CN201306227Y - Fuel evaporative pollutant control system for motorcycle - Google Patents
Fuel evaporative pollutant control system for motorcycle Download PDFInfo
- Publication number
- CN201306227Y CN201306227Y CNU2008201004940U CN200820100494U CN201306227Y CN 201306227 Y CN201306227 Y CN 201306227Y CN U2008201004940 U CNU2008201004940 U CN U2008201004940U CN 200820100494 U CN200820100494 U CN 200820100494U CN 201306227 Y CN201306227 Y CN 201306227Y
- Authority
- CN
- China
- Prior art keywords
- pipeline
- carburetor
- canister
- motorcycle
- desorption
- 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
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 29
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 19
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 19
- 238000003795 desorption Methods 0.000 claims abstract description 35
- 239000003502 gasoline Substances 0.000 claims abstract description 9
- 238000001704 evaporation Methods 0.000 claims description 15
- 230000008020 evaporation Effects 0.000 claims description 15
- 238000001179 sorption measurement Methods 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 4
- 229910052799 carbon Inorganic materials 0.000 abstract 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 9
- 239000003921 oil Substances 0.000 description 7
- 239000002828 fuel tank Substances 0.000 description 4
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 206010022000 influenza Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 239000010761 intermediate fuel oil Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
A fuel evaporative pollutant control system for a motorcycle comprises a carbon canister and a gasoline trip valve; wherein, a vapour absorption port of the carbon canister is connected with an oil tank breather through a first pipeline; the gasoline trip valve is assembled on the first pipeline; a pressure control valve of the carbon canister is connected with an engine intake tube through a second pipeline; and a vapour desorption port of the carbon canister is communicated with an air duct of a carburetor through a third pipeline. After the technical scheme of the utility model is adopted, not only the emission of fuel evaporative pollutant can be decreased, but also the affection of fuel evaporative pollutant on emission under operating condition can be reduced, and thereby, the tail gas emission of the motorcycle can be more environment-friendly.
Description
Technical field
The utility model belongs to automotive emission control technique field, specifically, relates to the fuel evaporation pollutant control system on the motorcycle.
Background technique
Because ventilation and hot soak loss between daytime; used in fuel oil system of motor-driven vehicle can produce fuel evaporation pollutant, and fuel evaporation pollutant is a hydrocarbon, can not directly be discharged in the atmosphere; be protection environment, energy saving, China formulates the NBS that the motorcycle fuel evaporative pollutant emission limit is arranged.
Existing motorcycle is to install canister additional to come fuel evaporation pollutant is adsorbed in oil-fired system, canister is connected between fuel tank and the empty filter, the fuel evaporation pollutant of discharging from fuel tank enters canister absorption, enter sky filter and air mixing then, form mixed gas and enter Carburetor, enter engine combustion by suction tude again.Fuel vapor participates in burning behind the desorption, can influence the operating mode discharging, and the operating mode discharge amount of CO can increase in general, find also in the test that motorcycle adopts this structure since with the desorption point selection on empty filter, the not enough phenomenon of negative pressure can be occurred, effective desorption of canister intermediate fuel oil steam can not be guaranteed.
The model utility content
The purpose of this utility model provides a kind of desorption quality that can improve fuel evaporation pollutant, thereby effectively reduces the fuel evaporation pollutant control system of motorcycle of discharge vaporization and operating mode discharging.
For achieving the above object, the fuel evaporation pollutant control system of motorcycle that the utility model provides, include canister and gasoline cut-off valve, the steam adsorption port of canister links to each other with oil tank breather by first pipeline, the gasoline cut-off valve is installed on first pipeline, the pressure controlled valve of canister links to each other with engine air inlet tube by second pipeline, and the steam desorption mouth of canister is connected with the air flue of Carburetor by the 3rd pipeline.
The utility model will be connected with the air flue of Carburetor with the 3rd pipeline that the steam desorption mouth of canister is connected, improved the negative pressure in the 3rd pipeline, to satisfy the desorption pressure requirement of steam in the canister, guarantee that steam obtains abundant desorption in the canister, reduce discharge vaporization, and raising reduces the influence to the operating mode discharging from the fuel vapor quality of canister desorption.
The tie point of above-mentioned the 3rd pipeline and Carburetor air flue is between Carburetor aditus laryngis and mixed gas outlet, and the negative pressure that makes full use of the generation of this section air flue improves the desorption pressure of steam in the canister.
Further, above-mentioned the 3rd pipeline is communicated with the Carburetor air flue by the desorption pipe on the Carburetor, and desorption pipe is installed in a side of idle adjusting screw on the Carburetor, and the internal diameter of this desorption pipe is 2.1 ± 0.1 millimeters.Evidence, the high energy of negative pressure reaches two kPas herein, has fully satisfied the desorption pressure requirement of steam in the canister; The desorption pipe internal diameter is defined as 2.1 ± 0.1 millimeters, can controls fuel vapor quality, thereby reduce the influence of fuel vapor the operating mode discharging from the canister desorption.
After adopting technical solutions of the utility model, not only reduced the discharging of fuel evaporation pollutant, and reduced the influence of fuel evaporation pollutant, thereby made the exhaust emissions of motorcycle reach environmental protection requirement more the operating mode discharging.
Description of drawings
Fig. 1 is the overall pie graph of the utility model control system;
Fig. 2 is the outline drawing of Carburetor in the utility model;
Among the figure: 1. fuel tank; 2. oil tank breather; 3. gasoline cut-off valve; 4. steam adsorption port; 5. steam desorption mouth 5; 6. canister; 8. oil pipe; 9. motor; 10. engine air inlet tube; 11. Carburetor; 12. empty filter; 13. first pipeline; 14. second pipeline; 15. the 3rd pipeline; 16. desorption pipe; 17. idle adjusting screw.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, it is the canister of 200ml that canister 7 adopts storage volumes, guarantees that it has sufficient adsorptive power, and normal sorption fuel vapor quality is about 16 grams.The steam adsorption port 4 of canister 7 links to each other with oil tank breather 2 by first pipeline 13, gasoline cut-off valve 3 is installed on first pipeline 13, the pressure controlled valve 6 of canister 7 links to each other with engine air inlet tube 10 by second pipeline 14, and the steam desorption mouth 5 of canister 7 is connected with the air flue of Carburetor 11 by the 3rd pipeline 15.The oil outlet of fuel tank 1 links to each other with Carburetor 11 filler openings by oil pipe 8.The tie point of the 3rd pipeline 15 and Carburetor 11 air flues is between the aditus laryngis and mixed gas outlet of Carburetor 11.First pipeline 13 is also referred to as adsorption tube, and second pipeline 14 is also referred to as the negative pressure pipe, and the 3rd pipeline 15 is also referred to as desorption pipe.
The 3rd pipeline 15 is connected with the air flue of Carburetor 11, can improve the negative pressure of 15 li of the 3rd pipelines, to satisfy the desorption pressure requirement of steam in the canister 7, guarantee that steam obtains abundant desorption in the canister 7, reduce discharge vaporization, and raising reduces the influence to the operating mode discharging from the fuel vapor quality of canister 7 desorptions.
As can be seen from Figure 2: the 3rd pipeline 15 is communicated with Carburetor 11 air flues by the desorption pipe 16 on the Carburetor 11, desorption pipe 16 is installed in a side of idle adjusting screw 17 on the Carburetor 11, distance along Carburetor plunger central direction and idle adjusting screw 17 is 10 millimeters, and the internal diameter of desorption pipe 16 is 2.1 ± 0.1 millimeters.Evidence, the high energy of negative pressure reaches two kPas herein, has fully satisfied the desorption pressure requirement of steam in the canister 7; Desorption pipe 16 internal diameters are defined as 2.1 ± 0.1 millimeters, can control, thereby reduce the influence of fuel vapor the operating mode discharging from the fuel vapor quality of canister 7 desorptions.
Referring to Fig. 1, the fuel vapor of evaporation enters first pipeline 13 by oil tank breather 2 in the closed tank 1, enters the canister 7 from steam adsorption port 4 through gasoline cut-off valve 3 backs to store; When motor 9 operations, produce negative pressure is opened canister 7 by second pipeline 14 pressure controlled valve 6 in the engine air inlet tube 10, steam desorption mouth 5 and three pipeline 15 of fuel vapor by canister 7 that is stored in the canister 7 enters Carburetor 11, and enters motor 9 after the air mixing of coming from empty filter 12 and participates in burning.
Claims (3)
1. fuel evaporation pollutant control system of motorcycle, comprise canister and gasoline cut-off valve, the steam adsorption port of canister links to each other with oil tank breather by first pipeline, the gasoline cut-off valve is installed on first pipeline, the pressure controlled valve of canister links to each other with engine air inlet tube by second pipeline, and it is characterized in that: the steam desorption mouth of described canister is connected with the air flue of Carburetor by the 3rd pipeline.
2. fuel evaporation pollutant control system of motorcycle as claimed in claim 1 is characterized in that: the tie point of described the 3rd pipeline and Carburetor air flue is between Carburetor aditus laryngis and mixed gas outlet.
3. fuel evaporation pollutant control system of motorcycle as claimed in claim 2, it is characterized in that: described the 3rd pipeline is communicated with the Carburetor air flue by the desorption pipe on the Carburetor, desorption pipe is installed in a side of idle adjusting screw on the Carburetor, and the internal diameter of this desorption pipe is 2.1 ± 0.1 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201004940U CN201306227Y (en) | 2008-11-10 | 2008-11-10 | Fuel evaporative pollutant control system for motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201004940U CN201306227Y (en) | 2008-11-10 | 2008-11-10 | Fuel evaporative pollutant control system for motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306227Y true CN201306227Y (en) | 2009-09-09 |
Family
ID=41098693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201004940U Expired - Fee Related CN201306227Y (en) | 2008-11-10 | 2008-11-10 | Fuel evaporative pollutant control system for motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306227Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT522131A1 (en) * | 2018-12-19 | 2020-08-15 | Ktm Ag | Motorbike with swiveling fuel tank |
-
2008
- 2008-11-10 CN CNU2008201004940U patent/CN201306227Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT522131A1 (en) * | 2018-12-19 | 2020-08-15 | Ktm Ag | Motorbike with swiveling fuel tank |
| US11247743B2 (en) | 2018-12-19 | 2022-02-15 | Ktm Ag | Motorcycle with pivotable fuel tank |
| AT522131B1 (en) * | 2018-12-19 | 2023-09-15 | Ktm Ag | Motorcycle with pivoting fuel tank |
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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: 20090909 Termination date: 20121110 |