EP0667458B1 - Proportional solenoid-valve unit - Google Patents

Proportional solenoid-valve unit Download PDF

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Publication number
EP0667458B1
EP0667458B1 EP95100335A EP95100335A EP0667458B1 EP 0667458 B1 EP0667458 B1 EP 0667458B1 EP 95100335 A EP95100335 A EP 95100335A EP 95100335 A EP95100335 A EP 95100335A EP 0667458 B1 EP0667458 B1 EP 0667458B1
Authority
EP
European Patent Office
Prior art keywords
housing
valve
valve unit
valve housing
unit according
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
EP95100335A
Other languages
German (de)
French (fr)
Other versions
EP0667458A1 (en
Inventor
Bernd Niethammer
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.)
HYDRAULIK-RING ANTRIEBS- und STEUERUNGSTECHNIK GmbH
Hilite Germany GmbH
Original Assignee
HYDRAULIK-RING ANTRIEBS- und STEUERUNGSTECHNIK GmbH
Hydraulik Ring GmbH
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Filing date
Publication date
Application filed by HYDRAULIK-RING ANTRIEBS- und STEUERUNGSTECHNIK GmbH, Hydraulik Ring GmbH filed Critical HYDRAULIK-RING ANTRIEBS- und STEUERUNGSTECHNIK GmbH
Publication of EP0667458A1 publication Critical patent/EP0667458A1/en
Application granted granted Critical
Publication of EP0667458B1 publication Critical patent/EP0667458B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • F15B13/0442—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors with proportional solenoid allowing stable intermediate positions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B2013/041—Valve members; Fluid interconnections therefor with two positions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86622—Motor-operated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86879—Reciprocating valve unit

Definitions

  • the invention relates to a proportional solenoid valve unit according to the preamble of claim 1.
  • valve housing sealed in the receiving space of the installation housing with sealing rings.
  • the valve housing has its Electromagnet-facing end of a threaded hole into which a threaded part of the electromagnet is screwed becomes.
  • the valve housing unit connected in this way and the electromagnet is secured with a holding plate and fixed on the installation housing. So that Sealing rings of the valve housing when installing in the installation housing must not be damaged, lead-in chamfers provided at the end of the receiving space of the installation housing be. This requires additional process steps the production of this recording space.
  • the valve housing too must be grooved in complex work steps be provided for inserting the sealing rings.
  • the threaded hole also requires an elaborate and expensive manufacturing.
  • valve unit After all, securing the unit from valve housing and electromagnet by means of Retaining plates are expensive, especially as an additional one Component the holding plate and the associated screws required are. For this reason, this proportional solenoid valve unit expensive to manufacture and complex to assemble.
  • a valve unit is known from US-A-5 259 414.
  • the invention has for its object the generic To design the proportional solenoid valve unit so that it consists of only a few components, if possible Standard components are simple and inexpensive can be manufactured and assembled.
  • the proportional solenoid valve unit according to the invention has the receiving space of the installation housing over its Length constant diameter. This allows this recording space for example in a single process step be made by drilling.
  • the recording room has neither steps nor thread. Therefore the valve housing be provided with a smooth outer wall, the sealing on the inner wall of the receiving space of the Installation housing is present. Additional sealing rings are not mandatory. Rather, the seal is through the Coverage between the walls of the receiving space of the Installation housing and the valve housing ensured.
  • the Connection of the valve housing with the installation housing and the electromagnet is done by a corresponding one Flare that can be done easily.
  • the invention Proportional solenoid valve unit exists thus from just a few components that are inexpensive to manufacture can be and their installation no additional Process or manufacturing steps required. Therefore, the proportional solenoid valve unit according to the invention manufactured and assembled extremely cost-effectively will.
  • the proportional solenoid valve unit is used to To control or regulate the aggregate (not shown).
  • a unit can be, for example, a piston-cylinder unit be, for example, part of a Power steering of a motor vehicle is.
  • the proportional solenoid valve unit has an electromagnet 1 that trained in a known manner and therefore not in detail is described. It has a plunger 2 (Fig. 2), the when energizing the electromagnet 1 in the axial direction is moved. With the plunger 2, a piston 3 is against the force of a compression spring 4 shifted. The piston 3 and the compression spring 4 are accommodated in a valve housing 5, this in turn in an installation housing 6 is arranged.
  • the installation housing 6 has a continuous Receiving opening 7, which are constant over its length Diameter. This allows this receiving opening 7 very easy to produce in a single step.
  • the valve housing can be accommodated in this receiving opening 7 5 very easy to use. It lies with its cylindrical Wall 8 on the opening wall.
  • the Installation housing 6 has on its facing away from the electromagnet 1 Side an annular projection 9, which of the receiving opening 7 is penetrated.
  • the valve housing 5 projects axially over the annular projection 9.
  • the valve housing 5 has none on its outer wall 8 Grooves for inserting sealing rings.
  • the seal between the installation housing 6 and the valve housing 5 is due to the overlap between the walls the receiving opening 7 and the outer wall 8 of the valve housing 5 reached.
  • the valve housing 5 has two working connections 10 and 11 and a pressure connection 12 located between them.
  • the installation housing 6 points to the working connections 10, 11 subsequent holes, of which only in Fig. 2 the bore 13 adjoining the working connection 10 is shown.
  • the pressure connection 12 is via a (Not shown) hole in the installation housing 6 with the Pump of the hydraulic system, also not shown connected. Via the pressure connection 12, the hydraulic medium fed and depending on the position of the piston 5 Working connection 10 or the working connection 11 supplied.
  • the valve housing 5 faces near the electromagnet 1 opposite end on the outside an annular groove 14, in which the projection 9 of the installation housing 6 with a corresponding flange 15 engages.
  • the lead 9 has such a wall thickness that the flare 15 is simple after inserting the valve housing 5 in the receiving opening 7 of the built-in housing 6 can be attached. In this way, the valve housing 5 and that Connect the installation housing 6 very easily.
  • Valve housing 5 At its end facing the electromagnet 1 Valve housing 5 has a thin-walled sleeve-shaped projection 16, which has a cylindrical connecting part 17 of the Grips electromagnet 1.
  • the cylindrical projection 16 is flanged diagonally inwards and thus overlaps the connecting part 17, which is conical in this area is trained. It is also possible to use the cylindrical one Projection 16 of the valve housing 5 with over its circumference to provide protruding tongues arranged in a distributed manner, which are bent obliquely inwards. This too A simple, acting in the axial direction positive connection between the electromagnet 1 and manufacture the valve housing 5.
  • the projection 16 protrudes from an end face 18 of the valve housing 5, to which the connecting part 17 rests and which of a penetrates central bore 19 of the valve housing 5 becomes.
  • the plunger 2 of the electromagnet 1 protrudes into the Bore 19 and lies against the end face of the piston 3.
  • the piston 3 is mirror-symmetrical to its transverse central plane trained so that when installed in the Valve housing 5 is not paid attention to its position got to.
  • the piston 3 has two spaced apart Ring webs 20 and 21, the width of which is slightly larger is the width of the working ports 10 and 11. In the middle position of the piston shown in FIG. 2 3, the two working connections 10 and 11 closed by the ring webs 20, 21 of the piston 3.
  • Valve housing 5 At the end facing away from the electromagnet 1 Valve housing 5 with an axially projecting cylindrical Provide projection 22.
  • plastically deformable tongues 23 axial incisions brought in. This allows the tongues 23 to be radial deform inwards.
  • the tongues 23 serve to secure the axles the compression spring 4. By different strengths plastic deformation, the tongues 23 can be bent be that the compression spring 4 for the respective application has the required preload.
  • the piston 3 is intended to be in the central position shown in FIG. 2 at a given current with which the Electromagnet 1 is acted upon.
  • the working connections 10, 11 of the valve housing are in the middle position 5 through the two ring webs 20, 21 of the piston 3 closed.
  • the electromagnet 1 with the appropriate current acts, whereby the plunger 2 correspondingly far extends axially from the electromagnet 1 and the piston 3 shifts to the right in Fig. 2.
  • the tongues 23 now plastically bent inwards until the Ring webs 20, 21 of the piston 3, the working connections 10, 11 close. In this way, the valve unit very easy to assemble and still very easy set exactly so that at the appropriate current the work connections are also reliably closed are.
  • the tongues 23 thus not only secure the Compression spring 4 in its installed position, but serve at the same time also as an adjustment means to move the valve unit in the way described to the appropriate amperage of the electromagnet. While with the conventional valve housings for axial support of the Compression spring 4 an adjusting screw is required and a corresponding thread has to be made the adjusting screw for the valve housing described as well as the production of a thread. At this Valve unit thus become an expensive component as well an elaborate and accordingly expensive production avoided without this adversely affecting the Functionality and in particular the setting of the Valve unit affects.
  • the outer diameter advantageously corresponds of the piston end 24 the inner diameter of the compression spring 4, which is guided properly at this piston end becomes.
  • valve unit described with the electromagnet 1 can be inexpensive from only a very few components manufacture, assemble and simple and inexpensive in it Install installation housing 6. In particular, they are not complex and expensive manufacturing process steps of the installation housing 6 and the valve housing 5 required.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Servomotors (AREA)

Description

Die Erfindung betrifft eine Proportionalmagnet-Ventileinheit nach dem Oberbegriff des Anspruches 1.The invention relates to a proportional solenoid valve unit according to the preamble of claim 1.

Bei dieser bekannten Ventileinheit ist das Ventilgehäuse im Aufnahmeraum des Einbaugehäuses mit Dichtringen abgedichtet. Außerdem weist das Ventilgehäuse an seinem dem Elektromagneten zugewandten Ende eine Gewindebohrung auf, in die ein Gewindeteil des Elektromagneten geschraubt wird. Die so verbundene Einheit aus Ventilgehäuse und Elektromagnet wird mit einem Halteblech gesichert und auf dem Einbaugehäuse befestigt. Damit die Dichtringe des Ventilgehäuses beim Einbau in das Einbaugehäuse nicht beschädigt werden, müssen Einführschrägen am Ende des Aufnahmeraumes des Einbaugehäuses vorgesehen sein. Dies bedingt zusätzliche Verfahrensschritte bei der Herstellung dieses Aufnahmeraumes. Auch das Ventilgehäuse muß in aufwendigen Arbeitsschritten mit Nuten zum Einlegen der Dichtungsringe versehen werden. Die Gewindebohrung erfordert ebenfalls eine aufwendige und teuere Fertigung. Schließlich ist die Sicherung der Einheit aus Ventilgehäuse und Elektromagnet mittels des Haltebleches aufwendig, zumal hierfür als zusätzliches Bauteil das Halteblech und die dazugehörigen Schrauben erforderlich sind. Aus diesem Grunde ist diese Proportionalmagnet-Ventileinheit teuer in der Fertigung und aufwendig in der Montage. Eine derartige Ventileinheit ist aus der US-A-5 259 414 bekannt.In this known valve unit, the valve housing sealed in the receiving space of the installation housing with sealing rings. In addition, the valve housing has its Electromagnet-facing end of a threaded hole into which a threaded part of the electromagnet is screwed becomes. The valve housing unit connected in this way and the electromagnet is secured with a holding plate and fixed on the installation housing. So that Sealing rings of the valve housing when installing in the installation housing must not be damaged, lead-in chamfers provided at the end of the receiving space of the installation housing be. This requires additional process steps the production of this recording space. The valve housing too must be grooved in complex work steps be provided for inserting the sealing rings. The threaded hole also requires an elaborate and expensive manufacturing. After all, securing the unit from valve housing and electromagnet by means of Retaining plates are expensive, especially as an additional one Component the holding plate and the associated screws required are. For this reason, this proportional solenoid valve unit expensive to manufacture and complex to assemble. Such a valve unit is known from US-A-5 259 414.

Der Erfindung liegt die Aufgabe zugrunde, die gattungsgemäße Proportionalmagnet-Ventileinheit so auszubilden, daß sie aus nur wenigen Bauteilen besteht, die möglichst Standardbauteile sind und die dennoch einfach und kostengünstig hergestellt und montiert werden können.The invention has for its object the generic To design the proportional solenoid valve unit so that it consists of only a few components, if possible Standard components are simple and inexpensive can be manufactured and assembled.

Diese Aufgabe wird bei der gattungsgemäßen Proportionalmagnet-Ventileinheit erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst.This task is carried out with the generic proportional solenoid valve unit according to the invention with the characteristic Features of claim 1 solved.

Bei der erfindungsgemäßen Proportionalmagnet-Ventileinheit hat der Aufnahmeraum des Einbaugehäuses über seine Länge konstanten Durchmesser. Dadurch kann dieser Aufnahmeraum in einem einzigen Verfahrensschritt beispielsweise durch Bohren hergestellt werden. Der Aufnahmeraum weist weder Stufen noch Gewinde auf. Darum kann das Ventilgehäuse mit einer glatten Außenwand versehen sein, die dichtend an der Innenwandung des Aufnahmeraumes des Einbaugehäuses anliegt. Zusätzliche Dichtungsringe sind nicht erforderlich. Vielmehr wird die Dichtung durch die Überdeckung zwischen der Wandung des Aufnahmeraumes des Einbaugehäuses und dem Ventilgehäuse sichergestellt. Die Verbindung des Ventilgehäuses mit dem Einbaugehäuse und dem Elektromagneten erfolgt durch eine entsprechende Bördelung, die einfach vorgenommen werden kann. Die erfindungsgemäße Proportionalmagnet-Ventileinheit besteht somit aus nur wenigen Bauteilen, die kostengünstig gefertigt werden können und deren Einbau keine zusätzlichen Verfahrens- bzw. Herstellungsschritte erfordert. Darum kann die erfindungsgemäße Proportionalmagnet-Ventileinheit äußerst kostengünstig hergestellt und montiert werden.In the proportional solenoid valve unit according to the invention has the receiving space of the installation housing over its Length constant diameter. This allows this recording space for example in a single process step be made by drilling. The recording room has neither steps nor thread. Therefore the valve housing be provided with a smooth outer wall, the sealing on the inner wall of the receiving space of the Installation housing is present. Additional sealing rings are not mandatory. Rather, the seal is through the Coverage between the walls of the receiving space of the Installation housing and the valve housing ensured. The Connection of the valve housing with the installation housing and the electromagnet is done by a corresponding one Flare that can be done easily. The invention Proportional solenoid valve unit exists thus from just a few components that are inexpensive to manufacture can be and their installation no additional Process or manufacturing steps required. Therefore, the proportional solenoid valve unit according to the invention manufactured and assembled extremely cost-effectively will.

Weitere Merkmale der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und den Zeichnungen.Further features of the invention result from the others Claims, the description and the drawings.

Die Erfindung wird anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigen

Fig. 1
eine Seitenansicht einer erfindungsgemäßen Proportionalmagnet-Ventileinheit, die in ein Einbaugehäuse eingesetzt ist,
Fig. 2
in vergrößerter Darstellung die erfindungsgemäße Proportionalmagnet-Ventileinheit teilweise in Ansicht und teilweise im Längsschnitt.
The invention is explained in more detail using an exemplary embodiment shown in the drawings. Show it
Fig. 1
2 shows a side view of a proportional solenoid valve unit according to the invention, which is inserted into an installation housing,
Fig. 2
in an enlarged view, the proportional solenoid valve unit according to the invention partly in view and partly in longitudinal section.

Die Proportionalmagnet-Ventileinheit dient dazu, ein (nicht dargestelltes) Aggregat zu steuern oder zu regeln. Ein solches Aggregat kann beispielsweise eine Kolben-Zylinder-Einheit sein, die beispielsweise Teil einer Servolenkung eines Kraftfahrzeuges ist. Die Proportionalmagnet-Ventileinheit hat einen Elektromagneten 1, der in bekannter Weise ausgebildet und darum nicht im einzelnen beschrieben ist. Er hat einen Stößel 2 (Fig. 2), der beim Bestromen des Elektromagneten 1 in Achsrichtung verschoben wird. Mit dem Stößel 2 wird ein Kolben 3 gegen die Kraft einer Druckfeder 4 verschoben. Der Kolben 3 und die Druckfeder 4 sind in einem Ventilgehäuse 5 untergebracht, das seinerseits in einem Einbaugehäuse 6 angeordnet ist.The proportional solenoid valve unit is used to To control or regulate the aggregate (not shown). Such a unit can be, for example, a piston-cylinder unit be, for example, part of a Power steering of a motor vehicle is. The proportional solenoid valve unit has an electromagnet 1 that trained in a known manner and therefore not in detail is described. It has a plunger 2 (Fig. 2), the when energizing the electromagnet 1 in the axial direction is moved. With the plunger 2, a piston 3 is against the force of a compression spring 4 shifted. The piston 3 and the compression spring 4 are accommodated in a valve housing 5, this in turn in an installation housing 6 is arranged.

Wie Fig. 2 zeigt, hat das Einbaugehäuse 6 eine durchgehende Aufnahmeöffnung 7, die über ihre Länge konstanten Durchmesser hat. Dadurch läßt sich diese Aufnahmeöffnung 7 in einem einzigen Arbeitsschritt sehr einfach herstellen. In diese Aufnahmeöffnung 7 läßt sich das Ventilgehäuse 5 sehr einfach einsetzen. Es liegt mit seiner zylindrischen Wandung 8 an der Öffnungswandung an. Das Einbaugehäuse 6 hat an seiner vom Elektromagneten 1 abgewandten Seite einen ringförmigen Vorsprung 9, der von der Aufnahmeöffnung 7 durchsetzt ist. Das Ventilgehäuse 5 ragt axial über den ringförmigen Vorsprung 9.2 shows, the installation housing 6 has a continuous Receiving opening 7, which are constant over its length Diameter. This allows this receiving opening 7 very easy to produce in a single step. The valve housing can be accommodated in this receiving opening 7 5 very easy to use. It lies with its cylindrical Wall 8 on the opening wall. The Installation housing 6 has on its facing away from the electromagnet 1 Side an annular projection 9, which of the receiving opening 7 is penetrated. The valve housing 5 projects axially over the annular projection 9.

Das Ventilgehäuse 5 weist an seiner Außenwandung 8 keine Nuten zum Einlegen von Dichtungsringen auf. Die Abdichtung zwischen dem Einbaugehäuse 6 und dem Ventilgehäuse 5 wird allein durch die Überdeckung zwischen der Wandung der Aufnahmeöffnung 7 und der Außenwandung 8 des Ventilgehäuses 5 erreicht.The valve housing 5 has none on its outer wall 8 Grooves for inserting sealing rings. The seal between the installation housing 6 and the valve housing 5 is due to the overlap between the walls the receiving opening 7 and the outer wall 8 of the valve housing 5 reached.

Das Ventilgehäuse 5 hat zwei Arbeitsanschlüsse 10 und 11 sowie einen zwischen diesen liegenden Druckanschluß 12. Das Einbaugehäuse 6 weist an die Arbeitsanschlüsse 10, 11 anschließende Bohrungen auf, von denen in Fig. 2 nur die an den Arbeitsanschluß 10 anschließende Bohrung 13 dargestellt ist. Der Druckanschluß 12 ist über eine (nicht dargestellte) Bohrung im Einbaugehäuse 6 mit der ebenfalls nicht dargestellten Pumpe des Hydrauliksystems verbunden. Über den Druckanschluß 12 wird das Hydraulikmedium zugeführt und je nach Stellung des Kolbens 5 dem Arbeitsanschluß 10 oder dem Arbeitsanschluß 11 zugeführt. The valve housing 5 has two working connections 10 and 11 and a pressure connection 12 located between them. The installation housing 6 points to the working connections 10, 11 subsequent holes, of which only in Fig. 2 the bore 13 adjoining the working connection 10 is shown. The pressure connection 12 is via a (Not shown) hole in the installation housing 6 with the Pump of the hydraulic system, also not shown connected. Via the pressure connection 12, the hydraulic medium fed and depending on the position of the piston 5 Working connection 10 or the working connection 11 supplied.

Das Ventilgehäuse 5 weist nahe seinem vom Elektromagneten 1 abgewandten Ende außenseitig eine Ringnut 14 auf, in welche der Vorsprung 9 des Einbaugehäuses 6 mit einer entsprechenden Bördelung 15 eingreift. Der Vorsprung 9 hat eine solche Wandstärke, daß die Bördelung 15 einfach nach dem Einsetzen des Ventilgehäuses 5 in der Aufnahmeöffnung 7 des Einbaugehäuses 6 angebracht werden kann. Auf diese Weise lassen sich das Ventilgehäuse 5 und das Einbaugehäuse 6 sehr einfach miteinander verbinden.The valve housing 5 faces near the electromagnet 1 opposite end on the outside an annular groove 14, in which the projection 9 of the installation housing 6 with a corresponding flange 15 engages. The lead 9 has such a wall thickness that the flare 15 is simple after inserting the valve housing 5 in the receiving opening 7 of the built-in housing 6 can be attached. In this way, the valve housing 5 and that Connect the installation housing 6 very easily.

An seinem dem Elektromagneten 1 zugewandten Ende hat das Ventilgehäuse 5 einen dünnwandigen hülsenförmigen Vorsprung 16, der einen zylindrischen Anschlußteil 17 des Elektromagneten 1 umgreift. Der zylindrische Vorsprung 16 ist schräg nach innen gebördelt und übergreift somit den Anschlußteil 17, der in diesem Bereich kegelförmig ausgebildet ist. Es ist auch möglich, den zylindrischen Vorsprung 16 des Ventilgehäuses 5 mit über seinen Umfang verteilt angeordneten vorstehenden Zungen zu versehen, die schräg nach innen gebogen werden. Auch auf diese Weise läßt sich eine einfache, in Achsrichtung wirkende formschlüssige Verbindung zwischen dem Elektromagneten 1 und dem Ventilgehäuse 5 herstellen. Der Vorsprung 16 steht von einer Stirnseite 18 des Ventilgehäuses 5 ab, an der der Anschlußteil 17 anliegt und der von einer zentralen Bohrung 19 des Ventilgehäuses 5 durchsetzt wird. Der Stößel 2 des Elektromagneten 1 ragt in die Bohrung 19 und liegt an der Stirnseite des Kolbens 3 an.At its end facing the electromagnet 1 Valve housing 5 has a thin-walled sleeve-shaped projection 16, which has a cylindrical connecting part 17 of the Grips electromagnet 1. The cylindrical projection 16 is flanged diagonally inwards and thus overlaps the connecting part 17, which is conical in this area is trained. It is also possible to use the cylindrical one Projection 16 of the valve housing 5 with over its circumference to provide protruding tongues arranged in a distributed manner, which are bent obliquely inwards. This too A simple, acting in the axial direction positive connection between the electromagnet 1 and manufacture the valve housing 5. The projection 16 protrudes from an end face 18 of the valve housing 5, to which the connecting part 17 rests and which of a penetrates central bore 19 of the valve housing 5 becomes. The plunger 2 of the electromagnet 1 protrudes into the Bore 19 and lies against the end face of the piston 3.

Der Kolben 3 ist spiegelsymmetrisch zu seiner Quermittelebene ausgebildet, so daß bei seinem Einbau in das Ventilgehäuse 5 nicht auf dessen Lage geachtet werden muß. Der Kolben 3 hat zwei mit Abstand voneinander liegende Ringstege 20 und 21, deren Breite geringfügig größer ist als die Breite der Arbeitsanschlüsse 10 und 11. In der in Fig. 2 dargestellten Mittelstellung des Kolbens 3 werden dadurch die beiden Arbeitsanschlüsse 10 und 11 durch die Ringstege 20, 21 des Kolbens 3 geschlossen.The piston 3 is mirror-symmetrical to its transverse central plane trained so that when installed in the Valve housing 5 is not paid attention to its position got to. The piston 3 has two spaced apart Ring webs 20 and 21, the width of which is slightly larger is the width of the working ports 10 and 11. In the middle position of the piston shown in FIG. 2 3, the two working connections 10 and 11 closed by the ring webs 20, 21 of the piston 3.

An dem vom Elektromagneten 1 abgewandten Ende ist das Ventilgehäuse 5 mit einem axial vorstehenden zylindrischen Vorsprung 22 versehen. In ihn werden zur Bildung von plastisch verformbaren Zungen 23 axiale Einschnitte eingebracht. Dadurch lassen sich die Zungen 23 radial nach innen verformen. Die Zungen 23 dienen zur Axialsicherung der Druckfeder 4. Durch unterschiedlich starke plastische Verformung können die Zungen 23 so abgebogen werden, daß die Druckfeder 4 die für den jeweiligen Einsatzfall erforderliche Vorspannkraft hat.At the end facing away from the electromagnet 1 Valve housing 5 with an axially projecting cylindrical Provide projection 22. In it become education of plastically deformable tongues 23 axial incisions brought in. This allows the tongues 23 to be radial deform inwards. The tongues 23 serve to secure the axles the compression spring 4. By different strengths plastic deformation, the tongues 23 can be bent be that the compression spring 4 for the respective application has the required preload.

Der Kolben 3 soll die in Fig. 2 dargestellte Mittelstellung bei einer vorgegebenen Stromstärke, mit welcher der Elektromagnet 1 beaufschlagt wird, einnehmen. In dieser Mittellage sind die Arbeitsanschlüsse 10, 11 des Ventilgehäuses 5 durch die beiden Ringstege 20, 21 des Kolbens 3 geschlossen. Bei der Montage der Ventileinheit wird der Elektromagnet 1 mit der entsprechenden Stromstärke beaufschlagt, wodurch der Stößel 2 entsprechend weit axial aus dem Elektromagneten 1 ausfährt und den Kolben 3 in Fig. 2 nach rechts verschiebt. Während der Strombeaufschlagung des Elektromagneten werden die Zungen 23 nunmehr so weit plastisch nach innen gebogen, bis die Ringstege 20, 21 des Kolbens 3 die Arbeitsanschlüsse 10, 11 verschließen. Auf diese Weise läßt sich die Ventileinheit bei der Montage sehr einfach und dennoch sehr genau so einstellen, daß bei der entsprechenden Stromstärke die Arbeitsanschlüsse auch zuverlässig geschlossen sind. Die Zungen 23 sichern somit nicht nur die Druckfeder 4 in ihrer Einbaulage, sondern dienen gleichzeitig auch als Einstellmittel, um die Ventileinheit in der beschriebenen Weise auf die entsprechende Stromstärke des Elektromagneten einzustellen. Während bei den herkömmlichen Ventilgehäusen zur Axialabstützung der Druckfeder 4 eine Einstellschraube erforderlich ist und ein entsprechendes Gewinde gefertigt werden muß, entfallen bei dem beschriebenen Ventilgehäuse die Einstellschraube sowie die Herstellung eines Gewindes. Bei dieser Ventileinheit werden somit ein teures Bauteil sowie eine aufwendige und dementsprechend kostspielige Fertigung vermieden, ohne daß sich dies nachteilig auf die Funktionsfähigkeit und insbesondere die Einstellung der Ventileinheit auswirkt.The piston 3 is intended to be in the central position shown in FIG. 2 at a given current with which the Electromagnet 1 is acted upon. In this The working connections 10, 11 of the valve housing are in the middle position 5 through the two ring webs 20, 21 of the piston 3 closed. When installing the valve unit the electromagnet 1 with the appropriate current acts, whereby the plunger 2 correspondingly far extends axially from the electromagnet 1 and the piston 3 shifts to the right in Fig. 2. During current application of the electromagnet, the tongues 23 now plastically bent inwards until the Ring webs 20, 21 of the piston 3, the working connections 10, 11 close. In this way, the valve unit very easy to assemble and still very easy set exactly so that at the appropriate current the work connections are also reliably closed are. The tongues 23 thus not only secure the Compression spring 4 in its installed position, but serve at the same time also as an adjustment means to move the valve unit in the way described to the appropriate amperage of the electromagnet. While with the conventional valve housings for axial support of the Compression spring 4 an adjusting screw is required and a corresponding thread has to be made the adjusting screw for the valve housing described as well as the production of a thread. At this Valve unit thus become an expensive component as well an elaborate and accordingly expensive production avoided without this adversely affecting the Functionality and in particular the setting of the Valve unit affects.

Da die beiden Ringstege 20, 21 mit Abstand von den Enden des Kolbens 3 liegen, ragt das eine Kolbenende 24 in die Druckfeder 4. Vorteilhaft entspricht der Außendurchmesser des Kolbenendes 24 dem Innendurchmesser der Druckfeder 4, die dadurch an diesem Kolbenende einwandfrei geführt wird.Since the two ring webs 20, 21 at a distance from the ends of the piston 3, the one piston end 24 projects into the Compression spring 4. The outer diameter advantageously corresponds of the piston end 24 the inner diameter of the compression spring 4, which is guided properly at this piston end becomes.

Die beschriebene Ventileinheit mit dem Elektromagneten 1 läßt sich aus nur sehr wenigen Bauteilen kostengünstig fertigen, montieren und einfach und kostengünstig in das Einbaugehäuse 6 einbauen. Insbesondere sind keine aufwendigen und teuren Verfahrensschritte bei der Herstellung des Einbaugehäuses 6 und des Ventilgehäuses 5 erforderlich.The valve unit described with the electromagnet 1 can be inexpensive from only a very few components manufacture, assemble and simple and inexpensive in it Install installation housing 6. In particular, they are not complex and expensive manufacturing process steps of the installation housing 6 and the valve housing 5 required.

Claims (9)

  1. A proportional solenoid-valve unit with an installation housing (6), in the receiving space (7) of which is fastened a valve housing (5) which is connected to an electromagnet (1) and which has a piston (3) displaceable by a tappet (2) of the electromagnet (1) against the force of at least one compression spring (4), characterized in that the receiving space (7) in the installation housing (6) has a diameter which is constant over its length, and the valve housing (5) is connected to the installation housing (6) and the electromagnet (1) by edgings (15, 16).
  2. A valve unit according to Claim 1, characterized in that the valve housing (5) is provided with at least one annular groove (14) into which the edging (15) of the installation housing (6) engages.
  3. A valve unit according to Claim 1 or 2, characterized in that the edging (15) is provided on a projection (9) of the installation housing (6).
  4. A valve unit according to one of Claims 1 to 3, characterized in that the edging (16) of the valve housing (5) is provided on an annular projection of the valve housing.
  5. A valve unit according to Claim 4, characterized in that the annular projection (16) of the valve housing (5) engages over an attachment part (17) of the electromagnet (1).
  6. A valve unit according to one of Claims 1 to 5, characterized in that the edging (15) of the installation housing (6) and the edging (16) of the valve housing (5) are provided at mutually opposite ends of the valve housing (5).
  7. A valve unit according to one of Claims 1 to 6, characterized in that the valve housing (5) has at least one plastically deformable portion (23) for supporting the compression spring (4).
  8. A valve unit according to Claim 7, characterized in that the plastically deformable portion (23) is a tongue bent out of an annular projection (22) of the valve housing (5).
  9. A valve unit according to one of Claims 1 to 8, characterized in that the piston (3) is made symmetrical with respect to its transverse median plane.
EP95100335A 1994-02-10 1995-01-12 Proportional solenoid-valve unit Expired - Lifetime EP0667458B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9402205U 1994-02-10
DE9402205U DE9402205U1 (en) 1994-02-10 1994-02-10 Proportional solenoid valve unit

Publications (2)

Publication Number Publication Date
EP0667458A1 EP0667458A1 (en) 1995-08-16
EP0667458B1 true EP0667458B1 (en) 1998-07-29

Family

ID=6904398

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100335A Expired - Lifetime EP0667458B1 (en) 1994-02-10 1995-01-12 Proportional solenoid-valve unit

Country Status (4)

Country Link
US (1) US5487410A (en)
EP (1) EP0667458B1 (en)
JP (1) JPH07224964A (en)
DE (2) DE9402205U1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634319A1 (en) * 1996-08-24 1998-02-26 Bosch Gmbh Robert Electro-hydraulic control device
DE19727180C2 (en) * 1997-06-26 2003-12-04 Hydraulik Ring Gmbh Hydraulic valve, in particular for controlling a camshaft adjustment in a motor vehicle
US5984259A (en) * 1997-11-26 1999-11-16 Saturn Electronics & Engineering, Inc. Proportional variable force solenoid control valve with armature damping
FR2817605B1 (en) * 2000-12-01 2005-05-20 Eaton Corp PROPORTIONAL SOLENOID VALVE FOR MOTOR COOLANT LIQUID CIRCUIT
JP2011077355A (en) * 2009-09-30 2011-04-14 Keihin Corp Linear solenoid and valve device using the same
CN101691890B (en) * 2009-10-13 2011-08-31 金仁召 Throttle valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282379B (en) * 1965-11-04 1968-11-07 Danfoss As Valve
US5259414A (en) * 1988-11-09 1993-11-09 Aisin Aw Co., Ltd Pressure control valve
JPH02129476A (en) * 1988-11-09 1990-05-17 Aisin Aw Co Ltd Pressure regulating valve
DE3917418A1 (en) * 1989-05-29 1990-12-06 Vickers Systems Gmbh Electrohydraulic control valve - has fail-safe position provided by fluid pressure acting on sliding control piston
US5218999A (en) * 1990-05-17 1993-06-15 Mitsubishi Denki K.K. Solenoid valve

Also Published As

Publication number Publication date
EP0667458A1 (en) 1995-08-16
JPH07224964A (en) 1995-08-22
US5487410A (en) 1996-01-30
DE9402205U1 (en) 1994-04-28
DE59502938D1 (en) 1998-09-03

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