EP0230464A1 - Magnetic valve - Google Patents

Magnetic valve

Info

Publication number
EP0230464A1
EP0230464A1 EP86904777A EP86904777A EP0230464A1 EP 0230464 A1 EP0230464 A1 EP 0230464A1 EP 86904777 A EP86904777 A EP 86904777A EP 86904777 A EP86904777 A EP 86904777A EP 0230464 A1 EP0230464 A1 EP 0230464A1
Authority
EP
European Patent Office
Prior art keywords
valve
valve member
magnet
towing
armature
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Withdrawn
Application number
EP86904777A
Other languages
German (de)
French (fr)
Inventor
Christoph Gibas
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.)
Flutec Fluidtechnische Geraete GmbH
Original Assignee
Flutec Fluidtechnische Geraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Flutec Fluidtechnische Geraete GmbH filed Critical Flutec Fluidtechnische Geraete GmbH
Publication of EP0230464A1 publication Critical patent/EP0230464A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F2007/1684—Armature position measurement using coils

Definitions

  • the invention relates to a solenoid valve according to the preamble of claim 1.
  • the valve member is designed in the manner of a disk, so that it does not need to be aligned with the axis of the stationary seat part of the valve for a tight fit on the seat part of the solenoid valve.
  • the closing spring is accommodated in a bore in the armature. This spring serves to support a support bolt engaging in the magnet armature (DE-GM 69 04 282).
  • Another known solenoid valve has a valve member with conical seat parts arranged in the region of its ends, the tips of which face one another.
  • the shaft connecting the conical seat parts to one another is guided in a bore.
  • a spring is provided, which serves to exert a closing force on the adjacent cone part seated on its valve seat (DE-0S 27 40 646).
  • Another known solenoid valve with an adjustable connection between the magnet armature and the valve member has a support ball. (DE-0S 22 08 183).
  • Yet another known solenoid valve has an adhesive disc between the magnet armature and the pole core (DE-AS 12 49 043).
  • the object of the present invention based on the solenoid valve mentioned in the first place, is to achieve a tight fit of the valve member having a conical seat part when the valve is closed.
  • This object is achieved according to the invention by the features in the characterizing part of claim 1.
  • the special design of the towing connection ensures a tight fit of the valve member on its valve seat, since the valve member can adjust axially and radially.
  • the connection is simple in nature and can be established with little effort.
  • the magnet armature can be guided in the magnet housing with relatively little play.
  • valve member having a conical seat part In order to enable the valve member having a conical seat part to fit well on the stationary seat part, it is customary to give the valve member, which is firmly connected to the magnet armature, a radial setting possibility. With such an adjustment option, however, a tight closing of the valve member cannot be achieved (DE-GM 69 04 282).
  • the features of claim 2 are directed to a preferred connection between the valve member and the armature.
  • the features of claim 3 reduce the friction between the magnet armature and the valve member with mutual radial movement.
  • An actuating magnet 1 has an excitation winding 2 which is wound on a coil 4.
  • Housing rings 5 and 6 are arranged to the side of the coil 4.
  • the outside of the excitation winding 2 and the circumference of each housing ring 5, 6 is covered by a sheath 7 made of plastic, in which the parts surrounding it are embedded, via a projection in the sheath 7 there are two plug connectors 8 and a protective conductor connection 9, which are connected with the excitation winding are electrically connected.
  • a Polker ⁇ 10 engages from the right side in the drawing, on the end of which projects beyond the coil 4, a retaining nut 11 is screwed on.
  • a sealing ring 12 is arranged between the holding nut 11 and the housing ring 6.
  • a clamping plate i3 surrounding the sealing ring 12 is clamped between the holding nut 11 and the housing ring 7.
  • a magnet housing 14 protrudes into the coil 4 from the left side in the drawing, which with its shoulder, which is located on a polygon, abuts the housing ring 5 and has an external thread at its end, which is averted from the pole core 10.
  • the pole core 10 is connected to the magnet housing 14 by means of a connecting ring 16 which surrounds the spacer ring and is made of a molten metal, in particular brass solder. bound.
  • the rings 15 and 16 are made of non-magnetic material.
  • the magnet housing 14 is hollow and the pole core 10 has a flat blind hole in each case for receiving a magnet armature 17 which is guided in the magnet housing 14 and in the pole core 10 with little radial play.
  • the magnet housing 14 and the pole core 10 form a pressure-tight housing for the magnet armature 17.
  • This has longitudinal ribs 18 and can move along the magnet housing 14.
  • a bolt 19, made of non-magnetic material is accommodated in the drawing from right to left, which pin is located between the magnet armature 17 and the base of the pole core 10 has arranged collar 20 to prevent magnetic sticking of the magnetic armature 17 to the pole core 10.
  • a valve spring 21 is supported on the bolt 19 and a shoulder arranged to the left of it in the drawing.
  • a Querbohru ⁇ g 22 connects the valve spring 21 receiving space with the outside of the Magneta ⁇ kers 17th
  • a valve member 23 made of hardened steel arranged on the left of the magnet actuator 17 interacts with its conical seat part 24 with a centrally arranged valve seat 25 in a valve housing 26 which is screwed into the magnet housing 14.
  • the valve housing 26 has radial inlet bores 27 and an axial outlet bore 28 and is hollow throughout.
  • the valve member 23 engages with its valve stem 29 with radial play in the center bore of the magnet armature 17 and is supported in the axial direction on a hardened and polished support ball 30 which is firmly seated in the magnet armature 17, being on a shoulder in the center bore the Mag ⁇ etankers 17 is present.
  • the valve stem 29 has an annular groove 31 into which a laterally insertable drag disc 32 with axial drag play and engages with radial play.
  • the Schleppscheib ⁇ 32 is firmly connected to the magnet armature 17 by means of an inwardly crimped connecting ring 33 formed in one piece with the magnet armature 17.
  • the solenoid valve is shown in its closed position, in which the seat part 24 of the valve member 23 is held on the valve seat 25 of the valve housing 26 under the force of the valve spring 21 and the pressure of the pressure medium acting on the free cross section of the valve seat 25.
  • the connection between the inflow holes. 27 and the drain hole 28 is interrupted.
  • the actuating magnet 1 is excited, as a result of which the magnet armature 17 is displaced to the right against the force of the valve spring 21, as seen in the drawing.
  • the towing connection between the magnet armature 17 and the valve member 23 takes it with it after the magnet armature 17 has covered a certain displacement path, whereby the valve is opened so that pressure medium flows from the inflow bores 27 into the outflow bore 28.
  • the force of the pressure of the pressure medium acting on the free cross section of the valve seat 25 must also be overcome when the magnetic armature 17 moves.
  • the magnet arm 17 is already in motion after overcoming its inertia.
  • the actuating magnet 1 is separated from its electrical power source and the magnet armature 17 is moved to the left in the drawing under the force of the valve spring 21. Because of the central force transmission caused by the support ball 30 the flat end face of the valve stem 29 eliminates the actuation of the magnet armature which adversely affects bending and tilting moments. After a short displacement, the magnet armature 17 takes the valve member 23 with it, which, due to its radial and axial mobility relative to the magnet armature 17, can easily adjust coaxially to the valve seat 25 in the valve housing 26 when the solenoid valve is closed.

Abstract

Une soupape magnétique présente un élément de commande (1) dont l'induit (17) sert à déplacer un organe de soupape (23) en opposition à l'action d'un ressort de soupape (23). Pour accroître l'efficacité de l'élément de commande, l'organe de soupape (23) et l'induit (17) sont connectés l'un à l'autre de sorte l'organe de soupape peut se régler axialement et radialement par rapport à l'induit.A magnetic valve has a control element (1) whose armature (17) serves to move a valve member (23) in opposition to the action of a valve spring (23). To increase the efficiency of the control element, the valve member (23) and the armature (17) are connected to each other so the valve member can be adjusted axially and radially by compared to the armature.

Description

Flutec Fluidtechnische Geräte GmbH, Justus-von-Liβbig-Straßβ, 6603 Sulzbach/SaarFlutec Fluidtechnische Geräte GmbH, Justus-von-Liβbig-Strasse, 6603 Sulzbach / Saar
Magnetventilmagnetic valve
Die Erfindung bezieht sich auf ein Magnetventil entsprechend dem Oberbegriff des Anspruches 1.The invention relates to a solenoid valve according to the preamble of claim 1.
Bei einem bekannten Magnetventil der vorgenannten Art ist das Ventilglied nach Art einer Scheibe ausgebildet, so daß es für einen dichten Sitz auf dem Sitzteil des Magnetventils zur Achse des ortsfesten Sitzteiles des Ventiles nicht ausge¬ richtet zu werden braucht. Bei dem bekannten Magnetventil ist die Schließfeder in einer Bohrung des Ankers untergebracht. Diese Feder dient zum Abstützen eines in den Magnetanker eingreifenden Stutzbolzens (DE-GM 69 04 282).In a known solenoid valve of the aforementioned type, the valve member is designed in the manner of a disk, so that it does not need to be aligned with the axis of the stationary seat part of the valve for a tight fit on the seat part of the solenoid valve. In the known solenoid valve, the closing spring is accommodated in a bore in the armature. This spring serves to support a support bolt engaging in the magnet armature (DE-GM 69 04 282).
Ein anderes bekanntes Magnetventil hat ein Ventilglied mit im Bereich seiner Enden angeordneten kegelförmigen Sitzteilen, deren Spitzen einander zugewandt sind. Der die kegelförmigen Sitzteile miteinander verbindende Schaft ist in einer Bohrung geführt. An den Enden des Ventilgliedes ist jeweils eine Feder vorgesehen, die zur Ausübung einer Schließkraft auf den auf seinem Ventilsitz sitzenden benachbarten Kegelteil dient (DE-0S 27 40 646).Another known solenoid valve has a valve member with conical seat parts arranged in the region of its ends, the tips of which face one another. The shaft connecting the conical seat parts to one another is guided in a bore. At the ends of the valve member, a spring is provided, which serves to exert a closing force on the adjacent cone part seated on its valve seat (DE-0S 27 40 646).
Wieder ein anderes bekanntes Magnetventil mit einer einstell¬ baren Verbindung zwischen dem Magnetaπker und dem Ventilglied hat eine Stützkugel. (DE-0S 22 08 183).Another known solenoid valve with an adjustable connection between the magnet armature and the valve member has a support ball. (DE-0S 22 08 183).
Noch ein anderes bekanntes Magnetventil hat eine Αntiklebschei- be zwischen dem Magnetaπker und dem Polkern (DE-AS 12 49 043).Yet another known solenoid valve has an adhesive disc between the magnet armature and the pole core (DE-AS 12 49 043).
- 3a - Der vorliegenden Erfindung liegt, ausgehend von dem an erster Stelle genannten Magnetventil, die Aufgabe zugrunde, bei geschlossenem Ventil einen dichten Sitz des einen kegelförmigen Sitzteil aufweisenden Ventilgliedes zu erreichen. Diese Aufgabe wird durch die Merkmale im Kennzeichnungsteil des Anspruches 1 erfindungsgemäß gelöst. •Durch die besondere Ausbildung der Schleppverbindυng wird ein dichter Sitz des Ventilgliedes auf seinem Ventilsitz erreicht, da sich das Ventilglied axial und radial einstellen kann. Die Verbindung ist einfacher Natur und kann ohne großen Aufwand hergestellt werden. Der Magnetanker kann mit verhältnismäßig geringem Spiel im Magnet¬ gehäuse geführt werden.- 3a - The object of the present invention, based on the solenoid valve mentioned in the first place, is to achieve a tight fit of the valve member having a conical seat part when the valve is closed. This object is achieved according to the invention by the features in the characterizing part of claim 1. • The special design of the towing connection ensures a tight fit of the valve member on its valve seat, since the valve member can adjust axially and radially. The connection is simple in nature and can be established with little effort. The magnet armature can be guided in the magnet housing with relatively little play.
Um dem einen kegelförmigen Sitzteil aufweisenden Ventilglied einen guten Sitz auf dem ortsfesten Sitzteil zu ermöglichen, ist üblich, dem mit dem Magnetanker fest verbundenen Ventil¬ glied eine radiale Einstellmöglichkeit zu geben. Mit einer solchen Einstellmöglichkeit kann jedoch ein dichtes Schließen des Ventilgliedes nicht erreicht werden (DE-GM 69 04 282). In order to enable the valve member having a conical seat part to fit well on the stationary seat part, it is customary to give the valve member, which is firmly connected to the magnet armature, a radial setting possibility. With such an adjustment option, however, a tight closing of the valve member cannot be achieved (DE-GM 69 04 282).
Die Merkmale des Anspruches 2 sind auf eine bevorzugte Verbindung zwischen dem Ventilglied und dem Magnetanker gerichtet.The features of claim 2 are directed to a preferred connection between the valve member and the armature.
Die Merkmale des Anspruches 3 vermindern die Reibung zwischen dem Magnetanker und dem Ventilglied bei gegenseitiger radialer Bewegung.The features of claim 3 reduce the friction between the magnet armature and the valve member with mutual radial movement.
Weitere Vorteile ergeben sich aus den übrigen Ansprüchen, der Beschreibung und der Zeichnung. In dieser ist ein Magnetventil als Aυsführungsbeispiel des Gegenstandes der Erfindung im Längs¬ schnitt schematisch dargestellt.Further advantages result from the remaining claims, the description and the drawing. In this, a solenoid valve is schematically shown in longitudinal section as an exemplary embodiment of the subject matter of the invention.
Ein Betätigungsmagnet 1 hat eine Erregerwicklung 2, die auf eine Spule 4 aufgewickelt ist. Seitlich der Spule 4 sind Gehäuse¬ ringe 5 und 6 angeordnet. Die Außenseite der Erregerwicklung 2 und der Umfang jedes Gehäuseringes 5, 6 ist von einem Mantel 7 aus Kunststoff bedeckt, in welchen die von ihm umgebenen Teile eingebettet sind, über einen Vorsprung im Mantel 7 stehen zwei Steckerfahπen 8 und ein Schutzleiteranschluß 9 über, die mit der Erregerwicklung elektrisch leitend verbunden sind.An actuating magnet 1 has an excitation winding 2 which is wound on a coil 4. Housing rings 5 and 6 are arranged to the side of the coil 4. The outside of the excitation winding 2 and the circumference of each housing ring 5, 6 is covered by a sheath 7 made of plastic, in which the parts surrounding it are embedded, via a projection in the sheath 7 there are two plug connectors 8 and a protective conductor connection 9, which are connected with the excitation winding are electrically connected.
In die Spule 4 greift von in der Zeichnung rechten Seite ein Polkerπ 10 hinein, auf dessen über die- Spule 4 hinausragendem Ende eine Haltemutter 11 aufgeschraubt ist. Zwischen der Halte- mutter 11 und dem Gehäusering 6 ist ein Dichtring 12 angeordnet. Zwischen die Haltemutter 11 und den Gehäusering 7 ist eine den Dichtring 12 umgebende Klemmplatte i3 eingeklemmt.In the coil 4, a Polkerπ 10 engages from the right side in the drawing, on the end of which projects beyond the coil 4, a retaining nut 11 is screwed on. A sealing ring 12 is arranged between the holding nut 11 and the housing ring 6. A clamping plate i3 surrounding the sealing ring 12 is clamped between the holding nut 11 and the housing ring 7.
In die Spule 4 ragt von der in der Zeichnung linken Seite ein Magnetgehäuse 14 hinein, das mit seiner an einem Mehrkant be¬ findlichen Schulter an dem Gehäusering 5 ansteht und an seinem vom Polkern 10 abgewaπdtan Ende ein Außengewinde hat. Zwischen dem Polkern 10 und dem Magnetgehäuse 14 befindet sich ein Abstand ring 15. Der Polkern 10 ist mit dem Magnetgehäuse 14 mittels eines den Abstandring umgebenden und aus einem Schmelzmetall, insbesondere Messinglot, bestehenden Verbiπdungsringes 16 ver- bunden. Die Ringe 15 und 16 bestehen aus nicht magnetischem Werkstoff.A magnet housing 14 protrudes into the coil 4 from the left side in the drawing, which with its shoulder, which is located on a polygon, abuts the housing ring 5 and has an external thread at its end, which is averted from the pole core 10. There is a spacer ring 15 between the pole core 10 and the magnet housing 14. The pole core 10 is connected to the magnet housing 14 by means of a connecting ring 16 which surrounds the spacer ring and is made of a molten metal, in particular brass solder. bound. The rings 15 and 16 are made of non-magnetic material.
Das Magnetgehäuse 14 ist hohl ausgebildet und der Polkern 10 hat eine flache Sackbohrung jeweils zur Aufnahme eines Magnet¬ ankers 17, der mit geringem radialem Spiel im Magnetgehäuse 14 und im Polkern 10 geführt ist. Das Magnetgehäuse 14 und der Polkern 10 bilden ein druckdichtes Gehäuse für den Magnet¬ anker 17. Dieser hat Längsrippen 18 und kann sich längs des Magnetgehäuses 14 bewegen. In einer Mittenbohr_ung des Magnet- aπkers 17, die unterschiedliche Durchmesser hat, sind in der Zeichnung von rechts nach links gesehen, ein aus nicht magnet¬ ischem Werkstoff bestehender Bolzen 19 untergebracht, der einen zwischen dem Magnetaπker 17 und dem Grund des Polkerns 10 ange¬ ordneten Bund 20 hat, um ein magnetisches Kleben des Magnet¬ ankers 17 am Polkern 10 zu verhindern. An dem Bolzen 19 und einer in der Zeichnung links davon angeordneten Schulter stützt sich eine Ventilfeder 21 ab. Eine Querbohruπg 22 verbindet den die Ventilfeder 21 aufnehmenden Raum mit der Außenseite des Magnetaπkers 17.The magnet housing 14 is hollow and the pole core 10 has a flat blind hole in each case for receiving a magnet armature 17 which is guided in the magnet housing 14 and in the pole core 10 with little radial play. The magnet housing 14 and the pole core 10 form a pressure-tight housing for the magnet armature 17. This has longitudinal ribs 18 and can move along the magnet housing 14. In the center bore of the magnet armature 17, which has different diameters, a bolt 19, made of non-magnetic material, is accommodated in the drawing from right to left, which pin is located between the magnet armature 17 and the base of the pole core 10 has arranged collar 20 to prevent magnetic sticking of the magnetic armature 17 to the pole core 10. A valve spring 21 is supported on the bolt 19 and a shoulder arranged to the left of it in the drawing. A Querbohruπg 22 connects the valve spring 21 receiving space with the outside of the Magnetaπkers 17th
Ein in der Zeichnung links des Magnetaπkers 17 angeordnetes Ventilglied 23 aus gehärtetem Stahl wirkt mit seinem kegel¬ förmigen Sitzteil 24 mit einem zentrisch angeordneten Ventilsitz 25 in einem Ventilgehäuse 26 zusammen, das in das Magnetgehäuse 14 eingeschraubt ist. Das Ventilgehäuse 26 hat radiale Zuflu߬ bohrungen 27 und eine axiale Abflußbohrung 28 und ist durchgehend hohl ausgebildet.A valve member 23 made of hardened steel arranged on the left of the magnet actuator 17 interacts with its conical seat part 24 with a centrally arranged valve seat 25 in a valve housing 26 which is screwed into the magnet housing 14. The valve housing 26 has radial inlet bores 27 and an axial outlet bore 28 and is hollow throughout.
Das Ventilglied 23 greift mit seinem Ventilschaft 29 mit radialem Spiel in die Mittenbohrung des Magnetankers 17 ein und stützt sich in axialer Richtung auf eine gehärtete und polierte Sütz- kugel 30 ab, die fest im Magnetanker 17 sitzt, Wobei sie an einer Schulter in der Mittenbohrung des Magπetankers 17 ansteht. Der Ventilschaft 29 hat eine Ringnut 31, in die eine seitlich einsetzbare Schleppscheibe 32 mit axialem Schleppspiel und mit radialem Spiel eingreift. Die Schleppscheibβ 32 ist mittels eines einwärts gebördelten, einstückig mit dem Magnetaπker 17 ausgebildeten Verbindungsrings 33 mit dem Magπetanker 17 fest verbunden.The valve member 23 engages with its valve stem 29 with radial play in the center bore of the magnet armature 17 and is supported in the axial direction on a hardened and polished support ball 30 which is firmly seated in the magnet armature 17, being on a shoulder in the center bore the Magπetankers 17 is present. The valve stem 29 has an annular groove 31 into which a laterally insertable drag disc 32 with axial drag play and engages with radial play. The Schleppscheibβ 32 is firmly connected to the magnet armature 17 by means of an inwardly crimped connecting ring 33 formed in one piece with the magnet armature 17.
Zwischen dem Magnetgehäuse 14 und dem Gehäusering 5 befindet sich ein in das Magnetgehäuse 14 eingesetzter Dichtring 34.Between the magnet housing 14 and the housing ring 5 there is a sealing ring 34 inserted into the magnet housing 14.
Das Magnetventil ist in seiner Schließlage dargestellt, in welcher unter der Kraft der Veπtilfeder 21 und dem auf den freien Querschnitt des Ventilsitzes 25 wirkenden Druckes des Druckmittels der Sitzteil 24 des Ventilgliedes 23 auf dem Ventil sitz 25 des Ventilgehäuses 26 gehalten wird. Die Verbindung zwischen den Zuflußbohrungen. 27 und der Abflußbohrung 28 ist unterbrochen.The solenoid valve is shown in its closed position, in which the seat part 24 of the valve member 23 is held on the valve seat 25 of the valve housing 26 under the force of the valve spring 21 and the pressure of the pressure medium acting on the free cross section of the valve seat 25. The connection between the inflow holes. 27 and the drain hole 28 is interrupted.
Um eine Verbindung zwischen den Zuflußbohrungen 27 und der Abflußbohrung 28 herzustellen, wird der Betätigungsmagπet 1 erregt, wodurch der Magnetanker 17 in der Zeichnung gesehen entgegen der Kraft der Ventilfeder 21 nach rechts verschoben wird. Hierbei nimmt die Schleppverbindung zwischen dem Magnet¬ anker 17 und dem Ventilglied 23 dieses mit, nachdem der Magπet¬ anker 17 einen bestimmten Verschiebeweg zurückgelegt hat, wo¬ durch das Ventil geöffnet wird, so daß Druckmittel von den Zuflußbohrungen 27 in die Abflußbohrung 28 fließt. Sobald die Schleppverbiπdung wirksam wird, muß bei der Bewegung des Magnet¬ ankers 17 auch die Kraft des auf den freien Querschnitt des Ventilsitzes 25 wirkenden Druck des Druckmittels überwunden werden. Hierbei befindet sich der Magnetaπker 17 nach Überwindun seiner Massenträgheit bereits in Bewegung.In order to establish a connection between the inflow bores 27 and the outflow bore 28, the actuating magnet 1 is excited, as a result of which the magnet armature 17 is displaced to the right against the force of the valve spring 21, as seen in the drawing. Here, the towing connection between the magnet armature 17 and the valve member 23 takes it with it after the magnet armature 17 has covered a certain displacement path, whereby the valve is opened so that pressure medium flows from the inflow bores 27 into the outflow bore 28. As soon as the Schleppverbiπdung becomes effective, the force of the pressure of the pressure medium acting on the free cross section of the valve seat 25 must also be overcome when the magnetic armature 17 moves. Here, the magnet arm 17 is already in motion after overcoming its inertia.
Soll das Magnetventil wieder geschlossen werden*, so wird der Betätigungsmagnet 1 von seiner elektrischen Stromquelle getrennt und der Magnetanker 17 wird unter der Kraft der Ventilfeder 21 in der Zeichnung gesehen nach links bewegt. Wegen der von der Stützkugel 30 bewirkten zentralen Kraftübertragung auf die ebene Stirnfläche des Ventilschaftes 29 entfallen die Be¬ tätigung des Magnetankers nachteilig beeiπflußende Biege- und Kippmomente. Nach kurzem Verschiebeweg nimmt der Magnetanker 17 das Ventilglied 23 mit, das sich wegen seiner radialen und axialen Beweglichkeit gegenüber dem Magnetaπker 17 leicht koaxia zum Ventilsitz 25 im Ventilgehäuse 26 einstellen kann, wenn das Magnetventil geschlossen wird. If the solenoid valve is to be closed again * , the actuating magnet 1 is separated from its electrical power source and the magnet armature 17 is moved to the left in the drawing under the force of the valve spring 21. Because of the central force transmission caused by the support ball 30 the flat end face of the valve stem 29 eliminates the actuation of the magnet armature which adversely affects bending and tilting moments. After a short displacement, the magnet armature 17 takes the valve member 23 with it, which, due to its radial and axial mobility relative to the magnet armature 17, can easily adjust coaxially to the valve seat 25 in the valve housing 26 when the solenoid valve is closed.

Claims

P a t e n t a n s p r ü c h eP a t e n t a n s r u c h e
Magnetventil mit einem Betätigungsmagneten (1), dessen Magnetanker (17) zum Bewegen eines Ventilgliedes (23) entgegen der Wirkung einer Ventilfeder (24) dient, wobei das Ventilglied (23) und der Magnetanker (17) mittels einer Schleppverbindung (31 bis 33) derart miteinander verbunden sind, daß sich das Ventilglied gegenüber dem Magnetaπker axial und radial einstellen kann, dadurch g e k e n n z e i c h n e t, daß die Schleppverbindung (31 bis 33) ein mit dem Ventilglied (23), das einen kegelförmigen Sitzteil (24) aufweist, oder mit dem Magnet¬ aπker (17) fest verbundenes Schleppglied (32) hat, das zwischen zwei Schultern (31) eines der mit Magnetanker (17) oder Veπtilglied (23) bezeichneten Körper mit Schlepp¬ spiel eingreift.Solenoid valve with an actuating magnet (1), the magnet armature (17) of which serves to move a valve member (23) against the action of a valve spring (24), the valve member (23) and the magnet armature (17) by means of a drag connection (31 to 33) are connected to each other in such a way that the valve member can adjust axially and radially with respect to the magnet actuator, characterized in that the towing connection (31 to 33) with the valve member (23), which has a conical seat part (24), or with the magnet ¬ aπker (17) has a firmly connected towing member (32) which engages between two shoulders (31) of one of the bodies designated with a magnet armature (17) or valve member (23) with a towing game.
Magnetventil nach Anspruch 1, dadurch g e k e n n z e i c h π e t, daß das Schleppglied (32) eine in eine Ringnut (31) im Ventilglied (23) von der Seite her einsetzbare Schleppscheibe ist, die mittels eines umgebördelten ringartigen Vorsprunges (33) am Magnetaπker (17) mit diesem fest verbunden ist.Solenoid valve according to claim 1, characterized in that the towing member (32) is a towing disk which can be inserted from the side into an annular groove (31) in the valve member (23) and which is attached to the magnet arm (17) by means of a flanged ring-like projection (33). is firmly connected to it.
Magnetventil nach einem der Ansprüche 1 und 2, dadurch g e k e n n z e i c h n e t, daß in der den mit dem Veπtilglied (23) fest verbundenen Teil (29) aufnehmenden Bohrung im Magnetaπker (17) eine mit einer vom Ventilsitz (25) abgewandteπ Stirnseite des Ventilgliedes zusammenwir¬ kende Stützkugel (30) untergebracht ist. 4. Magnetventil nach einem der vorhergehenden Ansprüche, bei dem in einer koaxial zu der den mit dem Ventilglied (23) fest verbundenen Teil (29) und die Stützkugel (30) aufnehmenden Bohrung die Ventilfeder (21) und ein mit einer Scheibe (20) versehener Bolzen (19) untergebracht sind, der zum Abstüt-zen an einer ortsfesten Wand des Betätigungsmagneten (1) dient, dadurch g e k e n n z e i c h n e t, daß die Scheibe (20) auf der vom Ventilglied (23) abgewandten Seite des Bolzens (19) angeordnet ist. Solenoid valve according to one of claims 1 and 2, characterized in that in the part (29) which receives the part (29) which is firmly connected to the valve member (23), a bore cooperating with an end face of the valve member facing away from the valve seat (25) cooperates Support ball (30) is housed. 4. Solenoid valve according to one of the preceding claims, in which the valve spring (21) and a with a disc (20) in a coaxial to the part (29) which is fixedly connected to the valve member (23) and the support ball (30) receiving the bore Provided bolt (19) is used, which is used for support on a fixed wall of the actuating magnet (1), characterized in that the disc (20) is arranged on the side of the bolt (19) facing away from the valve member (23).
EP86904777A 1985-08-07 1986-08-06 Magnetic valve Withdrawn EP0230464A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3528296 1985-08-07
DE19853528296 DE3528296A1 (en) 1985-08-07 1985-08-07 MAGNETIC VALVE

Publications (1)

Publication Number Publication Date
EP0230464A1 true EP0230464A1 (en) 1987-08-05

Family

ID=6277903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86904777A Withdrawn EP0230464A1 (en) 1985-08-07 1986-08-06 Magnetic valve

Country Status (5)

Country Link
US (1) US4783051A (en)
EP (1) EP0230464A1 (en)
JP (1) JPS63500395A (en)
DE (1) DE3528296A1 (en)
WO (1) WO1987000903A1 (en)

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Also Published As

Publication number Publication date
JPS63500395A (en) 1988-02-12
DE3528296A1 (en) 1987-02-19
US4783051A (en) 1988-11-08
WO1987000903A1 (en) 1987-02-12

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