CN204099007U - Motorcycle exhaust pipe binodal catalyst structure - Google Patents
Motorcycle exhaust pipe binodal catalyst structure Download PDFInfo
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- CN204099007U CN204099007U CN201420480376.2U CN201420480376U CN204099007U CN 204099007 U CN204099007 U CN 204099007U CN 201420480376 U CN201420480376 U CN 201420480376U CN 204099007 U CN204099007 U CN 204099007U
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- urceolus
- binodal
- carrier
- catalyst
- exhaust pipe
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Abstract
The utility model discloses a kind of motorcycle exhaust pipe binodal catalyst structure, be made up of urceolus and carrier, blank pipe is provided with between two urceolus joints of binodal catalyst, the two ends of blank pipe adopt welding procedure to be connected with two urceolus, blank pipe makes to form interval between two urceolus, fill carrier in urceolus, carrier has catalyzer, carrier is combined by two S type foil.The utility model can improve tail gas conversion ratio, increases the service life.
Description
Technical field
The utility model relates to a kind of motorcycle exhaust pipe binodal catalyst structure.
Background technique
The structure of motorcycle exhaust pipe, is made up of parts such as conduit, binodal catalyst and tail pipes.Binodal catalyst is assembled in outlet pipe.The tail gas of motorcycle emission enters in outlet pipe, carry out chemical reaction with the carrier surface catalyzer in binodal catalyst, the tail gas after carbon monoxide (CO), hydrocarbon (HC), nitrogen oxide (Nax) content reduce is in conduit is again from tailpipe to air.
Wherein, traditional binodal catalyst 10 structure as depicted in figs. 1 and 2, be made up of urceolus 102 and carrier 101, two urceolus 102 joints of binodal catalyst 10 directly adopt welding procedure to connect, there is no interval between two urceolus 102, in urceolus 102, fill carrier 101, carrier 101 has catalyzer, carrier 101 is cellular, is combined by concentric circle foil.During the binodal catalyst 10 using this traditional, the tail gas of motorcycle emission enters into binodal catalyst 10 and carries out catalytic reaction, due to air-flow path surface and urceolus 102 centerline parallel of carrier 101, the flowing of tail gas is linearly flowed, tail gas stream is fast through the flow velocity of carrier 101, the time of tail gas and catalyst exposure is short, tail gas low conversion rate; And use this binodal catalyst 10 not have spaced linkage structure, second section catalyst temperature drift, catalyst works at higher temperature, working life, catalyzer that is partially short, carrier 101 surface failed to make full use of.
Therefore, must have the catalyst of a new structure to improve these defects, this case produces thus.
Model utility content
The purpose of this utility model is to provide a kind of motorcycle exhaust pipe binodal catalyst structure, to improve tail gas conversion ratio, increases the service life.
In order to reach above-mentioned purpose, solution of the present utility model is:
Motorcycle exhaust pipe binodal catalyst structure, be made up of urceolus and carrier, blank pipe is provided with between two urceolus joints of binodal catalyst, the two ends of blank pipe adopt welding procedure to be connected with two urceolus, blank pipe makes to form interval between two urceolus, fill carrier in urceolus, carrier has catalyzer, carrier is combined by two S type foil.
Two S type foil surface of described carrier and urceolus center line shape are at angle.
After adopting said structure, when the utility model uses, the tail gas of motorcycle emission is by two S type carrier, the flowing of tail gas is made to become helical flow from streamlined flow, greatly improve the contact probability of tail gas and catalyst catalyzer, gas simultaneously through first segment catalyst catalyzed conversion enters one section of blank pipe, tail gas and O again
2further mixing and after giving out a part of heat, make the tail gas (CO, HC, Nax) that do not transform completely again with O
2mixing, better transformed through second section catalyst again, gas gives out a part of heat at blank pipe place, the operating temperature of second section catalyst is controlled, extend the working life of catalyst, thus on the basis not increasing catalyst cost, improve the transformation efficiency of exhaust emissions, meet the legislation discharge requirement of state three, state four.
Accompanying drawing explanation
Fig. 1 is the sectional view of traditional binodal catalyst;
Fig. 2 is the cross-sectional view of traditional binodal catalyst;
Fig. 3 is the structural representation that the utility model binodal catalyst applies in motorcycle exhaust pipe;
Fig. 4 is the sectional view of the utility model binodal catalyst;
Fig. 5 is the cross-sectional view of the utility model binodal catalyst.
Label declaration
Binodal catalyst 10, carrier 101, urceolus 102, conduit 20, tail pipe 30, carrier 1, urceolus 2, blank pipe 3.
Embodiment
As shown in Figure 4 and Figure 5, the motor cycle outlet pipe binodal catalyst structure that the utility model discloses, is made up of urceolus 2 and carrier 1.The utility model to apply in motorcycle exhaust pipe as shown in Figure 3, be made up of parts such as conduit 20, binodal catalyst 10 and tail pipes 30.Binodal catalyst 10 is assembled in outlet pipe.The tail gas of motorcycle emission enters in outlet pipe, is discharged into air through binodal catalyst 10, conduit 20 from tail pipe 30 again.
Improvement of the present utility model is:
Blank pipe 3 is provided with between two urceolus 2 joints of binodal catalyst 10, the two ends of blank pipe 3 adopt welding procedure to be connected with two urceolus 2, blank pipe 3 makes to form interval between two urceolus 2, the heat of part is distributed every space here, the operating temperature of second section catalyst is well controlled, and extends the working life of catalyst.
Carrier 1 is filled in urceolus 2, carrier 1 has catalyzer, carrier 1 is combined by two S type foil, the flowing of tail gas is made to become helical flow from streamlined flow, greatly improve the contact probability of tail gas and catalyst catalyzer, improve the transformation efficiency of exhaust emissions, simultaneously, catalyst urceolus is not made an amendment, can Change cost be reduced.
In order to improve the contact probability of tail gas and catalyst catalyzer further, the utility model by the two S type foils of carrier 1 surface and urceolus 2 center line shape at angle.
The advantage with high catalytic rate, long wearing, low cost of the present utility model.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present utility model.
Claims (2)
1. motorcycle exhaust pipe binodal catalyst structure, be made up of urceolus and carrier, carrier is filled in urceolus, carrier has catalyzer, it is characterized in that: between two urceolus joints of binodal catalyst, be provided with blank pipe, the two ends of blank pipe adopt welding procedure to be connected with two urceolus, and blank pipe makes to form interval between two urceolus, and carrier is combined by two S type foil.
2. motorcycle exhaust pipe binodal catalyst structure as claimed in claim 1, is characterized in that: two S type foil surface of carrier and urceolus center line shape are at angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420480376.2U CN204099007U (en) | 2014-08-25 | 2014-08-25 | Motorcycle exhaust pipe binodal catalyst structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420480376.2U CN204099007U (en) | 2014-08-25 | 2014-08-25 | Motorcycle exhaust pipe binodal catalyst structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204099007U true CN204099007U (en) | 2015-01-14 |
Family
ID=52267443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420480376.2U Active CN204099007U (en) | 2014-08-25 | 2014-08-25 | Motorcycle exhaust pipe binodal catalyst structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204099007U (en) |
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2014
- 2014-08-25 CN CN201420480376.2U patent/CN204099007U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |