EP1314880A1 - Regenerierventil für eine Tankentlüftungsanlage - Google Patents
Regenerierventil für eine Tankentlüftungsanlage Download PDFInfo
- Publication number
- EP1314880A1 EP1314880A1 EP02015136A EP02015136A EP1314880A1 EP 1314880 A1 EP1314880 A1 EP 1314880A1 EP 02015136 A EP02015136 A EP 02015136A EP 02015136 A EP02015136 A EP 02015136A EP 1314880 A1 EP1314880 A1 EP 1314880A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve according
- flat spring
- sealing element
- spring
- valve
- 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
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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
- 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
Definitions
- the present invention deals with a valve for the end closure a sealing seat lying in the stroke direction of the sealing element, in particular a regeneration valve for a tank ventilation system in motor vehicles, with a magnetic armature and a return spring, the sealing element at least is partially guided by a flat spring, which is supported by a screen plate is surrounded.
- Electromagnetic metering valves are used in a number of areas used in which the throughput in wide ranges by varying the Pulse-pause ratio of the electrical control can be controlled can.
- the magnet armature provided on the face with sealing pin elastomer, which performs an oscillating movement in operation, with variable Percentage of time pressed onto the counter-sealing surface or depending on the height of the desired flow rate from the counter-sealing surface.
- the valves must reach very high cycle rates during operation, the storage of the magnet armature meet high durability requirements.
- the valves should be resistant to aggressive media in a wide temperature range maintain their dosing accuracy, if possible acoustically imperceptible be and of course also manufactured at the lowest possible cost can be. Solenoid valves are predominantly used here, one allow fast movement of the sealing element, i.e. their control frequency is at least 10 Hz.
- the invention is therefore based on the objects, an application for elastomers found in regeneration valves, regardless of their Composition and its property with regard to the connection to the Armature.
- a new one Solution followed, in which the flat spring and the screen plate as one integral part are formed.
- the sealing element is in this embodiment held by a flat spring, which in turn with the magnet armature is connected, the magnet armature counter to the force of a return spring actuated the sealing element in its stroke direction.
- the flat spring is in yours Center with a perforation so that during the vulcanization process the elastomer used on both sides of the flat spring can flow in, so that a positive connection between the Sealing element and the flat spring is created.
- the magnetic armature is connected directly to the flat spring and for this cylindrical, so that it encloses the sealing element radially.
- flat spring In a further embodiment of the flat spring is the same radially outside of Magnet armature designed as a meander spring. This gives the sealing element high elasticity with the magnetic anchor.
- the screen plate is placed in the flow path of the flow medium and bordered for example by concentric seals.
- the perforation of the screen plate and the flat spring is made simultaneously by punching out or also produced etching.
- the valve housing for example with two concentrically arranged ring channels equipped, which serve to guide the flow medium. It is for example, the outer ring channel covered by the screen plate.
- valve housing In the middle of the valve housing has a Laval nozzle, the mouth of which Seals seat.
- the valve 1 shown in cross section in FIG. 1 is a regeneration valve trained and provided with the sealing element 2.
- the sealing element 2 is by a return spring 3 designed as a helical spring to the sealing seat 4 pressed.
- the sealing element 2 is held by the flat spring 5, on which the Magnetic armature 6 is attached.
- Radially outside of the cylindrical shape Magnet armature 6, the flat spring 5 is designed as a meander spring 7.
- the Meander spring 7 is in turn surrounded by a concentric screen plate 8.
- the screen plate 8 is of course also possible to manufacture as a separate part.
- the flat plate 5 is fastened over its outer edge, which is optionally provided with a seal 9.
- the Seal 9 is made of two appropriately designed parts of the valve housing detected.
- the flow medium becomes the valve housing 10 with, for example, two concentrically arranged ring channels 11 and 12 for the flow medium fitted.
- the flow medium flowing in via connection 13 first enters the ring channel 11 and from there through the screen plate 8 and the room 14 above and the meander spring 7 in the inner Ring channel 12.
- the sealing element 2 lifts off the sealing seat 4, it flows Medium into the Laval nozzle 15 and from there into a corresponding supply line to Intake pipe of the internal combustion engine.
- FIG. 2 shows a top view of the flat spring 5.
- Downtown the flat spring 5 is the sealing element 2. This sealing element is from surrounded the armature 6, which is attached to the flat spring 5. this part the flat spring 5, which the sealing element 2 and the armature 6th picks up, is surrounded by the meandering spring 7 of the flat spring 5.
- To the Meander spring 7 connects the screen plate 8, which in turn is one of the two concentric seals 9 and 16 is limited.
- the flat spring 5 with sealing element 2, magnet armature 6, Meander spring 7 and sieve plate 8 shown greatly enlarged in section.
- the Flat spring 5 is at its center, for example, with a perforation 17th provided that the elastomer during the vulcanization process for the sealing element 2 can flow on both sides of the flat spring 5.
- the Sealing element 2 is on its front, which comes into contact with the sealing seat 4, provided with a ring-shaped elevation 18. On the back side the sealing element 2 has the ring-shaped adjustment and End stops 19 and 20.
- the screen plate 8 is of the concentric Seals 9 and 16 bordered.
- FIGS. 4 and 5 Another possible embodiment of the valve 1 is shown in FIGS. 4 and 5 shown.
- the sealing element 2 is in the direction of by the return spring 3 the sealing seat 4 pressed.
- the flat spring 5 is, as can be seen from FIG. 5, designed as a frame spring.
- FIG. 5 is a section through the valve 1 according to line A-A from Figure 4.
- the screen plate 8 is laterally next to the Frame spring attached.
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
- das Ventil im Längsschnitt,
- Fig. 2
- eine Draufsicht auf die Flachfeder mit dem Dichtelement,
- Fig. 3
- die Flachfeder mit Dichtelement und Magnetanker in vergrößerter Darstellung im Querschnitt und die
- Fig. 4 und 5
- eine weitere Ausbildung des Ventils im Längsschnitt bzw. im Querschnitt.
Claims (17)
- Ventil (1) zum stirnseitigen Abschluss eines in Hubrichtung des Dichtelements (2) liegenden Dichtsitzes (4), insbesondere Regenerierventil für eine Tankentlüftungsanlage bei Kraftfahrzeugen mit einem Magnetanker und einer Rückstellfeder, wobei das Dichtelement (2) zumindest teilweise von einer Flachfeder (5) geführt ist, die von einem Siebblech (8) umgeben ist, dadurch gekennzeichnet, dass die Flachfeder (5) und das Siebblech (8) ein integrales Teil bilden.
- Ventil nach Anspruch 1, dadurch gekennzeichnet, dass die Flachfeder (5) als Mäanderfeder (7) ausgebildet ist.
- Ventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Magnetanker (6) an der Flachfeder (5) befestigt ist.
- Ventil nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass der Magnetanker (6) zylinderförmig ausgebildet ist.
- Ventil nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass das Dichtelement (2) im Zentrum der Flachfeder (5) angebracht ist.
- Ventil nach Anspruch 1 bis 5, dadurch gekennzeichnet, dass das Dichtelement (2) an die Flachfeder (5) anvulkanisiert ist.
- Ventil nach Anspruch 1 bis 5, dadurch gekennzeichnet, dass das Zentrum der Flachfeder (5) eine Perforation (17) hat und das Dichtelement (2) die Perforation (17) durchdringend an beiden Seiten der Flachfeder (5) anvulkanisiert ist.
- Ventil nach Anspruch 1 bis 7, dadurch gekennzeichnet, dass das Dichtelement (2) auf seiner Vorderseite gegenüber dem Dichtsitz (4) mit einer ringförmig ausgebildeten Erhebung (18) versehen ist.
- Ventil nach Anspruch 1 bis 8, dadurch gekennzeichnet, dass das Dichtelement (2) auf seiner Rückseite mit ringförmig ausgebildeten und kegelartig von der Oberfläche des Dichtelements (2) hervorstehenden Justier- und Endanschlägen (19, 20) versehen ist.
- Ventil nach Anspruch 1 bis 9, dadurch gekennzeichnet, dass das Siebblech (8) die Flachfeder (5) konzentrisch umgibt.
- Ventil nach Anspruch 1 bis 10, dadurch gekennzeichnet, dass das Siebblech (8) im Strömungsweg des Strömungsmediums angeordnet ist und von konzentrischen Dichtungen (9, 16) eingefasst ist.
- Ventil nach Anspruch 1 bis 11, dadurch gekennzeichnet, dass die Flachfeder (5) und die Perforation (17) des Siebblechs (8) durch Ausstanzen hergestellt sind.
- Ventil nach Anspruch 1 bis 11, dadurch gekennzeichnet, dass die Flachfeder (5) und die Perforation (17) des Siebblechs (8) durch Ausätzen hergestellt sind.
- Ventil nach Anspruch 1 bis 13, dadurch gekennzeichnet, dass das Ventilgehäuse 10 zwei konzentrisch angeordnete Ringkanäle (11, 12) für die Führung des Strömungsmediums hat.
- Ventil nach Anspruch 1 bis 14, dadurch gekennzeichnet, dass der äußere Ringkanal (11) durch das Siebblech (8) abgedeckt ist.
- Ventil nach Anspruch 1 bis 15, dadurch gekennzeichnet, dass der innere Ringkanal (12) von der Mäanderfeder (7) abgedeckt ist.
- Ventil nach Anspruch 1 bis 16, dadurch gekennzeichnet, dass das Ventilgehäuse (10) in seiner Mitte eine Lavaldüse (15) hat, deren Mündung den Dichtsitz (4) bildet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10156231 | 2001-11-15 | ||
DE10156231A DE10156231C1 (de) | 2001-11-15 | 2001-11-15 | Ventil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1314880A1 true EP1314880A1 (de) | 2003-05-28 |
EP1314880B1 EP1314880B1 (de) | 2004-11-17 |
Family
ID=7705922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02015136A Expired - Lifetime EP1314880B1 (de) | 2001-11-15 | 2002-07-06 | Regenerierventil für eine Tankentlüftungsanlage |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1314880B1 (de) |
DE (2) | DE10156231C1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3715961B2 (ja) | 2002-11-12 | 2005-11-16 | 三菱電機株式会社 | 電磁弁 |
DE102017111696A1 (de) * | 2017-05-30 | 2018-12-06 | Bayerische Motoren Werke Aktiengesellschaft | Fluidventil einer Ladeluftführung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4986246A (en) * | 1988-12-31 | 1991-01-22 | Robert Bosch Gmbh | Valve for the metered admixture of volatilized fuel to the fuel-air mixture of an internal combustion engine |
US5178116A (en) * | 1990-07-20 | 1993-01-12 | Robert Bosch Gmbh | Valve for metered admixing of volatilized fuel to the fuel/air mixture of an internal combustion engine |
US6149126A (en) * | 1997-05-23 | 2000-11-21 | Robert Bosch Gmbh | Valve for the metered introduction of evaporated fuel |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3834444A1 (de) * | 1988-10-10 | 1990-04-12 | Mesenich Gerhard | Elektromagnetisches einspritzventil mit membranfeder |
DE4229110C1 (de) * | 1992-09-01 | 1993-10-07 | Freudenberg Carl Fa | Vorrichtung zum vorübergehenden Speichern und dosierten Einspeisen von im Freiraum einer Tankanlage befindlichen flüchtigen Kraftstoffbestandteilen in das Ansaugrohr einer Verbrennungskraftmaschine |
DE4419446C2 (de) * | 1994-06-03 | 1998-11-05 | Staiger Steuerungstech | Ventil |
DE19534396A1 (de) * | 1995-09-16 | 1997-03-20 | Bosch Gmbh Robert | Magnetventil, insbesondere Kraftstoffeinspritzventil, und Verfahren zur Herstellung einer Ventileinheit für ein Magnetventil |
JP3946368B2 (ja) * | 1998-12-03 | 2007-07-18 | 三菱電機株式会社 | 燃料蒸発ガス排出抑止装置 |
-
2001
- 2001-11-15 DE DE10156231A patent/DE10156231C1/de not_active Expired - Lifetime
-
2002
- 2002-07-06 EP EP02015136A patent/EP1314880B1/de not_active Expired - Lifetime
- 2002-07-06 DE DE50201558T patent/DE50201558D1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4986246A (en) * | 1988-12-31 | 1991-01-22 | Robert Bosch Gmbh | Valve for the metered admixture of volatilized fuel to the fuel-air mixture of an internal combustion engine |
US5178116A (en) * | 1990-07-20 | 1993-01-12 | Robert Bosch Gmbh | Valve for metered admixing of volatilized fuel to the fuel/air mixture of an internal combustion engine |
US6149126A (en) * | 1997-05-23 | 2000-11-21 | Robert Bosch Gmbh | Valve for the metered introduction of evaporated fuel |
Also Published As
Publication number | Publication date |
---|---|
DE10156231C1 (de) | 2003-04-30 |
DE50201558D1 (de) | 2004-12-23 |
EP1314880B1 (de) | 2004-11-17 |
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