EP1314880B1 - Soupape de régénération pour un system d'aération de réservoir - Google Patents

Soupape de régénération pour un system d'aération de réservoir Download PDF

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Publication number
EP1314880B1
EP1314880B1 EP02015136A EP02015136A EP1314880B1 EP 1314880 B1 EP1314880 B1 EP 1314880B1 EP 02015136 A EP02015136 A EP 02015136A EP 02015136 A EP02015136 A EP 02015136A EP 1314880 B1 EP1314880 B1 EP 1314880B1
Authority
EP
European Patent Office
Prior art keywords
valve according
flat spring
sealing element
valve
spring
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.)
Expired - Lifetime
Application number
EP02015136A
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German (de)
English (en)
Other versions
EP1314880A1 (fr
Inventor
Uwe Meinig
Jörg BITTNER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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Filing date
Publication date
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP1314880A1 publication Critical patent/EP1314880A1/fr
Application granted granted Critical
Publication of EP1314880B1 publication Critical patent/EP1314880B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)

Claims (17)

  1. Soupape (1) pour la fermeture côté frontal d'un siège d'étanchéité (4) disposé dans le sens de levage de l'élément d'étanchéité (2), en particulier une soupape de régénération pour une installation de purge de réservoir sur des véhicules automobiles avec une armature d'aimant et un ressort de rappel, l'élément d'étanchéité (2) étant guidé au moins partiellement par un ressort plat (5), qui est entouré par une tôle de tamisage (8), caractérisée en ce que le ressort plat (5) et la tôle de tamisage (8) forment une pièce intégrale.
  2. Soupape selon la revendication 1, caractérisée en ce que le ressort plat (5) est conçu comme un ressort sinueux (7).
  3. Soupape selon la revendication 1 ou 2, caractérisée en ce que l'armature d'aimant (6) est fixée sur le ressort plat (5).
  4. Soupape selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'armature d'aimant (6) est conçue avec une forme cylindrique.
  5. Soupape selon l'une quelconque des revendications 1 à 4, caractérisée en ce que l'élément d'étanchéité (2) est placé au centre du ressort plat (5).
  6. Soupape selon l'une quelconque des revendications 1 à 5, caractérisée en ce que l'élément d'étanchéité (2) est prévulcanisé sur le ressort plat (5).
  7. Soupape selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le centre du ressort plat (5) a une perforation (17) et l'élément d'étanchéité (2) est prévulcanisé sur les deux côtés du ressort plat (5) en pénétrant la perforation (17).
  8. Soupape selon l'une quelconque des revendications 1 à 7, caractérisée en ce que l'élément d'étanchéité (2) est pourvu, sur sa face avant par rapport au siège d'étanchéité (4), d'une surélévation (18) de conception annulaire.
  9. Soupape selon l'une quelconque des revendications 1 à 8, caractérisée en ce que l'élément d'étanchéité (2) est pourvu sur sa face arrière de butées d'ajustage et de butées finales (19, 20) qui ont une conception annulaire et débordent à la façon d'un cône de la surface de l'élément d'étanchéité (2).
  10. Soupape selon l'une quelconque des revendications 1 à 9, caractérisée en ce que la tôle de tamisage (8) entoure le ressort plat (5) de façon concentrique.
  11. Soupape selon l'une quelconque des revendications 1 à 10, caractérisée en ce que la tôle de tamisage (8) est disposée dans le trajet d'écoulement du milieu d'écoulement et est entourée de joints (9, 16) concentriques.
  12. Soupape selon l'une quelconque des revendications 1 à 11, caractérisée en ce que le ressort plat (5) et la perforation (17) de la tôle de tamisage (8) sont fabriqués par découpage à la matrice.
  13. Soupape selon l'une quelconque des revendications 1 à 11, caractérisée en ce que le ressort plat (5) et la perforation (17) de la tôle de tamisage (8) sont fabriqués par gravure chimique.
  14. Soupape selon l'une quelconque des revendications 1 à 13, caractérisée en ce que la cage de soupape (10) a deux canaux annulaires (11, 12) disposés de façon concentrique pour le guidage de l'agent d'écoulement.
  15. Soupape selon la revendication 14, caractérisée en ce que le canal annulaire (11 ) extérieur est recouvert par la tôle de tamisage (8).
  16. Soupape selon l'une quelconque des revendications 14 à 15, caractérisée en ce que le canal annulaire (12) intérieur est recouvert par le ressort sinueux (7).
  17. Soupape selon l'une quelconque des revendications 1 à 16, caractérisée en ce que la cage de soupape (10) a en son centre un Laval-injecteur (15), dont l'orifice forme le siège d'étanchéité (4).
EP02015136A 2001-11-15 2002-07-06 Soupape de régénération pour un system d'aération de réservoir Expired - Lifetime EP1314880B1 (fr)

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 EP1314880A1 (fr) 2003-05-28
EP1314880B1 true EP1314880B1 (fr) 2004-11-17

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Application Number Title Priority Date Filing Date
EP02015136A Expired - Lifetime EP1314880B1 (fr) 2001-11-15 2002-07-06 Soupape de régénération pour un system d'aération de réservoir

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108979903A (zh) * 2017-05-30 2018-12-11 弗兰科希工业管道两合公司 增压空气引导部的流体阀

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19534396A1 (de) * 1995-09-16 1997-03-20 Bosch Gmbh Robert Magnetventil, insbesondere Kraftstoffeinspritzventil, und Verfahren zur Herstellung einer Ventileinheit für ein Magnetventil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834444A1 (de) * 1988-10-10 1990-04-12 Mesenich Gerhard Elektromagnetisches einspritzventil mit membranfeder
DE3844453C2 (de) * 1988-12-31 1996-11-28 Bosch Gmbh Robert Ventil zum dosierten Zumischen von verflüchtigtem Kraftstoff zum Kraftstoffluftgemisch einer Brennkraftmaschine
DE4023044A1 (de) * 1990-07-20 1992-01-23 Bosch Gmbh Robert Ventil zum dosierten zumischen von verfluechtigtem kraftstoff zum kraftstoffluftgemisch einer brennkraftmaschine
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
DE19721562A1 (de) * 1997-05-23 1998-11-26 Bosch Gmbh Robert Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19534396A1 (de) * 1995-09-16 1997-03-20 Bosch Gmbh Robert Magnetventil, insbesondere Kraftstoffeinspritzventil, und Verfahren zur Herstellung einer Ventileinheit für ein Magnetventil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108979903A (zh) * 2017-05-30 2018-12-11 弗兰科希工业管道两合公司 增压空气引导部的流体阀

Also Published As

Publication number Publication date
EP1314880A1 (fr) 2003-05-28
DE10156231C1 (de) 2003-04-30
DE50201558D1 (de) 2004-12-23

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