CN201277117Y - Fuel evaporation and exhaustion control system of motorcycle - Google Patents
Fuel evaporation and exhaustion control system of motorcycle Download PDFInfo
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- CN201277117Y CN201277117Y CNU2008201660812U CN200820166081U CN201277117Y CN 201277117 Y CN201277117 Y CN 201277117Y CN U2008201660812 U CNU2008201660812 U CN U2008201660812U CN 200820166081 U CN200820166081 U CN 200820166081U CN 201277117 Y CN201277117 Y CN 201277117Y
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Abstract
The utility model relates to a fuel evaporation emission control system of a motorcycle, which comprises a fuel box (1), an air filter (3), a carburetor (4), an engine (6) and a corresponding connecting pipeline, and is characterized in that the fuel evaporation control system further comprises a carbon tank (2), the inner portion of the carbon tank is equipped with absorbing materials, the carbon tank (2) is equipped with an air port (22) which is communicated with the atmosphere, the fuel box (1) is connected with an adsorption port (23) of the carbon tank (2) through a first pipeline (1a), an air inlet of the air filter (3) is connected with a desorption port (25) of the carbon tank (2) through a second pipeline (2a), the air inlet of the carburetor (4) is connected with an air outlet of the air filter (3) through a third pipeline (3a), the air inlet of the engine (6) is connected with the air outlet of the carburetor (4) through a fourth pipeline (4a), and an exhaust emission pipeline (7a) of the engine is equipped with catalyst (8) which is used to purify tail gas. Compared with the prior art, the fuel evaporation emission control system of the motorcycle has the advantages of effectively reducing the emission of exhaust pollutants.
Description
Technical field
The utility model relates to a kind of fuel vaporization and discharge control system that is applied to motorcycle, relates in particular to the motorcycle fuel vaporization and discharge control system that a kind of application has Carburetor.
Background technique
Motorcycle integrates quick, economic dispatch advantage as the modern traffic tool, and the production and the life that give people have brought many facilities, have been subjected to the common people's welcome more and more.Along with the development of China's motorcycle industry and improving constantly of people's economic life level, the recoverable amount sustainable growth of China's motorcycle, the recoverable amount of China's motorcycle has broken through 10,000 ten thousand.
Motorcycle brings huge environment of also depending on for existence to the mankind simultaneously easily to cause quite serious pollution in the life of giving the people, each country and organize and all put into effect relevant laws and regulations and limit motorcycle emission pollution, the motorcycle emission pollutant mainly contains CO, NOx and HC, and these harmful gases discharge by three kinds of approach: the one, pass through outlet pipe; The 2nd, pass through crankcase; The 3rd, fuel vaporization.Outlet pipe---is taked catalytic converter, crankcase---and is taked forced ventilation (PCV) device, fuel vaporization---adopt the evaporative fuel emission control gear.
China mainly is that discharging is controlled to motorcycle exhaust in the past, following exhaust contaminant standard GB14621-93, GB/T 5466-93, GB/T 14622-93, GB 14622-2000, GB 18176-2000 been have successively have been developed and implemented, motorcycle and the trail bike exhaust contaminant standard of implementing is now: GB14621-2002, GB14622-2002, GB18176-2002, next stage will be implemented GB14621-2007, GB14622-2007, GB 18176-2007.Simultaneously also will take control, " motorcycle and trail bike fuel evaporation pollutant emission limit set and the method for measurement " that comes into effect on July 1st, 2008 etc. to motorcycle fuel vaporization.
At present, solve that evaporative fuel emission control is the most effective, the most common, what can satisfy Abgasgesetz is the active carbon pot process.
The model utility content
Technical problem to be solved in the utility model is that a kind of motorcycle fuel vaporization and discharge control system that can effectively reduce the exhaust pollutant discharging and can satisfy Europe II standard is provided at the above-mentioned state of the art.
Second technical problem to be solved in the utility model is can effectively reduce the exhaust pollutant discharging and can satisfy EUROIII Emission Standard and the motorcycle fuel vaporization and discharge control system of " motorcycle and trail bike fuel evaporation pollutant emission limit set and method of measurement " standard.
The utility model solves the technological scheme that above-mentioned first technical problem adopted: a kind of motorcycle fuel vaporization and discharge control system, comprise fuel tank, air filter, Carburetor, motor and corresponding connecting pipeline, it is characterized in that this control system comprises that also an inside is equipped with the canister of sorbing material, this canister has the ventilating hole that communicates with atmosphere
Aforesaid fuel tank connects the adsorption port of aforementioned canister by first pipeline, and the suction port of aforesaid air filter is connected by second pipeline with the desorption mouth of aforementioned canister, aforesaid carburetor air mouth is connected by the 3rd pipeline with the air outlet of aforementioned air filter, the suction port of aforementioned motor is connected by the 4th pipeline with the air outlet of aforementioned Carburetor, and has the catalyzer that is used for cleaning of off-gas on the exhaust emissions pipeline of aforementioned motor.
Further, described canister also has a Current limited Control chamber, and described the 4th pipeline and described Current limited Control chamber are connected with a motor and are in the 5th pipeline that can impel the Current limited Control chamber to open under the starting state, and the pressure of canister is on the 4th pipeline.
The utility model solves above-mentioned second technological scheme that technical problem adopted: a kind of motorcycle fuel vaporization and discharge control system, comprise fuel tank, air filter, Carburetor, motor and corresponding connecting pipeline, it is characterized in that this control system comprises that also an inside is equipped with the canister of sorbing material, this canister has the ventilating hole that communicates with atmosphere
Aforesaid fuel tank connects the adsorption port of aforementioned canister by first pipeline, and the suction port of aforesaid air filter is connected by second pipeline with the desorption mouth of aforementioned canister, aforesaid carburetor air mouth is connected by the 3rd pipeline with the air outlet of aforementioned air filter, the suction port of aforementioned motor is connected by the 4th pipeline with the air outlet of aforementioned Carburetor, and has the catalyzer that is used for cleaning of off-gas on the exhaust emissions pipeline of aforementioned motor.
Described second pipeline is provided with one makes oily vapours enter the current limit control valve of air filter with progressively increasing, and this structure can reduce the influence to exhaust emissions.
Perhaps, described canister has one can make oily vapours enter the current limit control valve of air filter with progressively increasing, be that canister and current limit control valve are made of one, this current limit control valve communicates with the desorption mouth of described canister, and this structure can have bigger influence to exhaust emissions.
Or be the solenoid valve that described second pipeline is provided with an energy control gaseous flow, this structure can effectively be controlled the influence to exhaust emissions.
Working principle is: utilize the adsorptive power adsorbed gasoline steam that riddles the activated carbon granule in the canister; Carry out desorption through the control of current limit control valve or solenoid valve under certain conditions, the gasoline that is adsorbed on above the active carbon is sent into engine combustion, make it to be fully used, the active carbon in the canister recovers adsorptive power thereupon.It mainly acts on is exactly that the gasoline vapour that prevents evaporation in the fuel tank enters atmosphere and air is polluted.Burn owing to will enter engine fuel system behind the stored oil vapor desorption of canister in the fuel vaporization control system, this will unavoidably change the fuel feeding proportions of ingredients, thereby influence the engine emission pollutant.So also will consider to control well the discharging of motor pollutant in the fuel vaporization controlling well.
As preferred structure: described current limit control valve comprises
Valve casing has the air inlet port and the port of giving vent to anger;
Valve body has inlet hole, and this inlet hole is communicated with the air inlet port of aforementioned valve casing;
Spool is located in the space that give vent to anger port and the valve body of aforementioned valve casing form; And
Pressure spring acts on aforementioned spool and forces aforementioned spool to seal the inlet hole of aforementioned valve body all the time,
Under the state that aforementioned valve casing inlet end implication flows to, aforesaid spool can overcome pressure spring elastic force and the air inlet port of aforementioned valve casing and the port of giving vent to anger are communicated under the pressure of air-flow.
Further, described valve casing comprises first valve casing with air inlet port and second valve casing with the port of giving vent to anger, and described valve body two ends are tightly connected combination and form an integral body with aforesaid first valve casing and second valve casing respectively.
Further, described current limit control valve comprises that also one has liner plate, this liner plate middle part has through hole, described spool comprises the obstruction portion that is used to seal described valve body inlet hole and forms with the elongated portion that aforementioned obstruction portion is connected as a single entity, aforesaid elongated portion is arranged in the through hole of aforementioned liner plate, and described pressure spring is sheathed on aforesaid elongated portion, and the two ends of described pressure spring offset with the aforementioned liner plate and the second valve casing inwall respectively.
Compared with prior art, advantage of the present utility model is: effectively reduce the exhaust pollutant discharging, can also be by setting up current limit control valve or solenoid valve, catalyzer just has time enough to enter the efficient catalytic state, rationally controlled the desorption of canister steam in oil, reduced influence, satisfied the motorcycle exhaust discharging and meet Europe III emission standard, adopted electromagnetic valve accurate simultaneously the motorcycle exhaust discharging; The current limit control valve of peculiar structure can have been controlled the desorption of canister steam in oil effectively, and simple and reasonable, and manufacture cost is lower again.
Description of drawings
Fig. 1 is embodiment's 1 structural representation.
Fig. 2 is embodiment's 2 structural representations.
Fig. 3 is the stereogram of current limit control valve.
Fig. 4 is the exploded view of current limit control valve.
Phase diagram when Fig. 5 passes through for the current limit control valve airless.
Fig. 6 has the out-of-date phase diagram of air communication for current limit control valve.
Fig. 7 is embodiment's 3 structural representations.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Embodiment 1: with reference to shown in Figure 1, the effect of fuel vaporization and discharge control system is with steam introducing burning and prevents to evaporate in the atmosphere.Motorcycle fuel vaporization and discharge control system in the present embodiment comprises fuel tank 1, air filter 3, Carburetor 4, canister 2 motors 6 and corresponding connecting pipeline,
The first pipeline 1a is provided with anti-toppling valve 7.Active carbon is equipped with in canister 2 inside, and this canister 2 has ventilating hole 22 and the water outlet 21 that communicates with atmosphere.Canister 2 also has a Current limited Control chamber 24, the four pipeline 4a and Current limited Control chamber 24 and is connected with a motor and is in the 5th pipeline 5a that can impel the Current limited Control chamber to open under the starting state.Also be connected with bent axle flue gas leading 6a between motor 6 and the air filter 3.
Embodiment 2: with reference to shown in Figure 2, the motorcycle fuel vaporization and discharge control system in the present embodiment mainly is the improvement at embodiment 1.
Because the active carbon in the canister 2 has good absorption and desorption performance, motor 6 has begun desorption when starting among the embodiment 1, and as long as motor 6 is being worked, active carbon is just always at desorption.According to measuring and calculating, 50% oil vapor can be in preceding 5 minutes desorption, will make oil vapor enriching in the initial stage motorcycle oil supply system of motor 6 cold start-ups like this, and catalyzer 8 purifications this moment do not begin to enter working state as yet, thereby influence the discharging of motorcycle, so must be controlled to the desorption of canister 2 steam in oil, make canister 2 steam in oil evenly enter the motorcycle oil supply system stage by stage, reduce influence as much as possible, could satisfy Europe III emission standard and " motorcycle and trail bike fuel evaporation pollutant emission limit set and method of measurement " standard motorcycle emission.
Motorcycle fuel vaporization and discharge control system in the present embodiment comprises fuel tank 1, air filter 3, Carburetor 4, canister 2 motors 6 and corresponding connecting pipeline.
The first pipeline 1a is provided with anti-toppling valve 7.Active carbon is equipped with in canister 2 inside, and this canister 2 has ventilating hole 22 and the water outlet 21 that communicates with atmosphere.Also be connected with bent axle flue gas leading 6a between motor 6 and the air filter 3.The second pipeline 2a is provided with one makes oily vapours enter the current limit control valve 9 of air filter 3 with progressively increasing.
With reference to figure 3 and shown in Figure 4, current limit control valve 9 comprises first valve casing 91, second valve casing 97, valve body 92, spool 93, pressure spring 96 and liner plate 95.
Spool 93 is located in the space that port 97a and the valve body 92 of giving vent to anger of valve casing form, spool 93 comprises the 93a of obstruction portion that is used to seal valve body inlet hole 92a and forms pressure spring 96 with elongated portion 93b that the 93a of obstruction portion is connected as a single entity, act on the inlet hole 92a that aforementioned spool 93 also forces spool 93 closed valves all the time, liner plate 95 middle parts have through hole 95a, periphery has a plurality of vents 94, elongated portion 93b is arranged in the through hole 95a of liner plate, and pressure spring 96 is sheathed on spool elongated portion 93b, and the two ends of pressure spring 96 offset with liner plate 95 and second valve casing, 97 inwalls respectively.
Under the state that valve casing air inlet port 91a air-flow enters, spool 93 can overcome pressure spring 96 elastic force and the air inlet port 91a of first valve casing and the port 97a that gives vent to anger of second valve casing are communicated under the pressure of air-flow.
With reference to shown in Figure 5, phase diagram when passing through for current limit control valve 9 airless.
With reference to shown in Figure 6, for current limit control valve 9 is opened the out-of-date phase diagram of back air communication.
Flame-out when static when motorcycle engine 6, fuel tank 1 is subjected to the influence of variation of ambient temperature, and the oil vapor in it overflows and enters canister 2, is stored in the canister 2 by active carbon adsorption; When motorcycle turns round, gas handling system produces negative pressure will open bent axle forced ventilation (PVC) current limit control valve 9, flow is to raise at leisure up to maximum value, and then to being stored in oil vapors in the canister 2 desorption of limiting the quantity of, make oily vapours can enter motorcycle fuel feeding system equably, like this, catalyzer 8 has time enough to enter the efficient catalytic state, rationally controlled the desorption of canister 2 steam in oil, reduced influence effectively, made to meet relevant emission standards such as Europe III at 2 cold start-up stages of motor and boost phase CO and the discharging of HC compound to motorcycle exhaust discharging.
Certainly, the current limit control valve in the present embodiment can with the canister integrated design, this current limit control valve communicates with the desorption mouth of canister so.
Claims (10)
1, a kind of motorcycle fuel vaporization and discharge control system, comprise fuel tank (1), air filter (3), Carburetor (4), motor (6) and corresponding connecting pipeline, it is characterized in that this control system comprises that also an inside is equipped with the canister of sorbing material (2), this canister (2) has the ventilating hole (22) that communicates with atmosphere
Aforesaid fuel tank (1) connects the adsorption port (23) of aforementioned canister (2) by first pipeline (1a), and the suction port of aforesaid air filter (3) is connected by second pipeline (2a) with the desorption mouth (25) of aforementioned canister (2), aforesaid Carburetor (4) suction port is connected by the 3rd pipeline (3a) with the air outlet of aforementioned air filter (3), the suction port of aforementioned motor (6) is connected by the 4th pipeline (4a) with the air outlet of aforementioned Carburetor (4), and has the catalyzer (8) that is used for cleaning of off-gas on the exhaust emissions pipeline (7a) of aforementioned motor (6).
2, motorcycle fuel vaporization and discharge control system according to claim 1, it is characterized in that described canister (2) also has a Current limited Control chamber (24), described the 4th pipeline (4a) is connected with a motor with described Current limited Control chamber (24) and is in the 5th pipeline (5a) that can impel Current limited Control chamber (24) to open under the starting state.
3, motorcycle fuel vaporization and discharge control system according to claim 1 is characterized in that described second pipeline (2a) is provided with one and makes oily vapours enter the current limit control valve (9) of air filter (3) with progressively increasing.
4, motorcycle fuel vaporization and discharge control system according to claim 1 is characterized in that described canister has one and can make oily vapours enter the current limit control valve of air filter with progressively increasing, and this current limit control valve communicates with the desorption mouth of described canister.
5,, it is characterized in that described current limit control valve (9) comprises according to right 3 or 4 described motorcycle fuel vaporization and discharge control systems
Valve casing has air inlet port (91a) and the port of giving vent to anger (97a);
Valve body (92) has inlet hole (92a), and this inlet hole (92a) is communicated with the air inlet port (91a) of aforementioned valve casing;
Spool (93) is located in the space that the port of giving vent to anger (97a) of aforementioned valve casing and valve body (92) form; And
Pressure spring (96) acts on the inlet hole (92a) that aforementioned spool (93) also forces the aforementioned valve body of aforementioned spool (93) sealing all the time,
Under the state that aforementioned valve casing air inlet port (91a) air-flow enters, aforesaid spool (93) can overcome pressure spring (96) elastic force and the air inlet port (91a) of aforementioned valve casing and the port of giving vent to anger (97a) are communicated under the pressure of air-flow.
6, motorcycle fuel vaporization and discharge control system according to claim 5, it is characterized in that described valve casing comprises first valve casing (91) with air inlet port (91a) and second valve casing (97) with the port of giving vent to anger (97a), described valve body (92) two ends are tightly connected combination and form an integral body with aforesaid first valve casing (91) and second valve casing (97) respectively.
7, motorcycle fuel vaporization and discharge control system according to claim 5, it is characterized in that described current limit control valve (9) comprises that also one has liner plate (95), this liner plate (95) middle part has through hole (95a), described spool (93) comprises the obstruction portion (93a) that is used to seal described valve body inlet hole (92a) and forms with the elongated portion (93b) that aforementioned obstruction portion (93a) is connected as a single entity, aforesaid elongated portion (93b) is arranged in the through hole (95a) of aforementioned liner plate, and described pressure spring (96) is sheathed on aforesaid elongated portion (93b), and the two ends of described pressure spring (96) offset with aforementioned liner plate (95) and second valve casing (97) inwall respectively.
8, motorcycle fuel vaporization and discharge control system according to claim 1 is characterized in that described second pipeline (2a) is provided with the solenoid valve (10) of an energy control gaseous flow.
9,, it is characterized in that described first pipeline (1a) is provided with anti-toppling valve (7) according to claim 3 or 4 or 8 described motorcycle fuel vaporization and discharge control systems.
10,, it is characterized in that also being connected with bent axle flue gas leading (6a) between described motor (6) and the described air filter (3) according to claim 3 or 4 or 8 described motorcycle fuel vaporization and discharge control systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201660812U CN201277117Y (en) | 2008-10-14 | 2008-10-14 | Fuel evaporation and exhaustion control system of motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201660812U CN201277117Y (en) | 2008-10-14 | 2008-10-14 | Fuel evaporation and exhaustion control system of motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277117Y true CN201277117Y (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201660812U Expired - Fee Related CN201277117Y (en) | 2008-10-14 | 2008-10-14 | Fuel evaporation and exhaustion control system of motorcycle |
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| Country | Link |
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| CN (1) | CN201277117Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103620203A (en) * | 2011-06-30 | 2014-03-05 | 株式会社马勒滤清系统 | Adsorbent for canister, and canister |
| CN108730072A (en) * | 2017-04-17 | 2018-11-02 | 丰田自动车株式会社 | Evaporated fuel treating apparatus |
| CN109209685A (en) * | 2018-08-24 | 2019-01-15 | 亚普汽车部件股份有限公司 | A kind of new electronic control high-pressure fuel oil system |
-
2008
- 2008-10-14 CN CNU2008201660812U patent/CN201277117Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103620203A (en) * | 2011-06-30 | 2014-03-05 | 株式会社马勒滤清系统 | Adsorbent for canister, and canister |
| CN108730072A (en) * | 2017-04-17 | 2018-11-02 | 丰田自动车株式会社 | Evaporated fuel treating apparatus |
| CN108730072B (en) * | 2017-04-17 | 2020-03-13 | 丰田自动车株式会社 | Evaporated fuel treatment device |
| CN109209685A (en) * | 2018-08-24 | 2019-01-15 | 亚普汽车部件股份有限公司 | A kind of new electronic control high-pressure fuel oil system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20161014 |