CN201771635U - Vapor adsorption system in motor bicycle oil tank - Google Patents

Vapor adsorption system in motor bicycle oil tank Download PDF

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Publication number
CN201771635U
CN201771635U CN2010202446866U CN201020244686U CN201771635U CN 201771635 U CN201771635 U CN 201771635U CN 2010202446866 U CN2010202446866 U CN 2010202446866U CN 201020244686 U CN201020244686 U CN 201020244686U CN 201771635 U CN201771635 U CN 201771635U
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China
Prior art keywords
fuel tank
tank cap
oil tank
joint
oil
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Expired - Lifetime
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CN2010202446866U
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Chinese (zh)
Inventor
黄加仁
秦文
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Lifan Technology Group Co Ltd
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Lifan Industry Group Co Ltd
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Priority to CN2010202446866U priority Critical patent/CN201771635U/en
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Abstract

The utility model discloses a vapor adsorption system in a motor bicycle oil tank, wherein an oil tank cover with an air pressure balance channel is arranged in an oil filling port which is arranged on the top portion of an oil tank, the oil tank cover is provided with an oil tank cover upper shell, an inner component and an oil tank cover lower shell, the inner component is arranged in the oil tank cover lower shell, the bottom portion of the oil tank cover lower shell is provided with an air inlet of the air pressure balance channel, the top portion of the oil tank cover lower shell is provided with a flanging, the oil tank cover upper shell is covered on the flanging of the top portion of the oil tank shell lower shell, an air outlet of the air pressure balance channel is arranged on the top wall of the oil tank cover upper shell, the air outlet is connected with a joint, the joint is connected with an inlet of a carbon tank through an adsorption pipe, and an outlet of the carbon tank is connected with a carburetor through a desorption pipe. The vapor adsorption system can balance internal and external pressure of the oil tank, guarantees the oil tank to supply oil for the carburetor through an oil tank switch, also can adsorb oil vapor, prevents the oil vapor from being discharged into the atmosphere to pollute environment, prevents fuel oil from being wasted, and has the characteristics of being reasonable in design, easy in implement, reliable in performance, low in cost, and strong in popularity and the like.

Description

Motorcycle tank inner vapor adsorption system
Technical field
The utility model belongs to technical field of motorcycles, specifically, and the particularly oily vapours adsorbent equipment on the motorcycle.
Background technique
Motorcycle oil tank lid is installed in the oil filler at fuel tank top, plays sealing oil filler and oil gas collection.As shown in Figure 5, traditional fuel tank cap is made of fuel tank cap upper casing 2, fuel tank cap lower casing 4 and internal component 3 three parts, wherein internal component 3 is installed in the fuel tank cap lower casing 4, the top of fuel tank cap lower casing 4 has flange 4a, the cross section of this flange 4a is " ∩ " shape, described fuel tank cap upper casing 2 spiral-locks are on the flange 4a at fuel tank cap lower casing 4 tops, and the external annulus of all sidewalls of fuel tank cap upper casing 2 and fuel tank cap lower casing " ∩ " shape flange 4a is fitted, and is spacing by the crimping of fuel tank cap upper casing 2 all sidewalls bottoms.For trim tank 1 inside and extraneous pressure, so that the fuel oil energy in the fuel tank enters in the Carburetor by the fuel tap that is arranged on the fuel tank bottom smoothly, fuel tank cap is provided with air pressure balance passage 9, the suction port of this air pressure balance passage 9 is in the bottom surface of fuel tank cap lower casing 4, air outlet 14 is on the internal ring wall of fuel tank cap lower casing " ∩ " shape flange 4a, and near the suction port place anti-roll valve 13 is housed in the air pressure balance passage 9, this anti-roll valve 13 can guarantee that in normal driving process gas is two-way by air pressure balance passage 9, can prevent that when motorcycle tilts or falls down fuel oil from flowing out from air pressure balance passage 9.Because the fuel oil in the fuel tank is volatile, oily vapours can enter the air pressure balance passage under action of pressure, enter the gap of fuel tank cap and oil filler wall from the air outlet 14 of air pressure balance passage, thereby enters atmosphere, not only pollute the environment, but also can cause the fuel oil waste.
Be the pollution of control motorcycle pollutant emission to environment, improve ambient air quality, two-wheeled and motor tricycle 1II stage criterion have proposed new requirement to the discharging of two-wheeled or motor tricycle operating condition method exhaust contaminant, and in this case, above-mentioned fuel tank cap just can not satisfy new requirement.In order to satisfy state III standard, the producer that has sets up the oily vapours adsorbent equipment on motorcycle.As Fig. 6, Fig. 7 and in conjunction with shown in Figure 5, this device is with air outlet 14 shutoff of fuel tank cap air pressure balance passage 9, simultaneously in the suitable local perforate in fuel tank 1 top, this hole is connected by joint with vapourizer tube 16, after the series connection anti-roll valve 15, be connected by the import of adsorption tube 5 with charcoal jar 6, the outlet of charcoal jar 6 is joined by desorption pipe 7 and Carburetor 8.Above structure is done change slightly with the structure of fuel tank cap, make fuel tank cap only play sealing, vapourizer tube 16, anti-roll valve 15, adsorption tube 5, charcoal jar 6, desorption pipe 7 and Carburetor 8 are formed the pipeline that communicates with the fuel tank inner chamber, extraneous on the one hand atmosphere is communicated with fuel tank 1 by charcoal jar 6, anti-roll valve 15 and adsorption tube 5, can realize the function of trim tank external and internal pressure; On the other hand, the oily vapours in the fuel tank 1 enters charcoal jar 6, enters in the Carburetor 8 after being absorbed by charcoal jar 6 and utilizes.Though said apparatus has reached certain preventing polluting effect, but still there is following deficiency:
1, 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.
2, the motorcycle of different automobile types, its Oiltank structure is also had any different, and such scheme is looked for a connection adsorption tube on fuel tank, big to the change of Oiltank structure, and the versatility between the different automobile types Oiltank structure is poor, has increased reforming cost thus.
3, anti-roll valve is in the outside of fuel tank, the position that is connected with fuel tank by adsorption tube is positioned at the peak of fuel tank, though can prevent that fuel oil from agitating is splashed in the vapourizer tube, but motorcycle tilts or when falling down, fuel oil can pour in the adsorption tube before the anti-roll valve, can not flow back to fuel tank, can cause pipeline blockage, 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 by fuel tap to the Carburetor normal fuel injection.
4, fuel tank cap is indiscriminately imitated conventional construction substantially, be difficult to fit fully between all sidewalls of fuel tank cap lower casing " ∩ " shape flange and fuel tank cap upper casing, having small gap produces, oily vapours in the fuel tank is easily by the outside escape of this small gap, still the problem that has the waste of environmental pollution and fuel oil, the requirement that does not reach state III standard.
The model utility content
Technical problem to be solved in the utility model be to provide a kind of reliable performance, with low cost, motorcycle tank inner vapor adsorption system easily is installed.
The technical solution of the utility model is as follows: a kind of motorcycle tank inner vapor adsorption system, comprise fuel tank, fuel tank cap, adsorption tube, the charcoal jar, desorption pipe and Carburetor, the fuel tank cap of band air pressure balance passage is installed in the oil filler at fuel tank top, this fuel tank cap has the fuel tank cap upper casing, internal component and fuel tank cap lower casing, described internal component is contained in the fuel tank cap lower casing, the bottom of fuel tank cap lower casing has the suction port of air pressure balance passage, the top of fuel tank cap lower casing has the flange of cross section for " ∩ " shape, described fuel tank cap upper casing spiral-lock is on the flange at fuel tank cap lower casing top, its key is: the air outlet of described air pressure balance passage is arranged on the roof of fuel tank cap upper casing, joint is equipped with at this place, air outlet, one of described joint and adsorption tube is connected, the import of the other end of adsorption tube and charcoal jar is joined, and the outlet of charcoal jar is connected with Carburetor by desorption pipe.
The utility model utilizes the air pressure balance passage on the existing fuel tank cap dexterously, the air outlet of air pressure balance passage is communicated with by the import of pipeline with the charcoal jar, form current path between fuel tank inner chamber, air pressure balance passage, adsorption tube, charcoal jar, desorption pipe and the Carburetor like this, on the one hand can the inside and outside pressure of trim tank, guarantee fuel tank by fuel tank switch to the Carburetor normal fuel injection; On the other hand, the oily vapours in the fuel tank enters the air pressure balance passage, enters the charcoal jar by the pipeline between air pressure balance passage air outlet and the charcoal jar, enters in the Carburetor after being absorbed by the charcoal jar and utilizes.When motorcycle was normally exercised, the anti-roll valve that carries in the air pressure balance passage allowed gas freely pass through, and plays the effect of equilibrium air pressure; When motorcycle tilts or falls down, anti-roll valve has been sealed air flue, not only stoped fuel oil to enter Carburetor by fuel tap, and can prevent that fuel oil from flowing out from the air pressure balance passage, thereby avoided the pipeline blockage before the charcoal jar, guaranteed the reliable performance of trim tank external and internal pressure and adsorbed oil steam.Simultaneously, carry anti-roll valve in the air pressure balance passage, the anti-roll valve of needn't connecting in addition in the pipeline before the charcoal jar had both been simplified pipeline, helped line arrangement, effectively reduced cost of production again.
Between the inner roof wall of the flange at described fuel tank cap lower casing top and fuel tank cap upper casing, be provided with sealing rubber ring, to avoid oily vapours in the air pressure balance passage to enter small gap between fuel tank cap lower casing " ∩ " shape flange and the fuel tank cap upper casing week sidewall, effectively prevented the oily vapours escape.
In order further to strengthen sealing effect, the end face of described flange is the plane, fits in the bottom surface of this plane and sealing rubber ring, and the inner roof wall of the end face of sealing rubber ring and fuel tank cap upper casing is fitted.
In order to simplify the internal structure of an organization, be convenient to assembling, and help the pipeline connection, and described joint is a right angle type, being linked to each other with crosspiece by perpendicular section forms, the lower end of the perpendicular section of this joint is stretched in the air outlet of fuel tank cap upper casing center of top, passes through arc transition between the upper end of the perpendicular section of joint and the crosspiece.
Central authorities at described fuel tank cap upper casing inner roof wall are welded with lining, the below of this lining is provided with cubic bolt, the upper end of described cubic bolt is stretched in the lining, and be threaded with the lower end of the perpendicular section of joint, and the center hole of cubic bolt communicates with the endoporus of joint, upper end in the perpendicular section of joint has annular groove, in this annular groove shaft block ring is installed, and described shaft block ring is positioned at the top of fuel tank cap upper casing.In the above structure, cubic bolt plays ventilation by its center hole on the one hand, on the other hand; The four directions bolt cooperates with shaft block ring, plays position-limiting action, prevents the relative fuel tank cap upper casing of joint play up and down, to guarantee the reliability in joint installation and the using process.Simultaneously, joint and fuel tank cap upper casing Spielpassung, joint can rotate in a circumferential direction, the assembly direction of joint can be adjusted according to the position and the mounting structure of different automobile types fuel tank like this, the state of having unified fuel tank cap, highly versatile not only, and reduced the production management difficulty.
In order to strengthen sealing, between described lining and joint, be provided with the O RunddichtringO.
The beneficial effects of the utility model are:
1, rationally utilize the structure of existing fuel tank cap, needn't be equipped with accessories such as special anti-roll valve and anchor ear again, effectively reduce the cost of production of motorcycle, the cost of every motorcycle can reduce by five yuan at least.
2, only need fuel tank cap is done change a little, needn't change Oiltank structure, reforming cost is low, and highly versatile all can use on the motorcycle of various different automobile types.
3, can effectively prevent pipeline blockage, the reliable performance of adsorbed oil steam not only, and can guarantee fuel tank by fuel tap to the Carburetor normal fuel injection.
4, fuel tank cap good seal can not cause the oily vapours escape, has avoided the waste of environmental pollution and fuel oil, has satisfied the requirement of state III standard.
Description of drawings
Fig. 1 is embodiment 1 a structural representation.
Fig. 2 is the structural representation of fuel tank cap among the embodiment 1.
Fig. 3 is that the B of Fig. 2 is to view.
Fig. 4 is embodiment 2 a structural representation.
The structural representation of Fig. 5 background technique 1.
Fig. 6 is the structural representation of background technique 2.
Fig. 7 is the structural representation of fuel tank cap among Fig. 6.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Embodiment 1
As Fig. 1, Fig. 2, shown in Figure 3, the utility model is made of fuel tank 1, fuel tank cap, adsorption tube 5, charcoal jar 6, desorption pipe 7, Carburetor 8, joint 11 and sealing rubber ring 12, wherein fuel tank cap is installed in the oil filler at fuel tank 1 top, and this fuel tank cap carries air pressure balance passage 9.Described fuel tank cap is made up of fuel tank cap upper casing 2, internal component 3 and fuel tank cap lower casing 4 three parts, internal component 3 is installed in the fuel tank cap lower casing 4, the bottom of fuel tank cap lower casing 4 has the suction port 10 of air pressure balance passage 9, and near suction port 10 places anti-roll valve 13 is housed in the air pressure balance passage 9.The top of described fuel tank cap lower casing 4 has flange 4a, and the cross section of this flange 4a is flat-top " ∩ " shape.Fuel tank cap upper casing 2 spiral-locks are on the flange 4a at fuel tank cap lower casing 4 tops, and the applying of the external annulus of all sidewalls of fuel tank cap upper casing 2 and fuel tank cap lower casing 4 " ∩ " shape flange 4a, and are spacing by the crimping of fuel tank cap upper casing 2 all sidewalls bottoms.
As can be known from Fig. 2, between the inner roof wall of the flange 4a at fuel tank cap lower casing 4 tops and fuel tank cap upper casing 2, be provided with sealing rubber ring 12, the inner roof wall of the end face of sealing rubber ring 12 and fuel tank cap upper casing 2 is fitted, and fits in the plane on the bottom surface of sealing rubber ring 12 and flange 4a top.Sealing rubber ring 12 plays sealing, prevents to leak gas between fuel tank cap lower casing 4 flange 4a and the fuel tank cap upper casing 2 all sidewalls.
As can be known, the air outlet of air pressure balance passage 9 is arranged at the central authorities of fuel tank cap upper casing 2 roofs from Fig. 1, Fig. 2, and joint 11 is equipped with at this place, air outlet.Except that the air outlet, the set-up mode of air pressure balance passage 9 is identical with background technique 2, does not do at this and gives unnecessary details.Described joint 11 is a right angle type, and being linked to each other with crosspiece by perpendicular section forms, and the lower end of these joint 11 perpendicular sections is stretched in the air outlet at fuel tank cap upper casing 2 tops, and the endoporus of joint 11 is communicated with air pressure balance passage 9.The outer wall of joint 11 perpendicular section lower ends welds mutually with fuel tank cap upper casing 2, the upper end of joint 11 perpendicular sections and an end of crosspiece pass through arc transition, one of the other end of joint 11 crosspieces and adsorption tube 5 is connected, the import of the other end of adsorption tube 5 and charcoal jar 6 is joined, and the outlet of charcoal jar 6 is connected with Carburetor 8 by desorption pipe 7.For preventing that the fuel oil in the Carburetor 8 from flowing back in the charcoal jar 6, charcoal jar 6 itself is provided with an one-way valve, is not provided with in charcoal jar 6 under the situation of one-way valve, and the one-way valve of connecting between charcoal jar 6 and Carburetor 8 gets final product.
The working principle of present embodiment is as follows:
Form current path between fuel tank 1 inner chamber, air pressure balance passage 9, joint 11, adsorption tube 5, charcoal jar 6, desorption pipe 7 and the Carburetor 8, carry air inlet on the charcoal jar 6, on the one hand can the inside and outside pressure of trim tank by the path between fuel tank 1 inner chamber, air pressure balance passage 9, adsorption tube 5 and the charcoal jar 6, the assurance fuel tank by fuel tank switch to the Carburetor normal fuel injection; On the other hand, under the effect of the anti-roll valve 13 that in air pressure balance passage 9, carries, the oily vapours of volatilization can enter air pressure balance passage 9 in the fuel tank 1, even and liquid fuel can not flow out from air pressure balance passage 9 when motorcycle tilts or falls down, oily vapours is successively by air pressure balance passage 9, adsorption tube 5 and charcoal jar 6 like this, after absorbing by charcoal jar 6 at last, enter utilization in the Carburetor 8 by desorption pipe 7.
Embodiment 2
As Fig. 4 and in conjunction with Fig. 1, shown in Figure 3, be welded with lining 17 in the central authorities of fuel tank cap upper casing 2 inner roof walls.Described joint 11 is a right angle type, and being linked to each other with crosspiece by perpendicular section forms, and the air outlet at fuel tank cap upper casing 2 tops is passed in the lower end that this joint 11 erects section, and stretches in the lining 17, and Spielpassung between perpendicular section of joint 11 and the fuel tank cap upper casing 2.Below lining 17, be provided with cubic bolt 18, the step surface at these four directions bolt 18 middle parts is near the bottom surface of lining 17, the upper end of four directions bolt 18 is stretched in the lining 17, and is threaded with the lower end of joint 11 perpendicular sections, and is provided with O RunddichtringO 20 between lining 17 and the joint 11.The center hole of described cubic bolt 18 communicates with the endoporus of joint 11, has annular groove in the upper end of the perpendicular section of joint 11, and shaft block ring 19 is installed in this annular groove, and described shaft block ring 19 is positioned at the top of fuel tank cap upper casing 2, and near the middle part of fuel tank cap upper casing 2 roofs.Shaft block ring 19 and cubic bolt 18 cooperates, and plays position-limiting action, prevents joint 11 relative fuel tank cap upper casings play about in the of 2.All the other structures of present embodiment are identical with embodiment 1, do not do at this and give unnecessary details.
In the present embodiment, form current path between fuel tank 1 inner chamber, air pressure balance passage 9, cubic bolt 18, joint 11, adsorption tube 5, charcoal jar 6, desorption pipe 7 and the Carburetor 8, the working principle of present embodiment is identical with embodiment 1, does not also do at this and gives unnecessary details.

Claims (6)

1. motorcycle tank inner vapor adsorption system, comprise fuel tank (1), fuel tank cap, adsorption tube (5), charcoal jar (6), desorption pipe (7) and Carburetor (8), the fuel tank cap of band air pressure balance passage (9) is installed in the oil filler at fuel tank (1) top, this fuel tank cap has fuel tank cap upper casing (2), internal component (3) and fuel tank cap lower casing (4), described internal component (3) is contained in the fuel tank cap lower casing (4), the bottom of fuel tank cap lower casing (4) has the suction port (10) of air pressure balance passage (9), the top of fuel tank cap lower casing (4) has the flange (4a) of cross section for " ∩ " shape, described fuel tank cap upper casing (2) spiral-lock is on the flange (4a) at fuel tank cap lower casing (4) top, it is characterized in that: the air outlet of described air pressure balance passage (9) is arranged on the roof of fuel tank cap upper casing (2), joint (11) is equipped with at this place, air outlet, one of described joint (11) and adsorption tube (5) is connected, the import of the other end of adsorption tube (5) and charcoal jar (6) is joined, and the outlet of charcoal jar (6) is connected with Carburetor (8) by desorption pipe (7).
2. motorcycle tank inner vapor adsorption system according to claim 1 is characterized in that: be provided with sealing rubber ring (12) between the inner roof wall of the flange (4a) at described fuel tank cap lower casing (4) top and fuel tank cap upper casing (2).
3. motorcycle tank inner vapor adsorption system according to claim 2, it is characterized in that: the end face of described flange (4a) is the plane, fit in the bottom surface of this plane and sealing rubber ring (12), the inner roof wall of the end face of sealing rubber ring (12) and fuel tank cap upper casing (2) is fitted.
4. motorcycle tank inner vapor adsorption system according to claim 1, it is characterized in that: described joint (11) is a right angle type, link to each other with crosspiece by perpendicular section and to form, the lower end of the perpendicular section of this joint (11) is stretched in the air outlet of fuel tank cap upper casing (2) center of top, passes through arc transition between the upper end of the perpendicular section of joint (11) and the crosspiece.
5. motorcycle tank inner vapor adsorption system according to claim 4, it is characterized in that: the central authorities at described fuel tank cap upper casing (2) inner roof wall are welded with lining (17), the below of this lining (17) is provided with cubic bolt (18), the upper end of described cubic bolt (18) is stretched in the lining (17), and be threaded with the lower end of the perpendicular section of joint (11), and the center hole of cubic bolt (18) communicates with the endoporus of joint (11), upper end in the perpendicular section of joint (11) has annular groove, shaft block ring (19) is installed in this annular groove, and described shaft block ring (19) is positioned at the top of fuel tank cap upper casing (2).
6. motorcycle tank inner vapor adsorption system according to claim 5 is characterized in that: be provided with O RunddichtringO (20) between described lining (17) and joint (11).
CN2010202446866U 2010-07-01 2010-07-01 Vapor adsorption system in motor bicycle oil tank Expired - Lifetime CN201771635U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202446866U CN201771635U (en) 2010-07-01 2010-07-01 Vapor adsorption system in motor bicycle oil tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202446866U CN201771635U (en) 2010-07-01 2010-07-01 Vapor adsorption system in motor bicycle oil tank

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CN201771635U true CN201771635U (en) 2011-03-23

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CN2010202446866U Expired - Lifetime CN201771635U (en) 2010-07-01 2010-07-01 Vapor adsorption system in motor bicycle oil tank

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101886590A (en) * 2010-07-01 2010-11-17 力帆实业(集团)股份有限公司 Motorcycle Oil Vapor Adsorption Device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101886590A (en) * 2010-07-01 2010-11-17 力帆实业(集团)股份有限公司 Motorcycle Oil Vapor Adsorption Device
CN101886590B (en) * 2010-07-01 2012-07-04 力帆实业(集团)股份有限公司 Adsorber of fuel vapor of motorcycles

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20110323

Effective date of abandoning: 20120704

AV01 Patent right actively abandoned

Granted publication date: 20110323

Effective date of abandoning: 20120704