CN204003006U - Muffler for internal-combustion engine - Google Patents
Muffler for internal-combustion engine Download PDFInfo
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- CN204003006U CN204003006U CN201420487206.7U CN201420487206U CN204003006U CN 204003006 U CN204003006 U CN 204003006U CN 201420487206 U CN201420487206 U CN 201420487206U CN 204003006 U CN204003006 U CN 204003006U
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- conical section
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- suction tude
- dividing plate
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Abstract
A kind of muffler for internal-combustion engine (1) has been proposed, comprise: main casing (3), have the first conical section, the second conical section and the columniform intermediate section between the two along same axial direction, arranged, intermediate section is connected with the bigger diameter end of the first and second conical section; And the miner diameter end of the first conical section has the first hole, the miner diameter end of the second conical section has the second hole; The first dividing plate (5), is arranged between the first conical section and intermediate section and vertical with described axis, on this first dividing plate, offers the first partition board hole; Suction tude (2), extends in intermediate section through the first hole and the first partition board hole, and suction tude is connected with the first conical section and the sealing of the first dividing plate and by the first conical section and the first membrane support; Outlet pipe (4), passes the second hole and extends in the second conical section.Based on technique scheme, can increase the join strength of suction tude and main casing, thereby provide effective support for suction tude.
Description
Technical field
The utility model relates to the baffler for internal-combustion engine of the exhaust noise that reduces motor.
Background technique
Muffler for internal-combustion engine generally comprises following structure: main casing, has first end and the second end in axial direction gone up; Suction tude, extends in main casing from described first end; Outlet pipe, extends in main casing and in main casing from described the second end, from the exhaust of suction tude, is passed in main casing by being discharged by outlet pipe.
But in existing muffler, suction tude is too complicated with respect to the fixing or structure of main casing, or fixing join strength is inadequate.
In addition, for muffler, need to realize and suppress exhaust sound and obtain the balance between desirable vehicle acceleration (reducing exhaust pressure loss).In prior art, also there are the needs of realizing both balances with simple structure.
Model utility content
An object of the present utility model is to provide a kind of muffler for internal-combustion engine, and it can provide the effective support to suction tude with simple structure.
Another object of the present utility model is to provide a kind of muffler for internal-combustion engine, and it can be realized and suppress exhaust sound and obtain the balance between desirable vehicle acceleration (reducing exhaust pressure loss) with simple structure.
According to an exemplary embodiment of the present utility model, a kind of muffler for internal-combustion engine has been proposed, comprise: main casing, have the first conical section, the second conical section and the columniform intermediate section between the two along same axial direction, arranged, this intermediate section is connected with the bigger diameter end of the second conical section with the bigger diameter end of described the first conical section; And the miner diameter end of described the first conical section has the first hole, the miner diameter end of described the second conical section has the second hole; The first dividing plate, this first dividing plate is arranged between described the first conical section and described intermediate section and is vertical with described axis, on this first dividing plate, offers the first partition board hole; Suction tude, described suction tude extends in described intermediate section through described the first hole and described the first partition board hole, and this suction tude is connected with described the first conical section and described the first dividing plate sealing and by described the first conical section and described the first membrane support; Outlet pipe, described outlet pipe passes described the second hole and extends in the second conical section.
In an optional embodiment, in described intermediate section, be also provided with the second partition perpendicular to described axis, and be furnished with a plurality of through tubes through described second partition along described axial direction; Between described the first dividing plate and the miner diameter end of described the first conical section, limit the first chamber; Between described second partition and described the first dividing plate, limit the second chamber, described the second chamber has the second cavity length on axial direction; Between the miner diameter end of described second partition and described the second cone, limit the 3rd chamber, described the 3rd chamber has the 3rd cavity length on axial direction; Described through tube has the 3rd length in the second chamber, and described through tube has the 4th length in the 3rd chamber; And described the 4th length is 1/2 of described the 3rd cavity length.
Further, described the 3rd length is 1/4 of described the second cavity length.
Further, described suction tude has the first length in described the second chamber, and described outlet pipe has the second length in described the 3rd chamber; And described the first length is 1/2 of described the second cavity length; Described the second length is 1/4 of described the 3rd cavity length.
Further, the ratio of described the second cavity length and described the 3rd cavity length is between 1.5:1-1.25:1.
In an optional embodiment, described outlet pipe and described suction tude coaxially arrange along described axial direction.Further, on described axial direction, described through tube and described outlet pipe and described suction tude are all spaced apart.
In an optional embodiment, described outlet pipe has the second length in described the 3rd chamber, and described the second length is less than the length of described the second conical section on axial direction.Further, described through tube and described the second conical section are spaced apart on axial direction.
In an optional embodiment, between described the first dividing plate and the miner diameter end of described the first conical section, limit the first chamber, the part of described suction tude in the first chamber is provided with opening area, and described suction tude is connected with described the first chamber by a plurality of holes of offering in described opening area.
Utilize the technical solution of the utility model, so because the miner diameter end of suction tude by the first dividing plate and the first conical section supports simultaneously, in the utility model, provide the effective support to suction tude with simple structure.
In addition, by selecting the length of through tube in the second chamber and the 3rd chamber, can in the situation that less exhaust choke apparatus is set, realize effective noise reduction.
Accompanying drawing explanation
Fig. 1 is according to the schematic diagram of the muffler of an exemplary embodiment of the present utility model.
Embodiment
Describe the embodiment of exemplary of the present utility model below in detail, embodiment's example is shown in the drawings, and wherein same or analogous label represents same or analogous element.The embodiment who describes below with reference to accompanying drawing is exemplary, is intended to explain the utility model, and can not be interpreted as restriction of the present utility model.
1 describe according to the muffler of an exemplary embodiment of the present utility model with reference to the accompanying drawings.
As shown in Figure 1, this muffler 1 comprises:
Main casing 3, has the first conical section, the second conical section and the columniform intermediate section between the two along same axial direction, arranged, and this intermediate section is connected with the bigger diameter end of the second conical section with the bigger diameter end of described the first conical section; And the miner diameter end of described the first conical section has the first hole, the miner diameter end of described the second conical section has the second hole;
The first dividing plate 5, this first dividing plate is arranged between described the first conical section and described intermediate section and is vertical with described axis, on this first dividing plate, offers the first partition board hole;
Suction tude 2, described suction tude 2 extends in described intermediate section through described the first hole and described the first partition board hole, and this suction tude is connected with described the first conical section and described the first dividing plate sealing and by described the first conical section and described the first membrane support;
Outlet pipe 4, described outlet pipe 4 passes described the second hole and extends in the second conical section.
Utilize the technical solution of the utility model, because the miner diameter end of suction tude 2 by the first dividing plate 5 and the first conical section supports simultaneously, so, in the utility model, with simple structure, provide the effective support to suction tude 2.
Referring to Fig. 1, in described intermediate section, be also provided with the second partition 6 of arranging perpendicular to suction tude, and be furnished with a plurality of through tubes 7 through described second partition along described axial direction; Between described the first dividing plate and the miner diameter end of described the first conical section, limit the first chamber C1; Between described second partition and described the first dividing plate, limit the second chamber C2, described the second chamber has the second cavity length A on axial direction; Between the miner diameter end of described second partition and described the second cone, limit the 3rd chamber C3, described the 3rd chamber has the 3rd cavity length B on axial direction; Described through tube has the 3rd length L 3 in the second chamber, and described through tube has the 4th length L 4 in the 3rd chamber; And described the 4th length L 4 is 1/2 of described the 3rd cavity length B.
In further alternative embodiment, described the 3rd length L 3 is 1/4 of described the second cavity length A.
The number of through tube 7 can be 2 or 3 or more, on the circumferencial direction about described axial direction, uniformly-spaced arranges.
By selecting the length of through tube 7 in the second chamber C2 and/or the 3rd chamber C3, can in the situation that less exhaust choked flow piece is set, realize effective noise reduction.
In further alternative embodiment, described suction tude has the first length L 1 in described the second chamber, and described outlet pipe has the second length L 2 in described the 3rd chamber; And described the first length L 1 is 1/2 of described the second cavity length A; Described the second length L 2 is 1/4 of described the 3rd cavity length B.
In further alternative embodiment, the ratio of the second cavity length A and the 3rd cavity length B is between 1.5:1-1.25:1.
In addition, referring to accompanying drawing 1, described outlet pipe 4 and described suction tude 2 coaxially arrange along described axial direction.Outlet pipe 4 and suction tude 2 can have identical caliber.
As shown in Figure 1, on described axial direction, described through tube 7 is all spaced apart with described outlet pipe 4 and described suction tude 2.
In an optional example of the present utility model, referring to Fig. 1, described the second length L 2 is less than the second conus portion length in the axial direction.Further, described through tube 7 is spaced apart in the axial direction with described the second conus portion.
In an optional example of the present utility model, as shown in Figure 1, the part of described suction tude 2 in the first chamber is provided with opening area 21, can further play the effect of noise reduction.
In an optional example of the present utility model, can be only in the part in the first chamber of suction tude 2, be provided with opening area, particularly, between described the first chamber C1 and the second chamber C2, only by opening area 21 and described suction tude 2, be communicated with; And only by described through tube 7, be communicated with between described the 3rd chamber C3 and the second chamber C2.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that not departing from principle of the present utility model and spirit and can change these embodiments.Applicable scope of the present utility model is limited by claims and equivalent thereof.
Claims (10)
1. the muffler for internal-combustion engine (1), comprising:
Main casing (3), has the first conical section, the second conical section and the columniform intermediate section between the two along same axial direction, arranged, and this intermediate section is connected with the bigger diameter end of the second conical section with the bigger diameter end of described the first conical section; And the miner diameter end of described the first conical section has the first hole, the miner diameter end of described the second conical section has the second hole;
The first dividing plate (5), this first dividing plate is arranged between described the first conical section and described intermediate section and is vertical with described axis, on this first dividing plate, offers the first partition board hole;
Suction tude (2), described suction tude (2) extends in described intermediate section through described the first hole and described the first partition board hole, and this suction tude is connected with described the first conical section and described the first dividing plate sealing and by described the first conical section and described the first membrane support;
Outlet pipe (4), described outlet pipe (4) passes described the second hole and extends in the second conical section.
2. muffler according to claim 1, wherein:
In described intermediate section, be also provided with the second partition (6) perpendicular to described axis, and be furnished with a plurality of through tubes (7) through described second partition along described axial direction;
Between described the first dividing plate and the miner diameter end of described the first conical section, limit the first chamber (C1);
Between described second partition and described the first dividing plate, limit the second chamber (C2), described the second chamber has the second cavity length (A) on axial direction;
Between the miner diameter end of described second partition and described the second cone, limit the 3rd chamber (C3), described the 3rd chamber has the 3rd cavity length (B) on axial direction;
Described through tube has the 3rd length (L3) in the second chamber, and described through tube has the 4th length (L4) in the 3rd chamber; And,
Described the 4th length (L4) is 1/2 of described the 3rd cavity length (B).
3. muffler according to claim 2, wherein:
Described the 3rd length (L3) is 1/4 of described the second cavity length (A).
4. according to the muffler described in claim 2 or 3, wherein:
Described suction tude has the first length (L1) in described the second chamber, and described outlet pipe has the second length (L2) in described the 3rd chamber; And,
Described the first length (L1) is 1/2 of described the second cavity length (A);
Described the second length (L2) is 1/4 of described the 3rd cavity length (B).
5. according to the muffler described in claim 2 or 3, wherein:
The ratio of described the second cavity length (A) and described the 3rd cavity length (B) is between 1.5:1-1.25:1.
6. muffler according to claim 1, wherein:
Described outlet pipe and described suction tude coaxially arrange along described axial direction.
7. muffler according to claim 6, wherein:
On described axial direction, described through tube and described outlet pipe and described suction tude are all spaced apart.
8. muffler according to claim 1, wherein:
Described outlet pipe has the second length (L2) in described the 3rd chamber, and described the second length (L2) is less than the length of described the second conical section on axial direction.
9. muffler according to claim 8, wherein:
Described through tube and described the second conical section are spaced apart on axial direction.
10. muffler according to claim 1, wherein:
Between described the first dividing plate and the miner diameter end of described the first conical section, limit the first chamber (C1), the part of described suction tude (2) in the first chamber is provided with opening area (21), and described suction tude is connected with described the first chamber by a plurality of holes of offering in described opening area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420487206.7U CN204003006U (en) | 2014-08-27 | 2014-08-27 | Muffler for internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420487206.7U CN204003006U (en) | 2014-08-27 | 2014-08-27 | Muffler for internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003006U true CN204003006U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420487206.7U Active CN204003006U (en) | 2014-08-27 | 2014-08-27 | Muffler for internal-combustion engine |
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| CN (1) | CN204003006U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569773A (en) * | 2015-11-05 | 2016-05-11 | 潘泉方 | Exhaust silencer of diesel engine or internal combustion engine |
| CN108167056A (en) * | 2017-12-25 | 2018-06-15 | 河南隆鑫机车有限公司 | The method of engine efficiency in the case of promotion tricycle high speed |
| CN116220861A (en) * | 2023-03-31 | 2023-06-06 | 浙江春风动力股份有限公司 | Motorcycle |
-
2014
- 2014-08-27 CN CN201420487206.7U patent/CN204003006U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569773A (en) * | 2015-11-05 | 2016-05-11 | 潘泉方 | Exhaust silencer of diesel engine or internal combustion engine |
| CN108167056A (en) * | 2017-12-25 | 2018-06-15 | 河南隆鑫机车有限公司 | The method of engine efficiency in the case of promotion tricycle high speed |
| CN116220861A (en) * | 2023-03-31 | 2023-06-06 | 浙江春风动力股份有限公司 | Motorcycle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |