EP1076171A2 - Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff in einen Ansaugkanal einer Brennkraftmaschine - Google Patents
Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff in einen Ansaugkanal einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP1076171A2 EP1076171A2 EP00116821A EP00116821A EP1076171A2 EP 1076171 A2 EP1076171 A2 EP 1076171A2 EP 00116821 A EP00116821 A EP 00116821A EP 00116821 A EP00116821 A EP 00116821A EP 1076171 A2 EP1076171 A2 EP 1076171A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- electromagnet
- another
- combustion engine
- seat body
- 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- Withdrawn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
- 238000002485 combustion reaction Methods 0.000 title claims description 21
- 239000000446 fuel Substances 0.000 title claims description 11
- 239000002828 fuel tank Substances 0.000 claims description 6
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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
- F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
-
- 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
- F02M2025/0845—Electromagnetic valves
Definitions
- the invention relates to a valve for metered introduction from the fuel tank of an internal combustion engine volatilized fuel into an intake duct Internal combustion engine according to the preamble of claim 1.
- Such a valve is, for example, from DE 42 44 113 A1 and known from DE 196 11 886 A1.
- Such Valves only have a flow characteristic, which is dependent on the flow through the valve of the differential pressure at the valve, on. The flow through these valves is particular in the suction area when there is a large differential pressure the valve, in many cases not fine enough meterable.
- the invention is therefore based on the object Valve for the metered introduction from the fuel tank an internal combustion engine volatilized fuel so that a fine dosage of the regeneration gas flow in any operating condition, in particular even with internal combustion engines that are not exclusively in suction mode, but also in turbo or compressor mode work is possible.
- This task is carried out with a valve for metered introduction from a fuel tank of an internal combustion engine volatilized fuel in the internal combustion engine of the type described above by the features of claim 1 solved.
- valve seat body and the further valve seat body which in principle are different Components can be formed in one piece with each other are connected. This particularly facilitates the Assembly and as a result lowers the assembly costs.
- electromagnet and the other Electromagnet one magnet housing or one magnet housing have forming component, with each other are connected in one piece.
- This embodiment too is simple and inexpensive Assembly versus training with two different Magnetic housings or two different, components forming a magnetic housing advantageous.
- the magnet housing or those forming the magnet housing Components can, for example, as a pot-shaped magnet housing be trained.
- a particularly beneficial one Embodiment provides that each have a magnet housing forming components two, via a connecting web are integrally connected U-shaped brackets, which bobbins of the electromagnet and at least take up another electromagnet.
- the electromagnet and the at least one further electromagnet via a common one Plug element are electrically contactable.
- the further outflow connection preferably has the shape of a Laval nozzle, through its smallest Diameter defines the flow of a flushing quantity becomes.
- This partial valve is the working stroke or the Opening cross section larger than the free opening cross section in the outlet nozzle, so that on one setting of the magnet can be dispensed with.
- the structure and the function of such fuel evaporation retention systems is for example the "Bosch Technical Instruction engine management Motronic ", 2nd edition, August 1993, pages 48 and 49.
- An in itself Known tank vent valve and its function goes for example from DE 42 44 113 A1 and DE 196 11 886 A1, to which reference is made here will emerge.
- a tank vent valve has a two-part valve housing 10 with a cup-shaped housing part 101 and a cap-shaped housing part that closes this 102 on.
- the cup-shaped housing part 101 carries an inlet connection 11 for connection to a ventilation connection of the fuel tank and one of these downstream, filled with activated carbon storage (not shown) for the volatilized fuel.
- the housing part 102 carries an outflow connection 12 and a further outflow connection 12a for connection different positions of the intake pipe of the internal combustion engine. For example, the discharge nozzle 12 with the air filter of the internal combustion engine between Filter material and throttle valve are connected, whereas the outlet pipe 12a with an opening directly behind the throttle valve of the internal combustion engine connected is.
- Adapter plug 80 for connecting an electrical Line via contact elements 81 for an electromagnet 20 and a further electromagnet 30 are provided.
- each of the two Electromagnet 20, 30 has one, a magnet housing forming, essentially U-shaped bracket 24 or 34, which are integral with one another via a web are connected.
- Each of the two electromagnets 20, 30 also has a hollow cylindrical magnetic core 25, 35 on the protrudes through both brackets 24, 34.
- Excitation coils 26 and 36 Arranged concentrically around the two magnetic cores 25, 35 are also wound with a hollow cylinder Excitation coils 26 and 36, each on a coil support are arranged, which the magnetic cores 25 or 35 enclose.
- the magnetic cores 25 and 35 can by Rotate in the U-shaped brackets 24 and 34 for adjustment purposes be moved axially.
- the magnetic core 25 is essentially aligned with the inflow nozzle 11, see above that the volatile fuel flowing in here flows directly through the magnetic core 25, whereas the Magnetic core 35 of the further electromagnet 30 in the further flow path parallel to this flow path is arranged.
- the two U-shaped brackets that form a magnetic housing 24 and 34 are angled outwards so that a support flange for one, a yoke or annular gap yoke of the electromagnets 20 or 30 forming valve seat body 27 and 37 form the the two U-shaped brackets acting as a magnet housing 24 or 34 covers.
- the valve seat body 27 or 37 are preferably in one piece trained, they each have valve openings on, from, for example, known circular segment shaped Shape that means between each of these and the magnetic cores 25 and 35 arranged valve closing members closable in a known manner are.
- Each of the two valve closing elements is made by one each by adjusting means, for example one Valve closing spring (not shown) in the valve closing direction, i.e. in the direction of the outflow pipe 12 or 12a. Support the valve closing springs on the one hand on the valve closing element, on the other a sleeve-shaped end of the magnetic core on itself known and not shown manner.
- the two electromagnets 20, 30 are on the Contact elements can be controlled separately. It is preferred the two plus poles of the coils of the two Electromagnets 20 and 30, respectively, put together on one connection, whereas the two negative poles on separately the other two connections are made.
- the electric one Contact is only made after the valve has been installed manufactured by the separate adapter plug 80, the Shape according to the customer-specific Is designed.
- the valve stroke of the valve for the smaller amount of regeneration gas is adjusted in a manner known per se of the magnetic core 25 set.
- the flow of the large flush volume is due to the narrowest diameter constriction formed as a Laval nozzle in the outflow nozzle 12a defined.
- the stroke of the valve closing element i.e. the working stroke of the corresponding Partial valve and / or the opening cross section larger designed as the smallest diameter in the discharge nozzle 12a. As a result, this can be adjusted for final adjustment Partial valve can be dispensed with.
- the valve described which functions as a Tank vent register valve is met by one Control unit (not shown) with two output stages controlled.
- the large valve also delivers very small pressure differences, for example due to a pressure drop across the air filter of a charged Internal combustion engine in turbo or compressor mode arise, large and sufficiently precisely adjustable Flush volumes.
- In the suction area of this internal combustion engine becomes the valve with the smaller flow rate on controlled so that the regeneration gas flow also at the large one that arises in this operating state Pressure drop can be finely metered. Such a fine dosage is when using known valves extraordinary due to the high flow difficult.
- the two sub-valves can be used individually or together are turned on, in particular from FIG. 2, in which the flow over the differential pressure pe of the two sub-valves with single and common Control is shown emerges.
- the above Valve also points out in terms of its operating noise Advantages compared to known tank ventilation valves on, where the clock noise when idling because of the large working stroke with large flow is perceived as disturbing in many cases.
- the clock noise when idling because of the large working stroke with large flow is perceived as disturbing in many cases.
- the register tank vent valve described above is the operating noise on the smaller part valve, especially smaller because of a small working stroke and less distracting.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
- Fig. 1
- schematisch eine Schnittdarstellung eines von der Erfindung Gebrauch machenden Ventils und
- Fig. 2
- die Durchflusskennlinien des in Fig. 1 dargestellten Ventils und seiner Teilventile.
Claims (7)
- Ventil zum dosierten Einleiten von aus dem Brennstofftank einer Brennkraftmaschine verflüchtigtem Brennstoff in einen Ansaugkanal der Brennkraftmaschine, mit einem zwischen einem Ventilsitzkörper (27) und einem Magnetkern (25) eines Elektromagneten (20) angeordneten Ventilschließglied, das von einem Rückstellmittel in Ventilschließrichtung beaufschlagt und vom Elektromagneten (20) in Ventilöffnungsrichtung betätigbar ist, dadurch gekennzeichnet, dass in einem parallel zu dein Elektromagneten (20) angeordneten Strömungspfad wenigstens ein weiterer Elektromagnet (30) angeordnet ist, durch den ein weiteres, zwischen einem weiteren Ventilsitzkörper (37) und einem weiteren Magnetkern (35) des weiteren Elektromagneten (30) angeordnetes und von einem weiteren Rückstellmittel in Ventilschließrichtung beaufschlagbares Ventilschließglied in Ventilöffnungsrichtung betätigbar ist.
- Ventil nach Anspruch 1, dadurch gekennzeichnet, dass der Ventilsitzkörper (27) und der weitere Ventilsitzkörper (37) einstückig miteinander verbunden sind.
- Ventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Elektromagnet (20) und der weitere Elektromagnet (30) ein Magnetgehäuse (24, 34) oder ein ein Magnetgehäuse bildendes Bauteil aufweisen, die miteinander einstückig verbunden sind.
- Ventil nach Anspruch 3, dadurch, gekennzeichnet, dass die jeweils ein Magnetgehäuse (24, 34) bildenden Bauteile zwei, über einen Verbindungssteg einstückig verbundene U-förmige Bügel sind, welche Spulenkörper des Elektromagneten (20) und des wenigstens einen weiteren Elektromagneten (30) aufnehmen.
- Ventil nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Elektromagnet (20) und der wenigstens eine weitere Elektromagnet (30) über ein gemeinsames Steckerelement (80) elektrisch kontaktierbar sind.
- Ventil nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass ein mit dem Elektromagneten (20) im wesentlichen fluchtender Ausströmstutzen (12) und wenigstens ein weiterer, mit dem wenigstens einen weiteren Elektromagneten (30) im wesentlichen fluchtender weiterer Ausströmstutzen (12a) vorgesehen sind.
- Ventil nach Anspruch 6, dadurch gekennzeichnet, dass der weitere Ausströmstutzen (12a) die Gestalt einer Lavaldüse aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19937722 | 1999-08-10 | ||
DE1999137722 DE19937722A1 (de) | 1999-08-10 | 1999-08-10 | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff in einen Ansaugkanal einer Brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1076171A2 true EP1076171A2 (de) | 2001-02-14 |
EP1076171A3 EP1076171A3 (de) | 2001-10-04 |
Family
ID=7917839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00116821A Withdrawn EP1076171A3 (de) | 1999-08-10 | 2000-08-04 | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff in einen Ansaugkanal einer Brennkraftmaschine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1076171A3 (de) |
DE (1) | DE19937722A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005116439A1 (en) * | 2004-05-24 | 2005-12-08 | Wayne Kenneth Glew | Fuel conditioning apparatus |
US10851736B1 (en) * | 2019-06-03 | 2020-12-01 | Denso International America, Inc. | Dual armature purge valve |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4611384B2 (ja) * | 2005-08-12 | 2011-01-12 | 三菱電機株式会社 | 燃料蒸発ガス処理装置および電磁バルブ装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4244113A1 (de) | 1992-12-24 | 1994-06-30 | Bosch Gmbh Robert | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff in einen Ansaugkanal einer Brennkraftmaschine |
DE19611886A1 (de) | 1996-03-26 | 1997-10-02 | Bosch Gmbh Robert | Magnetventil |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4008266A1 (de) * | 1990-03-15 | 1991-09-19 | Daimler Benz Ag | Elektromagnetisches ventil |
DE4229105C1 (de) * | 1992-09-01 | 1993-09-09 | Fa. Carl Freudenberg, 69469 Weinheim, De | |
US5199456A (en) * | 1992-09-03 | 1993-04-06 | Emerson Electric Co. | Solenoid gas valve |
US5289811A (en) * | 1993-05-10 | 1994-03-01 | General Motors Corporation | Purge control device |
JP3300114B2 (ja) * | 1993-07-22 | 2002-07-08 | マツダ株式会社 | エンジンの蒸発燃料供給装置 |
-
1999
- 1999-08-10 DE DE1999137722 patent/DE19937722A1/de not_active Withdrawn
-
2000
- 2000-08-04 EP EP00116821A patent/EP1076171A3/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4244113A1 (de) | 1992-12-24 | 1994-06-30 | Bosch Gmbh Robert | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff in einen Ansaugkanal einer Brennkraftmaschine |
DE19611886A1 (de) | 1996-03-26 | 1997-10-02 | Bosch Gmbh Robert | Magnetventil |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005116439A1 (en) * | 2004-05-24 | 2005-12-08 | Wayne Kenneth Glew | Fuel conditioning apparatus |
EA009444B1 (ru) * | 2004-05-24 | 2007-12-28 | Уейн Кеннет Глу | Устройство для кондиционирования топлива |
CN100462544C (zh) * | 2004-05-24 | 2009-02-18 | 韦恩·K·格卢 | 燃料调节设备 |
US10851736B1 (en) * | 2019-06-03 | 2020-12-01 | Denso International America, Inc. | Dual armature purge valve |
Also Published As
Publication number | Publication date |
---|---|
EP1076171A3 (de) | 2001-10-04 |
DE19937722A1 (de) | 2001-02-15 |
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