CN201786419U - Diesel engine silencer - Google Patents
Diesel engine silencer Download PDFInfo
- Publication number
- CN201786419U CN201786419U CN2010205189746U CN201020518974U CN201786419U CN 201786419 U CN201786419 U CN 201786419U CN 2010205189746 U CN2010205189746 U CN 2010205189746U CN 201020518974 U CN201020518974 U CN 201020518974U CN 201786419 U CN201786419 U CN 201786419U
- Authority
- CN
- China
- Prior art keywords
- housing
- pipe
- diesel engine
- casing
- inner 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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Abstract
The utility model relates to a diesel engine silencer, which comprises a cylindrical casing. An inner tube is arranged in the casing coaxially, sound absorbing cotton is filled in clearance between the casing and the inner tube, an air inlet pipe extends into the inner tube radially from one side of the casing and penetrates into the inner tube, air holes are uniformly distributed on the wall of the air inlet pipe, and an air outlet pipe is communicated with the casing. The diesel engine silencer is simple in structure, fine in noise reduction capacity and is high-temperature resistant and gas-corrosion resistant, can be supported independently, and can be expanded freely when in running or stopping so that an exhaust pipeline can not be loaded excessively due to installation of the silencer, and safety and reliability of operation of the exhaust pipeline can be guaranteed.
Description
Technical field
The utility model belongs to Diesel Engine Technique Field, is specifically related to diesel engine exhaust muffler.
Background technique
Along with the raising of environmental consciousness, Abgasgesetz is strict day by day, and diesel engine also improves the requirement of emission performance thereupon, reduces exhaust emissions of diesel engine thing and noise and just becomes the requisite hardware that improves the diesel emission performance.From reducing the angle of noise, reasonably the design of exhaust silencer will become the best means that reduces exhaust sound.When the high-temp waste gas of motor with at a high speed when exhaust duct enters baffler because the increase gradually at silencing pot interface, air-flow is expanded, flow velocity reduces, powerful microseismic noise is decayed, but when each expansion chamber of air-flow process, air-flow can only pass through from having the hole tube core that dams, so air-flow is compressed suddenly, be divided into many threads, expanded suddenly again then, so repeatedly several times, acoustic energy is weakened greatly, thereby has played the effect that reduces exhaust sound.Existing exhaust silencer mostly is the structure that has dividing plate in the housing greatly, and this design exists cost height, big, the quality deficiency heavily of volume.
The model utility content
The problem that existing diesel exhaust silencer volume is big in order to solve, quality is heavy, cost is high, the utility model provides a kind of volume little, light weight, is easy to fixed installation, the tangible diesel engine silencer of noise reduction.
Structure-design technique scheme of the present utility model is as follows:
Diesel engine silencer comprises columned housing 2, pipe 8 in coaxial being provided with in the housing 2, and housing 2 one sides are provided with suction tude 4, opposite side steam outlet pipe 7, described interior pipe 8 is the foraminate pipe of sandwich tape, is provided with noise reduction cotton 3 in the space between described housing 2 and the interior pipe 8; Pipe 8 in described suction tude 4 is radially stretched into by housing 2 one sides, and run through and be positioned at pipe 8 is positioned on the tube wall of managing 8 suction tude 4 and is laid with pore; Described steam outlet pipe 7 is being communicated with housing 2.
The outside, described housing 2 middle parts is provided with mounting bracket 5.
Described suction tude 4 diameters are less than steam outlet pipe 7 diameters.
Useful technique effect of the present utility model is:
1, the utility model acoustic wave filter structure is simple, and high temperature resistant gasproof body corrodes, and good noise reduction capability is arranged.
But 2, silencing apparatus separate support, but free expansion when diesel engine operation and stoppage in transit makes exhaust duct not because of the installation of silencing apparatus is subjected to additional load, guarantees the safety reliability of exhaust duct work.
3, interior pipe of the present utility model can effectively reduce exhaust sound for the foraminate pipe of sandwich tape.
Description of drawings
Fig. 1 is the utility model structural representation, and the suction tude place is cut open,
Fig. 2 is the sectional view at steam outlet pipe place among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done to describe further by embodiment.
Embodiment:
Referring to Fig. 1 and Fig. 2, diesel engine silencer comprises columned housing 2, pipe 8 in being coaxially installed with in the housing 2, and interior pipe 8 is the foraminate pipe of sandwich tape; Be provided with noise reduction cotton 3 in the space between housing 2 and the interior pipe 8.Pipe 8 in suction tude 4 is radially stretched into by housing 2 one sides, and run through and be positioned at pipe 8 is positioned on the tube wall of managing 8 suction tude 4 and is laid with pore; Steam outlet pipe 7 is being communicated with housing 2; Suction tude 4 diameters are less than steam outlet pipe 7 diameters.The outside, housing 2 middle parts is welded with mounting bracket 5.
This exhaust silencer is installed in diesel engine flywheel end.Silencing apparatus directly is fixed on the flywheel casing by the support that is welded on the housing, and the silencing apparatus suction port directly is connected with the outlet pipe air outlet.But exhaust silencer is installed in independent support on the flywheel, makes exhaust duct not bear additional load, the reliability of the exhaust duct work of assurance.
When the high-temp waste gas of motor with at a high speed through exhaust duct, silencing apparatus suction tude 4 enter in the suppressor case, owing to there is sandwich tape to manage 8 in foraminate in the housing, make air-flow be compressed suddenly, be divided into many threads, acoustic energy is weakened greatly, thereby has played the effect that reduces exhaust sound.The suction tude diameter of diesel engine exhaust muffler can effectively reduce exhaust back pressure less than the muffler outlet piper diameter, thereby has reduced the power loss of diesel engine.
Claims (3)
1. diesel engine silencer, comprise columned housing (2), the coaxial interior pipe (8) that is provided with in the housing (2), housing (2) one sides are provided with suction tude (4), opposite side steam outlet pipe (7), pipe (8) is the foraminate pipe of sandwich tape in described, it is characterized in that: be provided with noise reduction cotton (3) in the space between described housing (2) and the interior pipe (8); Described suction tude (4) radially stretches into interior pipe (8) by housing (2) one sides, and runs through and be positioned at pipe (8), is positioned on the tube wall of suction tude (4) of pipe (8) to be laid with pore; Described steam outlet pipe (7) is being communicated with housing (2).
2. diesel engine silencer according to claim 1 is characterized in that: the outside, described housing (2) middle part is provided with mounting bracket (5).
3. diesel engine silencer according to claim 1 is characterized in that: described suction tude (4) diameter is less than steam outlet pipe (7) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205189746U CN201786419U (en) | 2010-09-02 | 2010-09-02 | Diesel engine silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205189746U CN201786419U (en) | 2010-09-02 | 2010-09-02 | Diesel engine silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786419U true CN201786419U (en) | 2011-04-06 |
Family
ID=43818387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205189746U Expired - Fee Related CN201786419U (en) | 2010-09-02 | 2010-09-02 | Diesel engine silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786419U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134355A (en) * | 2015-09-09 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Silencer and manufacturing method thereof |
| CN109681409A (en) * | 2019-03-11 | 2019-04-26 | 石家庄宝石克拉大径塑管有限公司 | A kind of noise-reducing silencer, vacuum intake pump and vacuum intake pump silencer installation method |
-
2010
- 2010-09-02 CN CN2010205189746U patent/CN201786419U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134355A (en) * | 2015-09-09 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Silencer and manufacturing method thereof |
| CN109681409A (en) * | 2019-03-11 | 2019-04-26 | 石家庄宝石克拉大径塑管有限公司 | A kind of noise-reducing silencer, vacuum intake pump and vacuum intake pump silencer installation method |
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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: 20110406 Termination date: 20110902 |