CN201288621Y - Fuel oil evaporation desorption control apparatus - Google Patents
Fuel oil evaporation desorption control apparatus Download PDFInfo
- Publication number
- CN201288621Y CN201288621Y CNU2008201661707U CN200820166170U CN201288621Y CN 201288621 Y CN201288621 Y CN 201288621Y CN U2008201661707 U CNU2008201661707 U CN U2008201661707U CN 200820166170 U CN200820166170 U CN 200820166170U CN 201288621 Y CN201288621 Y CN 201288621Y
- Authority
- CN
- China
- Prior art keywords
- desorption
- canister
- carburetor
- tee union
- mouth
- 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 - Fee Related
Links
- 238000003795 desorption Methods 0.000 title claims abstract description 67
- 230000008020 evaporation Effects 0.000 title claims abstract description 25
- 238000001704 evaporation Methods 0.000 title claims abstract description 25
- 239000000295 fuel oil Substances 0.000 title 1
- 239000000446 fuel Substances 0.000 claims abstract description 23
- 239000002828 fuel tank Substances 0.000 claims abstract description 11
- 239000003502 gasoline Substances 0.000 claims abstract description 6
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052799 carbon Inorganic materials 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- -1 canister Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
The utility model discloses a fuel evaporation desorption control apparatus, comprising a fuel tank (1), a carbon pot (5), an air filter (9), a carburetor (10) and an engine (12). A gasoline evaporation line (3) and a pouring check valve (2) is connected between the fuel tank (1) and the absorption port (4) of the carbon pot (5), one end of the carburetor (10) is connected to the air filter (9), the other end is connected to the engine (12) via an inlet pipe (11), the PCV control valve (6) and desorption port (7) of the carbon pot (5) are connected to the two inlets of a tee union (8), the outlet of the tee union (8) is connected to the desorption port of the carburetor (10). The tee union (8) connected to the carbon pot desorption port (7) is equipped with a limiting hole (13). The utility model solves the problem of excessive emission at idle speed and low speed, has the advantages of simple and reliable structure, sufficient combustion, emission compliance, superior desorption effect, long service life and low cost.
Description
Technical field
The utility model relates to a kind of petrol engine car fuel evaporation desorption control gear, particularly motorcycle fuel evaporation desorption control gear.
Background technique
Progress along with science and technology, also more and more higher to environmental requirement, the country from July 1st, 2008 come into effect " motorcycle pollutant emission limit and method of measurement (operating condition method) " (GB14622-2007), " trail bike pollutant emission and method of measurement (operating condition method) " (GB18176-2007) and " motorcycle and trail bike fuel evaporation pollutant emission limit and method of measurement " (GB20998-2007).The structure of fuel evaporation desorption control gear is as follows at present: the adsorption port of canister evaporates circuit and topples over flow-stop valve by gasoline and is connected with fuel tank, the desorption mouth of canister is connected to the desorption mouth of Carburetor, the PCV control valve of canister is connected on the suction tude between Carburetor and the cylinder head, as shown in Figure 1.This Placement has following drawback: a, because the negative pressure of suction tude is in idling, very high during low speed, the diaphragm of PCV control valve is opened at once after the engine start, canister just begins desorption, oil vapour is inhaled into Carburetor, desorption rate very big (every liter of fresh air can reach 0.5～1g oil vapour) when canister is filled, make air fuel ratio become dense, and this moment, engine temperature was relatively low, cause burning insufficient, simultaneously, catalyst converter does not also reach desirable combustion temperature in the outlet pipe, CO moment concentration ratio in the idle exhaust emission when making motorcycle install the fuel evaporation desorption apparatus additional does not install this additional and installs highly by 50%～100%, can't reach the new emission standard of putting into effect of country at all; B, this Placement because air fuel ratio is dense, cause problems such as easy carbon deposit of motor and burning spark plug when low speed, idling, bigger to the motorcycle performance impact; C, because the negative pressure of the suction tude between Carburetor and the cylinder head is very high, negative pressure higher (reach sometimes-more than the 65KPa) during the high speed oil return is especially damaged the diaphragm of PCV control valve easily.Just begin the problem of desorption in order to solve canister at idling, low speed, the scheme that has increases one-way valve on the basis of above-mentioned fuel evaporation desorption apparatus, one-way valve is installed between Carburetor desorption mouth and the canister desorption mouth, as shown in Figure 2, though this structure has solved idling, low speed just begins the problem of desorption, but because the impedance of one-way valve is bigger, desorption rate but reduces 30%～50% after the working condition tests, still be difficult to emission compliance, and increase that 3 yuan of costs/more than the platform, structure is also more complicated.
Summary of the invention
Idling, low speed burning that existing fuel evaporation desorption apparatus exists are insufficient in order to overcome, CO too high, the easy carbon deposit of discharging and burn that spark plug, diaphragm damage easily, problems such as the desorption effect is bad, cost height during idling low speed, and the purpose of this utility model provides a kind of simple and reasonable, sufficient combustion, emission compliance, long service life, desorption is effective, cost is low fuel evaporation desorption apparatus.
The technological scheme that its technical problem that solves the utility model adopts, it comprises fuel tank, canister, air filter, Carburetor, motor, between the adsorption port of fuel tank and canister, be connected gasoline evaporation circuit and topple over flow-stop valve, Carburetor one end is connected with air filter, the other end links to each other with motor by suction tude, the PCV control valve of described canister and desorption mouth are connected with two imports of tee union, and the outlet of tee union is connected with the desorption mouth of Carburetor.
The tee union that is connected with canister desorption mouth is provided with metering hole.
Perhaps on described canister desorption mouth, be provided with metering hole.
Perhaps between canister desorption mouth and tee union, be provided with metering hole.
After adopting said structure, the PCV control valve of the utility model canister is connected with two imports of tee union with the desorption mouth, the outlet of tee union is connected with the desorption mouth of Carburetor, utilize desorption mouth negative pressure when idling, low speed of Carburetor low, the diaphragm of PCV control valve is not opened, and canister does not carry out desorption; The desorption mouth negative pressure of Carburetor raises when middle and high speed, open the diaphragm of PCV control valve, canister just begins desorption, with on the tee union that canister desorption mouth is connected metering hole is set, pressure reduction is relatively stable before and after can keeping metering hole, diaphragm pressure reduction relatively stable up and down just guarantees that diaphragm is metastable to open that metering hole also can be arranged on the canister desorption mouth or be arranged between canister desorption mouth and the tee union certainly; Just begin desorption thereby efficiently solve existing Placement at idling, low speed, cause air fuel ratio dense, cause that burning is insufficient, the CO concentration over-standard of discharging, also have problems such as cost height, complex structure, desorption effect be bad simultaneously.The utility model the time just begins desorption because canister does not carry out desorption when idling, low speed in middle and high speed, thus make engine air-fuel ratio rationally, sufficient combustion, emission effect be good, motor is not easy carbon deposit and burns spark plug; The utility model is not provided with one-way valve, and therefore impedance is little when desorption, desorption is effective, cost is low; The utility model is because the negative pressure of the desorption mouth of Carburetor is low, less than 3KPa, so the diaphragm of PCV control valve can not damage owing to negative pressure is too high.
Description of drawings
Fig. 1 is the structural representation of existing fuel evaporation desorption apparatus.
Fig. 2 installs the structural representation of one-way valve additional for existing fuel evaporation desorption apparatus.
Fig. 3 is the structural representation of the utility model fuel evaporation desorption apparatus.
Fig. 4 is the structural representation of the utility model tee union.
Embodiment
Fig. 3 and shown in Figure 4, specific embodiments for a kind of fuel evaporation desorption apparatus of the utility model, it comprises fuel tank 1, canister 5, air filter 9, Carburetor 10, motor 12, between the adsorption port 4 of fuel tank 1 and canister 5, be connected gasoline evaporation circuit 3 and topple over flow-stop valve 2, also have atmospheric air port 14 and flow-off 15 on the canister 5, Carburetor 10 1 ends are connected with air filter 9, the other end links to each other with motor 12 by suction tude 11, the PCV control valve 6 of described canister 5 and desorption mouth 7 are connected with two imports of tee union 8, and the outlet of tee union 8 is connected with the desorption mouth of Carburetor 10.The tee union 8 that is connected with canister desorption mouth 7 is provided with metering hole 13, and metering hole 13 also can be arranged on the described canister desorption mouth 7 or be arranged between canister desorption mouth 7 and the tee union 8 certainly.
The utility model can form vapor pressure in fuel tank 1 when the fuel evaporation in the fuel tank 1, under certain pressure, steam along with gasoline evaporation route 3, topple over flow-stop valve 2, enter in the canister 5 from adsorption port 4 and absorbed by active carbon.Diaphragm when desorption mouth negative pressure that motor 12 reaches certain rotating speed, Carburetor 10 rises to certain pressure in the PCV control valve 6 is opened, metering hole 13 effects on the tee union 8 are that utilization front and back pressure reduction makes relatively stable the opening of diaphragm in the PCV control valve 6, desorption mouth 7 negative pressure of canister 5 make extraneous air enter canister 5 from atmospheric air port 14 simultaneously, make the fuel-steam that is adsorbed on the canister 5 interior active carbon carry out desorption, enter motor 9 burnings through Carburetor 10 and suction tude 11 again.
Claims (4)
1, a kind of fuel evaporation desorption control gear, comprise fuel tank (1), canister (5), air filter (9), Carburetor (10), motor (12), between the adsorption port (4) of fuel tank (1) and canister (5), be connected gasoline evaporation circuit (3) and topple over flow-stop valve (2), Carburetor (10) one ends are connected with air filter (9), the other end links to each other with motor (12) by suction tude (11), it is characterized in that: the PCV control valve (6) of described canister (5) and desorption mouth (7) are connected with two imports of tee union (8), and the outlet of tee union (8) is connected with the desorption mouth of Carburetor (10).
2, fuel evaporation desorption control gear according to claim 1 is characterized in that: the tee union (8) that is connected with canister desorption mouth (7) is provided with metering hole (13).
3, fuel evaporation desorption control gear according to claim 1, it is characterized in that: described canister desorption mouth (7) is provided with metering hole (13).
4, fuel evaporation desorption control gear according to claim 1 is characterized in that: be provided with metering hole (13) between canister desorption mouth (7) and tee union (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201661707U CN201288621Y (en) | 2008-10-23 | 2008-10-23 | Fuel oil evaporation desorption control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201661707U CN201288621Y (en) | 2008-10-23 | 2008-10-23 | Fuel oil evaporation desorption control apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201288621Y true CN201288621Y (en) | 2009-08-12 |
Family
ID=40980302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201661707U Expired - Fee Related CN201288621Y (en) | 2008-10-23 | 2008-10-23 | Fuel oil evaporation desorption control apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201288621Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839195A (en) * | 2010-03-09 | 2010-09-22 | 浙江飞亚电子有限公司 | Membrane valve carbon canister |
| CN101886589A (en) * | 2010-06-25 | 2010-11-17 | 力帆实业(集团)股份有限公司 | Motorcycle fuel evaporation control system |
| 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 |
| CN102230431A (en) * | 2011-06-14 | 2011-11-02 | 重庆隆鑫机车有限公司 | Fuel oil evaporation system and motorcycle thereof |
| CN102536527A (en) * | 2011-12-06 | 2012-07-04 | 中国嘉陵工业股份有限公司（集团） | Fuel evaporation control system |
| CN103982336A (en) * | 2013-02-07 | 2014-08-13 | 福特环球技术公司 | Partially sealed fuel oil vapor blowing system |
| WO2015039465A1 (en) * | 2013-09-17 | 2015-03-26 | 北汽福田汽车股份有限公司 | Fuel system for vehicle |
| CN105223100A (en) * | 2015-11-20 | 2016-01-06 | 柳州舜泽尔汽车零部件有限公司 | A kind of automobile canister aeration resistance pick-up unit and detection method thereof |
| CN111622827A (en) * | 2020-06-05 | 2020-09-04 | 中国第一汽车股份有限公司 | Gasoline particle catcher regenerating unit and vehicle |
| CN113279836A (en) * | 2021-05-14 | 2021-08-20 | 浙江吉利控股集团有限公司 | Engine system and vehicle |
-
2008
- 2008-10-23 CN CNU2008201661707U patent/CN201288621Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839195A (en) * | 2010-03-09 | 2010-09-22 | 浙江飞亚电子有限公司 | Membrane valve carbon canister |
| CN101839195B (en) * | 2010-03-09 | 2013-04-24 | 浙江福爱电子有限公司 | Membrane valve carbon canister |
| CN101886589A (en) * | 2010-06-25 | 2010-11-17 | 力帆实业(集团)股份有限公司 | Motorcycle fuel evaporation control system |
| 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 |
| CN102230431A (en) * | 2011-06-14 | 2011-11-02 | 重庆隆鑫机车有限公司 | Fuel oil evaporation system and motorcycle thereof |
| CN102536527A (en) * | 2011-12-06 | 2012-07-04 | 中国嘉陵工业股份有限公司（集团） | Fuel evaporation control system |
| CN103982336B (en) * | 2013-02-07 | 2018-04-20 | 福特环球技术公司 | The fuel vapor purge system of part sealing |
| CN103982336A (en) * | 2013-02-07 | 2014-08-13 | 福特环球技术公司 | Partially sealed fuel oil vapor blowing system |
| WO2015039465A1 (en) * | 2013-09-17 | 2015-03-26 | 北汽福田汽车股份有限公司 | Fuel system for vehicle |
| CN104454254B (en) * | 2013-09-17 | 2017-10-10 | 北汽福田汽车股份有限公司 | fuel system for vehicle |
| CN105223100A (en) * | 2015-11-20 | 2016-01-06 | 柳州舜泽尔汽车零部件有限公司 | A kind of automobile canister aeration resistance pick-up unit and detection method thereof |
| CN105223100B (en) * | 2015-11-20 | 2018-03-02 | 柳州舜泽尔汽车零部件有限公司 | A kind of automobile canister aeration resistance detection means and its detection method |
| CN111622827A (en) * | 2020-06-05 | 2020-09-04 | 中国第一汽车股份有限公司 | Gasoline particle catcher regenerating unit and vehicle |
| CN113279836A (en) * | 2021-05-14 | 2021-08-20 | 浙江吉利控股集团有限公司 | Engine system and vehicle |
| CN113279836B (en) * | 2021-05-14 | 2022-09-27 | 浙江吉利控股集团有限公司 | An engine system and a vehicle |
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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: 20090812 Termination date: 20151023 |
|
| EXPY | Termination of patent right or utility model |