment's of the utility model a structural representation;
Fig. 2 is second kind of embodiment's of the utility model a structural representation;
Fig. 3 is the third embodiment's of the utility model a structural representation;
Fig. 4 is the stereogram of first kind of structure of air bell in the utility model;
Fig. 5 is the stereogram of second kind of structure of air bell in the utility model;
Among the figure: 1. silencing pot; 2. dividing plate; 3. conduit; 4. anechoic room; 5. gas-entered passageway; 6. outlet passageway; 7. air bell; 8. it is cotton to eliminate the noise.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, 2, 3, the utility model comprises silencing pot 1, dividing plate 2 and conduit 3, the inlet end of silencing pot 1 and outlet side are installed conduit 3 respectively, it is characterized in that: silencing pot 1 inner route clapboard 2 is separated at least three independently anechoic rooms 4, be provided with inlet, outlet passage 5,6 in each anechoic room, equal air bell 7 of intrinsic threeway on inlet, outlet passage 5,6, air bell 7 on the gas-entered passageway 5 is divided into two strands with air-flow and goes out to enter anechoic room in opposite directions, and the air bell 7 on the outlet passageway 6 is divided into two strands with air-flow and relatively advances to accumulate after one and go out.
The utility model in use, the conduit of the inlet end of silencing pot 1 is connected exhaust opening of engine, engine exhaust enters first anechoic room by conduit, owing to being divided into two strands with air-flow, the air bell on the gas-entered passageway 5 goes out in opposite directions, make engine exhaust spray to the silencing pot inwall, in this process of expansion, make noise bump silencing pot inwall wherein, weaken noise, engine exhaust is when entering next anechoic room, relatively enter to accumulate one back and go out owing to the air bell on the outlet passageway 6 is divided into two strands with air-flow, in this contraction process, make noise generation head-on collision wherein carry out noise reduction, noise is obviously reduced, the waste gas that noise is lowered enters atmosphere by the conduit of silencing pot outlet side.
As shown in Figure 1, 2, 3, in order further to reduce noise, in each anechoic room 4, the angle that the center line of the center line of the outlet of the air bell 7 on the gas-entered passageway 5 of same anechoic room 4 and the import of the air bell 7 on the outlet passageway 6 intersects is right angle, acute angle or obtuse angle, and described crossing angle is that the right angle is a preferred forms.
Shown in Fig. 4,5, the tinsel that air bell 7 can take the shape of the letter U for cross section, the opening end of air bell 7 is fixed on the port of inlet, outlet passage 5,6.
During installation, air bell 7 can be welded on the inlet, outlet passage, also can adopt other Connecting format to be fixed on the inlet, outlet passage, the opening of gas-entered passageway 5 overdraught covers 7 and the opening of the air bell 7 on the outlet passageway 6 are perpendicular, i.e. the angle that the center line of the center line of the outlet of the air bell 7 on the gas-entered passageway 5 and the import of the air bell 7 on the outlet passageway 6 intersects is the right angle.During use, engine exhaust enters anechoic room through the opening of gas-entered passageway 5, air bell, both sides by air bell go out in opposite directions, by air bell air-flow being divided into two strands goes out in opposite directions, make vertical the spraying to the silencing pot inwall and enter anechoic room of engine exhaust, engine exhaust is entered relatively to accumulate by the both sides of air bell 7 again and enters outlet passageway 6 after one and enter next anechoic room or discharge by outlet passageway.
As shown in Figure 1, air bell 7 can be three-way pipe, and one of them port of the port of inlet, outlet passage and air bell 7 is threaded.Also can adopt other Connecting format that three-way pipe is connected on the inlet, outlet passage, as welding, snapping etc.Described three-way pipe is three-port structure commonly used.
During use, two other port that is positioned at the three-way pipe on the gas-entered passageway is divided into two strands with engine exhaust and goes out in opposite directions, make vertical the spraying to the silencing pot inwall and enter anechoic room of engine exhaust, engine exhaust is entered relatively to accumulate by two other port of three-way pipe again and enters outlet passageway 6 after one and enter next anechoic room or discharge by outlet passageway.In the same anechoic room, the center line of two outlets of air bell 7 is vertical mutually with the center line of two imports of another air bell, is more conducive to the reduction of noise.
As shown in Figure 1, can have certain distance between the air bell 7 of same anechoic room 4, even separate between the air bell 7 of same anechoic room 4.As shown in Figure 2, in order to gain in strength, can be fixed to one another between the air bell 7 of same anechoic room 4.As shown in Figure 3, fixed to one another between the air bell 7 in first anechoic room 4 and the most last anechoic room 4, have certain distance between the air bell 7 in all the other anechoic rooms 4.Certainly, can be as required, set in the anechoic room or between the air bell in several anechoic rooms separately or fixing together.
As shown in Figure 2, the number of anechoic room 4 can be four, and the number of anechoic room 4 also can be five certainly, even can be a plurality of.
As shown in Figure 1, 2, in order to improve the noise elimination effect, silencing pot 1 inwall is provided with eliminates the noise cotton 8.
Claims (9)
1. silencing apparatus, comprise silencing pot (1), dividing plate (2) and conduit (3), the inlet end of silencing pot (1) and outlet side are installed conduit (3) respectively, it is characterized in that: silencing pot (1) inner route clapboard (2) is separated at least three independently anechoic rooms (4), be provided with in each anechoic room, outlet passageway (5,6), advancing, equal air bell of intrinsic threeway (7) on the outlet passageway, air bell on the gas-entered passageway (7) is divided into two strands with air-flow and goes out to enter anechoic room in opposite directions, and the air bell on the outlet passageway (7) is divided into two strands with air-flow and relatively advances to accumulate after one and go out.
2. silencing apparatus as claimed in claim 1, it is characterized in that: in each anechoic room (4), the angle that the center line of the center line of the outlet of the air bell (7) on the gas-entered passageway (5) of same anechoic room (4) and the import of the air bell (7) on the outlet passageway (6) intersects is right angle, acute angle or obtuse angle.
3. silencing apparatus as claimed in claim 2 is characterized in that: the tinsel that air bell (7) takes the shape of the letter U for cross section, the opening end of air bell (7) is fixed on the port of inlet, outlet passage (5,6).
4. a kind of silencing apparatus as claimed in claim 2 is characterized in that: air bell (7) is a three-way pipe, and one of them port of the port of inlet, outlet passage and air bell (7) is threaded.
5. as claim 1,2,3 or 4 described silencing apparatuss, it is characterized in that: have certain distance between the air bell (7) of same anechoic room (4).
6. as claim 1,2,3 or 4 described silencing apparatuss, it is characterized in that: fixed to one another between the air bell (7) of same anechoic room (4).
7. as claim 1,2,3 or 4 described silencing apparatuss, it is characterized in that: fixed to one another between the air bell (7) in first anechoic room (4) and the most last anechoic room (4), have certain distance between the air bell (7) in all the other anechoic rooms (4).
8. silencing apparatus as claimed in claim 6 is characterized in that: the number of anechoic room (4) is four, five or a plurality of.
9. silencing apparatus as claimed in claim 6 is characterized in that: silencing pot (1) inwall is provided with eliminate the noise cotton (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202783465U CN201771578U (en) | 2010-08-02 | 2010-08-02 | Muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202783465U CN201771578U (en) | 2010-08-02 | 2010-08-02 | Muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201771578U true CN201771578U (en) | 2011-03-23 |
Family
ID=43751424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202783465U Expired - Fee Related CN201771578U (en) | 2010-08-02 | 2010-08-02 | Muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201771578U (en) |
-
2010
- 2010-08-02 CN CN2010202783465U patent/CN201771578U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20130802 |