CN101279584B - Method for discharging fuel collected container of tank vent system and fuel tank vent system - Google Patents
Method for discharging fuel collected container of tank vent system and fuel tank vent system Download PDFInfo
- Publication number
- CN101279584B CN101279584B CN200810090135.6A CN200810090135A CN101279584B CN 101279584 B CN101279584 B CN 101279584B CN 200810090135 A CN200810090135 A CN 200810090135A CN 101279584 B CN101279584 B CN 101279584B
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- Prior art keywords
- fuel
- collection container
- negative pressure
- tank
- hydro
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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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
- F02M37/0082—Devices inside the fuel tank other than fuel pumps or filters
-
- 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
- F02M25/089—Layout of the fuel vapour installation
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/20—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines characterised by means for preventing vapour lock
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The present invention relates to a method of a fuel collecting container for emptying remaining fuel liquid in a ventilating system oil tank, wherein the fuel collecting container communicates with the oil tank through a ventilating duct, especially used for vehicles with a internal-combustion engine, optimization automobile, the method is provided with the following steps: producing negative-pressure relative to pressure of the fuel collecting container in the oil tank, then sucking fuel liquid existing in the collecting container back to the oil tank through the ventilating duct. Furthermore, the present invention also relates to a corresponding ventilating system of the oil tank.
Description
Technical field
The present invention relates to a kind of for the ventilate method of the fuel collection container that presses down liquid stay fuel (liquid fuel) of (exhaust) system/device of off-loading, wherein this fuel collection container is connected with fuel tank by ventilator tube (ventilation channel), especially for the vehicle with combustion engine, in the preferred power actuated vehicle.
In addition, the invention still further relates to a kind of tank vent system with the fuel collection container that presses down liquid stay fuel, this fuel collection container is connected with fuel tank by ventilator tube, especially for the vehicle with combustion engine, in the preferred power actuated vehicle.
Background technology
The method and the corresponding oil tank system that are used for the fuel collection container that presses down liquid stay fuel of off-loading ventilation system are known.In these methods and system, by make the liquid fuel that accumulates in the fuel collection container via independent backhaul reflux (recirculation) carry out in the fuel tank emptying.The fuel collection container is connected with fuel tank like this by ventilator tube, so that liquid fuel can directly flow to the fuel tank that is positioned at the lower position place from the fuel collection container that is positioned at the higher position by backhaul.The shortcoming of this arrangement form of fuel collection container and fuel tank is, needs very high space to realize diff-H between these two parts.Perhaps, carry out the emptying of fuel collection container by the outflow valve in the backhaul, this outflow valve is arranged on the height level place of ventilator tube below.In this arrangement form, the fuel collection container can---be arranged on the below of the level of fuel of fuel in the fuel tank at least in part---.Be lower than a predeterminated level in the situation that level of fuel drops to, described outflow valve is opened.The shortcoming of this arrangement form is, on the one hand (will) open additional, can make liquid fuel (liquid carry/with liquid (LCO)) enter the path of tank vent system, additionally need on the other hand outflow valve.
Summary of the invention
Therefore, the object of the invention is to, provide a kind of method and corresponding tank vent system of the fuel collection container for the off-loading ventilation system, even this tank vent system is also realized the emptying of fuel collection container with simple method and mode in the situation that system height is less.
According to the present invention, described purpose realizes by following steps:
-in fuel tank, produce the negative pressure with respect to the pressure in the fuel collection container, then
-the liquid fuel that will be present in the fuel collection container by ventilator tube is drawn back in the fuel tank.
Poor by mineralization pressure between fuel tank and fuel collection container, liquid fuel is drawn back in the fuel tank by ventilator tube, rather than flows back in the fuel tank, like this by independent backhaul, ventilator tube can partly above level of fuel, particularly extend above the fuel collection container.Preferably be provided with a valve in ventilator tube, this valve---at least to a great extent---stops liquid fuel to enter the fuel collection container from fuel tank.
According to improvement project regulation according to the present invention, but negative pressure at inhale fresh air so that the hydro-carbon of tank vent system produce when staying filter regeneration.But this hydro-carbon stays filter particularly to be designed to active carbon filter, but described hydro-carbon stays filter absorbed to be included in fuel in the fuel vapour, only allows air to overflow/escape in the atmosphere.In order to regenerate, make the reverse also inhale fresh air of direction of air-flow.Fresh air carries again fuel and the processed/removing that absorbs.This negative pressure is produced by negative pressure source.This negative pressure source produces negative pressure in fuel tank in inhale fresh air.In addition, except fresh air, but also stay suction fuel-air miscellany ventilator tube, fuel collection container, ventilator tube and the fuel tank of filter and fuel collection container from being communicated with hydro-carbon.In order to control/regulate this by the suction process of negative pressure source, but in staying being connected between filter and the negative pressure source, hydro-carbon is provided with shutoff valve.
Regulation especially by finishing the fresh air suction process, and is carried out resorption based on the pressure condition that is produced by described suction process/relation.Thereby be arranged on hydro-carbon and stay shutoff valve between filter and the negative pressure source to close to finish the fresh air suction process but make especially.But the fuel collection container stays filter to be connected by vent line and hydro-carbon, but this hydro-carbon stays filter to be connected with the fresh air of ambient atmosphere again.Pressure in the fuel collection container roughly increases to bar pressure.If enough large with respect to the difference of pressure between the negative pressure of this pressure in the pressure in the fuel collection container and the fuel tank, the liquid fuel that then is present in the fuel collection container is drawn back in the fuel tank by ventilator tube.This ventilator tube towards the end one of (close) fuel collection container in the bottom section of fuel collection container.Here, ventilator tube is designed to breather pipe, and this breather pipe passes into the inside of fuel collection container from the top, the end of this breather pipe end at the fuel collection container floor near.
According to the present invention, tank vent system is characterised in that, is used for the ventilator tube of the liquid fuel resorption that undertaken by the negative pressure of fuel tank, ends in the bottom section of fuel collection container.Be drawn back in the fuel tank by ventilator tube being arranged like this or is configured in the fuel collection container, make the difference of pressure that passes through to produce when the liquid fuel that accumulates in this fuel collection container can produce negative pressure with respect to pressure in the fuel collection container in fuel tank.
According to improvement project regulation according to the present invention, ventilator tube is breather pipe, and this breather pipe passes into the inside of fuel collection container from the top, the end of this breather pipe end at the fuel collection container floor near.Thereby guarantee that liquid fuel is as far as possible fully by resorption.
In addition, advantageously stipulate, but the fuel collection container is connected with the ventilator tube that the fresh air of ambient atmosphere is connected with stay filter by hydro-carbon.But hydro-carbon stays filter absorbed to be included in fuel in the fuel-air miscellany, only allows air to escape in the ambient atmosphere.But this hydro-carbon stays particularly active carbon filter of filter.
According to improvement project regulation of the present invention, but hydro-carbon stays filter to be connected with negative pressure source.But in order to make hydro-carbon stay filter regeneration, but this hydro-carbon stays filter to be connected with negative pressure source, but fresh air stays filter to suck from ambient atmosphere through this hydro-carbon.Fresh air carries again the fuel that absorbs and guides it into negative pressure source.In fuel tank, produce the negative pressure that is used for fuel is drawn back into from the fuel collection container subsequently fuel tank here.
In addition, regulation advantageously, but in staying being connected between filter and the negative pressure source, hydro-carbon is provided with shutoff valve.But control/regulate the regenerative cycle that hydro-carbon stays filter by means of this shutoff valve.This is cycled to used in and sets up negative pressure and resorption fuel subsequently in fuel tank.
Stipulate in a favourable embodiment of the present invention, negative pressure source is the air inlet system of combustion engine.But guide in the combustion engine by the fuel that this air inlet system will be carried by fresh air when making hydro-carbon stay filter regeneration and to burn.
Description of drawings
The present invention is described in detail with reference to the accompanying drawings for the below.Shown in the figure:
Fig. 1 is illustrated in fuel tank and the tank vent system among the first embodiment, stays during the filter regeneration but wherein be in hydro-carbon,
The arrangement form of Fig. 1 when Fig. 2 is illustrated in the fuel tank ventilation, and
Fig. 3 illustrates another embodiment of tank vent system.
The specific embodiment
Fig. 1 illustrates fuel tank 1 and the tank vent system 2 of an internal combustion engines of motor vehicles (not shown) with schematic diagram.This tank vent system 2 has the fuel collection container 4 that sets in the upper area 3 of fuel tank 1.This fuel collection container 4 is connected by ventilator tube 5 on flow technique with fuel tank 1.This ventilator tube 5 is designed to L shaped breather pipe 6, and the downtake 7 of this breather pipe passes into the inside of fuel collection container 4 from the top, and near the bottom section a end 8 ends at the base plate 9 of fuel collection container 4.Another end 10 relative with a described end 8 of breather pipe 6 is connected on the valve 12 that is designed to float valve 11, is used for avoiding liquid fuel to enter tank vent system 2.The upper area 3 interior float valves 11 that are arranged in fuel tank 1 have buoyancy chamber 13, and this buoyancy chamber has opening 14 in its bottom side 12.When liquid fuel spill into from fuel tank 1 opening 15 and by means of buoyancy promote float valve 11 be arranged in float 16 in this buoyancy chamber 13 time, this float cuts out (fuel collection container 4 is connected with fuel tank 1).Therefore, valve 12 stops so-called liquid to carry (LCO).But the fuel collection container stays filter 18 to be connected by a vent line 17 and hydro-carbon.But this hydro-carbon stays filter 18 particularly to be designed to active carbon filter 19.An end 20 of vent line 17 ends at the upper area 21 of fuel collection container 4.But another end 22 relative with a described end 20 of vent line 17 is connected to hydro-carbon and stays on the filter 18.Lead to the pipeline 23 of ambient atmosphere and lead to another pipeline 24 of negative pressure source 27 but this hydro-carbon stays filter 18 to have, described negative pressure source 27 is designed to the air inlet system 26 of combustion engine (not shown) here.In this pipeline 24, be provided with a shutoff valve 28 between the filter 18 but stay at negative pressure source 27 and hydro-carbon.
Tank vent system has following functions: according to the power/current intelligence in the fuel tank 1 and pressure, the opening and closing process of valve 12 so that the liquid fuel in tank vent system 2 be carried.This fuel is carried, and namely so-called liquid carries, and particularly occurs in the high situation of the gassing volume of dynamically travel mode and fuel.The fuel collection container 4 of tank vent system is arranged on the fuel tank 1 or in the fuel tank 1, particularly as flange cap usually integratedly.But fuel collection container 4 particularly has the outflow of prevention liquid fuel and spills into the labyrinth type design that hydro-carbon stays filter 18.The purpose of fuel collection container 4 is to press down liquid stay fuel.By the ventilator tube 5 that is designed to breather pipe 6, emptying by means of the liquid fuel amount that the resorption to fuel tank 1 will accumulate in the fuel collection container 4.For this reason, in fuel tank 1, produce negative pressure (Fig. 1) with respect to the pressure in the fuel collection container 4.Use the negative pressure source 27 (the particularly air inlet system 26 of combustion engine) that is connected with tank vent system 2 as the source that is used for producing negative pressure at fuel tank 1.But this negative pressure source 27 that is designed to air inlet system 26 is used for making hydro-carbon to stay filter 18 regeneration when operation.---in the situation that by shutoff valve 28 (fuel tank blow valve TEV) but control---stays filter 18 to suck in the combustion engines (arrow A) by hydro-carbon fresh air in order to wash and but this hydro-carbon of regenerating stays filter 18.By opening shutoff valve 28, via the pipeline 24 of present opening, from the ambient atmosphere inhale fresh air, on the other hand, but in fuel tank 1, set up the negative pressure of being stayed filter 18 throttlings by hydro-carbon by pipeline 23.The gas volume that negative pressure source 27 aspirates in the fuel tanks 1 by fuel collection container 4, but so that stay the negative pressure p that produces in the filter 18 at hydro-carbon
1, through the negative pressure p of the pipe throttle in fuel collection container 4
2, continue up to the negative pressure p of the upper area 3 of fuel tank 1 by the bubble that is arranged in the fuel collection container
3(arrow B).When setting up following pressure condition, wherein p is the density of fuel, and g is acceleration due to gravity:
p
2＜ρ×g×H
But be present in hydro-carbon and stay pressure p in the filter 18
1Can be after shutoff valve 28 be closed (Fig. 2) fuel height H by deposition in fuel collection container 4 will extract (arrow C) out from the gas volume of the upper area 3 of fuel tank 1, this fuel height H is by the packed height H of the liquid fuel in fuel collection container 4
1And have length/height H
3The height H of end 8 in fuel collection container 4 of downtake 7
2Between diff-H obtain.
But stay filter 18 regeneration periods at hydro-carbon, set up negative pressure in fuel tank 1, this negative pressure depends on fuel column H and the negative pressure p that is present in the fuel collection container 4
2Equilibrium of pressure below setting up:
p
3＝P
2-ρ×g×H
Follow closely after the regenerative cycle, shutoff valve 28 is closed.But fresh air stays filter 18 and vent line 17 to enter in the fuel collection container 4 by hydro-carbon.Roughly set up bar pressure above the liquid fuel in fuel collection container 4.In fuel tank 1, also there is the negative pressure p that produces in the regeneration stage
3Difference of pressure Δ p=p
3To push back in the fuel tank 1 from the liquid fuel of fuel collection container 4 by ventilator tube 5 and valve 12.Therefore, fuel collection container 4 is evacuated at most height H
2
This has the following advantages: can be by the negative pressure ventilation of Regeneration control, but the pressure when staying filter 18 regeneration at hydro-carbon changes, and is positioned at fuel collection container 4 (in the situation that possible without flowing out) than the depths so that corresponding negative pressure is emptying with respect to valve 12.
Must according to fuel tank 1 and fuel collection container 4, utilize parameter: the negative pressure p of negative pressure source 27 (the particularly air inlet system 26 of combustion engine)
1, the throttling situation of gas volume flow and breather pipe 6, vent line 17 systematically design essential negative pressure p with pipeline 23,24 pipeline cross-sectional area
3Obtain emptying condition here:
P
3＜ρ×g×H
3
And the pressure in regeneration stage:
p
3＝P
2-ρ×g×H
Pressure p in the fuel collection container 4
2Be applicable to:
P
2＜(H
3+H)×ρ×g
For height H
3=10cm and height H=5cm, obtaining negative pressure essential in the fuel collection container 4 is P
2＜-10mbar.This negative pressure is by attainable peak suction p
1Deducting throttle loss obtains.
In the fuel collection container, behind stopped heating, at fuel collection container 4 places of being filled by the liquid fuel that carries (LCO), by the cooling of fuel, form the negative pressure (NV: natural vacuum) that in fuel tank, is produced by volumetric shrinkage.The vacuum that should produce under the Parking state depends on cooling gradient and gas volume or fuel tank occupied state, difference of pressure Δ p=p by exist the same as the negative pressure that is produced by regenerative process
3-P
2Inhale fuel collection container 4 empty.In this case, emptying condition is:
p
3＜ρ×g×H
3
This emptying advantage of being undertaken by " natural vacuum " is, does not need the outflow valve for the fuel collection container, and the position of fuel collection container 4 also can be positioned at oil tank valve and goes out under the open height.
Fig. 3 illustrates another embodiment of tank vent system 2, and this embodiment is basically consistent with the embodiment of Fig. 1 and 2, therefore, its difference only is described here.In this embodiment, breather pipe 6 is not the inside that (with downtake 7) passes into fuel collection container 4 from the top, but has additional, horizontally extending pipe fitting 29 in its end 8.Thereby ventilator tube 5 leads to valve 12 with the form of simple siphon 30 from the bottom section 31 of fuel collection container 4.Identical with the embodiment of Fig. 1 and 2 from the principle of work of fuel collection vessel empty liquid fuel.
Reference numerals list
1 fuel tank
2 tank vent systems
3 upper areas
4 fuel collection containers
5 ventilator tubes
6 breather pipes
7 downtakes
8 ends
9 base plates
10 ends
11 float valves
12 valves
13 buoyancy chambers
14 bottom sides
15 openings
16 floats
17 vent lines
But 18 hydro-carbons stay filter
19 active carbon filters
20 ends
21 upper areas
22 ends
23 pipelines
24 pipelines
25 connecting lines
26 air inlet systems
27 negative pressure sources
28 shutoff valves
29 pipe fittings
30 siphons
31 bottom sections
The A arrow
The B arrow
The C arrow
The H height
H
1Highly
H
2Highly
H
3Length/height
Claims (9)
1. method that is used for the fuel collection container that presses down liquid stay fuel of off-loading ventilation system, wherein this fuel collection container is positioned at the upper area of fuel tank and is connected with fuel tank by ventilator tube, and the method has following steps:
-in fuel tank, produce the negative pressure with respect to the pressure in the fuel collection container, but described negative pressure at inhale fresh air so that the hydro-carbon of tank vent system produce when staying filter regeneration, and use the negative pressure source that is connected with this tank vent system as the source that is used for producing at fuel tank negative pressure, then
-the liquid fuel that will be present in the fuel collection container by ventilator tube is drawn back in the fuel tank.
2. method according to claim 1 is characterized in that, carries out described resorption by finishing the fresh air suction process, and this resorption is based on that the pressure condition that produced by described fresh air suction process carries out.
3. according to each described method in the claims, it is characterized in that, by be connected to produce described negative pressure with air-intake device for internal combustion engine.
4. but one kind has the tank vent system of the fuel collection container of liquid stay fuel, this fuel collection container is positioned at the upper area of fuel tank and is connected with fuel tank by ventilator tube, it is characterized in that, be used for by negative pressure the described ventilator tube (5) that liquid fuel is drawn back into fuel tank (1) being ended in the bottom section (31) of fuel collection container (4), but this negative pressure is used the negative pressure source that is connected with this tank vent system and stay filter regeneration to produce by the hydro-carbon that makes this tank vent system.
5. tank vent system according to claim 4, it is characterized in that, described ventilator tube (5) is breather pipe (6), this breather pipe passes into the inside of fuel collection container (4) from the top, the end of this breather pipe (8) end at fuel collection container (4) base plate (9) near.
6. according to claim 4 or 5 described tank vent systems, it is characterized in that, described fuel collection container (4) is connected with vent line (17), this vent line (17) but stay filter (18) to be connected with the fresh air of ambient atmosphere by hydro-carbon.
7. it is characterized in that, but described hydro-carbon stays filter (18) to be connected with negative pressure source (27) according to claim 4 or 5 described tank vent systems.
8. according to claim 4 or 5 described tank vent systems, it is characterized in that, but in described hydro-carbon stays pipeline (24) between filter (18) and the negative pressure source (27), be provided with shutoff valve (28).
9. according to claim 4 or 5 described tank vent systems, it is characterized in that, described negative pressure source (27) is the air inlet system (26) of combustion engine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007016765.4A DE102007016765B4 (en) | 2007-04-07 | 2007-04-07 | Method for emptying a liquid fuel-retaining fuel collecting vessel of a tank ventilation system and tank ventilation system |
| DE102007016765.4 | 2007-04-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101279584A CN101279584A (en) | 2008-10-08 |
| CN101279584B true CN101279584B (en) | 2013-02-20 |
Family
ID=39736276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810090135.6A Active CN101279584B (en) | 2007-04-07 | 2008-04-07 | Method for discharging fuel collected container of tank vent system and fuel tank vent system |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN101279584B (en) |
| DE (1) | DE102007016765B4 (en) |
| FR (1) | FR2914591B1 (en) |
| IT (1) | ITMI20080578A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009005826A1 (en) * | 2009-01-22 | 2010-07-29 | Magna Steyr Fuel Systems Gmbh | Fuel tank with built-in additional tank |
| US8555865B2 (en) * | 2010-09-08 | 2013-10-15 | Caterpillar Inc. | Fuel cap breather apparatus |
| DE102010055316B4 (en) * | 2010-12-21 | 2016-09-08 | Audi Ag | Device for venting and ventilating a fuel tank |
| DE102014007694B4 (en) * | 2014-05-23 | 2024-01-11 | Audi Ag | Method for suctioning liquid fuel from a liquid trap used to separate the liquid fuel in a fuel tank of a motor vehicle, and fuel system for a motor vehicle |
| WO2016049310A1 (en) | 2014-09-24 | 2016-03-31 | Eaton Corporation | Active drain liquid trap for fuel system |
| DE102017221596A1 (en) * | 2017-11-30 | 2019-06-06 | Aft Automotive Gmbh | Fill level valve for a pressure equalization line of a fluid tank assembly and corresponding fluid tank assembly |
| DE102018212640A1 (en) * | 2018-07-30 | 2020-01-30 | Bayerische Motoren Werke Aktiengesellschaft | Device and method for removing fuel vapor from a fuel supply system for an internal combustion engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6029635A (en) * | 1997-08-29 | 2000-02-29 | Fuji Jukogyo Kabushiki Kaisha | Fuel vapor emission preventing system |
| DE19925677A1 (en) * | 1999-06-04 | 2000-12-07 | Delphi Tech Inc | Ventilation system for fuel tanks esp. in motor vehicles has adsorption housing with air intake controlled by closure valve dependent upon ambient pressure |
| DE19925728A1 (en) * | 1999-06-07 | 2000-12-21 | Benteler Werke Ag | Motor vehicle fuel tanking system places expansion space within tank below maximum fill level and separated by a wall and linked to tank by pressure-equalizing valve. |
| CN1774351A (en) * | 2003-04-15 | 2006-05-17 | 拉法尔A.C.S.有限公司 | Dynamic liquid fuel trap |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6182693B1 (en) | 1999-06-08 | 2001-02-06 | Delphi Technologies, Inc. | Vapor canister and fuel tank assembly |
| DE10060239A1 (en) | 2000-12-05 | 2002-06-06 | Audi Ag | Venting system with activated carbon filter for vehicle fuel tank, includes pump to empty compensation tank in defined operational states |
| US7069916B2 (en) | 2003-09-12 | 2006-07-04 | Toyota Jidosha Kabushiki Kaisha | Evaporative fuel treatment apparatus for internal combustion engine |
| DE102004022564A1 (en) | 2004-05-07 | 2005-12-01 | Siemens Ag | Fuel supply device for a motor vehicle |
| JP4948775B2 (en) | 2004-06-14 | 2012-06-06 | 愛三工業株式会社 | Fuel supply device |
-
2007
- 2007-04-07 DE DE102007016765.4A patent/DE102007016765B4/en active Active
-
2008
- 2008-04-03 IT IT000578A patent/ITMI20080578A1/en unknown
- 2008-04-07 FR FR0801894A patent/FR2914591B1/en active Active
- 2008-04-07 CN CN200810090135.6A patent/CN101279584B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6029635A (en) * | 1997-08-29 | 2000-02-29 | Fuji Jukogyo Kabushiki Kaisha | Fuel vapor emission preventing system |
| DE19925677A1 (en) * | 1999-06-04 | 2000-12-07 | Delphi Tech Inc | Ventilation system for fuel tanks esp. in motor vehicles has adsorption housing with air intake controlled by closure valve dependent upon ambient pressure |
| DE19925728A1 (en) * | 1999-06-07 | 2000-12-21 | Benteler Werke Ag | Motor vehicle fuel tanking system places expansion space within tank below maximum fill level and separated by a wall and linked to tank by pressure-equalizing valve. |
| CN1774351A (en) * | 2003-04-15 | 2006-05-17 | 拉法尔A.C.S.有限公司 | Dynamic liquid fuel trap |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2914591A1 (en) | 2008-10-10 |
| FR2914591B1 (en) | 2012-11-02 |
| DE102007016765B4 (en) | 2023-03-30 |
| DE102007016765A1 (en) | 2008-10-09 |
| ITMI20080578A1 (en) | 2008-10-08 |
| CN101279584A (en) | 2008-10-08 |
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