CN102011637A - Single-grade single-barrel sound attenuation exhaust pipe - Google Patents
Single-grade single-barrel sound attenuation exhaust pipe Download PDFInfo
- Publication number
- CN102011637A CN102011637A CN2010105831499A CN201010583149A CN102011637A CN 102011637 A CN102011637 A CN 102011637A CN 2010105831499 A CN2010105831499 A CN 2010105831499A CN 201010583149 A CN201010583149 A CN 201010583149A CN 102011637 A CN102011637 A CN 102011637A
- Authority
- CN
- China
- Prior art keywords
- outlet pipe
- exhaust pipe
- main
- sound attenuation
- barrel
- 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.)
- Granted
Links
- 239000011229 interlayer Substances 0.000 claims abstract description 12
- 239000011358 absorbing material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003584 silencer Effects 0.000 abstract 4
- 238000013016 damping Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The invention discloses a single-grade single-barrel sound attenuation exhaust pipe relating to the field of transportation tools. The single-grade single-barrel sound attenuation exhaust pipe comprises an exhaust pipe, an interlayer outer wall, a main sound conduction cavity, a main silencer, an exhaust pipe, a sound attenuation barrel, a ventilating clapboard and a tail-end exhaust pipe, wherein the exhaust pipe is sealed and connected with the main sound conduction cavity sealed and connected with the main silencer; the interlayer outer wall is arranged on the outer side of the main sound conduction cavity communicated with the sound attenuation barrel via the exhaust pipe; the sound attenuation barrel is communicated with the tail-end exhaust pipe; the ventilating clapboard is arranged between the sound attenuation barrel and the tail-end exhaust pipe; the main silencer is installed oppositely to the exhaust port of the exhaust pipe; the main sound conduction cavity adopts an interlayer vacuum structure; the main silencer adopts a clapboard structure; and a bottom layer is lined with a damping material. The invention has simple structure, good sound attenuation effect and low cost.
Description
Technical field
The present invention relates to the apparatus of transport field, be specifically related to single-stage monotubular noise reduction outlet pipe.
Background technique
Automobile noise reduction outlet pipe is an extremely matured product, and its basic structure and working principle decades almost do not change, new low price and the relevant patent of well behaved noise reduction outlet pipe is actually rare.
Summary of the invention
The purpose of this invention is to provide a kind of single-stage monotubular noise reduction outlet pipe, it is simple in structure, and erasure effect is good, and cost is low.
In order to solve the existing problem of background technique, the present invention is by the following technical solutions: it comprises outlet pipe 1, interlayer outer wall 2, main acoustic chamber 3, main baffler 4, outlet pipe 5, hush pipe 6, ventilative dividing plate 7, tail end outlet pipe 8; Outlet pipe 1 is tightly connected with main acoustic chamber 3, main acoustic chamber 3 is tightly connected with main baffler 4, interlayer outer wall 2 is arranged on the outside in main acoustic chamber 3, the interlayer outer wall 2 in main acoustic chamber 3 is communicated with hush pipe 6 by outlet pipe 5, hush pipe 6 is communicated with tail end outlet pipe 8, and ventilative dividing plate 7 is arranged between hush pipe 6 and the tail end outlet pipe 8.
Described main baffler 4 is installed in the relief opening opposite of outlet pipe 1; The laminated vacuum structure is adopted in main acoustic chamber 3; Main baffler 4 adopts diaphragm structure, back lining sound absorbing material.
The present invention has following beneficial effect: simple in structure, erasure effect is good, and cost is low.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Referring to Fig. 1, this embodiment by the following technical solutions: it comprises outlet pipe 1, interlayer outer wall 2, main acoustic chamber 3, main baffler 4, outlet pipe 5, hush pipe 6, ventilative dividing plate 7, tail end outlet pipe 8; Outlet pipe 1 is tightly connected with main acoustic chamber 3, main acoustic chamber 3 is tightly connected with main baffler 4, interlayer outer wall 2 is arranged on the outside in main acoustic chamber 3, the interlayer outer wall 2 in main acoustic chamber 3 is communicated with hush pipe 6 by outlet pipe 5, hush pipe 6 is communicated with tail end outlet pipe 8, and ventilative dividing plate 7 is arranged between hush pipe 6 and the tail end outlet pipe 8.
Described main baffler 4 is installed in the relief opening opposite of outlet pipe 1; The laminated vacuum structure is adopted in main acoustic chamber 3; Main baffler 4 adopts diaphragm structure, back lining sound absorbing material.
Working procedure: engine operation, during internal-combustion engine vent-pipe 1 combustion gas, also constituted simultaneously a noise source, sound wave is propagated forward, in the process of propagating, because the laminated vacuum structure is adopted in the acoustic chamber, sound wave is difficult to appear the acoustic chamber, air-flow is when changing the flow direction, and sound wave still propagates into forward in the main muffler 4, and baffler adopts diaphragm structure, the back lining sound absorbing material, overwhelming majority acoustic wave energy, off-gas flows enter into main acoustic chamber 4 after outlet pipe 5 to hush pipe 6, is discharged by tail end outlet pipe 8.
Claims (4)
1. single-stage monotubular noise reduction outlet pipe is characterized in that it comprises outlet pipe (1), interlayer outer wall (2), main acoustic chamber (3), main baffler (4), outlet pipe (5), hush pipe (6), ventilative dividing plate (7), tail end outlet pipe (8); Outlet pipe (1) is tightly connected with main acoustic chamber (3), main acoustic chamber (3) is tightly connected with main baffler (4), interlayer outer wall (2) is arranged on the outside in main acoustic chamber (3), the interlayer outer wall (2) in main acoustic chamber (3) is communicated with hush pipe (6) by outlet pipe (5), hush pipe (6) is communicated with tail end outlet pipe (8), and ventilative dividing plate (7) is arranged between hush pipe (6) and the tail end outlet pipe (8).
2. single-stage monotubular noise reduction outlet pipe according to claim 1 is characterized in that described main baffler (4) is installed in the relief opening opposite of outlet pipe 1.
3. single-stage monotubular noise reduction outlet pipe according to claim 1 is characterized in that described main acoustic chamber (3) employing laminated vacuum structure.
4. single-stage monotubular noise reduction outlet pipe according to claim 1 is characterized in that described main baffler (4) adopts diaphragm structure, back lining sound absorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010583149.9A CN102011637B (en) | 2010-12-12 | 2010-12-12 | Single-grade single-barrel sound attenuation exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010583149.9A CN102011637B (en) | 2010-12-12 | 2010-12-12 | Single-grade single-barrel sound attenuation exhaust pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102011637A true CN102011637A (en) | 2011-04-13 |
| CN102011637B CN102011637B (en) | 2013-05-08 |
Family
ID=43841946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010583149.9A Expired - Fee Related CN102011637B (en) | 2010-12-12 | 2010-12-12 | Single-grade single-barrel sound attenuation exhaust pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102011637B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2441980Y (en) * | 2000-08-04 | 2001-08-08 | 毛毳 | Engine silencer with silencing material on end cover |
| US20040006970A1 (en) * | 2002-07-10 | 2004-01-15 | Siegfried Worner | Exhaust gas system |
| CN201884111U (en) * | 2010-12-12 | 2011-06-29 | 昆明理工大学 | Single-stage single-cylinder silencing exhaust pipe |
-
2010
- 2010-12-12 CN CN201010583149.9A patent/CN102011637B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2441980Y (en) * | 2000-08-04 | 2001-08-08 | 毛毳 | Engine silencer with silencing material on end cover |
| US20040006970A1 (en) * | 2002-07-10 | 2004-01-15 | Siegfried Worner | Exhaust gas system |
| CN201884111U (en) * | 2010-12-12 | 2011-06-29 | 昆明理工大学 | Single-stage single-cylinder silencing exhaust pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102011637B (en) | 2013-05-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |