EP1552133A1 - Kraftstoffversorgungssystem für eine brennkraftmaschine - Google Patents
Kraftstoffversorgungssystem für eine brennkraftmaschineInfo
- Publication number
- EP1552133A1 EP1552133A1 EP03756474A EP03756474A EP1552133A1 EP 1552133 A1 EP1552133 A1 EP 1552133A1 EP 03756474 A EP03756474 A EP 03756474A EP 03756474 A EP03756474 A EP 03756474A EP 1552133 A1 EP1552133 A1 EP 1552133A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- supply system
- fuel supply
- activated carbon
- valve
- carbon canister
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 31
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 92
- 230000008929 regeneration Effects 0.000 claims description 27
- 238000011069 regeneration method Methods 0.000 claims description 27
- 239000002828 fuel tank Substances 0.000 claims description 19
- 238000010926 purge Methods 0.000 claims description 5
- 238000011068 loading method Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 239000003610 charcoal Substances 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 description 10
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
-
- 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
Definitions
- the invention relates to a fuel supply system for an internal combustion engine according to the preamble of claim 1.
- a fuel supply system of the aforementioned type is known from DE 199 47 080 Cl, in which, based on an internal combustion engine working with air-assisted direct injection, regeneration of the activated carbon container with pressure flushing is provided.
- a pressure regulator is assigned to the pressure source provided for the air-assisted direct injection and formed by a pressure pump, and the excess quantity diverted via the pressure regulator is fed to the activated carbon canister for regeneration.
- the air flushing through the activated carbon container, loaded with hydrocarbons, is returned to the air supply duct via a regeneration valve adjacent to the inlet module.
- Such a solution enables the consideration of the hydrocarbons additionally introduced by the regeneration of the activated carbon canister when determining the injection quantities via the lambda probe assigned to the internal combustion engine, but is for the regeneration to the pressurized flushing of the activated carbon canister, and thus to a surplus Pressure pump, bound.
- the invention has for its object to provide a fuel supply system of the type mentioned in such a way that this enables both a flushing of the activated carbon canister with overpressure and with underpressure, and is therefore independent of the execution of the regeneration of operating states of the internal combustion engine and the pressure sources associated therewith and thereby also , without or with only minor modifications, in connection with differently operated internal combustion engines, for example with internal combustion engines working with or without a supercharger.
- a fuel supply system which, when configured for operation with a pressure source provided on the supply side to the internal combustion engine, and thus possible pressure flushing of the activated carbon canister, also enables operation in which the activated carbon canister is flushed with negative pressure.
- connection of the fuel tank to the atmosphere and the branch from the air supply channel in the inlet to the activated carbon canister are each valve-controlled and to the ventilation of the fuel tank and for the regeneration of the activated carbon canister alternately activated, which - with a simple construction - when the branching is blocked against the activated carbon canister
- Via the valve-controlled connection connection of the fuel tank to the atmosphere, which runs via the activated carbon canister, and via the section of the branch which is led back to the inlet module and in which the regeneration valve is located flushing with negative pressure is possible.
- Further possibilities in this regard arise in particular when using a controlled valve, in particular one Proportional valves in the outlet of the connection to the atmosphere.
- the alternate activation of the connection of the fuel tank to the atmosphere and the inlet-side section of the branch opening onto the activated carbon tank from the air supply system is preferably carried out according to the invention via a common directional valve, the directional valve being in particular designed as a 4/2-way valve.
- a common directional valve the directional valve being in particular designed as a 4/2-way valve.
- a 4/3-way valve can also be used, which as a further position ne blocked position with respect to all connections, so that the activated carbon canister is blocked both against the tank as well as against the section of the branch emanating from the inlet module and the air sucked in to purge the activated carbon canister is only via the connection connection of the activated carbon canister to the atmosphere.
- 1 denotes an internal combustion engine, here an internal combustion engine working with spark ignition, to which an outlet module 2 and an inlet module 3 are assigned and to whose inlet module 3 a fuel supply system 4 is connected, which comprises a fuel tank 5 and an activated carbon canister 6.
- a fuel supply system 4 which comprises a fuel tank 5 and an activated carbon canister 6.
- an air supply duct 8 connects to the inlet module 3, to which a throttle valve 7 is assigned on the inlet side, in which there is a charger as the pressure source 9, to which a bypass valve 10 has an air recirculation valve 11 assigned.
- An air mass meter 12 which is preferably designed as a hot-film air mass meter, is located downstream of the pressure source 9, that is to say downstream of the pressure source 9 in the air supply duct 8, in the flow direction onto the inlet module 3. Between the air mass meter 12 and the connection of the air supply duct 8 to the inlet module 3 there is the connection for a branch 13, which comprises sections 14, 15 and 16, and of which the section 14 connects to a directional valve designed here as a 4/2-way valve 17 connects.
- the Directional control valve 17 lies in the transition to section 15 of branch 13, which is connected to the activated carbon canister 6, from which section 16 starts, in which a 2/2-way valve is arranged as regeneration valve 18 and which then connects to regeneration valve 18 on the Inlet module 3, preferably adjacent to one or more of the suction channels of internal combustion engine 1, opens out.
- the air mass meter can also be arranged upstream of the pressure source within the scope of the invention, since the entire air mass is also recorded in this way, provided that no relief valve is assigned to the charger.
- connection line 19 to the atmosphere is assigned to the activated carbon canister 6, a check valve 20 blocking the atmosphere lying in the direction of the atmosphere lying in the connection line 19.
- a connection 21 to the fuel tank 5 is provided on the activated carbon canister 6, which runs via the directional control valve 17, the directional control valve 17 having two switching positions, in one of which the connection connection 21 between the fuel tank is in the basic position 5 and is activated as an activated carbon canister 6, with simultaneous interruption of the connection between the sections 14 and 15 of the branch 13, and in its second switching position switched by an actuator, the connection of the fuel tank 5 to the activated carbon canister 6 is interrupted and the sections 14 and 15 of the Junction 13 are connected.
- the regeneration valve 18 is shown in its first switching position forming a basic position, in which the connection via the section 16 of the branch 13 is interrupted. Chen and can be switched via an actuator to a second switching position in which this connection is open.
- the check valve 20 can also be designed as a controlled valve within the scope of the invention.
- the structure of the fuel supply system 4 described illustrates that the flushing and thus the regeneration of the activated carbon canister 6 can take place both with overpressure and with underpressure, and thus its function is also independent of the operation of the charger as a pressure source 9, which also makes it suitable for internal combustion engines 1 is given that work with switchable loader.
- the system can be used, for example, in the context of vehicle series with different engine configurations, with the same structure and, if necessary, in adaptation to emaciated construction, so that there is a small number of parts in spite of varying application conditions.
- the fuel supply system 4 is operated with excess pressure in relation to the regeneration of the activated carbon canister 6, the fresh air sucked in via the charger as the pressure source 9 is compressed to a small extent by gently closing the recirculation valve 11 before it is transferred via the air mass meter 12 of the internal combustion engine 1 the throttle valve 7 flows.
- a portion of the pre-compressed air is branched off from the air supply duct 8 between the air mass meter 12 and the throttle valve 7 and is supplied to the activated carbon canister 6 via the section 14 of the branch 13, the directional valve 17 switched to the switch position 2 for regeneration and the line section 15.
- the feed to the inlet module 3 the relevant connection preferably opening in the area of the suction channels of the internal combustion engine 1 in order to use the negative pressure given there.
- the opening angle of the throttle valve 7 is reduced accordingly, and the additional supplied flushing flow enriched with hydrocarbons is thus compensated.
- the regeneration by the lambda shift can directly affect the loading condition of the activated carbon container 6 are closed, so that, in view of the very short response times, the loading condition of the activated carbon container 6 does not have to be recorded in advance in or during a regeneration phase and must be taken into account with regard to its contribution to the mixing ratio.
- the branch 13 is shut off from the atmosphere when the activated carbon canister 6 is flushed with overpressure via the check valve 20, via which, due to the structure described above, in the shown switching position 1 of the directional control valve 17, the ventilation of the fuel tank 5 outside the phases regeneration takes place.
- the basic structure of the fuel supply system 4 shown enables further a rinse with vacuum with inactive pressure source 9 by utilizing the gap formed between the inflow side to the throttle valve 7 (air ⁇ supply duct 8) and the inflow side to the suction ports of the intake module 3 (section 16 of the junction 13 ) given the pressure.
- the directional control valve 17 is switched into its second switching position, in which the fuel tank 5 is shut off against the activated carbon canister 6, so that there is no negative pressure on the fuel canister 5.
- a configuration of the valve 20 in the connecting line 19 as a switched valve is expedient, so that the entire air quantity supplied to the internal combustion engine 1 on the inlet side also runs over the air mass meter 12 for flushing with negative pressure.
- the first switching position of the directional control valve 17 corresponds to a preferably pressure-dependent and / or opening position against the atmosphere, so that the fuel tank 5 is ventilated via the activated carbon canister 5 if necessary.
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)
- Supercharger (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10247936A DE10247936A1 (de) | 2002-10-15 | 2002-10-15 | Kraftstoffversorgungssystem für eine Brennkraftmaschine |
| DE10247936 | 2002-10-15 | ||
| PCT/EP2003/010916 WO2004036023A1 (de) | 2002-10-15 | 2003-10-02 | Kraftstoffversorgungssystem für eine brennkraftmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1552133A1 true EP1552133A1 (de) | 2005-07-13 |
| EP1552133B1 EP1552133B1 (de) | 2006-04-19 |
Family
ID=32049260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03756474A Expired - Lifetime EP1552133B1 (de) | 2002-10-15 | 2003-10-02 | Kraftstoffversorgungssystem für eine brennkraftmaschine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7044112B2 (de) |
| EP (1) | EP1552133B1 (de) |
| JP (1) | JP2006503212A (de) |
| DE (2) | DE10247936A1 (de) |
| WO (1) | WO2004036023A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4987729B2 (ja) * | 2005-01-10 | 2012-07-25 | イナジー・オートモーティブ・システムズ・リサーチ・(ソシエテ・アノニム) | 電子制御式の電気機械バルブ |
| DE102007040913A1 (de) | 2007-08-30 | 2009-03-05 | Bayerische Motoren Werke Aktiengesellschaft | Tankentlüftungssystem eines Kraftfahrzeugs |
| IT1394034B1 (it) * | 2009-05-15 | 2012-05-25 | Ponti Motors S R L | Metodo per lo svuotamento e l'asciugatura di un impianto di iniezione di vapore acqueo, e dispositivo che attua tale metodo |
| DE102010019831B4 (de) * | 2010-05-08 | 2016-05-12 | Audi Ag | Tankentlüftungseinrichtung für einen Kraftstofftank eines Kraftfahrzeugs |
| GB201104311D0 (en) | 2011-03-15 | 2011-04-27 | British American Tobacco Co | Method and apparatus for impregnating tobacco industry products with sensate constituents of botanicals |
| DE102011120506A1 (de) | 2011-12-07 | 2013-06-13 | Daimler Ag | Tankentlüftungsvorrichtung für ein Kraftfahrzeug |
| US9261054B2 (en) | 2012-03-23 | 2016-02-16 | Ford Global Technologies, Llc | Fuel system diagnostics |
| WO2014133741A1 (en) | 2013-02-26 | 2014-09-04 | Emd Millipore Corporation | Selective removal of a protein from a mixture of proteins using activated carbon by adjusting solution conditions |
| DE102017219220A1 (de) * | 2017-10-26 | 2019-05-02 | Continental Automotive Gmbh | Anordnung einer Pumpe zum Spülen eines Kraftstoffspeichers eines Fahrzeugs und Kraftstoffverdunstungsrückhaltesystem |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58110853A (ja) * | 1981-12-25 | 1983-07-01 | Honda Motor Co Ltd | 過給機付内燃機関における蒸発燃料制御装置 |
| US4560210A (en) * | 1982-08-14 | 1985-12-24 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Brake system for vehicles |
| DE3519475A1 (de) * | 1985-05-31 | 1986-12-04 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren und vorrichtung zur tankentlueftungssteuerung bei brennkraftmaschinen |
| JPH04308348A (ja) * | 1991-04-01 | 1992-10-30 | Toyota Motor Corp | 蒸発燃料回収装置 |
| JPH04311664A (ja) * | 1991-04-11 | 1992-11-04 | Toyota Motor Corp | 蒸発燃料回収装置 |
| US5220898A (en) * | 1991-08-22 | 1993-06-22 | Toyota Jidosha Kabushiki Kaisha | Pressure control system for controlling pressure in fuel tank of engine by controlling discharging of evaporated fuel in fuel tank into canister |
| JP3252519B2 (ja) * | 1993-02-26 | 2002-02-04 | スズキ株式会社 | 蒸発燃料制御装置 |
| JP3090051B2 (ja) * | 1996-07-16 | 2000-09-18 | トヨタ自動車株式会社 | 燃料蒸気処理装置の故障診断装置 |
| DE19650517C2 (de) * | 1996-12-05 | 2003-05-08 | Siemens Ag | Verfahren und Vorrichtung zur Tankentlüftung für eine direkteinspritzende Brennkraftmaschine |
| JP3561649B2 (ja) * | 1999-02-05 | 2004-09-02 | 本田技研工業株式会社 | 内燃機関の蒸発燃料処理装置 |
| JP3501028B2 (ja) * | 1999-07-30 | 2004-02-23 | トヨタ自動車株式会社 | 蒸発燃料パージシステムの故障診断装置 |
| DE19947080C1 (de) * | 1999-09-30 | 2001-01-25 | Siemens Ag | Vorrichtung und Verfahren zur Regenerierung eines Aktivkohlefilters |
| DE10001060C1 (de) * | 2000-01-13 | 2001-07-26 | Daimler Chrysler Ag | Vorrichtung zur Erzeugung von Unterdruck in einem Kraftfahrzeugsystem |
-
2002
- 2002-10-15 DE DE10247936A patent/DE10247936A1/de not_active Withdrawn
-
2003
- 2003-10-02 EP EP03756474A patent/EP1552133B1/de not_active Expired - Lifetime
- 2003-10-02 WO PCT/EP2003/010916 patent/WO2004036023A1/de not_active Ceased
- 2003-10-02 DE DE50303057T patent/DE50303057D1/de not_active Expired - Fee Related
- 2003-10-02 JP JP2004544063A patent/JP2006503212A/ja active Pending
-
2005
- 2005-04-14 US US11/106,037 patent/US7044112B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004036023A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004036023A1 (de) | 2004-04-29 |
| EP1552133B1 (de) | 2006-04-19 |
| DE10247936A1 (de) | 2004-04-29 |
| US20050199223A1 (en) | 2005-09-15 |
| US7044112B2 (en) | 2006-05-16 |
| DE50303057D1 (de) | 2006-05-24 |
| JP2006503212A (ja) | 2006-01-26 |
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