CN202140202U - Oil-gas separator of motorcycle fuel evaporative control system - Google Patents
Oil-gas separator of motorcycle fuel evaporative control system Download PDFInfo
- Publication number
- CN202140202U CN202140202U CN201120172220U CN201120172220U CN202140202U CN 202140202 U CN202140202 U CN 202140202U CN 201120172220 U CN201120172220 U CN 201120172220U CN 201120172220 U CN201120172220 U CN 201120172220U CN 202140202 U CN202140202 U CN 202140202U
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- China
- Prior art keywords
- deaerator
- fuel tank
- tracheae
- oil
- housing
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Abstract
The utility model discloses an oil-gas separator of a motorcycle fuel evaporative control system, which comprises an oil-gas separator shell and a gas pipe and is characterized in that the oil-gas separator shell is hermetically connected to the outer side of the top of an oil tank; an opening communicated with an inner cavity of the oil tank is arranged at the lower end of the oil-gas separator shell; the upper end of the gas pipe is inserted into the oil-gas separator shell through the opening; and a gap is reserved between the gas pipe and the opening. In the utility model, the oil-gas separator is arranged outside the oil tank and can be mounted after being produced independently, so that the complexity of the internal structure and the welding processing difficulty of the oil tank are reduced, and the oil-gas separator is convenient to disassemble and maintain; and meanwhile, the oil-gas separator is positioned on the upper surface of the oil tank, so fuel is more difficult to enter the gas pipe and the effect of increasing the effective volume of the oil tank is also achieved.
Description
Technical field
The utility model relates to the fuel evaporation control system of motorcycle tank, is specifically related to a kind of deaerator of motorcycle fuel evaporation control system.
Background technique
At present; Along with constantly adding of motorcycle emission rules is tight; In the motorcycle tank,, fuel evaporation control system need be set control in order to guarantee the fuel tank normal fuel injection and to prevent that fluid from evaporateing in the atmosphere; The prior fuel oil evaporation control system comprises canister and deaerator that is positioned at fuel tank internal that is positioned at the fuel tank outside, adopts tracheae to link to each other between the two.For the external fuel tank, in order not influence outward appearance, be connected in the tracheae between canister and the deaerator, generally be to be linked in the fuel tank from the fuel tank bottom.Wherein, canister has the adsorption port that links to each other with fuel tank, has desorption mouth that links to each other with Carburetor and the air intlet that links to each other with atmosphere, and absorption prevented that from the fluid molecule that fuel tank volatilizes gaseous state fluid from evaporateing in the atmosphere when canister was used for fuel feeding not; Also be used for simultaneously when fuel feeding, guaranteeing normal sorption, the desorption of fluid and keeping fuel tank internal air pressure balance; Deaerator is used to guarantee that the fluid of gaseous state can arrive canister, avoids the dirty arrival canister of the pleasant pipe of fluid of liquid.
Present deaerator is built in the fuel tank, has following shortcoming:
1, in order not interfere with fuel tank top, the deaerator position is lower, must reduce pasta, just can avoid fuel oil to surpass deaerator and cause the fuel leakage problem, has sacrificed the volume of fuel tank; And must inform that the user must not refuel and surpass indicating graduation, if the user do not note, refuel and surpass specified altitude, can cause the fuel tank dysventilation.
2, pasta is too high or vibrate when excessive, in the rider process, can cause fuel oil to get into interpolation pipe, causes the inefficacy of fuel leakage and canister.
3, fuel tank internal complex structure, welding procedure is complicated
If stopping up appears in 4 deaerators, be not easy maintenance.
The model utility content
Deficiency to above-mentioned existing technology; The utility model technical problem to be solved is how to provide a kind of simple in structure, easily manufactured; Dismantle the deaerator of motorcycle fuel evaporation control system easy to maintenance, make it reach the purpose that promotes the fuel tank actual volume simultaneously.
In order to solve the problems of the technologies described above, adopted following technological scheme in the utility model:
A kind of deaerator of motorcycle fuel evaporation control system; Comprise deaerator housing and tracheae; Its characteristics are that said deaerator housing seal is connected the fuel tank top outer, and deaerator housing lower end has the opening that is communicated with the fuel tank inner chamber; The upper end of said tracheae is inserted in the deaerator housing through opening, leaves the space between tracheae and the opening.
In the present technique scheme, deaerator is arranged on the fuel tank outside, deaerator installs after can making separately again, has reduced fuel tank internal structure complexity and welding processing difficulty, dismantles easy to maintenance; Because deaerator is positioned at the fuel tank upper surface,, also reached the effect that promotes the fuel tank actual volume simultaneously so fuel oil is difficult for getting into tracheae more.
As further optimization, have one in the inner chamber of said deaerator housing inner chamber be divided into up and down two-part dividing plate, on the dividing plate porose make inner chamber up and down two-part be communicated with, said tracheae open upper end is positioned at the dividing plate upper end.After optimizing like this, in the motorcycle driving process, the fuel oil that splashes because of vibration can at first enter into the cavity under the dividing plate, just can get into the cavity on the dividing plate then, forms labyrinth structure, has more effectively stoped liquid fluid to enter in the tracheae.As one-step optimization again, said tracheae open upper end place is connected to the inner chamber roof of deaerator housing, the tracheae open upper end be in upwards have in week one make the inside and outside connection of tracheae breach.Can farthest avoid liquid fluid to enter in the tracheae like this.
In technique scheme; As a kind of optimization that Placement is installed between fuel tank and the deaerator housing; Said deaerator housing lower ending opening place have one be inserted into fuel tank internal convexity; Said raised thread is screwed on the nut of fuel tank internal; Said nut upper surface has a step that stretches out tank surface, and full weld is sealedly and fixedly connected between the step surface of nut and the tank surface, is provided with sealing gasket between the step end face of said deaerator housing and nut and seals.After optimizing like this, sealing effect is better.
In technique scheme; As the another kind optimization that Placement is installed between fuel tank and the deaerator housing; Said deaerator housing lower ending opening place have one be inserted into fuel tank internal convexity; Said raised thread is screwed on the nut of fuel tank internal, adopts spot welding to be fixedly connected between nut and the fuel tank, is provided with sealing gasket between deaerator housing and the fuel tank upper surface and seals.After optimizing like this, connection is more convenient.Simultaneously, nut is connected without full weld with fuel tank, and manufacturability is better.
In sum, the utlity model has following advantage:
1, deaerator is placed on the fuel tank top, can effectively overcome fuel level in tank when higher fuel oil get into interpolation pipe, promptly get into the atmospheric equilibrium passage, avoid the inefficacy of fuel leakage and canister.
2, adopt between deaerator and the fuel tank and be threaded, be convenient to dismounting, maintenance.
3, deaerator places fuel tank outside, has simplified the fuel tank internal structure, and anufacturability is superior to built-in deaerator Oiltank structure.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of the utility model.
Fig. 2 is the structural representation of second kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the structure of the utility model is done further to specify.
Embodiment one, as shown in Figure 1, a kind of deaerator of motorcycle fuel evaporation control system; Comprise deaerator housing 1 and tracheae 2; Wherein, said deaerator housing 1 is sealedly connected on fuel tank 3 top outer, and deaerator housing 1 lower end has the opening that is communicated with fuel tank 3 inner chambers; The upper end of said tracheae 2 is inserted in the deaerator housing 1 through opening, leaves the space between tracheae 2 and the opening.Have one in the inner chamber of said deaerator housing 1 inner chamber is divided into up and down two-part dividing plate 4; On the dividing plate 4 porose make inner chamber up and down two-part be communicated with; Said tracheae 2 open upper end are positioned at dividing plate 4 upper ends, and tracheae 2 is through leaving the gap between the hole on the dividing plate 4 and this hole and the tracheae 2 during practical implementation.Said tracheae 2 open upper end places are connected to the inner chamber roof of deaerator housing 1, tracheae 2 open upper end be in upwards have in week one make tracheae 2 inside and outside connections breach 5.Said deaerator housing 1 lower ending opening place has one and is inserted into the inner convexity 6 of fuel tank 3; Said protruding 6 screw threads are screwed on the nut 7 of fuel tank 3 inside; Said nut 7 upper surfaces have a step that stretches out tank surface; Full weld is sealedly and fixedly connected between the step surface of nut 7 and the tank surface, is provided with sealing gasket 8 between the step end face of said deaerator housing 1 and nut 7 and seals.
Embodiment two, as shown in Figure 2, a kind of deaerator of motorcycle fuel evaporation control system; Comprise deaerator housing 1 and tracheae 2; Wherein, said deaerator housing 1 is sealedly connected on fuel tank 3 top outer, and deaerator housing 1 lower end has the opening that is communicated with fuel tank 3 inner chambers; The upper end of said tracheae 2 is inserted in the deaerator housing 1 through opening, leaves the space between tracheae 2 and the opening.Have one in the inner chamber of said deaerator housing 1 inner chamber be divided into up and down two-part dividing plate 4, on the dividing plate 4 porose make inner chamber up and down two-part be communicated with, said tracheae 2 open upper end are positioned at dividing plate 4 upper ends.Said tracheae 2 open upper end places are connected to the inner chamber roof of deaerator housing 1, tracheae 2 open upper end be in upwards have in week one make tracheae 2 inside and outside connections breach 5.Said deaerator housing 1 lower ending opening place has one and is inserted into the inner convexity 6 of fuel tank 3; Said protruding 6 screw threads are screwed on the nut 7 of fuel tank 3 inside; Adopt spot welding to be fixedly connected between nut 7 and the fuel tank 3, be provided with sealing gasket 8 between deaerator housing 1 and fuel tank 3 upper surfaces and seal.
In addition, during practical implementation, said deaerator housing can be made up of deaerator body and deaerator loam cake, and the deaerator loam cake can adopt bonding way to be connected with the deaerator body.The profile of deaerator body and deaerator loam cake can be done various variations, with fuel tank profile cooperation.Deaerator can adopt plastic materials.Assemble the back: leave certain clearance between deaerator housing lower ending opening and the tracheae, leave certain clearance between the hole of dividing plate and the tracheae, become the atmospheric equilibrium air passageways.
Claims (5)
1. the deaerator of a motorcycle fuel evaporation control system; Comprise deaerator housing and tracheae; It is characterized in that said deaerator housing seal is connected the fuel tank top outer, deaerator housing lower end has the opening that is communicated with the fuel tank inner chamber; The upper end of said tracheae is inserted in the deaerator housing through opening, leaves the space between tracheae and the opening.
2. the deaerator of motorcycle fuel evaporation control system as claimed in claim 1; It is characterized in that; Have one in the inner chamber of said deaerator housing inner chamber is divided into up and down two-part dividing plate; On the dividing plate porose make inner chamber up and down two-part be communicated with, said tracheae open upper end is positioned at the dividing plate upper end.
3. the deaerator of motorcycle fuel evaporation control system as claimed in claim 2; It is characterized in that; Said tracheae open upper end place is connected to the inner chamber roof of deaerator housing, the tracheae open upper end be in upwards have in week one make the inside and outside connection of tracheae breach.
4. like the deaerator of claim 1 or 2 or 3 described motorcycle fuel evaporation control systems; It is characterized in that; Said deaerator housing lower ending opening place have one be inserted into fuel tank internal convexity; Said raised thread is screwed on the nut of fuel tank internal; Said nut upper surface has a step that stretches out tank surface, and full weld is sealedly and fixedly connected between the step surface of nut and the tank surface, is provided with sealing gasket between the step end face of said deaerator housing and nut and seals.
5. like the deaerator of claim 1 or 2 or 3 described motorcycle fuel evaporation control systems; It is characterized in that; Said deaerator housing lower ending opening place have one be inserted into fuel tank internal convexity; Said raised thread is screwed on the nut of fuel tank internal, adopts spot welding to be fixedly connected between nut and the fuel tank, is provided with sealing gasket between deaerator housing and the fuel tank upper surface and seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120172220U CN202140202U (en) | 2011-05-26 | 2011-05-26 | Oil-gas separator of motorcycle fuel evaporative control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120172220U CN202140202U (en) | 2011-05-26 | 2011-05-26 | Oil-gas separator of motorcycle fuel evaporative control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140202U true CN202140202U (en) | 2012-02-08 |
Family
ID=45551262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120172220U Expired - Fee Related CN202140202U (en) | 2011-05-26 | 2011-05-26 | Oil-gas separator of motorcycle fuel evaporative control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032729A (en) * | 2018-01-12 | 2018-05-15 | 江门市大长江集团有限公司 | Gas oil separation structure and the fuel tank equipped with it |
-
2011
- 2011-05-26 CN CN201120172220U patent/CN202140202U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032729A (en) * | 2018-01-12 | 2018-05-15 | 江门市大长江集团有限公司 | Gas oil separation structure and the fuel tank equipped with it |
| CN108032729B (en) * | 2018-01-12 | 2024-09-27 | 江门市大长江集团有限公司 | Oil-gas separation structure and be equipped with its oil tank |
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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 |
Granted publication date: 20120208 Termination date: 20160526 |