EP1314880A1 - Regeneration valve for a tank ventilation system - Google Patents

Regeneration valve for a tank ventilation system Download PDF

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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
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EP
European Patent Office
Prior art keywords
valve according
flat spring
sealing element
spring
valve
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Granted
Application number
EP02015136A
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German (de)
French (fr)
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EP1314880B1 (en
Inventor
Uwe Meinig
Jörg BITTNER
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Carl Freudenberg KG
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Carl Freudenberg KG
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Publication of EP1314880A1 publication Critical patent/EP1314880A1/en
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    • 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.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

Valve (1) for sealing the face of a sealing seat (4) lying in the lifting direction of a sealing element (2) comprises a magneto inductor (6) and a restoring spring (3). The sealing element is at least partly guided by a leaf spring (5) surrounded by a screen plate (8). The leaf spring and the screen plate form an integral part. <??>Preferred Features: The leaf spring is designed as a meander spring (7). The magneto inductor is cylindrical and is fixed on the leaf spring. The sealing element is attached, preferably vulcanized, onto the center of the leaf spring.

Description

Technisches GebietTechnical field

Die vorliegende Erfindung behandelt ein Ventil zum stirnseitigen Abschluss eines in Hubrichtung des Dichtelements liegenden Dichtsitzes, insbesondere ein Regenerierventil für eine Tankentlüftungsanlage bei Kraftfahrzeugen, mit einem Magnetanker und einer Rückstellfeder, wobei das Dichtelement zumindest teilweise von einer Flachfeder geführt ist, die von einem Siebblech umgeben ist.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.

In einer Reihe von Einsatzgebieten werden elektromagnetische Dosierventile eingesetzt, bei denen der Durchsatz in weiten Bereichen durch Variation des Puls-Pause-Verhältnisses der elektrischen Ansteuerung gesteuert werden kann. Hierzu wird der stirnseitig mit Dichtsitzelastomer versehene Magnetanker, der im Betrieb eine oszillierende Bewegung ausführt, mit variablen Zeitanteilen auf die Gegendichtfläche gepresst beziehungsweise je nach Höhe des gewünschten Durchflusses von der Gegendichtfläche abgehoben. Da diese Ventile im Betrieb sehr hohe Taktzahlen erreichen, muß die Lagerung des Magnetankers hohen Lebensdauerforderungen genügen. Die Ventile sollen beständig gegen aggressive Medien sein, in einem großen Temperaturbereich ihre Dosiergenauigkeit beibehalten, möglichst akustisch nicht wahrnehmbar sein und natürlich auch mit möglichst geringen Kosten hergestellt werden können. Überwiegend werden hier Magnetventile eingesetzt, die eine schnelle Bewegung des Dichtelements zulassen, d.h. deren Ansteuerungsfrequenz mindestens 10 Hz beträgt.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. For this purpose, 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. There these 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.

Stand der TechnikState of the art

In der DE 42 29 110 C 1 ist eine Tankentlüftungsanlage gezeigt, die für den Kraftstofftank vorgesehen ist und in die ein sogenanntes Regenerierventil eingesetzt ist. Dieses Regenerierventil besitzt ein Dichtelement für den Abschluss des Dichtsitzes, das von einer elektrisch angetriebenen Magnetspule betätigt wird. Diese Art von Regenerierventilen hat sich in der Praxis vielfach bewährt. Für die Ausbildung des Dichtsitzes können jedoch nur Elastomere verwendet werden, die mit dem Magnetanker durch Vulkanisation oder Verkleben fest und dauerhaft verbunden werden können. Da eine Reihe von Elastomeren wegen ihrer Zusammensetzung diese Forderung nicht erfüllen, wird nach Wegen gesucht, diese Elastomere wegen ihrer hohen Beständigkeit gegenüber aggressiven Medien und auch ihrer Dauerhaltbarkeit einsetzen zu können.In DE 42 29 110 C 1 a tank ventilation system is shown, for the Fuel tank is provided and in which a so-called regeneration valve is used. This regeneration valve has a sealing element for the Completion of the sealing seat by an electrically driven solenoid is operated. This type of regeneration valve has been put into practice proven many times. For the formation of the sealing seat, however, can only Elastomers are used with the magnet armature through vulcanization or bonding can be firmly and permanently connected. Since a number of elastomers because of their composition does not meet this requirement ways are sought, these elastomers because of their high Resistance to aggressive media and also their durability to be able to use.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt deshalb die Aufgaben zugrunde, eine Einsatzmöglichkeit für Elastomere bei Regenerierventilen zu finden, unabhängig von ihrer Zusammensetzung und ihrer Eigenschaft bezüglich der Verbindung zum Magnetanker. 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.

Die Lösung der gestellten Aufgabe wird mit den Merkmalen des Anspruchs 1 erreicht. Die Unteransprüche 2 bis 18 geben vorteilhafte Ausgestaltungen der Erfindung wieder.The solution of the problem is with the features of claim 1 reached. The sub-claims 2 to 18 give advantageous embodiments of the Invention again.

Bei der erfindungsgemäßen Ausgestaltung des Ventils wird ein neuer Lösungsweg beschritten, in dem die Flachfeder und das Siebblech als ein integrales Teil ausgebildet sind. Das Dichtelement wird bei dieser Ausgestaltung von einer Flachfeder gehalten, die ihrerseits mit dem Magnetanker verbunden ist, wobei der Magnetanker entgegen der Kraft einer Rückstellfeder das Dichtelement in seiner Hubrichtung betätigt. Die Flachfeder ist in ihrem Zentrum mit einer Perforation ausgestattet, so dass während des Vulkanisiervorgangs das verwendete Elastomer zu beiden Seiten der Flachfeder einfließen kann, so dass eine formschlüssige Verbindung zwischen dem Dichtelement und der Flachfeder entsteht.In the embodiment of the valve according to the invention, 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.

Der Magnetanker ist direkt an der Flachfeder angeschlossen und hierfür zylinderförmig ausgebildet, so dass er das Dichtelement radial umfasst.The magnetic armature is connected directly to the flat spring and for this cylindrical, so that it encloses the sealing element radially.

In weiterer Ausgestaltung der Flachfeder ist dieselbe radial außerhalb des Magnetankers als Mäanderfeder ausgebildet. Hierdurch erhält das Dichtelement mit dem Magnetanker eine hohe Elastizität.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.

Das Siebblech wird in den Strömungsweg des Strömungsmediums angeordnet und beispielsweise von konzentrischen Dichtungen eingefasst. Die Perforation des Siebblechs und der Flachfeder wird gleichzeitig durch Ausstanzen oder auch Ausätzen hergestellt. Bei Verwendung des Siebblechs wird das Ventilgehäuse beispielsweise mit zwei konzentrisch angeordneten Ringkanälen ausgestattet, die der Führung des Strömungsmediums dienen. Dabei ist beispielsweise der äußere Ringkanal durch das Siebblech abgedeckt. 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. When using the screen plate, 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.

In seiner Mitte hat das Ventilgehäuse eine Lavaldüse, deren Mündung den Dichtsitz bildet.In the middle of the valve housing has a Laval nozzle, the mouth of which Seals seat.

Kurzbeschreibung der ZeichnungBrief description of the drawing

Anhand eines in der Zeichnung dargestellten Ausführungsbeispieles wird die Erfindung nachstehend näher erläutert.Based on an embodiment shown in the drawing Invention explained in more detail below.

Es zeigt

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.
It shows
Fig. 1
the valve in longitudinal section,
Fig. 2
a plan view of the flat spring with the sealing element,
Fig. 3
the flat spring with sealing element and magnetic armature in an enlarged view in cross section and
4 and 5
a further embodiment of the valve in longitudinal section or in cross section.

Ausführung der ErfindungImplementation of the invention

Das in der Figur 1 im Querschnitt gezeigte Ventil 1 ist als Regenerierventil ausgebildet und mit dem Dichtelement 2 versehen. Das Dichtelement 2 wird durch eine als Schraubenfeder ausgebildete Rückstellfeder 3 an den Dichtsitz 4 gedrückt. Das Dichtelement 2 wird von der Flachfeder 5 gehalten, an der der Magnetanker 6 befestigt ist. Radial außerhalb des zylinderförmig ausgebildeten Magnetankers 6 ist die Flachfeder 5 als Mäanderfeder 7 ausgebildet. Die Mäanderfeder 7 ist ihrerseits von einem konzentrischen Siebblech 8 umgeben. Im Ausführungsbeispiel stellen alle drei Teile Siebblech 8, Mäanderfeder 7 und das Mittelteil der Flachfeder 5, an dem das Dichtelement 2 befestigt ist, ein integrales Teil dar. Möglich ist natürlich auch beispielsweise das Siebblech 8 als gesondertes Teil herzustellen. Die Befestigung des Flachblechs 5 erfolgt über seinen äußeren Rand, der ggf. mit einer Dichtung 9 versehen ist. Die Dichtung 9 wird von zwei entsprechend ausgebildeten Teilen des Ventilgehäuses erfasst. Bei Einsatz eines Siebblechs 8 in den Strömungsweg des Strömungsmediums wird das Ventilgehäuse 10 mit beispielsweise zwei konzentrisch angeordneten Ringkanälen 11 und 12 für das Strömungsmedium ausgestattet. Das über den Anschluss 13 einströmende Strömungsmedium gelangt zunächst in den Ringkanal 11 und von dort durch das Siebblech 8 und den darüber befindlichen Raum 14 und die Mäanderfeder 7 in den inneren Ringkanal 12. Wenn das Dichtelement 2 vom Dichtsitz 4 abhebt, strömt das Medium in die Lavaldüse 15 und von dort in eine entsprechende Zuleitung zum Ansaugrohr der Verbrennungskraftmaschine.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. In the exemplary embodiment, all three parts of the screen plate 8, meander spring 7 and the middle part of the flat spring 5, on which the sealing element 2 is fastened integral part. Of course, 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. When using a screen plate 8 in the flow path of the 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. When 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.

In der Figur 2 ist eine Draufsicht auf die Flachfeder 5 dargestellt. Im Zentrum der Flachfeder 5 befindet sich das Dichtelement 2. Dieses Dichtelement ist von dem Magnetanker 6 umgeben, der an der Flachfeder 5 befestigt ist. Dieser Teil der Flachfeder 5, welche das Dichtelement 2 und den Magnetanker 6 aufnimmt, ist von der Mäanderfeder 7 der Flachfeder 5 umgeben. An die Mäanderfeder 7 schließt das Siebblech 8 an, das seinerseits von den beiden konzentrischen Dichtungen 9 und 16 begrenzt ist.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.

In der Figur 3 ist die Flachfeder 5 mit Dichtelement 2, Magnetanker 6, Mäanderfeder 7 und Siebblech 8 stark vergrößert im Schnitt dargestellt. Die Flachfeder 5 ist in ihrem Zentrum beispielsweise mit einer Perforation 17 versehen, die es ermöglicht, dass bei dem Vulkanisiervorgang das Elastomer für das Dichtelement 2 zu beiden Seiten der Flachfeder 5 fließen kann. Das Dichtelement 2 ist auf seiner Vorderseite, die am Dichtsitz 4 zur Anlage kommt, mit einer ringförmig ausgebildeten Erhebung 18 versehen. Auf der Rückseite hat das Dichtelement 2 die ringförmig ausgebildeten Justier- und Endanschläge 19 und 20. Das Siebblech 8 ist von den konzentrischen Dichtungen 9 und 16 eingefasst.In Figure 3, 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.

In den Figuren 4 und 5 ist eine andere mögliche Ausführungsform des Ventils 1 gezeigt. Das Dichtelement 2 wird durch die Rückstellfeder 3 in Richtung auf den Dichtsitz 4 gedrückt. Die Flachfeder 5 ist, wie aus der Figur 5 ersichtlich, als Rahmenfeder ausgebildet. Die Figur 5 ist ein Schnitt durch das Ventil 1 gemäß der Linie A-A aus der Figur 4. Das Siebblech 8 ist seitlich neben der Rahmenfeder angebracht.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.

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.Valve (1) for the end closure of a sealing seat (4) lying in the stroke direction of the sealing element (2), in particular a regeneration valve for a tank ventilation system in motor vehicles with a magnet armature and a return spring, the sealing element (2) being at least partially guided by a flat spring (5) which is surrounded by a sieve plate (8), characterized in that the flat spring (5) and the sieve plate (8) form an integral part. Ventil nach Anspruch 1, dadurch gekennzeichnet, dass die Flachfeder (5) als Mäanderfeder (7) ausgebildet ist.Valve according to claim 1, characterized in that the flat spring (5) is designed as a meandering spring (7). Ventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Magnetanker (6) an der Flachfeder (5) befestigt ist.Valve according to claim 1 or 2, characterized in that the magnet armature (6) is attached to the flat spring (5). Ventil nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass der Magnetanker (6) zylinderförmig ausgebildet ist.Valve according to claim 1 to 3, characterized in that the magnet armature (6) is cylindrical. Ventil nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass das Dichtelement (2) im Zentrum der Flachfeder (5) angebracht ist.Valve according to claim 1 to 4, characterized in that the sealing element (2) is attached in the center of the flat spring (5). Ventil nach Anspruch 1 bis 5, dadurch gekennzeichnet, dass das Dichtelement (2) an die Flachfeder (5) anvulkanisiert ist.Valve according to claim 1 to 5, characterized in that the sealing element (2) is vulcanized onto the flat spring (5). 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. Valve according to claim 1 to 5, characterized in that the center of the flat spring (5) has a perforation (17) and the sealing element (2) is vulcanized through the perforation (17) penetrating on both sides of the flat spring (5). 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.Valve according to claims 1 to 7, characterized in that the sealing element (2) is provided on its front side opposite the sealing seat (4) with an annular elevation (18). 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.Valve according to Claims 1 to 8, characterized in that the sealing element (2) is provided on its rear side with ring-shaped adjustment and end stops (19, 20) projecting from the surface of the sealing element (2). Ventil nach Anspruch 1 bis 9, dadurch gekennzeichnet, dass das Siebblech (8) die Flachfeder (5) konzentrisch umgibt.Valve according to claim 1 to 9, characterized in that the screen plate (8) concentrically surrounds the flat spring (5). 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.Valve according to claims 1 to 10, characterized in that the screen plate (8) is arranged in the flow path of the flow medium and is surrounded by concentric seals (9, 16). Ventil nach Anspruch 1 bis 11, dadurch gekennzeichnet, dass die Flachfeder (5) und die Perforation (17) des Siebblechs (8) durch Ausstanzen hergestellt sind.Valve according to claim 1 to 11, characterized in that the flat spring (5) and the perforation (17) of the screen plate (8) are made by punching. Ventil nach Anspruch 1 bis 11, dadurch gekennzeichnet, dass die Flachfeder (5) und die Perforation (17) des Siebblechs (8) durch Ausätzen hergestellt sind.Valve according to claim 1 to 11, characterized in that the flat spring (5) and the perforation (17) of the screen plate (8) are made by etching. Ventil nach Anspruch 1 bis 13, dadurch gekennzeichnet, dass das Ventilgehäuse 10 zwei konzentrisch angeordnete Ringkanäle (11, 12) für die Führung des Strömungsmediums hat. Valve according to claim 1 to 13, characterized in that the valve housing 10 has two concentrically arranged ring channels (11, 12) for guiding the flow medium. Ventil nach Anspruch 1 bis 14, dadurch gekennzeichnet, dass der äußere Ringkanal (11) durch das Siebblech (8) abgedeckt ist.Valve according to claim 1 to 14, characterized in that the outer ring channel (11) is covered by the screen plate (8). Ventil nach Anspruch 1 bis 15, dadurch gekennzeichnet, dass der innere Ringkanal (12) von der Mäanderfeder (7) abgedeckt ist.Valve according to claim 1 to 15, characterized in that the inner ring channel (12) is covered by the meander spring (7). 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.Valve according to claims 1 to 16, characterized in that the valve housing (10) has in its center a Laval nozzle (15), the mouth of which forms the sealing seat (4).
EP02015136A 2001-11-15 2002-07-06 Regeneration valve for a tank ventilation system Expired - Lifetime EP1314880B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10156231 2001-11-15
DE10156231A DE10156231C1 (en) 2001-11-15 2001-11-15 Valve used as a regeneration valve for a tank ventilation system of a motor vehicle comprises a magneto inductor and a restoring spring

Publications (2)

Publication Number Publication Date
EP1314880A1 true EP1314880A1 (en) 2003-05-28
EP1314880B1 EP1314880B1 (en) 2004-11-17

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ID=7705922

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Application Number Title Priority Date Filing Date
EP02015136A Expired - Lifetime EP1314880B1 (en) 2001-11-15 2002-07-06 Regeneration valve for a tank ventilation system

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EP (1) EP1314880B1 (en)
DE (2) DE10156231C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3715961B2 (en) 2002-11-12 2005-11-16 三菱電機株式会社 solenoid valve
DE102017111696A1 (en) * 2017-05-30 2018-12-06 Bayerische Motoren Werke Aktiengesellschaft Fluid valve of a charge air duct

Citations (3)

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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

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Publication number Priority date Publication date Assignee Title
DE3834444A1 (en) * 1988-10-10 1990-04-12 Mesenich Gerhard ELECTROMAGNETIC INJECTION VALVE WITH DIAPHRAGM SPRING
DE4229110C1 (en) * 1992-09-01 1993-10-07 Freudenberg Carl Fa Device for the temporary storage and metered feeding of volatile fuel components located in the free space of a tank system into the intake pipe of an internal combustion engine
DE4419446C2 (en) * 1994-06-03 1998-11-05 Staiger Steuerungstech Valve
DE19534396A1 (en) * 1995-09-16 1997-03-20 Bosch Gmbh Robert Valve element for fuel-injection solenoid valve with manufacturing method
JP3946368B2 (en) * 1998-12-03 2007-07-18 三菱電機株式会社 Fuel evaporative emission control device

Patent Citations (3)

* Cited by examiner, † Cited by third party
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

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DE10156231C1 (en) 2003-04-30
EP1314880B1 (en) 2004-11-17

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