CN202756058U - Internal-combustion engine double-layer heat insulation impedance combined type muffler - Google Patents
Internal-combustion engine double-layer heat insulation impedance combined type muffler Download PDFInfo
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- CN202756058U CN202756058U CN 201220343185 CN201220343185U CN202756058U CN 202756058 U CN202756058 U CN 202756058U CN 201220343185 CN201220343185 CN 201220343185 CN 201220343185 U CN201220343185 U CN 201220343185U CN 202756058 U CN202756058 U CN 202756058U
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- combustion engine
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Abstract
The utility model provides an internal-combustion engine double-layer heat insulation impedance combined type muffler which comprises a hollow shell body, an air intake tube, an air discharge tube, a stream distributing tube, a first partition board and a second partition board, wherein the first partition board and the second partition board divide the shell body into a first cavity, a second cavity and a third cavity. The first partition board is near an air inlet of the shell body, the second partition board is near an air outlet of the shell body, and the air intake tube stretches into the first cavity. The air discharge tube penetrates through the second partition board and stretches into the second cavity. The stream distributing tube is communicated with the first cavity and the third cavity. A reflowing hole is arranged in the second partition board. Waste gas produced when an internal-combustion engine works goes through three times decompression, so air discharge noise is reduced obviously.
Description
Technical field
The utility model relates to a kind of silencing apparatus, especially for the silencing apparatus of internal-combustion engine.
Background technique
Internal-combustion engine burns in the course of the work and produces a large amount of waste gas and form serious noise pollution, therefore the toxic emission of internal-combustion engine must cooperate silencing apparatus to use, large quantity of exhaust gas that silencing apparatus can produce combustion in IC engine is discharged, and the noise that produces of the gas of flowing of producing in combustion process of decay internal-combustion engine and rapid expanding.The structure of existing silencing apparatus is generally comparatively simple, it generally includes a housing, is installed on suction tude and outlet pipe in the housing, suction tude and outlet pipe are arranged at respectively the two ends of housing, the noise reduction of this silencing apparatus is not very desirable, and silencing apparatus in use surface temperature is often too high.
The model utility content
The utility model provides a kind of internal-combustion engine double thermal insulation impedance complex formula silencing apparatus, and its purpose is to overcome the defects that prior art exists.
The technical solution of the utility model is as follows:
Internal-combustion engine double thermal insulation impedance complex formula silencing apparatus comprises housing, suction tude, outlet pipe, the ram's horns of hollow and the first dividing plate and the second partition that housing is separated into the first cavity, the second cavity and the 3rd cavity.Described the first dividing plate is near the suction port of housing, and second partition is near the air outlet of housing, and suction tude stretches in the first cavity; Outlet pipe is arranged in second partition and stretches in the second cavity; Ram's horns is communicated in the first cavity and the 3rd cavity; Offer return port on the second partition.
As improvement of the present utility model, offer vent on the sidewall of the described suction tude end of stretching into the first cavity; Stretch on the sidewall of outlet pipe end of the second cavity and offer vent.
As further improvement of the utility model, housing is stratiform structure, and it comprises outer thermal-protective coating, outer sleeve, inner insulating layer and grid lining successively within outer.
Further improve as of the present utility model, inner insulating layer is the asbestos inner insulating layer; Outer thermal-protective coating is the outer thermal-protective coatings of asbestos.
Be compared with existing technology to description of the present utility model as can be known by above-mentioned, the utility model has the advantage of:
1, the relief opening of suction tude and internal-combustion engine joins, gas enters the decompression of the first cavity by suction tude, enter the 3rd cavity by ram's horns again, carry out the secondary decompression, the 3rd cavity gas enters the second cavity through the return port of second partition, carries out three decompressions, and the gas of the second cavity enters in the atmosphere through outlet pipe again, waste gas is through three decompressions, and exhaust sound significantly reduces during internal combustion engine.
2, the housing of silencing apparatus has inside and outside thermal-protective coating, by double thermal insulation the silencing apparatus surface temperature is obviously reduced.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the first dividing plate.
Fig. 3 is the structural representation of second partition.
Embodiment
Embodiment of the present utility model is described with reference to the accompanying drawings.
With reference to Fig. 1, internal-combustion engine double thermal insulation impedance complex formula silencing apparatus comprises housing, flanged joint 2, suction tude 3, outlet pipe 4, the first dividing plate 5, second partition 6 and ram's horns 7.Housing is stratiform structure, it comprises the outer thermal-protective coating 11 of asbestos, columniform outer sleeve 12, asbestos inner insulating layer 13 and grid lining 14 from outside to inside successively, grid lining 14 is rolled into lining by pass grid galvanized sheet metal, and outer sleeve 12 and grid lining 14 compress asbestos inner insulating layer 13 jointly.Continuation is with reference to Fig. 1, and the first dividing plate 5 and second partition 6 separate housing and form the first cavity 8, the second cavity 9 and the 3rd cavity 10, the first dividing plates 5 near the suction port of housing, and second partition 6 is near the air outlet of housing, and suction tude 3 stretches in the first cavity 8.
With reference to Fig. 2, offer on the first dividing plate 5 and evenly offer shunting pore 51 simultaneously; Simultaneously with reference to Fig. 3, the middle part of second partition 6 offers exhaust duct aperture 62, and periphery offers shunting pore 61 and the return port 63 corresponding with the shunting pore 51 of the first dividing plate 5.One end of each ram's horns 7 is connected in the shunting pore 51 of the first dividing plate 5; The other end is connected in the shunting pore 61 on the second partition 6, and the first cavity 8 and the 3rd cavity 10 are communicated with; Outlet pipe 4 is arranged in exhaust duct aperture 62 and stretches in the second cavity 9.As can be seen from Figure 1, stretch on the sidewall of suction tude 3 ends of the first cavity 8 and offer vent 31; Stretch on the sidewall of outlet pipe 4 ends of the second cavity 9 and offer vent 41.
The relief opening of suction tude 3 and internal-combustion engine joins, during work, waste gas enters 8 decompressions of the first cavity by suction tude 3, enter the 3rd cavity 10 by ram's horns 7 again, carry out the secondary decompression, the gas of the 3rd cavity 10 enters the second cavity 9 through the return port 63 of second partition 6, carry out three decompressions, the gas of the second cavity 9 enters in the atmosphere through outlet pipe 4 again, and waste gas is through three decompressions, and exhaust sound is significantly reduced during internal combustion engine.
Above-mentioned only is embodiment of the present utility model, but design concept of the present utility model is not limited to this, allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (4)
1. internal-combustion engine double thermal insulation impedance complex formula silencing apparatus, the housing, suction tude and the outlet pipe that comprise hollow, it is characterized in that: also comprise ram's horns and the first dividing plate and the second partition that housing are separated into the first cavity, the second cavity and the 3rd cavity, described the first dividing plate is near the suction port of housing, described second partition is near the air outlet of housing, and described suction tude stretches in the first cavity; Described outlet pipe is arranged in second partition and stretches in the second cavity; Described ram's horns is communicated in the first cavity and the 3rd cavity; Offer return port on the described second partition.
2. internal-combustion engine double thermal insulation impedance complex formula silencing apparatus according to claim 1 is characterized in that: offer vent on the sidewall of the described suction tude end of stretching into the first cavity; Stretch on the sidewall of outlet pipe end of the second cavity and offer vent.
3. internal-combustion engine double thermal insulation impedance complex formula silencing apparatus according to claim 1, it is characterized in that: described housing is stratiform structure, it comprises outer thermal-protective coating, outer sleeve, inner insulating layer and grid lining successively within outer.
4. internal-combustion engine double thermal insulation impedance complex formula silencing apparatus according to claim 3, it is characterized in that: described inner insulating layer is the asbestos inner insulating layer; Outer thermal-protective coating is the outer thermal-protective coatings of asbestos.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220343185 CN202756058U (en) | 2012-07-17 | 2012-07-17 | Internal-combustion engine double-layer heat insulation impedance combined type muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220343185 CN202756058U (en) | 2012-07-17 | 2012-07-17 | Internal-combustion engine double-layer heat insulation impedance combined type muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756058U true CN202756058U (en) | 2013-02-27 |
Family
ID=47735245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220343185 Expired - Fee Related CN202756058U (en) | 2012-07-17 | 2012-07-17 | Internal-combustion engine double-layer heat insulation impedance combined type muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756058U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334821A (en) * | 2013-07-08 | 2013-10-02 | 山东大学 | Transverse flow perforated pipe silencer structure with flow blocking grid |
| CN104775886A (en) * | 2015-04-09 | 2015-07-15 | 常州市双娇管业有限公司 | Silencing exhaust hose and diesel generator thereof |
| CN110067628A (en) * | 2019-05-29 | 2019-07-30 | 泰豪电源技术有限公司 | A kind of interior-type double thermal insulation exhaust silencer |
| CN114607498A (en) * | 2022-04-21 | 2022-06-10 | 重庆兰羚天和科技股份有限公司 | Heat insulation plate structure of automobile muffler and mounting structure thereof |
-
2012
- 2012-07-17 CN CN 201220343185 patent/CN202756058U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334821A (en) * | 2013-07-08 | 2013-10-02 | 山东大学 | Transverse flow perforated pipe silencer structure with flow blocking grid |
| CN103334821B (en) * | 2013-07-08 | 2015-06-17 | 山东大学 | Transverse flow perforated pipe silencer structure with flow blocking grid |
| CN104775886A (en) * | 2015-04-09 | 2015-07-15 | 常州市双娇管业有限公司 | Silencing exhaust hose and diesel generator thereof |
| CN110067628A (en) * | 2019-05-29 | 2019-07-30 | 泰豪电源技术有限公司 | A kind of interior-type double thermal insulation exhaust silencer |
| CN114607498A (en) * | 2022-04-21 | 2022-06-10 | 重庆兰羚天和科技股份有限公司 | Heat insulation plate structure of automobile muffler and mounting structure thereof |
| CN114607498B (en) * | 2022-04-21 | 2024-05-14 | 重庆兰羚天和科技股份有限公司 | Heat insulation plate structure of automobile muffler and mounting structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130227 Termination date: 20180717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |