CN204082264U - The secondary muffler structure of outlet pipe - Google Patents
The secondary muffler structure of outlet pipe Download PDFInfo
- Publication number
- CN204082264U CN204082264U CN201420431322.7U CN201420431322U CN204082264U CN 204082264 U CN204082264 U CN 204082264U CN 201420431322 U CN201420431322 U CN 201420431322U CN 204082264 U CN204082264 U CN 204082264U
- Authority
- CN
- China
- Prior art keywords
- end cap
- outlet pipe
- layer
- inner core
- urceolus
- 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 discloses the secondary baffler of a kind of outlet pipe, it comprises the urceolus of cylindrical structure; Urceolus two ends are provided with lower end cap, upper end cap; Inner core is had to run through end cap; Glass wool layer is filled with between urceolus and inner core; Left section of inner core has been evenly arranged honeycomb hole.Disclosed in application the utility model, the secondary baffler manufacturing process of outlet pipe is simple, and quieter material layer is made up of glass staple layer, overcoming original quieter material glass wool batt layer needs starching to shape, and pulp layer is disintegrated by temperatures involved thus caused the problem of the short and baffler later stage erasure effect of operating life.
Description
Technical field
The utility model relates to automobile exhaust pipe, refers to the secondary muffler structure of a kind of outlet pipe particularly.
Background technique
The secondary baffler (having another name called CHAMBER.EXH) of outlet pipe as outlet pipe in exhausting air time noise reduction for the first time important spare part, ensure that outlet pipe abating the noise when discharging waste gas serves huge effect, its Main Function and principle: 1. 2. use sound absorbing material noise reduction by decay of expanding.
The secondary muffler structure of outlet pipe in past is because its at least two-layer structure, and this style has 3 shortcomings.
First: manufacturing process complexity (1, steel wool twisting cohesion; 2, starching; 3, interior glass wool twisting cohesion; 4, outer glass wool twisting cohesion; 5, three axle starchings; 6, dry; 7, outer barrel two rewinding spot welding/crimping; 8, glass wool press-in; 9, limit is taken turns; 10, airtight inspection.)
Second: weight increases (structure of at least two-layer quieter material and 2 rewindings can make whole component weight increase).
3rd: cost increases and (because of the complexity of its manufacturing process, impels the increasing number of its manufacturing equipment or expensive.In addition, the maintaining expense of multiple equipment also can increase).
4th; Operating life is short, and (because temperature during work is higher in outlet pipe, the pulp layer that starching is formed at high temperature is disintegrated gradually.The quieter materials such as the steel wool fixed by pulp layer, glass wool progressively disintegrate, fragmentation; Be discharged to from outlet pipe again outside car body; Have a strong impact on the erasure effect of baffler).
Model utility content
The utility model object is to provide a kind of secondary muffler structure of outlet pipe overcoming the short problem of existing baffler operating life.
The purpose of this utility model is achieved in the following ways:
The secondary muffler structure of outlet pipe, it comprises the urceolus of cylindrical structure; Described urceolus two ends are provided with lower end cap, upper end cap; Inner core is had to run through described upper end cap, lower end cap; Glass staple layer is filled with between described urceolus and described inner core; Left section of described inner core has been evenly arranged honeycomb hole.
It is simple that usefulness of the present utility model is only to use one deck quieter material, manufacturing process; And overcome original technology and use pulp layer to fix quieter material to be subject to the drawback that temperatures involved disintegrates, operating life, and the erasure effect in later stage has had and has significantly promoted.
Accompanying drawing explanation
Fig. 1 is the secondary muffler structure schematic cross-section of the utility model outlet pipe.
Fig. 2 is the secondary muffler structure perspective view of the utility model outlet pipe.
Fig. 3 is the secondary muffler structure schematic diagram of old-fashioned outlet pipe.
In figure: urceolus 1; End cap 2; Lower end cap 21; Upper end cap 22; Inner core 3; Glass staple layer 4; Honeycomb hole 5; Interior glass wool layer 9; Outer glass wool layer 10; Steel wool layer 11.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, but this embodiment should not be construed restriction of the present utility model.
As shown in drawings, the secondary muffler structure of outlet pipe, it comprises the urceolus 1 of cylindrical structure; Described urceolus 1 two ends are provided with lower end cap 21, upper end cap 22; Inner core 3 is had to run through described lower end cap 21, described upper end cap 22; Glass staple layer 4 is filled with between described urceolus 1 and described inner core 3; Left section of described inner core 3 has been evenly arranged honeycomb hole 5.
Be below erasure effect laboratory data of the present utility model, experimenter tests a large amount of bafflers, and wherein on volume attenuation, under tolerance, volume attenuation, tolerance is the noise reduction experimental result of the baffler that in a large amount of sample, erasure effect is best and the poorest.And a large amount of data result integrated distribution is near sample 1, sample 2.Data obtain thus, and quantification production baffler finished product meets the requirement to erasure effect completely.
Below do not elaborate, be prior art.
Claims (1)
1. the secondary muffler structure of outlet pipe, is characterized in that: it comprises the urceolus (1) of cylindrical structure; Described urceolus (1) two ends are provided with lower end cap (21), upper end cap (22); Inner core (3) is had to run through described lower end cap (21) and described upper end cap (22); Glass staple layer (4) is filled with between described urceolus (1) and described inner core (3); Left section of described inner core (3) has been evenly arranged honeycomb hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420431322.7U CN204082264U (en) | 2014-07-31 | 2014-07-31 | The secondary muffler structure of outlet pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420431322.7U CN204082264U (en) | 2014-07-31 | 2014-07-31 | The secondary muffler structure of outlet pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082264U true CN204082264U (en) | 2015-01-07 |
Family
ID=52174993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420431322.7U Expired - Fee Related CN204082264U (en) | 2014-07-31 | 2014-07-31 | The secondary muffler structure of outlet pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165078A (en) * | 2014-07-31 | 2014-11-26 | 武汉三惠敏实汽车零部件有限公司 | Exhaust pipe auxiliary silencer structure and manufacturing technology thereof |
-
2014
- 2014-07-31 CN CN201420431322.7U patent/CN204082264U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165078A (en) * | 2014-07-31 | 2014-11-26 | 武汉三惠敏实汽车零部件有限公司 | Exhaust pipe auxiliary silencer structure and manufacturing technology 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20160731 |