CN2052814U - Exhuast muffler for diesel engine - Google Patents
Exhuast muffler for diesel engine Download PDFInfo
- Publication number
- CN2052814U CN2052814U CN 89212553 CN89212553U CN2052814U CN 2052814 U CN2052814 U CN 2052814U CN 89212553 CN89212553 CN 89212553 CN 89212553 U CN89212553 U CN 89212553U CN 2052814 U CN2052814 U CN 2052814U
- Authority
- CN
- China
- Prior art keywords
- core pipe
- perforated plate
- diesel engine
- muffler
- vent
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000003584 silencer Effects 0.000 description 8
- 230000030279 gene silencing Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 210000005239 tubule Anatomy 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Exhaust Silencers (AREA)
Abstract
The utility model relates to an exhaust muffler for diesel engine in which the composite structure of a secondary expansion chamber and a perforated plate is used. Ventholes are evenly arranged on the peripheral walls of a front core tube and a rear core tube. The perforated plate is fixedly arranged between the front and the rear core tubes; the ventholes on the perforated plate are divided into two areas which have different layout and arrangement modes. The muffler has the advantages of small exhaust resistance, good muffling performance, and simple structure.
Description
A kind of exhaust silencer of diesel engine.
Single-stage expanssion type exhaust silencer, the sound deadening capacity of diesel engine using are little at present, thereby have the diesel engine of this silencing apparatus, the noise that its exhaust sound of tractor is higher than other parts, become the main noise source of motor.A kind of tubule that has damping hole on the many perisporiums that is equipped with in expansion chamber is arranged in addition, though waste gas enters tubule from the damping hole on these tubules and discharges this kind silencing apparatus from muffler tail pipe again noise elimination effect is preferably arranged, but because of structure complicated, manufacturing is difficulty comparatively, and it is big that air communication is crossed resistance, the diesel engine power loss is more, therefore also is difficult to promote the use of.
It is good that the purpose of this utility model provides a kind of acoustic attenuation performance, and exhaust resistance is less, simple in structure, easily manufactured, cost is low, the diesel engine exhaust muffler of reliable operation.
Task of the present utility model is achieved in that this diesel engine silencer is made of suction tude joint, preceding core pipe, perforated plate, back core pipe, tail pipe and housing.Between preceding core pipe and back core pipe, be fixed with perforated plate, on preceding core pipe and the back core pipe perisporium and vent all arranged on the perforated plate.The vent of perforated plate divides two districts to have two kinds to arrange arrangement mode, be evenly distributed on two groups of orthogonal parallel lines at the district's vent that joins with back core pipe, the district that joins between the same core pipe and housing, vent is distributed on the concentric circle circumference, and the distribution of embarking on journey towards the perforated plate center.Vent on preceding core pipe and the back core pipe perisporium is being evenly distributed on the perisporium of embarking on journey.
Fig. 1 is the diesel engine exhaust muffler structural representation
Fig. 2 is the perforated plate plan view
Below in conjunction with accompanying drawing this silencing apparatus is described in further detail: the silencing apparatus of present embodiment is the S195 diesel engine exhaust muffler.Adopt secondary expansion chamber and perforated plate composite structure.Enlarge the silencing apparatus volume, improve expansion ratio, reasonably organize blast air to, reduce back pressure loss and power output loss, thereby reached reduction exhaust noise, oil consumption effectively and improved exhaust, the purpose of smoke intensity.Suppressor case (1) is respectively by two steel plate punching presses that have 1 millimeters thick that circular hole is installed, and is welded.Core pipe (2), perforated plate (3) and back core pipe (4) before welding is installed with in housing (1).Suction tude joint (5) and tail pipe (6) are weldingly fixed on the housing (1).Before core pipe (2) make with steel plate, on perisporium, evenly have 195 diameters and be 5 millimeters vent (7).Back core pipe (4) is made with steel plate, evenly has 70 diameters and be 5 millimeters vent (7) on perisporium.Perforated plate (3) is made with steel plate, in the district that joins with back core pipe (4), evenly have 21 diameters and be 5 millimeters vent (7), the district that joins between the same core pipe (2) and housing (1), vent (7) is distributed on three concentric circle circumferences, have 16 vents (7) on every layer of circumference, have 48 diameters altogether and be 5 millimeters vent (7), they become 16 row to distribute towards perforated plate (3) center.The silencing apparatus divergence ratio of present embodiment is 11.7, and volume ratio is 3.4, and the punching rate value selects 25%.
This diesel engine silencer is obtained obvious soundproof effect through stand and actual road test, and 10 fens tools of insertion loss, power loss is much smaller than 1%, average smoke intensity value is 4.05(Rb) few 3.7 grams of oil consumption on the external characteristics line/horsepower-hour. Its car load acceleration noise is 80.2dB(A), be better than the 86dB(A of country's " motor vehicle permission noise " regulation) standard, also than the now domestic use acceleration noise 82.6dB(A of silencer preferably) low. In use, this silencer sounds obvious reduction through the diesel exhaust noise of processing of eliminating the noise, and the smoke evacuation complexion is by the light black grey that becomes, and startability, the acceleration ratio of diesel engine are originally good simultaneously.
Simple in structure, convenient processing and manufacture that this silencer has, cost is low, and exhaust resistance is littler, and acoustic attenuation performance is good, and the advantages such as reliable operation are suitable for diesel engine silencer and use, and it is even more ideal to be particularly useful as the SS195 diesel engine exhaust muffler.
Claims (1)
- A kind of diesel engine exhaust muffler, by the suction tude joint, housing and tail pipe are formed, it is characterized in that connecting in the housing suction tude and tail pipe preceding core pipe (2) and back core pipe (4) are arranged, between preceding core pipe (2) and back core pipe (4), be fixed with perforated plate (3), perforated plate (3) has the vent (7) that is evenly distributed on the concentric circle circumference in the district that joins between the same core pipe (2) and the housing (1), perforated plate (3) has the equally distributed vent (7) of embarking on journey in the district that joins with back core pipe (4), have the equally distributed vent (7) of embarking on journey on preceding core pipe (2) and back core pipe (4) perisporium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89212553 CN2052814U (en) | 1989-06-02 | 1989-06-02 | Exhuast muffler for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89212553 CN2052814U (en) | 1989-06-02 | 1989-06-02 | Exhuast muffler for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2052814U true CN2052814U (en) | 1990-02-14 |
Family
ID=4868689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89212553 Pending CN2052814U (en) | 1989-06-02 | 1989-06-02 | Exhuast muffler for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2052814U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1995712B (en) * | 2006-01-06 | 2010-09-29 | 雅马哈发动机株式会社 | Muffler and vehicle equipped with muffler |
| CN101078362B (en) * | 2006-05-23 | 2010-12-08 | J.埃贝斯佩歇合资公司 | sheet metal parts |
-
1989
- 1989-06-02 CN CN 89212553 patent/CN2052814U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1995712B (en) * | 2006-01-06 | 2010-09-29 | 雅马哈发动机株式会社 | Muffler and vehicle equipped with muffler |
| CN101078362B (en) * | 2006-05-23 | 2010-12-08 | J.埃贝斯佩歇合资公司 | sheet metal parts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |