EP1688609A1 - Canister for evaporated fuel processing system - Google Patents
Canister for evaporated fuel processing system Download PDFInfo
- Publication number
- EP1688609A1 EP1688609A1 EP05002259A EP05002259A EP1688609A1 EP 1688609 A1 EP1688609 A1 EP 1688609A1 EP 05002259 A EP05002259 A EP 05002259A EP 05002259 A EP05002259 A EP 05002259A EP 1688609 A1 EP1688609 A1 EP 1688609A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- canister
- adsorbing
- plate
- permeable plate
- chamber
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0854—Details of the absorption canister
Definitions
- the invention relates to a canister for evaporated fuel processing system having a housing, inside of which at least one adsorbing chamber, filed with adsorbing agent, is placed, where the inlet adsorbing chamber is connected to a fuel tank and to an intake pipe of an internal combustion engine and the outlet adsorbing chamber comprises an atmospheric port, where in at least one adsorbing chamber across a vapours flow path at least one permeable plate is placed.
- a typical canister of the above kind is disclosed e.g. in the U.S. patent application US 2002/0078931 or European patent application EP 04460022.9 co-owned by the present applicant.
- a canister usually houses a plurality of serially connected adsorbing chambers. The first adsorbing chamber is connected to a fuel tank and to an intake pipe of an internal combustion engine and the last, outlet adsorbing chamber comprises an atmospheric port.
- Loose and unstable adsorbent deposit requires a constant compression not to scatter inside the adsorbing chamber mainly due to vehicle chassis vibrations. For this reason the adsorbent deposit is preliminarily compressed usually by means of compensation springs pressing against appropriate permeable plates.
- the fuel vapours after entering into the canister from the fuel tank, are captured by the adsorbent included in the chambers.
- activated carbon is used as the chamber-filling agent.
- the vapours After the start of the engine the vapours are inducted by negative pressure of the intake pipe and then burnt inside the combustion chamber. Once adsorbing capability of the first chamber is exhausted, the vapours pass through to successive adsorbing chambers, and after exceeding adsorptive capabilities of the outlet chamber they are discharged into the atmosphere.
- the emission of evaporated fuel into the atmosphere must be as low as possible.
- the height of adsorbing chambers should be relatively large, as compared with diameters thereof.
- the outlet adsorbing chamber is frequently divided by a partition, defining the outer and the inner adsorbing layer.
- Such a partition produces an additional restraint against vapour flow, causing redistribution thereof within the entire volume of the adsorbent below the partition.
- partition plate used in known canisters constructions is a separate part of the canisters, it may rotate or displace between the adsorbent layers, during the canister operation, such that in extreme case stops performing its functions.
- the aim of the present invention is to provide a canister for evaporated fuel processing system, having a simple, economic constructions, which would be free of the aforementioned disadvantage, and would feature a greatly reduced number of elements and assembling steps necessary to manufacture thereof.
- a canister where at least one permeable plate has the form of uniform shape element able to displace along the adsorbing chamber and comprises at least two elastic connecting members fixed at one end to the wall of the adsorbing chamber and from the other end entering inside and transforming into the permeable plate.
- the thickness of the connecting members is preferably lower than the working thickness of the plate.
- working thickness denotes the factual thickness of the plate within the adsorbing chamber.
- the housing and said at least one permeable plate are made of plastic in the form of single, integral moulding, where the internal surface of the wall of the housing transforms into the first end of each connecting member, while the second end of each connecting member transforms into the plate, so as the housing, the connecting members and the plate are integral with each other.
- permeable plate in its neutral position is displaced in the direction opposite to the direction of the force of the compensation means.
- the permeable plate preferably comprises a stabilising wall, which may surround the external edge of the plate.
- the plate may be a solid block within the area of each segment defined by the connecting members.
- the permeable plate preferably comprises at least one opening. In some cases the gaps between the connecting members and the plate may be quite sufficient
- the permeable plate according to the invention may be either partition dividing the outlet adsorbing chamber into the internal and the external adsorbing layer or the closing plate of the adsorbing chamber leaning against the compensation means or both.
- the canister 1 comprises a housing 2 closed at the top by the top cover 3 and at the bottom by the bottom cover 4.
- the housing 2 includes two adsorbing chambers filed with activated carbon.
- the inlet adsorbing chamber 5 is connected with a fuel tank 6 by means of an inlet port 7 and with an intake pipe 8 of an internal combustion engine by means of an outlet port 9, and furthermore it is connected with the outlet adsorbing chamber 17 by means of a channel 10.
- Activated carbon 11a filing the inlet adsorbing chamber 5 is held between the covers 12 and 13, being permeable for evaporated fuel, by means of permeable plate 14 and two springs 15 and 16.
- the springs prevents the activated carbon to move inside chamber due to vehicle vibrations, which might lead e.g. to displacement of the covers 12 and 13 and clogging the channels 7 and 9 by the carbon, which in turn would result in canister malfunction.
- the number of compensation springs may vary in dependence of the canister construction.
- the outlet adsorbing chamber 17 is additionally divided into the inner layer 19 and the outer layer 20 by means of a partition plate 18 capable of limited longitudinal displacement.
- the partition 18 restricts the vapour flowing into the outer layer 20 and brings about redistribution thereof within the entire volume of the adsorbent downstream the partition 18, inside the inlet adsorbing chamber 5 and the inner layer 19 of the outlet adsorbing chamber 17.
- Fuel vapours are discharged from the outer layer 20 to the surrounding atmosphere through the atmospheric port 21.
- Activated carbon 11b of the inner adsorbing layer 19 is held between covers 22 and 23, and activated carbon 11c of the outer adsorbing layer 20 is held between covers 24 and 25.
- the covers 23 and 24 lean against the partition, while the compensation spring 26 and the permeable plate 27 ensure appropriate pressure of both activated carbon layers 11b and 11c.
- Filtering covers 12, 13, 22, 23, 24 and 25 are made e.g. from the polyurethane foam and prevent activated carbon to get out of the adsorbing chambers, thus disallowing to clog outlets or openings of the particular partitions.
- Fuel vapours leaving the fuel tank 6 enters the canister 1 through the inlet port 7 and diffuse in the first adsorbing chamber 5, where the neutralization of light hydrocarbons is carried out.
- the fuel vapours, collected in the canister are inducted by negative pressure of the intake pipe 8 and then burnt inside the combustion chamber. If the vapours pressure is high, they flow through the channel 10 to the outlet adsorbing chamber 17, from which they are discharged into the atmosphere through the atmospheric port 21.
- the housing 2 of the canister shown in Fig. 1 has the form of a single element mould, made of glass-fibre reinforced ethylene, along with the permeable plates 14 and 18 of similar construction. Therefore the number of distinct elements of the canister is greatly reduced.
- the dashed line 28 depicts the joining surface of internal cooperating parts of the moulding form (not shown) used for the manufacture of the internal elements of the canister, and in particular the permeable plates 14 and 18.
- the permeable plate 18 is shown in Fig. 2 in the top-down view.
- the plate is an integral part of the housing 2 and has the form of a single element shape comprising three elastic, elongated, substantially parallel to each other, connecting members 29a, 29b and 29c entering inside the surface of the plate 18.
- the internal surface of the wall of the housing 2 transforms into the first end of each connecting member 29, while the second end of each connecting member 29 transforms into the plate 18. Therefore the housing 2, connecting members 29a, 29b and 29c and the plate 18 are integral with each other.
- the dimensions of the connecting members depend on many parameters, in particular on the assumed length of longitudinal displacement of the plate.
- the connecting members practically disallow the plate to rotate between the adsorbent layers.
- the plate is surrounded by the stabilising wall 31.
- the wall defines the contact surface of the plate 18 with the filtering covers 23 and 24 of accordingly the inner 19 and the outer 20 adsorbing layer and ensures appropriate transversal stiffness of the plate 18.
- the plate 18 may be a solid block within the area of each of four segments 30a, 30b, 30c and 30d defined by the connecting members 29a, 29b and 29c.
- the plate 18 comprises the opening 32 for the restricted circulation of vapours between the adsorbing layers, although in some designs the presence of gaps between the connecting members 29 and the plate may be completely sufficient to ensure the flow.
- Drawing Fig. 3 shows the plate 18 of thickness H in its bottom, neutral position. Such a shape of the plate is achieved during the moulding process. As shown, the connecting members 29a, 29b and 29c of thickness h are in neutral, unloaded state.
- Drawing Fig. 4 shows the plate 18 in its top position, which it would have under the action of the force directed upwardly. As shown, the connecting members are deflected enabling the displacement of the plate in the chamber of the distance H-h (cf. Fig. 3).
- the plate should be preferably designed in such a way that under the pressure of the compensation spring it takes one of the intermediate positions between the bottom neutral position (Fig. 3) and the top position (Fig. 4).
- the design of the plate 14 of the inlet adsorbing chamber is similar.
- the plate however comprises a socket for the springs 15 and 16.
- the partition 18a shown in Fig. 5 comprises only two connecting members 29a and 29b. Furthermore it comprises a number of orifices 32.
- the partition 18b of the drawing Fig. 6 is used as a partition for the adsorbing chambers having a substantially circular cross-section. It comprises four members 29a-29d. Additionally, in this embodiment each orifice 32 is surrounded by the stabilising wall 31 performing the similar functions to that shown in Fig. 2.
- the presented embodiments of the canister are quoted exclusively to illustrate operation principle of the appliance and in any case cannot be considered as exhausting solutions to which the invention is limited. It is obvious that the permeable plate of the present invention may be equally used in canisters having only one adsorbing chamber or canisters without the partition dividing the outer adsorbing chamber into separate layers.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
Description
- The invention relates to a canister for evaporated fuel processing system having a housing, inside of which at least one adsorbing chamber, filed with adsorbing agent, is placed, where the inlet adsorbing chamber is connected to a fuel tank and to an intake pipe of an internal combustion engine and the outlet adsorbing chamber comprises an atmospheric port, where in at least one adsorbing chamber across a vapours flow path at least one permeable plate is placed.
- A typical canister of the above kind is disclosed e.g. in the U.S. patent application US 2002/0078931 or European patent application EP 04460022.9 co-owned by the present applicant. A canister usually houses a plurality of serially connected adsorbing chambers. The first adsorbing chamber is connected to a fuel tank and to an intake pipe of an internal combustion engine and the last, outlet adsorbing chamber comprises an atmospheric port.
- Loose and unstable adsorbent deposit requires a constant compression not to scatter inside the adsorbing chamber mainly due to vehicle chassis vibrations. For this reason the adsorbent deposit is preliminarily compressed usually by means of compensation springs pressing against appropriate permeable plates.
- The fuel vapours, after entering into the canister from the fuel tank, are captured by the adsorbent included in the chambers. As a rule, activated carbon is used as the chamber-filling agent. After the start of the engine the vapours are inducted by negative pressure of the intake pipe and then burnt inside the combustion chamber. Once adsorbing capability of the first chamber is exhausted, the vapours pass through to successive adsorbing chambers, and after exceeding adsorptive capabilities of the outlet chamber they are discharged into the atmosphere.
- To ensure that the container meets requirements of related governmental emission standards, e.g the LEV II (Low-Emission Vehicle Program) or the Zero Evap standard, that are in use in the USA, the emission of evaporated fuel into the atmosphere must be as low as possible. For this purpose the height of adsorbing chambers should be relatively large, as compared with diameters thereof. In addition, the outlet adsorbing chamber is frequently divided by a partition, defining the outer and the inner adsorbing layer. Such a partition produces an additional restraint against vapour flow, causing redistribution thereof within the entire volume of the adsorbent below the partition. As partition plate used in known canisters constructions is a separate part of the canisters, it may rotate or displace between the adsorbent layers, during the canister operation, such that in extreme case stops performing its functions.
- The aim of the present invention is to provide a canister for evaporated fuel processing system, having a simple, economic constructions, which would be free of the aforementioned disadvantage, and would feature a greatly reduced number of elements and assembling steps necessary to manufacture thereof.
- According to the present invention there is provided a canister, where at least one permeable plate has the form of uniform shape element able to displace along the adsorbing chamber and comprises at least two elastic connecting members fixed at one end to the wall of the adsorbing chamber and from the other end entering inside and transforming into the permeable plate.
- The thickness of the connecting members is preferably lower than the working thickness of the plate. The term "working thickness", as used herein denotes the factual thickness of the plate within the adsorbing chamber.
- Preferably the housing and said at least one permeable plate are made of plastic in the form of single, integral moulding, where the internal surface of the wall of the housing transforms into the first end of each connecting member, while the second end of each connecting member transforms into the plate, so as the housing, the connecting members and the plate are integral with each other.
- Furthermore advantageously permeable plate in its neutral position is displaced in the direction opposite to the direction of the force of the compensation means.
- The permeable plate preferably comprises a stabilising wall, which may surround the external edge of the plate. Alternatively the plate may be a solid block within the area of each segment defined by the connecting members.
- To enable the vapour circulation the permeable plate preferably comprises at least one opening. In some cases the gaps between the connecting members and the plate may be quite sufficient
- The permeable plate according to the invention may be either partition dividing the outlet adsorbing chamber into the internal and the external adsorbing layer or the closing plate of the adsorbing chamber leaning against the compensation means or both.
- The invention is presented below in exemplary embodiments with reference to the drawings, of which:
- Fig. 1 shows a schematic lateral cross-section of a canister for evaporated fuel processing system according to the present invention, along with typical components of the system,
- Fig. 2 shows a top view of the permeable partition of the outlet adsorbing chamber along the line A-A of Fig. 1,
- Fig. 3 shows a perspective cross-section of the permeable partition of the outlet adsorbing chamber in its neutral bottom position along the line B-B of Fig. 1,
- Fig. 4 corresponds to Fig. 3 but the permeable partition was displaced in its top position,
- Fig. 5 and Fig. 6 show other embodiments of the permeable partition.
- As shown in Fig. 1 the
canister 1 comprises ahousing 2 closed at the top by thetop cover 3 and at the bottom by thebottom cover 4. Thehousing 2 includes two adsorbing chambers filed with activated carbon. - The
inlet adsorbing chamber 5 is connected with a fuel tank 6 by means of aninlet port 7 and with anintake pipe 8 of an internal combustion engine by means of anoutlet port 9, and furthermore it is connected with theoutlet adsorbing chamber 17 by means of achannel 10. - Activated
carbon 11a filing theinlet adsorbing chamber 5 is held between thecovers permeable plate 14 and twosprings channels - The
outlet adsorbing chamber 17 is additionally divided into theinner layer 19 and theouter layer 20 by means of apartition plate 18 capable of limited longitudinal displacement. Thepartition 18 restricts the vapour flowing into theouter layer 20 and brings about redistribution thereof within the entire volume of the adsorbent downstream thepartition 18, inside theinlet adsorbing chamber 5 and theinner layer 19 of theoutlet adsorbing chamber 17. Fuel vapours are discharged from theouter layer 20 to the surrounding atmosphere through theatmospheric port 21. - Activated
carbon 11b of the inner adsorbinglayer 19 is held between covers 22 and 23, and activatedcarbon 11c of the outer adsorbinglayer 20 is held betweencovers compensation spring 26 and thepermeable plate 27 ensure appropriate pressure of both activatedcarbon layers - Filtering covers 12, 13, 22, 23, 24 and 25 are made e.g. from the polyurethane foam and prevent activated carbon to get out of the adsorbing chambers, thus disallowing to clog outlets or openings of the particular partitions.
- Fuel vapours leaving the fuel tank 6 enters the
canister 1 through theinlet port 7 and diffuse in the firstadsorbing chamber 5, where the neutralization of light hydrocarbons is carried out. After the start of the engine, the fuel vapours, collected in the canister are inducted by negative pressure of theintake pipe 8 and then burnt inside the combustion chamber. If the vapours pressure is high, they flow through thechannel 10 to theoutlet adsorbing chamber 17, from which they are discharged into the atmosphere through theatmospheric port 21. - The
housing 2 of the canister shown in Fig. 1 has the form of a single element mould, made of glass-fibre reinforced ethylene, along with thepermeable plates dashed line 28 depicts the joining surface of internal cooperating parts of the moulding form (not shown) used for the manufacture of the internal elements of the canister, and in particular thepermeable plates - The
permeable plate 18 is shown in Fig. 2 in the top-down view. The plate is an integral part of thehousing 2 and has the form of a single element shape comprising three elastic, elongated, substantially parallel to each other, connectingmembers plate 18. The internal surface of the wall of thehousing 2 transforms into the first end of each connecting member 29, while the second end of each connecting member 29 transforms into theplate 18. Therefore thehousing 2, connectingmembers plate 18 are integral with each other. - The dimensions of the connecting members depend on many parameters, in particular on the assumed length of longitudinal displacement of the plate. The connecting members practically disallow the plate to rotate between the adsorbent layers.
- Along the external edge, the plate is surrounded by the stabilising
wall 31. The wall defines the contact surface of theplate 18 with the filtering covers 23 and 24 of accordingly the inner 19 and the outer 20 adsorbing layer and ensures appropriate transversal stiffness of theplate 18. Obviously instead of the stabilisingwall 31 theplate 18 may be a solid block within the area of each of foursegments members - Additionally the
plate 18 comprises theopening 32 for the restricted circulation of vapours between the adsorbing layers, although in some designs the presence of gaps between the connecting members 29 and the plate may be completely sufficient to ensure the flow. - Drawing Fig. 3 shows the
plate 18 of thickness H in its bottom, neutral position. Such a shape of the plate is achieved during the moulding process. As shown, the connectingmembers - Drawing Fig. 4 shows the
plate 18 in its top position, which it would have under the action of the force directed upwardly. As shown, the connecting members are deflected enabling the displacement of the plate in the chamber of the distance H-h (cf. Fig. 3). - The plate should be preferably designed in such a way that under the pressure of the compensation spring it takes one of the intermediate positions between the bottom neutral position (Fig. 3) and the top position (Fig. 4).
- The design of the
plate 14 of the inlet adsorbing chamber is similar. The plate however comprises a socket for thesprings - The drawings Fig. 5 and Fig. 6 present other embodiments of the permeable plate according to the invention. Reference numerals of elements having the same functions remain the same as above.
- The
partition 18a shown in Fig. 5 comprises only two connectingmembers orifices 32. - The
partition 18b of the drawing Fig. 6 is used as a partition for the adsorbing chambers having a substantially circular cross-section. It comprises fourmembers 29a-29d. Additionally, in this embodiment eachorifice 32 is surrounded by the stabilisingwall 31 performing the similar functions to that shown in Fig. 2. - The presented embodiments of the canister are quoted exclusively to illustrate operation principle of the appliance and in any case cannot be considered as exhausting solutions to which the invention is limited. It is obvious that the permeable plate of the present invention may be equally used in canisters having only one adsorbing chamber or canisters without the partition dividing the outer adsorbing chamber into separate layers.
Claims (10)
- A canister for evaporated fuel processing system having a housing, inside of which at least one adsorbing chamber, filed with adsorbing agent, is placed, where the inlet adsorbing chamber is connected to a fuel tank and to an intake pipe of an internal combustion engine and the outlet adsorbing chamber comprises an atmospheric port, where in at least one adsorbing chamber across a vapours flow path at least one permeable plate is placed, characterised in that, said at least one permeable plate (14, 18) has the form of uniform shape element able to displace along the adsorbing chamber and comprises at least two elastic connecting members (29) fixed at one end to the wall of the adsorbing chamber and from the other end entering inside and transforming into the permeable plate (14, 18).
- The canister as claimed in Claim 1, characterised in that, the thickness (h) of the connecting members (29) is lower than the working thickness (H) of the permeable plate (14, 18).
- The canister as claimed in Claim 1 or 2, characterised in that, the housing (2) and said at least one permeable plate (14, 18) are made of plastic in the form of single, integral moulding, where the internal surface of the wall of the housing (2) transforms into the first end of each connecting member (29), while the second end of each connecting member (29) transforms into the plate (14, 18).
- The canister as claimed in Claim 1 or 2 or 3, characterised in that, the permeable plate (14, 18) in its neutral position is displaced in the direction opposite to the direction of the force of the compensation means.
- The canister as claimed in any one of Claims 1 to 4, characterised in that, the permeable plate (14, 18) comprises a stabilising wall (31).
- The canister as claimed in Claim 5, characterised in that the stabilising wall (31) surrounds the external edge of the permeable plate (14, 18).
- The canister as claimed in any one of Claims 1 to 4, characterised in that, the permeable plate (14, 18) is a solid block within the area of each segment (30) defined by the connecting members (29).
- The canister as claimed in any one of the preceding claims, characterised in that, the permeable plate (14, 18) comprises at least one opening (32) for the vapour circulation.
- The canister as claimed in any one of Claims 1 to 8, characterised in that, the permeable plate (18) is a partition dividing the outlet adsorbing chamber into the internal (19) and the external (20) adsorbing layer.
- The canister as claimed in any one of Claims 1 to 8, characterised in that, the permeable plate (14) is the closing plate of the adsorbing chamber (5) leaning against the compensation means (15, 16).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05002259A EP1688609A1 (en) | 2005-02-03 | 2005-02-03 | Canister for evaporated fuel processing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05002259A EP1688609A1 (en) | 2005-02-03 | 2005-02-03 | Canister for evaporated fuel processing system |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1688609A1 true EP1688609A1 (en) | 2006-08-09 |
Family
ID=34933577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05002259A Withdrawn EP1688609A1 (en) | 2005-02-03 | 2005-02-03 | Canister for evaporated fuel processing system |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1688609A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104847540A (en) * | 2014-11-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Desorption control device and carbon tank assembly and fuel system having same |
CN106870210A (en) * | 2017-03-07 | 2017-06-20 | 安徽江淮汽车集团股份有限公司 | A kind of canister assembly |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5119791A (en) * | 1991-06-07 | 1992-06-09 | General Motors Corporation | Vapor storage canister with liquid trap |
US5538542A (en) * | 1993-11-19 | 1996-07-23 | Toyo Roki Seizo Kabushikikaisha | Fuel vapor capturing canister having increased distance of flow of fuel vapor passing through adsorbent layer |
US5599384A (en) * | 1994-06-15 | 1997-02-04 | Tsuchiya Mfg. Co., Ltd. | Fuel vapor treatment device |
US20010039881A1 (en) * | 2000-05-15 | 2001-11-15 | Masatoshi Moriyama | Canister |
US20020078931A1 (en) | 2000-12-25 | 2002-06-27 | Aisan Kogyo Kabushiki Kaisha | Canister |
-
2005
- 2005-02-03 EP EP05002259A patent/EP1688609A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5119791A (en) * | 1991-06-07 | 1992-06-09 | General Motors Corporation | Vapor storage canister with liquid trap |
US5538542A (en) * | 1993-11-19 | 1996-07-23 | Toyo Roki Seizo Kabushikikaisha | Fuel vapor capturing canister having increased distance of flow of fuel vapor passing through adsorbent layer |
US5599384A (en) * | 1994-06-15 | 1997-02-04 | Tsuchiya Mfg. Co., Ltd. | Fuel vapor treatment device |
US20010039881A1 (en) * | 2000-05-15 | 2001-11-15 | Masatoshi Moriyama | Canister |
US20020078931A1 (en) | 2000-12-25 | 2002-06-27 | Aisan Kogyo Kabushiki Kaisha | Canister |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104847540A (en) * | 2014-11-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Desorption control device and carbon tank assembly and fuel system having same |
CN104847540B (en) * | 2014-11-19 | 2017-08-04 | 北汽福田汽车股份有限公司 | A kind of desorption control apparatus and canister assembly with it, fuel system |
CN106870210A (en) * | 2017-03-07 | 2017-06-20 | 安徽江淮汽车集团股份有限公司 | A kind of canister assembly |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8801840B2 (en) | Evaporated fuel treating device | |
JP6507092B2 (en) | Evaporative fuel processing system | |
US9482190B2 (en) | Evaporated fuel treating apparatus | |
US8529676B2 (en) | Fuel vapor adsorption canister | |
US8881710B2 (en) | Bleed element with overmolded seal for evaporative emissions canister | |
US9422894B2 (en) | Evaporation fuel processing device | |
US9334836B2 (en) | Evaporation fuel processing device | |
US10138848B2 (en) | Canister | |
US7455054B2 (en) | Canister with fuel gas reducing device | |
JP2003003915A (en) | Canister for disposing of vaporized fuel | |
KR102008195B1 (en) | Fuel Steam Filters for Tank Ventilation in Vehicles with Improved Filling Characteristics | |
JP6762689B2 (en) | Evaporative fuel processing equipment | |
EP1688609A1 (en) | Canister for evaporated fuel processing system | |
CN113389662B (en) | Adsorption tank | |
US11331617B2 (en) | Canister | |
WO2005023573A3 (en) | Evaporative emissions canister with incorporated liquid trap | |
US9249762B2 (en) | Evaporated fuel treatment apparatus | |
JP7444838B2 (en) | canister | |
US20150075380A1 (en) | Activated-carbon filter with storage volume for a fuel tank | |
CN114856870A (en) | Evaporated fuel treatment device | |
US6935318B2 (en) | Evaporated fuel processing device | |
EP1788230A1 (en) | Canister for evaporated fuel processing system with a monolithically formed block of activated carbon and a method of manufacturing thereof | |
CN114876675A (en) | Evaporated fuel treatment device | |
US10590889B2 (en) | Canister | |
US20130291734A1 (en) | Carbon canister with integrated filter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR LV MK YU |
|
17P | Request for examination filed |
Effective date: 20070209 |
|
AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
17Q | First examination report despatched |
Effective date: 20070323 |
|
17Q | First examination report despatched |
Effective date: 20070323 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20100831 |