CN201521367U - Fuel oil evaporation control device of novel motorcycle integrated with air filter - Google Patents
Fuel oil evaporation control device of novel motorcycle integrated with air filter Download PDFInfo
- Publication number
- CN201521367U CN201521367U CN2009201713373U CN200920171337U CN201521367U CN 201521367 U CN201521367 U CN 201521367U CN 2009201713373 U CN2009201713373 U CN 2009201713373U CN 200920171337 U CN200920171337 U CN 200920171337U CN 201521367 U CN201521367 U CN 201521367U
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- China
- Prior art keywords
- canister
- desorption
- carburetor
- fuel oil
- evaporation control
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Abstract
A fuel oil evaporation control device of a novel motorcycle integrated with an air filter simplifies a carbon canister structure, the desorption control for the carbon canister is accurately realized by the carburetor plunger lift range, and the discharge matching requirements of the engine's idle speed, no desorption in low speed, desorption in high-middle speed are easy to realize, the carbon canister and pipeline thereof are assembled with the air filter in a built-in or outlay manner in order to realize the reasonable installation and layout of the fuel oil evaporation device on the motorcycle. The carbon canister is assembled with the air filter through a mouth of air, which can purify air entering into the carbon canister and avoid being blocked by dust. The fuel oil evaporation control device of the novel motorcycle integrated with the air filter reduces the cost of the original fuel oil evaporation device.
Description
Technical field
The utility model relates to the motorcycle emission-reduction technology, particularly a kind of motorcycle fuel evaporation control gear.
Background technique
Fuel evaporation laws and regulations requirement motorcycle increases the fuel evaporation control gear, and its main body is with the carrier of canister as fuel-steam absorption, desorption.Current motorcycle fuel evaporation control technique is transplanted from automobile and is come, though comparative maturity, for motorcycle, its desorption control gear complexity, many, the difficult wiring of pilot line, cost is also higher; Because existing motorcycle structure is compact usually, the space that fuel evaporation device and pipeline are installed is limited, is difficult for realizing rationally installing, and all there are inconvenience in motorcycle manufacturing enterprise and Consumer.
Complicated in the canister structure, cost is higher is vacuum desorption control valve structure.Vacuum desorption control valve (pcv) plays the switch valve effect to canister, and the effect of its control desorption flow is difficult for realizing not desorption of engine idle, low speed, the discharging coupling requirement of high speed desorption.
The model utility content
For overcoming above deficiency, the motorcycle fuel evaporation control gear that the utility model provides a kind of canister that simplifies the structure and by the accurate realization of Carburetor plunger aperture the canister desorption controlled.
The utility model motorcycle fuel evaporation control gear, connect to form by canister, Carburetor, fuel tank and pipeline, wherein: establish a half dividing plate in the described canister, carbon granules fills up the dividing plate both sides and exceeds dividing plate, canister top is provided with the oil gas adsorption port that connects Carburetor and fuel tank atmospheric equilibrium mouth, and the bottom is respectively equipped with desorption mouth and the ventilating hole that is connected atmosphere in the dividing plate both sides, and Carburetor is provided with throttle bore, connect a throttle valve on it, the desorption mouth on the canister connects throttle valve by pipeline.
The utility model motorcycle fuel evaporation control gear, wherein: described throttle bore is located at Carburetor plunger and the Carburetor body face place that is slidingly matched.
The utility model motorcycle fuel evaporation control gear, wherein: described canister is integrated in a part of air-strainer, and the ventilating hole of canister communicates with the filtering cavity of air-strainer.
The utility model motorcycle fuel evaporation control gear, simple in structure, be easy to realize not desorption of engine idle, low speed, the discharging coupling requirement of high speed desorption; Canister and pipeline thereof are integrated by the mode and the empty filter of built-in or outer embedding, realize the reasonable installation of fuel evaporation device on motorcycle, have simplified the pipeline wiring; The logical atmosphere mouth of pipe of canister and empty filter are integrated, can purify the air that enters canister, avoid canister to be stopped up by dust; This device reduces original fuel evaporation installation cost.
Description of drawings
Fig. 1 is the utility model motorcycle fuel evaporation control gear schematic representation;
Gas stream when Fig. 2 is the absorption of the utility model motorcycle usefulness fuel evaporation control gear canister is to schematic representation;
Air flow schematic representation when Fig. 3 is the utility model motorcycle usefulness fuel evaporation control gear canister desorption;
Fig. 4 is that the utility model motorcycle is partly transformed schematic representation with fuel evaporation control gear Carburetor;
Schematic representation when Fig. 5 is the rise of the utility model motorcycle usefulness fuel evaporation control gear Carburetor plunger;
Fig. 6 is the utility model motorcycle fuel evaporation control gear and empty filter integrated morphology side view;
Fig. 7 is the utility model motorcycle fuel evaporation control gear and empty filter integrated morphology plan view.
Embodiment
For further setting forth the utility model motorcycle fuel evaporation control gear, do more detailed explanation below in conjunction with implementing legend.
Fig. 1 is the utility model motorcycle fuel evaporation control gear schematic representation, and it mainly is made up of canister, Carburetor, empty filter three part technological schemes:
1, the improvement of canister structure:
Technical solutions of the utility model are taked the canister of structure shown in Figure 2, both can save the desorption control valve structure of existing canister, can play the due function of canister again.Establish a half dividing plate 6 in the canister 4, carbon granules 5 fills up dividing plate 6 both sides and exceeds dividing plate 6, carbon canister 4 tops are provided with the oil gas adsorption port 7 that connects Carburetor and fuel tank atmospheric equilibrium mouth, and the bottom is respectively equipped with desorption mouth 9 and the ventilating hole 8 that is connected atmosphere (seeing Fig. 2, Fig. 3) in dividing plate 6 both sides
When motor is in off working state, oil gas from carburetor bowl and fuel tank atmospheric equilibrium mouth enters the canister adsorption port, the oil gas that flows into canister dividing plate 6 left sides is communicated with ambient atmosphere after adsorbing, the oil gas that enters canister dividing plate 6 right sides is communicated with (see figure 2) by Carburetor, empty filter with ambient atmosphere after absorption; When engine operation, this moment, canister desorption mouth 9 places produced the desorption negative pressure, and extraneous fresh air enters dividing plate 6 left sides by vent under the effect of negative pressure, and absorption oil gas is laggard goes into the oil gas on dividing plate 6 right sides and right side in the lump through desorption mouth 9 outflow (see figure 3)s.The canister of this structure can be realized absorption, desorption oil gas function equally without the desorption control valve.
2, the Carburetor ram lift realizes the desorption control to canister:
For three dischargings of motorcycle state, desorption oil gas is very big to the influence of discharging.It is generally acknowledged, do not wish when idling, low speed that canister has the oil gas desorption, in order to avoid to discharging, engine combustion stability being impacted; In middle and high when speed,, the motor gas consumption was big, and this moment, desorption oil gas was less to engine emission, performance impact.Automobile often by the dutycycle of ECU adjustment desorption solenoid valve, realize the control of desorption flow size, and the motorcycle canister adopts vacuum desorption control valve (pcv) to control the desorption flow usually with canister.Under different rotating speeds, desorption control valve opening degree and frequency change with the intake pipe negative pressure fluctuation, cause the desorption flow of canister also to change thereupon.This dependence vacuum desorption control valve is controlled the method for desorption flow need do a large amount of match tests with complete machine, and is difficult to accomplish not desorption of idling, low speed, the desorption effect of high speed desorption.
But technical solutions of the utility model are utilized not desorption of mechanical control method simple realization canister low speed, the technical requirements of high speed desorption: Carburetor plunger 1 and the body face place that is slidingly matched is provided with throttle bore 2, connect a throttle valve 3 on it, throttle valve 3 connects desorption mouth 8 (seeing Fig. 4, Fig. 5) by pipeline.
When motor is in idling, low speed, plunger 1 is sealed throttle bore 2, though the matching gap of throttle bore 2 places this moment by plunger 1 is communicated with aditus laryngis, because throttle bore 2 place's air velocitys are very low, the desorption negative pressure that produces is very little, and canister oil gas does not produce the desorption (see figure 4); Plunger 1 is up, engine speed improves, when plunger 1 rises to certain altitude, motor is in the high speed state, throttle bore 2 is no longer by 1 shutoff of plunger, and at this moment, Carburetor aditus laryngis place air velocity increases, the desorption negative pressure that throttle bore 2 places produce also increases, and canister oil gas produces the desorption (see figure 5).We just can accomplish with comparalive ease to the desorption control on opportunity like this, and the big I of desorption flow is controlled by adjusting throttle valve 3 pore sizes.
3, fuel evaporation device and empty filter is integrated:
Existing motorcycle structure is generally compact, and straight beam car especially can be limited for the space that canister is installed, and pipeline is many, and the layout difficulty influences attractive in appearancely, for manufacturing enterprise and user inconvenience is arranged all.Motorcycle fuel evaporation device, state's three tapping equipments focus mostly near Carburetor, empty filter, and empty filter is close to Carburetor, and itself occupy the larger volume space.
According to above-mentioned simplification to the canister structure, canister structure 4 of the built-in or outer embedding of technical solutions of the utility model certain part on empty filter 10 (is seen Fig. 6, Fig. 7), add carbon granules, connect corresponding pipeline, wherein: the ventilating hole 8 of canister 4 communicates with the filtering cavity of air-strainer 10, adsorption port 7 and Carburetor 11, the atmospheric equilibrium mouth of fuel tank 12 is communicated with, desorption mouth 9 is communicated with the throttle valve 3 of Carburetor 11, like this, integrated empty filter just can be when realizing the air filtering effect, play canister absorption, the function of desorption oil gas, so integrated empty filter will be more rationally attractive in appearance on mounting arrangement, also big reduction can be arranged on cost.
Former fuel evaporation control technique does not consider that the dust in the atmosphere enters canister by the canister atmosphere entry, reduces the carbon granules activity even stops up the vent problem.Technical solutions of the utility model are integrated by canister and empty filter, and the canister free vent is communicated with empty filter filtering cavity, guarantee to enter the air cleaner of canister.
Because the volume of canister duty filter is less, the empty filter canister of appropriate design integrated morphology can not brought influence to the Performance Match and the noise reduction effect of empty filter.
Pass through the improvement of above technological scheme, make this model utility motorcycle usefulness fuel evaporation control gear, saving cost more succinct, feasible than original scheme.
Claims (3)
1. motorcycle fuel evaporation control gear, by canister (4), Carburetor (11), fuel tank (12) and pipeline (13) connect to form, it is characterized in that: establish a half dividing plate (6) in the described canister (4), carbon granules (5) fills up dividing plate (6) both sides and exceeds dividing plate (6), canister (4) top is provided with the oil gas adsorption port (7) that connects Carburetor (11) and fuel tank (12) atmospheric equilibrium mouth, the bottom is respectively equipped with desorption mouth (9) and the ventilating hole that is connected atmosphere (8) in dividing plate (6) both sides, Carburetor (11) is provided with throttle bore (2), connect a throttle valve (3) on it, the desorption mouth (9) on the canister (4) connects throttle valve (3) by pipeline.
2. motorcycle fuel evaporation control gear according to claim 1 is characterized in that: described throttle bore (2) is located at Carburetor plunger (1) and the Carburetor body face place that is slidingly matched.
3. motorcycle fuel evaporation control gear according to claim 1 is characterized in that: described canister (4) is integrated in a part of air-strainer (10), and the ventilating hole (8) of canister (4) communicates with the filtering cavity of air-strainer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201713373U CN201521367U (en) | 2009-08-14 | 2009-08-14 | Fuel oil evaporation control device of novel motorcycle integrated with air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201713373U CN201521367U (en) | 2009-08-14 | 2009-08-14 | Fuel oil evaporation control device of novel motorcycle integrated with air filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521367U true CN201521367U (en) | 2010-07-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201713373U Expired - Fee Related CN201521367U (en) | 2009-08-14 | 2009-08-14 | Fuel oil evaporation control device of novel motorcycle integrated with air filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521367U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314716A (en) * | 2014-09-01 | 2015-01-28 | 重庆峰瑞塑料制品有限公司 | Novel air filter assembly with carbon tank |
| CN107061062A (en) * | 2017-06-19 | 2017-08-18 | 天津内燃机研究所（天津摩托车技术中心） | Fuel-steam control system and control method |
-
2009
- 2009-08-14 CN CN2009201713373U patent/CN201521367U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314716A (en) * | 2014-09-01 | 2015-01-28 | 重庆峰瑞塑料制品有限公司 | Novel air filter assembly with carbon tank |
| CN107061062A (en) * | 2017-06-19 | 2017-08-18 | 天津内燃机研究所（天津摩托车技术中心） | Fuel-steam control system and control method |
| CN107061062B (en) * | 2017-06-19 | 2019-07-16 | 天津内燃机研究所（天津摩托车技术中心） | Fuel-steam control system and control method |
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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: 20100707 Termination date: 20110814 |