CN201884151U - Collection device for vapor in motorcycle fuel tank - Google Patents
Collection device for vapor in motorcycle fuel tank Download PDFInfo
- Publication number
- CN201884151U CN201884151U CN2010206616993U CN201020661699U CN201884151U CN 201884151 U CN201884151 U CN 201884151U CN 2010206616993 U CN2010206616993 U CN 2010206616993U CN 201020661699 U CN201020661699 U CN 201020661699U CN 201884151 U CN201884151 U CN 201884151U
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- CN
- China
- Prior art keywords
- fuel tank
- collection tube
- fuel
- cotton
- resistance body
- 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 - Lifetime
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Abstract
The utility model discloses a collection device for vapor in a motorcycle fuel tank, which comprises a fuel tank (1) and a collection tube (2). A flocculent fuel stopper (3) is fixed to the inner top wall of the fuel tank (1), the upper end of the collection tube (2) extends out of the bottom of the flocculent fuel stopper (3), an upper port of the collection tube (2) is positioned in the flocculent fuel stopper (3), and a gap is reserved between an upper port of the collection tube (2) and the inner top wall of the fuel tank (1). The collection device is capable of preventing fuel from entering the collection tube so that pipeline blockage of a fuel vapor absorption system is avoided, has the advantages of ingenious concept, simple structure, easiness in modification, low modification cost and the like, and is applicable to various two-wheeled or three-wheeled motorcycles.
Description
Technical field
The utility model belongs to technical field of motorcycles, specifically, and the particularly collecting device of steam in the motorcycle tank.
Background technique
For the pollution of control motorcycle pollutant emission to environment, improve ambient air quality, two-wheeled and motor tricycle III stage criterion have proposed new requirement to the discharging of two-wheeled or motor tricycle operating condition method exhaust contaminant.In order to satisfy state's III standard, the producer that has sets up the oil vapor adsorption system on motorcycle, this system is made of collection tube, anti-roll valve, adsorption tube, charcoal jar, desorption pipe and throttle valve body, as shown in Figure 4, the upper end of collection tube 2 is by tank cap lock 4 location, stretch out outside the fuel tank 1 lower end of collection tube 2, and be connected with the import of anti-roll valve 9, one of the outlet of this anti-roll valve and adsorption tube is connected, the other end of adsorption tube is connected the import of charcoal jar, and the outlet of charcoal jar is joined by desorption pipe and throttle valve body.Collection tube, anti-roll valve, adsorption tube, charcoal jar, desorption pipe and throttle valve body are formed the pipeline that communicates with the fuel tank inner chamber, and extraneous on the one hand atmosphere is communicated with fuel tank by charcoal jar, adsorption tube and collection tube, can realize the function of trim tank external and internal pressure; On the other hand, the oil vapor in the fuel tank enters the charcoal jar, enters in the throttle valve body after being absorbed by the charcoal jar and utilizes.Though above-mentioned adsorption system has reached certain preventing polluting effect, but still there is following deficiency:
1, anti-roll valve is in the outside of fuel tank, though can prevent to agitate the fuel oil that is splashed into enters in the charcoal jar, but fuel tank squint or when toppling over, part fuel oil can enter in the collection tube through the import of collection tube, even fuel tank recovers ortho states, still have fuel oil in the collection tube, can cause pipeline blockage like this, make the disabler of adsorbed oil steam on the one hand; On the other hand, can in fuel tank, forming negative pressure, cause the fuel tank can not be to the motor normal fuel injection.
2, the outer anti-roll valve of fuel tank needs independent processing and fabricating, and needs to be equipped with accessory such as anchor ear, has increased the cost of production of motorcycle.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of fuel oil that can effectively prevent to enter the interior steam collecting device of motorcycle tank of collection tube.
The technical solution of the utility model is as follows: steam collecting device in a kind of motorcycle tank, comprise fuel tank, collection tube and cotton-shaped oil resistance body, on the inner roof wall of described fuel tank, be fixed with cotton-shaped oil resistance body, the upper end of described collection tube is stretched into from the bottom of cotton-shaped oil resistance body, the upper end-hole of this collection tube is positioned at cotton-shaped oil resistance body, and has the gap between the inner roof wall of the upper end-hole of collection tube and fuel tank.
Adopt above technological scheme, cotton-shaped oil resistance body has the effect of ventilation oil resistance, and fuel-steam can free enter in the collection tube by cotton-shaped oil resistance body, and fuel tank squint or topple over the fuel oil that jolts and adsorbed by cotton-shaped oil resistance body can not enter in the collection tube.That is: fuel oil rushes to the fuel tank inner roof wall when fuel tank jolts, and this moment, cotton-shaped oil resistance body absorbed this part fuel oil that has agitated, and had prevented that fuel oil from entering the inner space of cotton-shaped oil resistance body.A fuel oil part that absorbs is because the effect drippage of self gravitation is got back in the fuel tank, and another part evaporates into oil vapor and enters in the cotton-shaped oil resistance body, is finally adsorbed by the charcoal jar by collection tube.This shows that the utility model can prevent effectively that fuel oil from entering in the collection tube, avoided the pipeline blockage of oil vapor adsorption system on the one hand, on the other hand, can cancel the anti-roll valve in the preceding pipeline of charcoal jar, both simplify pipeline, help line arrangement, effectively reduce cost of production again.
Described cotton-shaped oil resistance body is a umbrella shape, and back-off is fixed in the inner roof wall of fuel tank, and so not only processing and fabricating is easy, and the fixing of installation is good, and the inside of cotton-shaped oil resistance body has ventilation space, can guarantee that oil vapor enters the unobstructed property in the collection tube.
Draw materials for convenience, reduce production costs, described cotton-shaped oil resistance body is made by sponge.
Described cotton-shaped oil resistance body is entwined by wire.Cotton-shaped oil resistance body adopts the number of metal silk to make by rule or irregular canoe, and the slit between each wire forms and is similar to labyrinth structure, is guaranteeing the freely through while of oil vapor, has further improved the effect of absorption fuel oil.
Beneficial effect: the utility model can prevent effectively that fuel oil from entering in the collection tube, avoided the pipeline blockage of oil vapor adsorption system, have be skillfully constructed, simple in structure, transform easily, characteristics such as reforming cost is low, can on various two-wheeleds or motor tricycle, use.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is the structural representation of oil vapor adsorption system.
Fig. 4 is the structural representation of background technique.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Embodiment 1
As shown in Figure 1 and Figure 2, present embodiment is made of fuel tank 1, collection tube 2 and cotton-shaped oil resistance body 3, and wherein fuel tank 1 adopts public structure on two-wheeled or the motor tricycle, does not do at this and gives unnecessary details.Be provided with cotton-shaped oil resistance body 3 near the position of tank cap lock 4 on the inner roof wall of described fuel tank 1, this cotton-shaped oil resistance body 3 is made by sponge, is umbrella shape, and back-off is fixed in the inner roof wall of fuel tank 1, and the inner roof wall of the open-mouth end of cotton-shaped oil resistance body 3 and fuel tank 1 is fitted fully.Described collection tube 2 is positioned at fuel tank 1, is approximately " L " shape or other shape that is fit to.The upper end of collection tube 2 is passed the bottom of cotton-shaped oil resistance body 3 from the bottom up, and extend in the cotton-shaped oil resistance body 3, has the gap between the inner roof wall of the upper end-hole of this collection tube 2 and fuel tank 1, and the size in gap is determined according to actual needs.Described collection tube 2 is a metal tube, can adopt lower end welding, middle mode to be fixed in the fuel tank 1 with the link press span welding, perhaps adopt lower end welding, top to adopt the mode of non-tight welding to be fixed in the fuel tank 1, ventilation space is left on the top of collection tube 2 all the time.
From Fig. 3 and as can be known in conjunction with Fig. 1, Fig. 2, one of the lower end of collection tube 2 and adsorption tube 5 is connected, the other end of this adsorption tube 5 passes from the bottom or the side of fuel tank 1, and is connected the import of charcoal jar 6, and the outlet of charcoal jar 6 is joined by desorption pipe 7 and throttle valve body 8.Because cotton-shaped oil resistance body 3 is made by sponge, can stop that the fuel oil that jolts in the fuel tank 1 enters in cotton-shaped oil resistance body 3 and the collection tube 2, and the oil vapor that the fuel oil volatilization produces can enter in the collection tube 2 by cotton-shaped oil resistance body 3 smoothly, and finally the oil vapor adsorption system of being formed by collection tube 2, adsorption tube 5, charcoal jar 6, desorption pipe 7 and throttle valve body 8 absorbs.The working principle of described oil vapor adsorption system is same as the prior art, does not do at this and gives unnecessary details.
Embodiment 2
With reference to Fig. 1, Fig. 2, Fig. 3, in the present embodiment, cotton-shaped oil resistance body 3 is entwined by wire, and all the other structures of present embodiment are identical with embodiment 1, do not do at this and give unnecessary details.Cotton-shaped oil resistance body 3 adopts the number of metal silk to make by rule or irregular canoe, slit between each wire forms and is similar to labyrinth structure, guaranteeing the freely through while of oil vapor, can adsorb the fuel oil that has agitated in the fuel tank, prevent that fuel oil from entering in the collection tube 2.
Although below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic rather than determinate; those of ordinary skill in the art is under enlightenment of the present utility model; under the prerequisite of the utility model aim and claim; can make multiple similar expression; be connected with adsorption tube again after passing fuel tank such as lower end collection tube; perhaps change the material of cotton-shaped oil resistance body; perhaps cotton-shaped oil resistance body is changed to bowl-type; other shapes that are fit to such as hollow hemisphere shape etc., such conversion all falls within the protection domain of the present utility model.
Claims (4)
1. steam collecting device in the motorcycle tank, comprise fuel tank (1) and collection tube (2), it is characterized in that: on the inner roof wall of described fuel tank (1), be fixed with cotton-shaped oil resistance body (3), the upper end of described collection tube (2) is stretched into from the bottom of cotton-shaped oil resistance body (3), the upper end-hole of this collection tube (2) is positioned at cotton-shaped oil resistance body (3), and has the gap between the inner roof wall of the upper end-hole of collection tube (2) and fuel tank (1).
2. steam collecting device in the motorcycle tank according to claim 1 is characterized in that: described cotton-shaped oil resistance body (3) is umbrella shape, and back-off is fixed in the inner roof wall of fuel tank (1).
3. steam collecting device in the motorcycle tank according to claim 1 and 2, it is characterized in that: described cotton-shaped oil resistance body (3) is made by sponge.
4. steam collecting device in the motorcycle tank according to claim 1 and 2, it is characterized in that: described cotton-shaped oil resistance body (3) is entwined by wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206616993U CN201884151U (en) | 2010-12-16 | 2010-12-16 | Collection device for vapor in motorcycle fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206616993U CN201884151U (en) | 2010-12-16 | 2010-12-16 | Collection device for vapor in motorcycle fuel tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884151U true CN201884151U (en) | 2011-06-29 |
Family
ID=44181690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206616993U Expired - Lifetime CN201884151U (en) | 2010-12-16 | 2010-12-16 | Collection device for vapor in motorcycle fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011660A (en) * | 2010-12-16 | 2011-04-13 | 力帆实业(集团)股份有限公司 | Device for collecting steam in oil tank of motorcar |
-
2010
- 2010-12-16 CN CN2010206616993U patent/CN201884151U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011660A (en) * | 2010-12-16 | 2011-04-13 | 力帆实业(集团)股份有限公司 | Device for collecting steam in oil tank of motorcar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |