CN201198797Y - Fuel evaporation control device of motorcycle - Google Patents
Fuel evaporation control device of motorcycle Download PDFInfo
- Publication number
- CN201198797Y CN201198797Y CNU2008200352119U CN200820035211U CN201198797Y CN 201198797 Y CN201198797 Y CN 201198797Y CN U2008200352119 U CNU2008200352119 U CN U2008200352119U CN 200820035211 U CN200820035211 U CN 200820035211U CN 201198797 Y CN201198797 Y CN 201198797Y
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- valve
- canister
- control valve
- atmosphere
- fuel
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- Expired - Fee Related
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- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
The utility model discloses a fuel evaporation control device for a motorcycle, which comprises a pressure valve, a carbon canister and a purification control valve, wherein one end of the valve capable of bidirectional conduction is connected with a ventilation nozzle on a fuel tank filler, and the other end is connected with the purification control valve through a main control pipe; the main control pipe between the pressure valve and the purification control valve is further provided with three branches, wherein a first branch is connected with the carbon canister, a second branch is connected with the float chamber oil discharge nozzle of a carburetor, and a third branch is connected with an atmosphere ventilation nozzle of the carburetor. The carbon canister is connected with the air outlet pipe of an air filter through a fourth branch, and the carbon canister and the purification control valve are respectively communicated with the atmosphere through the pipe. By adding the corresponding control device in an oil supply system and reasonably connecting the oil supply pipeline, the utility model can not only ensure the smooth oil supply of the oil channel, but also control the evaporation amount of the fuel to the atmosphere, thus meeting the requirements of environment protection.
Description
Technical field
The utility model relates to the fuel control unit on a kind of motorcycle, specifically is a kind of motorcycle fuel evaporation control gear.
Background technique
The fuel oil supply system of existing motorcycle directly communicates with ambient atmosphere, as long as under fuel tank has oil condition, fuel oil always can be evaporated in the atmosphere gradually and go, and causes certain environmental pollution.Constantly perfect along with the enhancing of people's environmental consciousness and environmental legislation, motorcycle industry requires the steam output of oil supply system intermediate fuel oil is carried out strict control, therefore, must in the motorcycle oil supply system, increase the control corresponding device, with the steam output of control fuel oil.
The model utility content
The purpose of this utility model is by increasing control gear in the fuel oil supply system of motorcycle, can guarantee that the fuel feeding of oil circuit is unobstructed, can control the steam output of fuel evaporation in the atmosphere again.
Motorcycle fuel evaporation control gear described in the utility model, it comprises pressure valve, canister, PCV Purge Control Valve, described pressure valve one end that can two-way admittance connects the ventilation mouth at fuel tank filler place, the other end connects PCV Purge Control Valve by main control pipeline, on the main control pipeline between pressure valve and the PCV Purge Control Valve, also be provided with three branch roads, first branch road connects canister, the float chamber that second branch road is connected to Carburetor mouth of draining the oil, the 3rd branch road connects the atmosphere ventilation mouth of Carburetor, canister is connected by the steam outlet pipe of the 4th branch road and air-strainer, and canister and PCV Purge Control Valve are communicated with atmosphere respectively by pipeline again.Throttle valve also is housed on main control pipeline.
Working principle:
During engine operation, engine air inlet tube produces negative pressure, fuel pump work, and fuel oil is fed to Carburetor; PCV Purge Control Valve places an order to conducting at suction function, and air enters main control pipeline by PCV Purge Control Valve, has guaranteed that the pressure in the evaporation pilot line (being heavy line part among Fig. 1) is identical with external atmosphere pressure.At this moment, if produce very small negative pressure, pressure valve guarantees that promptly by main control pipeline conducting in fuel tank the pressure in the fuel tank is identical with external atmosphere pressure in the fuel tank, and the fuel oil in the fuel tank enters fuel pump smoothly, guarantees the motor proper functioning.The oil gas that adsorbs in the canister is drawn into air-strainer through the 4th arm and enters engine combustion once more simultaneously.
When motor quit work, engine air inlet tube did not have negative pressure and produces, and PCV Purge Control Valve is not worked, and the evaporation pilot line can not communicate with atmosphere.At this moment, if fuel tank intermediate fuel oil generation evaporating pressure raises, pressure valve promptly by fuel tank to the main control pipeline conducting, oil gas enters canister and is absorbed.The oil gas that evaporates in the element such as air-strainer, Carburetor also can enter canister and be absorbed.
The utility model can guarantee that by to increasing the control corresponding device in the oil supply system and oil feed line rationally being connected the fuel feeding of oil circuit is unobstructed, can control the steam output of fuel evaporation in the atmosphere again, to reach environmental requirement.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, the dotted line pipeline is the fuel delivery oil circuit, and the fine line pipeline transmits pipeline for the motor negative pressure, and the heavy line pipeline is the fuel evaporation pilot line.
The function of major control element among the figure:
Pressure valve: have under the situation of pressure reduction conducting (conducting is two-way) automatically at two ends.
PCV Purge Control Valve: exist under the situation of negative pressure, can unidirectional conducting.
Canister: absorbing and filtering oil gas.
Throttle valve: control gaseous flow.
Motorcycle fuel evaporation control gear of the present utility model mainly comprises pressure valve 1, canister 2, PCV Purge Control Valve 3, pressure valve 1 can two-way admittance, the one end connects the ventilation mouth at fuel tank filler place, the other end connects PCV Purge Control Valve 3 by main control pipeline 4, on the main control pipeline 4 between pressure valve 1 and the PCV Purge Control Valve 3, also be provided with three branch roads, the joint of each branch road connects by three-way pipe, wherein first branch road 5 connects canister 2, the float chamber that second branch road 6 is connected to Carburetor 8 mouth of draining the oil, the 3rd branch road 7 connects the atmosphere ventilation mouth of Carburetor 8, and throttle valve 11 is housed on main control pipeline 4.Canister 2 is connected by the steam outlet pipe of the 4th branch road 9 and air-strainer 10, and canister 2 and PCV Purge Control Valve 3 are communicated with atmosphere respectively by pipeline again.
Claims (2)
1. motorcycle fuel evaporation control gear, it is characterized in that: it comprises pressure valve (1), canister (2), PCV Purge Control Valve (3), described pressure valve (1) one end that can two-way admittance connects the ventilation mouth at fuel tank filler place, the other end connects PCV Purge Control Valve (3) by main control pipeline (4), on the main control pipeline (4) between pressure valve (1) and the PCV Purge Control Valve (3), also be provided with three branch roads, first branch road (5) connects canister (2), the float chamber that second branch road (6) connects Carburetor (8) mouth of draining the oil, the 3rd branch road (7) connects the atmosphere ventilation mouth of Carburetor (8), canister (2) is connected by the steam outlet pipe of the 4th branch road (9) and air-strainer (10), and canister (2) and PCV Purge Control Valve (3) are communicated with atmosphere respectively by pipeline again.
2. motorcycle fuel evaporation control gear according to claim 1 is characterized in that: throttle valve (11) is housed on main control pipeline (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200352119U CN201198797Y (en) | 2008-04-28 | 2008-04-28 | Fuel evaporation control device of motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200352119U CN201198797Y (en) | 2008-04-28 | 2008-04-28 | Fuel evaporation control device of motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201198797Y true CN201198797Y (en) | 2009-02-25 |
Family
ID=40449953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200352119U Expired - Fee Related CN201198797Y (en) | 2008-04-28 | 2008-04-28 | Fuel evaporation control device of motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201198797Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102605A (en) * | 2011-01-11 | 2011-06-22 | 重庆隆鑫机车有限公司 | Motorcycle fuel evaporation structure assembly and motorcycle thereof |
| CN103161617A (en) * | 2011-12-15 | 2013-06-19 | 北汽福田汽车股份有限公司 | Fuel evaporation control method of car, fuel evaporation control system of car and car |
| CN103527353A (en) * | 2012-07-06 | 2014-01-22 | 重庆车辆检测研究院有限公司 | Method for controlling motorcycle emission carbon tank desorption timing |
-
2008
- 2008-04-28 CN CNU2008200352119U patent/CN201198797Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102605A (en) * | 2011-01-11 | 2011-06-22 | 重庆隆鑫机车有限公司 | Motorcycle fuel evaporation structure assembly and motorcycle thereof |
| CN102102605B (en) * | 2011-01-11 | 2013-04-10 | 重庆隆鑫机车有限公司 | Motorcycle fuel evaporation structure assembly and motorcycle thereof |
| CN103161617A (en) * | 2011-12-15 | 2013-06-19 | 北汽福田汽车股份有限公司 | Fuel evaporation control method of car, fuel evaporation control system of car and car |
| CN103527353A (en) * | 2012-07-06 | 2014-01-22 | 重庆车辆检测研究院有限公司 | Method for controlling motorcycle emission carbon tank desorption timing |
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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: 20090225 Termination date: 20110428 |