CN2228541Y - Exhaust silencer for internal combusion engine - Google Patents
Exhaust silencer for internal combusion engine Download PDFInfo
- Publication number
- CN2228541Y CN2228541Y CN94241983U CN94241983U CN2228541Y CN 2228541 Y CN2228541 Y CN 2228541Y CN 94241983 U CN94241983 U CN 94241983U CN 94241983 U CN94241983 U CN 94241983U CN 2228541 Y CN2228541 Y CN 2228541Y
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- outer cylinder
- tube
- interior
- garden tube
- 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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- Exhaust Silencers (AREA)
Abstract
The utility model relates to an exhaust silencer for an internal combustion engine on the exhaust pipeline of the internal combustion engine for reducing the exhaust noise of the internal combustion engine. The exhaust silencer is composed of an outer cylinder body, an inner cylinder, a small cylinder, a spiral sheet, a partition plate, and a seal head. The inner cylinder and the outer cylinder body are concentric. A space between the inner cylinder and the outer cylinder body is divided into a plurality of sections through the partition plate. The inner cylinder is divided into two sections through the partition plate. The small cylinder is arranged on the partition plate between the first two sections of the outer cylinder body and the inner cylinder. The spiral sheet is arranged in the spaces of the third section of the outer cylinder body and the inner cylinder. The seal head is arranged at the both ends of the outer cylinder body and is connected with the outer cylinder body and the inner cylinder. Compared with a present silencer, the utility model has the advantages of obvious effect of denoising and reduction of the exhaust back pressure of the exhaust pipe.
Description
The utility model is the utensil that reduces the exhaust sound of internal-combustion engine for being used to of using on the internal combustion engine exhaust pipe.
According to the interrelated data retrieval, also there be not the I. C. engine exhaust silencing apparatus identical at present with the utility model structure.Interior pipe first quarter or the more piece that the structure (as automobile, tractor) of the silencing apparatus that present I. C. engine exhaust is used all adopts the interior dress of exhaust duct to be drilled with porous expands, compression is eliminated the noise.The deficiency of this silencing apparatus is that exhaust resistance is bigger, the noise elimination weak effect.
It is little that order of the present utility model provides a kind of exhaust resistance, the effective I. C. engine exhaust silencing apparatus of eliminating the noise.
The purpose of this utility model is achieved through the following technical solutions.I. C. engine exhaust is made up of outer cylinder body, interior garden tube, little garden tube, screw piece, dividing plate and end socket with silencing apparatus, and interior garden tube and outer cylinder body are concentric; Dividing plate is divided into multistage to the space between interior garden tube and outer cylinder body, and interior garden tube is divided into two sections; Little garden wound packages is on the outer cylinder body and the dividing plate between the tube of interior garden of the first two section; Screw piece is contained in the space of the 3rd section outer cylinder body and interior garden tube, and links with outer cylinder body and interior garden tube.End socket is contained in the two ends of outer cylinder body, and links with outer cylinder body and interior garden tube.
On the tube barrel of interior garden many exhausting holes are arranged vertically, take out to many exhausting holes are also arranged tube barrel upper edge, little garden.Little garden tube has a plurality of.Screw piece is a bull.The pitch of screw piece is not wait.Two ends of interior garden tube all stretch out end socket.The space of the interior space of little garden tube and the 3rd section outer cylinder body and interior garden tube communicates.After making by technique scheme, carry out being contained on the outlet pipe of internal-combustion engine after the surface treatment (as chromium plating, send out orchid, baking finish etc.), can play and reduce the exhaust noise effect.
The utility model is compared with silencing apparatus with at present used I. C. engine exhaust, and it is more obvious to have noise reduction, the advantage that the exhaust back pressure of outlet pipe slightly descends.
Accompanying drawing 1 is a structural representation of the present utility model.
Among the figure: 1---outer cylinder body; 2---little garden tube; 3---dividing plate; 4---interior garden tube; 5---screw piece; 6---end socket.
Below in conjunction with description of drawings use condition of the present utility model, after the gas of internal combustion engine air vent enters the leading portion of interior garden tube 4 by direction shown in Figure 1, enter first between outer cylinder body 1 and the interior garden tube 4 through the many exhausting holes on the barrel of interior garden tube 4, in second section space, many exhausting holes on the barrel of little garden tube 2 enter in the little garden tube 2, enter thus in the 3rd section space between outer cylinder body 1 and the interior garden tube 4, owing in this section screw piece 5 is housed, therefore air-flow is followed the Hand of spiral rotation of screw piece 5 (screw piece is because of linking with inside and outside garden tube, be actionless), in in rotation, making air-flow the many rounds on tube 4 barrels of interior garden entering orderly in the garden tube 4, a part of gas is directly discharged, in another part gas enters space between last section outer cylinder body 1 and the interior garden tube 4 along the many exhausting holes on tube 4 barrels of interior garden, in being entered by the many exhausting holes on tube 4 barrels of interior garden, temporary back discharges in the garden tube 4, because air-flow is through expanding, compression is eliminated the noise, three sections noise eliminations that the spiral rotation is eliminated the noise and energy storage is eliminated the noise, therefore, its noise elimination effect is more obvious, and exhaust back pressure slightly descends.The utility model when implementing, bandwidth equals in, punch on the band of garden tube 4 (or little garden tube 2) girth earlier (as punching or roll the hole).Then the band high frequency welding rolling machine on pipe crimping; Outer cylinder body can directly equal strip width band pipe crimping (outer cylinder body can be done garden shape or ellipse garden shape) on the rolling machine of band high frequency welding of outer cylinder body girth, screw piece processed, and then welding, can improve work efficiency like this.
Claims (6)
1, a kind of I. C. engine exhaust silencing apparatus is characterized in that being made up of outer cylinder body, interior garden tube, little garden tube, screw piece, dividing plate and end socket; Interior garden tube and outer cylinder body are concentric; Dividing plate is divided into multistage to the space between interior garden tube and outer cylinder body, and interior garden tube is divided into two sections; Little garden wound packages is on the outer cylinder body and the dividing plate between the tube of interior garden of the first two section; Screw piece is contained in the space of the 3rd section outer cylinder body and interior garden tube, and links with outer cylinder body and interior garden tube; End socket is contained in the two ends of outer cylinder body, and links with outer cylinder body and interior garden tube.
2, by the described I. C. engine exhaust silencing apparatus of claim 1, on the tube barrel of garden many exhausting holes are arranged vertically in it is characterized in that, on the tube barrel of little garden many exhausting holes are arranged also vertically.
3, by the described I. C. engine exhaust silencing apparatus of claim 1, it is characterized in that little garden tube has a plurality of.
4, by the described I. C. engine exhaust silencing apparatus of claim 1, it is characterized in that screw piece is a bull, the pitch of screw piece is not wait.
5,, it is characterized in that it being that two ends of interior garden tube all stretch out end socket by the described I. C. engine exhaust silencing apparatus of claim 1.
6, by the described I. C. engine exhaust silencing apparatus of claim 1, it is characterized in that the interior space of little garden tube and the space of the 3rd section outer cylinder body and interior garden tube communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94241983U CN2228541Y (en) | 1994-05-27 | 1994-05-27 | Exhaust silencer for internal combusion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94241983U CN2228541Y (en) | 1994-05-27 | 1994-05-27 | Exhaust silencer for internal combusion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2228541Y true CN2228541Y (en) | 1996-06-05 |
Family
ID=33848653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94241983U Expired - Fee Related CN2228541Y (en) | 1994-05-27 | 1994-05-27 | Exhaust silencer for internal combusion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2228541Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371013B (en) * | 2006-01-17 | 2011-06-01 | 丰田自动车株式会社 | Muffler structure for vehicle |
| CN107331381A (en) * | 2017-05-12 | 2017-11-07 | 南京大学 | A kind of broadband acoustics coupler |
-
1994
- 1994-05-27 CN CN94241983U patent/CN2228541Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371013B (en) * | 2006-01-17 | 2011-06-01 | 丰田自动车株式会社 | Muffler structure for vehicle |
| CN107331381A (en) * | 2017-05-12 | 2017-11-07 | 南京大学 | A kind of broadband acoustics coupler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |