DE10141134A1 - Electromagnetic valve for use in anti-skid braking systems has annular filter housing mounted below valve seat, filter cup containing filter plate being releasably attached to housing, forming premounted unit - Google Patents

Electromagnetic valve for use in anti-skid braking systems has annular filter housing mounted below valve seat, filter cup containing filter plate being releasably attached to housing, forming premounted unit

Info

Publication number
DE10141134A1
DE10141134A1 DE10141134A DE10141134A DE10141134A1 DE 10141134 A1 DE10141134 A1 DE 10141134A1 DE 10141134 A DE10141134 A DE 10141134A DE 10141134 A DE10141134 A DE 10141134A DE 10141134 A1 DE10141134 A1 DE 10141134A1
Authority
DE
Germany
Prior art keywords
filter
valve
ring
housing
valve seat
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Withdrawn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
DE10141134A
Other languages
German (de)
Inventor
Christoph Voss
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.)
Continental Teves AG and Co OHG
Original Assignee
Continental Teves AG and Co OHG
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 Continental Teves AG and Co OHG filed Critical Continental Teves AG and Co OHG
Priority to DE10141134A priority Critical patent/DE10141134A1/en
Publication of DE10141134A1 publication Critical patent/DE10141134A1/en
Withdrawn legal-status Critical Current

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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
    • F16K31/0686—Braking, pressure equilibration, shock absorbing
    • F16K31/0696—Shock absorbing, e.g. using a dash-pot
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems

Landscapes

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

Abstract

The electromagnetic valve for use in anti-skid braking systems has an annular filter housing (24) mounted below the valve seat (7). A filter cup (11) containing a filter plate (5) is releasably attached to the housing, forming a premounted unit.

Description

Die Erfindung betrifft ein Elektromagnetventil, insbesondere für hydraulische Bremsanlagen mit Schlupfregelung, nach dem Oberbegriff des Patentanspruchs 1.The invention relates to an electromagnetic valve, in particular for hydraulic brake systems with slip control, according to Preamble of claim 1.

Derartige konventionelle, hinreichend bekannte Ventile zur Durchflußsteuerung von Fluiden bei schlupfgeregelten hydrau­ lischen Bremsanlagen finden vielfältige praktische Verwen­ dung.Such conventional, well known valves for Flow control of fluids with slip-controlled hydrau Braking systems have a variety of practical uses dung.

Es sind bereits Elektromagnetventile des in Grundstellung geschlossenen Typs bekannt geworden, wozu beispielhaft auf die DE 199 36 711 A1 verwiesen wird. Darin sind Elektroma­ gnetventile der eingangs genannten Art beschrieben, die au­ ßen am Ventilsitz-Aufnahmekörper lediglich einen Ringfilter aufnehmen, so daß Verunreinigungen der Flüssigkeit beim Ab­ heben des Ventilschließgliedes von seinem Ventilsitz im Ven­ tilsitz-Aufnahmekörper in den Innenraum des Elektromagnet­ ventils eindringen können.There are already solenoid valves in the basic position closed type become known, for example on DE 199 36 711 A1 is referred to. There are electromas in it solenoid valves of the type mentioned, the au ß only a ring filter on the valve seat holder body record so that contamination of the liquid when Ab lift the valve closing member from its valve seat in the Ven tilsitz receiving body in the interior of the electromagnet valve can penetrate.

Daher ist es die Aufgabe der Erfindung, ein Elektromagnet­ ventil der in Grundstellung geschlossenen Ausführungsform dahingehend zu verbessern, daß unter Einhaltung eines rela­ tiv einfachen, miniaturisierten Aufbaus eine Verunreinigung des Elektromagnetventils vermieden wird, ohne dabei den Her­ stellaufwand zu erhöhen.Therefore, the object of the invention is an electromagnet valve of the closed embodiment in the basic position to improve that in compliance with a rela  tiv simple, miniaturized construction a contamination of the solenoid valve is avoided without sacrificing the Her increase the effort required.

Erfindungsgemäß wird die gestellte Aufgabe für ein Elektro­ magnetventil der eingangs genannten Art durch die kennzeich­ nenden Merkmale des Patentanspruchs 1 gelöst.According to the invention, the task is for an electric solenoid valve of the type mentioned by the character nenden features of claim 1 solved.

Durch die in den Unteransprüchen aufgezeigten Maßnahmen sind zweckmäßige Ausbildungen der Erfindung angegeben, die im Zu­ sammenhang mit den weiteren Merkmalen und Vorteilen der Er­ findung nachfolgend anhand zweier Zeichnungen gemäß den Fig. 1 und 2 näher dargestellt und erläutert werden.The measures set out in the subclaims provide expedient embodiments of the invention, which are shown and explained in connection with the other features and advantages of the invention based on two drawings according to FIGS . 1 and 2.

Es zeigen im einzelnen:The individual shows:

Fig. 1 eine Gesamtansicht für ein in Grundstellung geschlossenes Elektromagnetventils mit den erfindungswesentlichen Merkmalen zur Verwendung einer geeigneten Filterbaugruppe, Fig. 1 is an overall view of a closed basic position solenoid valve having the features essential to the invention for use of a suitable filter assembly,

Fig. 2 eine vergrößerte Detailansicht der vorgenannten Filterbaugruppe. Fig. 2 is an enlarged detail view of the aforementioned filter assembly.

Nachfolgend sollen zunächst die wesentlichen Merkmale der Erfindung anhand eines in Grundstellung normalerweise ge­ schlossenen Elektromagnetventils nach Fig. 1 explizit erläu­ tert werden. Im Anschluß an diese Erläuterung wird dazu die bestehende Filterbaugruppe des Ventils anhand der Fig. 2 er­ läutert, die vergrößert abgebildet wurde. In the following, the essential features of the invention are to be explicitly explained using a normally closed electromagnetic valve according to FIG. 1. Following this explanation, the existing filter assembly of the valve is explained with reference to FIG. 2, which has been shown enlarged.

Das Elektromagnetventil nach Fig. 1 zeigt einen als Kalt­ fließpreßteil gefertigten Magnetanker 13, einen aus einem Kaltfließpreßteil gefertigten Magnetkern 25 und einen topfförmigen Ventilsitz-Aufnahmekörper 7, der am Ventilge­ häuse 3 befestigt ist. Soweit dünnwandige Hülsenteile zur Anwendung gelangen, werden sie zweckmäßigerweise als Tiefziehteile oder ggf. auch als Rundknetteile ausgeführt. Im einzelnen zeigt hierzu die Fig. 1 ein hülsenförmiges, als Tiefziehteil ausgebildetes Ventilgehäuse 3, dessen beide Endabschnitte Führungsflächen 3a, 3b bilden, die auf der ei­ nen Seite von einem Magnetkern 25 und auf der anderen Seite von dem topfförmigen Ventilsitz-Aufnahmekörper 7 begrenzt werden. Beide am hülsenförmigen Ventilgehäuse 3 angebrach­ ten Teile 25, 7 sind vorzugsweise mittels einer Schweißver­ bindung 19 dauerhaft befestigt. Innerhalb dieser vorbe­ schriebenen Teile befindet sich ein Magnetanker 13, der an seiner Wandung entweder mit Druckausgleichsnuten oder abbil­ dungsgemäß mit einem Kantprofil versehen ist, um einen unge­ hinderten hydraulischen Druckausgleich im Ventil zu gewähr­ leisten. Der Magnetanker 13 als auch der Magnetkern 25 sind als Kaltfließpreßteile ausgeführt, wozu sich insbesondere ein Werkstoff mit der Kennzeichnung X8Cr17 oder alternativ dazu ein Werkstoff gemäß der Kennzeichnung X6Cr17 eignet. Das hülsenförmige Ventilgehäuse 3 besteht vorzugsweise aus austenitischem Stahl gemäß der Klassifikation 1.43.03. Glei­ cher Werkstoff gelangt zur Anwendung für den topfförmigen Ventilsitz-Aufnahmekörper 7. Der Magnetkern 25 ist in Form eines Stopfens in den offenen Bereich des hülsenförmigen Ventilgehäuses 3 eingepreßt und nach den erforderlichen Ein­ stellmaßnahmen mittels einer Schweißnaht 19 dauerhaft fi­ xiert. Durch entsprechende Vorsprünge 10 zwischen dem Ma­ gnetkern 25 und dem Magnetanker 13, die sich entweder am ei­ nen oder am anderen vorgenannten Teil 13, 25 befinden kön­ nen, wird das sog. Magnetankerkleben verhindert. Zur platz­ sparenden Aufnahme und Führung der Rückstellfeder 8 ist ent­ sprechend der Abbildung der Magnetanker 13 mit einer Längs­ bohrung versehen. Alle beschriebenen Teile befinden sich in einer koaxialen Lage.The solenoid valve according to Fig. 1 shows a cold-extruded part made as a solenoid armature 13, a magnetic core made of a Kaltfließpreßteil 25 and a cup-shaped valve seat-holding body 7, the housing 3 is secured on Ventilge. As far as thin-walled sleeve parts are used, they are expediently designed as deep-drawn parts or, if appropriate, also as round kneaded parts. In particular, this Figure 1 shows the FIG. A sleeve-shaped, formed as a deep-drawn part valve body 3 whose both end portions of the guide surfaces 3 a, 3 b form on the egg NEN side of a magnetic core 25 and on the other side of the cup-shaped valve seat receiving body 7 be limited. Both on the sleeve-shaped valve housing 3 attached parts 25 , 7 are preferably permanently connected by means of a welded connection 19 . Within these pre-written parts is a magnet armature 13 , which is provided on its wall either with pressure compensation grooves or according to the drawing with an edge profile in order to ensure unhindered hydraulic pressure compensation in the valve. The magnet armature 13 and the magnet core 25 are designed as cold extrusion parts, for which purpose a material with the identification X8Cr17 or alternatively a material according to the identification X6Cr17 is suitable. The sleeve-shaped valve housing 3 is preferably made of austenitic steel according to the classification 1.43.03. The same material is used for the cup-shaped valve seat receiving body 7 . The magnetic core 25 is pressed in the form of a plug into the open area of the sleeve-shaped valve housing 3 and, after the necessary adjustment measures, is permanently fixed by means of a weld 19 . Appropriate projections 10 between the magnetic core 25 and the magnet armature 13 , which can be located either on the egg or on the other aforementioned part 13 , 25 , prevent the so-called magnet armature bonding. To save space and guide the return spring 8 is accordingly the illustration of the magnet armature 13 is provided with a longitudinal bore. All parts described are in a coaxial position.

Das Elektromagnetventil ist unmittelbar am Rand 20 des topfförmigen Ventilsitz-Aufnahmekörpers 7 mittels einer Außenverstemmung im Ventilträger 6 befestigt. Der Topf des Ventilsitz-Aufnahmekörpers 7 weist zumindest eine radial als auch axial verlaufende Öffnung 26 auf, wobei die in Ven­ tillängsachse angeordnete Ventilsitzöffnung 1 mittels eines Prägeverfahrens den eigentlichen Kegeldichtsitz für das Ven­ tilschließglied 9 bildet, während die quer dazu den Ventil­ sitz-Aufnahmekörper 7 durchdringende Öffnung 26 in der Re­ gel als Blendenbohrung ausgeführt ist, um in der offenen Ventilschaltstellung eine Druckmittelverbindung zwischen den unterhalb und oberhalb des Ventilschließgliedes 9 gelegenen Kanälen 2, 14 im Ventilträger 6 herzustellen. Als Ventil­ schließglied 9 wird vorzugsweise eine im Magnetanker 13 ver­ stemmt befestigte Kugel verwendet, die unter Wirkung einer zwischen dem Magnetanker 13 und dem Magnetkern 25 befindli­ che Rückstellfeder 8 auf die Ventilsitzfläche des Ventil­ schließkörpers 9 gepreßt ist. Die Abdichtung des topfförmi­ gen Ventilsitz-Aufnahmekörpers 7 in einer Stufenbohrung des Ventilträgers 6 geschieht mittels zweier O-Ringe 15, 22, wovon der erste O-Ring 15 zwischen dem Ventilsitz-Aufnah­ mekörpers 7 und einem topfförmigen Ringfiltergehäuse 24 ein­ gelegt ist, während der zweite O-Ring 22 zwischen dem Ring­ filtergehäuse 24 und der Stufenbohrung des Ventilträgers 6 eingespannt ist. Das Ringfiltergehäuse 24 erstreckt sich so­ mit entlang dem Ventilsitz-Aufnahmekörper 7 zwischen den beiden O-Ringen 15, 22, wobei ein zusätzlicher Halt und ggf. auch ein Transportschutz für den O-Ring 15 vor der eigentli­ chen Montage in der Stufenbohrung des Ventilträgers 6 gege­ ben ist. Das Elektromagnetventil ist nach außen hin ledig­ lich über eine einfache Außenverstemmung im Ventilträger 6 abgedichtet und befestigt, während die durch die O-Ringe 14, 22 vorgegebene untere Abdichtung des Ventilsitz- Aufnahmekörpers 7 im Ventilträger 6 einen Kurzschlußstrom zwischen dem unterhalb des Ventilschließgliedes 9 in den Ventilträger 6 einmündenden Kanal 2 und dem auf Höhe des Ringfilters 23 gelegenen Querkanals 14 verhindert. Am Boden des aus Kunststoff durch Spritzgießen hergestellten Filter­ topfs 11 ist ein Plattenfilter 5 integriert. Der Filtertopf 11 ist vorteilhaft mittels einer Preßverbindung an einem Bund am Boden des Ringfiltergehäuses 24 fixiert. In der ab­ bildungsgemäßen Montagestellung des Elektromagnetventils im Ventilträger 6 ist der am Boden des Ringfiltergehäuses 24 angeordnete O-Ring 22 zwischen der Stufenbohrung des Ventil­ trägers 6 und dem Ringfiltergehäuse 24 derart verformt, daß der O-Ring 22 eine entsprechenden Dicht- als auch Haltekraft auf den Filtertopf 11 ausübt. Dies ist durch die Schräg­ schultergeometrie am Boden des Ringfiltergehäuses 24 begün­ stigt, so daß sich der ursprüngliche Kreisquerschnitt des O- Rings 22 unter der Wirkung der Montagekraft am Elektroma­ gnetventil zu einem Dreiecksprofil verformt. Gleiches ge­ schieht mit dem an der Innenschrägschulter des Ringfilterge­ häuses 24 angeordneten O-Rings 15, der über die an der Ge­ häusestufe des Ventilsitz-Aufnahmekörpers 7 wirksame Monta­ gekraft ebenso sein Dichtprofil ändert. Das Ringfiltergehäu­ se 24 ist somit erfindungsgemäß mit dem Filtertopf 11 und den beiden Ringdichtungen zur Filterbaugruppe 12 zusammenge­ faßt, wobei die Filterbaugruppe 12 bis zur bereits erwähnten Verformung der ersten Ringdichtung (O-Ring 15) und der Be­ rührung des Bodens im Ringfiltergehäuse 24 auf den Ventil­ sitz-Aufnahmekörper 7 aufgeschoben ist.The electromagnetic valve is fastened directly on the edge 20 of the cup-shaped valve seat receiving body 7 by means of an external caulking in the valve carrier 6 . The pot of the valve seat receiving body 7 has at least one radially and axially extending opening 26 , the valve seat opening 1 arranged in the longitudinal axis of Ven forming the actual cone sealing seat for the valve closing member 9 by means of an embossing process, while the valve seat receiving body 7 transversely thereto penetrating opening 26 is designed as a restrictor bore in the gel Re to produce in the open valve switching position, a pressure fluid connection between the above and below the valve closure member 9 located channels 2, 14 in the valve support. 6 As a valve closing member 9 is preferably a ver mounted in the magnet armature 13 fixed ball is used, which is pressed under the action of a between the magnet armature 13 and the magnetic core 25 in the surface return spring 8 on the valve seat surface of the valve closing body 9 . The sealing of the cup-shaped valve seat receptacle body 7 in a stepped bore of the valve carrier 6 is done by means of two O-rings 15 , 22 , of which the first O-ring 15 between the valve seat-receiving body 7 and a cup-shaped ring filter housing 24 is inserted during the second O-ring 22 is clamped between the ring filter housing 24 and the stepped bore of the valve carrier 6 . The ring filter housing 24 thus extends along the valve seat receptacle 7 between the two O-rings 15 , 22 , with an additional hold and possibly also a transport protection for the O-ring 15 prior to the actual assembly in the stepped bore of the valve carrier 6 given is. The solenoid valve is sealed and fastened to the outside only by a simple external caulking in the valve carrier 6 , while the lower seal of the valve seat receiving body 7 in the valve carrier 6 , which is predetermined by the O-rings 14 , 22, causes a short-circuit current between that below the valve closing member 9 in the Valve carrier 6 opening channel 2 and the transverse channel 14 located at the level of the ring filter 23 prevented. At the bottom of the filter pot 11 made of plastic by injection molding, a plate filter 5 is integrated. The filter bowl 11 is advantageously fixed by means of a press connection to a collar on the bottom of the ring filter housing 24 . In the ab education the mounted position of the solenoid valve in the valve carrier 6 is arranged at the bottom of the ring filter housing 24. O-ring 22 is interposed between the stepped bore of the valve carrier 6 and the ring-shaped filter housing 24 is deformed such that the O-ring 22 has a corresponding sealing and holding force on exerts the filter bowl 11 . This is begün by the oblique shoulder geometry at the bottom of the ring filter housing 24 so that the original circular cross section of the O-ring 22 deforms under the action of the assembly force on the electromagnetic valve to a triangular profile. The same thing happens with the arranged on the inner sloping shoulder of the Ringfilterge housing 24 O-rings 15 , the force on the Ge on the housing stage of the valve seat receiving body 7 force also changes its sealing profile. The Ringfiltergehäu se 24 is thus summarized according to the invention with the filter bowl 11 and the two ring seals to the filter assembly 12 , the filter assembly 12 up to the already mentioned deformation of the first ring seal (O-ring 15 ) and the loading of the bottom in the ring filter housing 24 on the Valve seat-receiving body 7 is pushed.

Weitere Einzelheiten der Erfindung werden nachfolgend anhand der Darstellung der Filterbaugruppe 12 gemäß der Fig. 2 er­ läutert.Further details of the invention are explained below with reference to the representation of the filter assembly 12 according to FIG. 2.

Die Fig. 2 zeigt am Boden des Ringfiltergehäuses 24 in lös­ barer Verbindung den Filtertopf 11 angeordnet, der einen Plattenfilter 5 aufweist. Das Ringfiltergehäuse 24 bildet mit dem Filtertopf 11 eine eigenständig handhabbare, vormon­ tierte Filterbaugruppe 12, die im Bereich des Filtertopfs 11 mit einer zweiten Ringdichtung versehen ist, welche zwischen der Filterbaugruppe 12 und einer Aufnahmebohrung 18 im Ven­ tilträger 6 eine druckmitteldichte Verbindung herstellt. Beide Ringdichtungen sind als O-Ringe 15, 22 ausgeführt, wo­ bei die erste Ringdichtung an einer Innenschrägschulter 27 und die zweite Ringdichtung an einer Außenschrägschulter 28 des Ringfiltergehäuses 24 angeordnet ist. Am Boden des Ring­ filtergehäuses 24 ist ein Bund 29 angebracht, der mit dem Filtertopf 11 eine Preßverbindung bildet. Der Bund 29 er­ streckt sich in den Bereich der Außenschrägschulter 28. Der Rand des Filtertopfs 11 ist mit einer Fase 30 versehen, de­ ren Fasenwinkel dem Neigungswinkel der Außenschrägschulter 28 entspricht. Das Ringfiltergehäuse 24 sind mit dem Filter­ topf 11 und den beiden Ringdichtungen zur Filterbaugruppe 12 zusammengefaßt, die bis zur Verformung der ersten Ringdich­ tung und der Berührung des Bodens im Ringfiltergehäuse 24 auf den Ventilsitz-Aufnahmekörper 7 aufgeschoben ist. Durch die gewählte Anordnung der O-Ringe 15, 22 lassen sich die an den Ringdichtungen wirksamen Einpreß- als auch Haltekräfte auf ein zulässiges Maß begrenzen. Die vorgeschlagene Filter­ baugruppe 12 ist automatengerecht gestaltet und kann durch die vorgeschlagene Dichtringanordnung fertigungstechnisch grob toleriert werden. Die Filterbaugruppe 12 läßt sich da­ her besonders kostengünstig, insbesondere mittels Kun­ stoffspritzgießen herstellen. Fig. 2 shows at the bottom of the ring filter housing 24 in releasable connection, the filter bowl 11 arranged, which has a plate filter 5 . The ring filter housing 24 forms with the filter bowl 11 an independently manageable, prefabricated filter assembly 12 , which is provided in the area of the filter bowl 11 with a second ring seal, which creates a pressure-tight connection between the filter assembly 12 and a receiving bore 18 in the valve carrier 6 . Both ring seals are designed as O-rings 15 , 22 , where the first ring seal is arranged on an inner bevel shoulder 27 and the second ring seal is arranged on an outer bevel shoulder 28 of the ring filter housing 24 . At the bottom of the ring filter housing 24 , a collar 29 is attached, which forms a press connection with the filter bowl 11 . The collar 29 extends into the area of the outer bevel shoulder 28 . The edge of the filter bowl 11 is provided with a chamfer 30 , de ren chamfer angle corresponds to the angle of inclination of the outer bevel shoulder 28 . The ring filter housing 24 are combined with the filter pot 11 and the two ring seals to the filter assembly 12 , the device until the deformation of the first ring seal and the contact with the ground in the ring filter housing 24 is pushed onto the valve seat receiving body 7 . Due to the selected arrangement of the O-rings 15 , 22 , the press-in and holding forces effective on the ring seals can be limited to a permissible level. The proposed filter assembly 12 is designed to be automated and can be roughly tolerated in terms of production technology by the proposed sealing ring arrangement. The filter assembly 12 can be manufactured here particularly inexpensively, in particular by means of plastic injection molding.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11

Ventilsitzöffnung
Valve seat opening

22

Kanal
channel

33

Ventilgehäuse
valve housing

44

Ventilstößel
tappet

55

Plattenfilter
plate filters

66

Ventilträger
valve

77

Ventilsitz-Aufnahmekörper
Valve seat receiving body

88th

Rückstellfeder
Return spring

99

Ventilschließglied
Valve closure member

1010

Vorsprung
head Start

1111

Filtertopf
filter bowl

1212

Filterbaugruppe
filter assembly

1313

Magnetanker
armature

1414

Querkanal
Querkanal

1515

O-Ring
O-ring

1616

Hohlraum
cavity

1717

Verstemmung
caulking

1818

Aufnahmebohrung
location hole

1919

Stufe
step

2020

Rand
edge

2121

Schweißverbindung
welded joint

2222

O-Ring
O-ring

2323

Ringfilter
ring filter

2424

Ringfiltergehäuse
Ring filter housing

2525

Magnetkern
magnetic core

2626

Öffnung
opening

2727

Innenschrägschulter
Internal helical shoulder

2828

Außenschrägschulter
External oblique shoulder

2929

Bund
Federation

3030

Fase
chamfer

Claims (5)

1. Elektromagnetventil, insbesondere für schlupfgeregelte Radbremsen, mit einem in einem Ventilgehäuse (3) geführ­ ten Ventilstößel (4), der ein Ventilschließglied (9) aufweist, mit einem dem Ventilschließglied (9) zugewand­ ten Ventilsitz-Aufnahmekörper (7), der mit dem Ventil­ gehäuse (3) eine eigenständig handhabbare Unterbaugruppe bildet, sowie mit einem den Ventilstößel (4) betätigen­ den Magnetanker (13), der mittels einer am Ventilgehäuse (3) angeordneten Ventilspule elektromagnetisch betätig­ bar ist, wobei der Ventilsitz-Aufnahmekörper (7) an seiner Wandung ein Ringfiltergehäuse (24) und eine erste Ringdichtung aufnimmt, die zwischen dem Ringfiltergehäu­ se (24) und dem Ventilsitz-Aufnahmekörper (7) angeordnet ist, dadurch gekennzeichnet, daß am Boden des Ringfil­ tergehäuses (24) in lösbarer Verbindung ein Filtertopf (11) angeordnet ist, der einen Plattenfilter (5) auf­ weist, und daß das Ringfiltergehäuse (24) mit dem Filter­ topf (11) eine eigenständig handhabbare, vormontierte Filterbaugruppe (12) bildet, die im Bereich des Filter­ topfs (11) mit einer zweiten Ringdichtung versehen ist, welche zwischen der Filterbaugruppe (12) und einer Auf­ nahmebohrung im Ventilträger (6) eine druckmitteldichte Verbindung herstellt.1. Solenoid valve, in particular for slip-controlled wheel brakes, with a valve tappet ( 4 ) in a valve housing ( 3 ), which has a valve closing member ( 9 ), with a valve closing member ( 9 ) facing valve seat receiving body ( 7 ) with the valve housing ( 3 ) forms an independently manageable subassembly, and with a valve tappet ( 4 ) actuating the magnet armature ( 13 ), which can be actuated electromagnetically by means of a valve coil arranged on the valve housing ( 3 ), the valve seat receiving body ( 7 ) on its wall accommodates a ring filter housing ( 24 ) and a first ring seal, which is arranged between the Ringfiltergehäu se ( 24 ) and the valve seat receiving body ( 7 ), characterized in that at the bottom of the Ringfil tergehäuses ( 24 ) in releasable connection a filter bowl ( 11 ) is arranged, which has a plate filter ( 5 ), and that the ring filter housing ( 24 ) with the filter pot ( 11 ) forms an independently manageable, pre-assembled filter assembly ( 12 ), which is provided in the area of the filter pot ( 11 ) with a second ring seal, which between the filter assembly ( 12 ) and a receiving bore in the valve carrier ( 6 ) provides a pressure-tight connection manufactures. 2. Elektromagnetventil nach Anspruch 1, dadurch gekenn­ zeichnet, daß beide Ringdichtungen vorzugsweise als O- Ringe (15, 22) ausgeführt sind, wobei die erste Ring­ dichtung an einer Innenschrägschulter (27) und die zwei­ te Ringdichtung an einer Außenschrägschulter (28) des Ringfiltergehäuses (24) angeordnet ist. 2. Solenoid valve according to claim 1, characterized in that both ring seals are preferably designed as O-rings ( 15 , 22 ), the first ring seal on an inner bevel shoulder ( 27 ) and the two te ring seal on an outer bevel shoulder ( 28 ) of Ring filter housing ( 24 ) is arranged. 3. Elektromagnetventil nach Anspruch 1 oder 2, dadurch ge­ kennzeichnet, daß am Boden des Ringfiltergehäuses (24) ein Bund (29) angebracht ist, der mit dem Filtertopf (11) eine Preßverbindung bildet.3. Solenoid valve according to claim 1 or 2, characterized in that a collar ( 29 ) is attached to the bottom of the ring filter housing ( 24 ) which forms a press connection with the filter bowl ( 11 ). 4. Elektromagnetventil nach Anspruch 3, dadurch gekenn­ zeichnet, daß sich der Bund (29) in den Bereich der Au­ ßenschrägschulter (28) erstreckt, und daß der Rand des Filtertopfs (11) mit einer Fase (30) versehen ist, deren Fasenwinkel dem Neigungswinkel der Außenschrägschulter (28) entspricht.4. Solenoid valve according to claim 3, characterized in that the collar ( 29 ) in the region of the outside ßrägschulter ( 28 ), and that the edge of the filter bowl ( 11 ) is provided with a chamfer ( 30 ), the bevel angle Inclination angle of the outer bevel shoulder ( 28 ) corresponds. 5. Elektromagnetventil nach einem der vorangegangenen An­ sprüche, dadurch gekennzeichnet, daß das Ringfilterge­ häuse (24) mit dem Filtertopf (11) und den beiden Ring­ dichtungen zur Filterbaugruppe (12) zusammengefaßt sind, und daß die Filterbaugruppe (12) bis zur Verformung der ersten Ringdichtung und der Berührung des Bodens im Ringfiltergehäuse (24) auf den Ventilsitz-Aufnahmekörper (7) aufgeschoben ist.5. Solenoid valve according to one of the preceding claims, characterized in that the ring filter housing ( 24 ) with the filter bowl ( 11 ) and the two ring seals for the filter assembly ( 12 ) are combined, and that the filter assembly ( 12 ) until the deformation of the first ring seal and the contact of the bottom in the ring filter housing ( 24 ) is pushed onto the valve seat receiving body ( 7 ).
DE10141134A 2001-01-12 2001-08-22 Electromagnetic valve for use in anti-skid braking systems has annular filter housing mounted below valve seat, filter cup containing filter plate being releasably attached to housing, forming premounted unit Withdrawn DE10141134A1 (en)

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DE10141134A DE10141134A1 (en) 2001-01-12 2001-08-22 Electromagnetic valve for use in anti-skid braking systems has annular filter housing mounted below valve seat, filter cup containing filter plate being releasably attached to housing, forming premounted unit

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DE10101181 2001-01-12
DE10141134A DE10141134A1 (en) 2001-01-12 2001-08-22 Electromagnetic valve for use in anti-skid braking systems has annular filter housing mounted below valve seat, filter cup containing filter plate being releasably attached to housing, forming premounted unit

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DE10141134A Withdrawn DE10141134A1 (en) 2001-01-12 2001-08-22 Electromagnetic valve for use in anti-skid braking systems has annular filter housing mounted below valve seat, filter cup containing filter plate being releasably attached to housing, forming premounted unit

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10214876A1 (en) * 2002-04-04 2003-10-16 Zahnradfabrik Friedrichshafen Electromagnetic on-off valve for triggering systems in a motor vehicle automatic gearbox parking brake needing accurate control because of their sensitivity has a cutout blade in a casing.
WO2004033945A1 (en) * 2002-09-27 2004-04-22 Continental Teves Ag & Co. Ohg Solenoid valve
US6953183B2 (en) 2003-04-18 2005-10-11 Mitsubishi Denki Kabushiki Kaisha Proportional solenoid valve
DE102005027617A1 (en) * 2004-07-29 2006-03-23 Ina-Schaeffler Kg ring filter
WO2004055420A3 (en) * 2002-12-13 2007-04-19 Continental Teves Ag & Co Ohg Electromagnetic valve
WO2012156341A1 (en) * 2011-05-17 2012-11-22 Continental Teves Ag & Co. Ohg Solenoid valve, in particular for slip-regulated motor vehicle brake systems

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4441150A1 (en) * 1994-11-18 1996-05-23 Teves Gmbh Alfred Pressure control valve
DE19635693A1 (en) * 1996-09-03 1998-03-05 Bosch Gmbh Robert Solenoid valve for a slip-controlled, hydraulic vehicle brake system
DE19710353A1 (en) * 1997-03-13 1998-09-17 Bosch Gmbh Robert Solenoid valve with integrated check valve
DE19733660A1 (en) * 1997-08-04 1999-02-25 Bosch Gmbh Robert Electromagnetic pressure control valve
DE19847304A1 (en) * 1998-10-14 2000-05-04 Bosch Gmbh Robert Electromagnetically actuated regulating valve has delivery channel choke to reduce pressure at closure element with hydraulically parallel choke bores connecting feed and load channels
DE19928748A1 (en) * 1999-03-26 2000-09-28 Continental Teves Ag & Co Ohg Electromagnetic valve, especially for hydraulic braking system with slip control, has valve seat on end of annular part facing armature, valve rod band forming valve closure element
DE19943532A1 (en) * 1999-05-14 2000-11-16 Continental Teves Ag & Co Ohg Electromagnetic valve has valve piston and valve seat body in form of cold-drawn components that are inserted into valve housing from direction remote from magnet armature
DE19936711A1 (en) * 1999-06-23 2001-01-11 Continental Teves Ag & Co Ohg Solenoid valve, especially for hydraulic brake systems with slip control
DE19951665A1 (en) * 1999-10-26 2001-05-03 Continental Teves Ag & Co Ohg Solenoid valve, especially for hydraulic brake systems with slip control
DE19955886A1 (en) * 1999-11-20 2001-05-23 Bosch Gmbh Robert Solenoid valve with a check valve
DE19955888A1 (en) * 1999-11-20 2001-05-23 Bosch Gmbh Robert Magnetic valve for slip-free hydraulic braking system for car comprises main valve and check valve with rigid valve body and tapering hollow valve seat, valve body being fitted with elastomeric sealing ring
DE10002269A1 (en) * 2000-01-20 2001-07-26 Bosch Gmbh Robert Magnetic valve for slip-regulated hydraulic vehicle brake unit, with valve seat part projecting from base body with seal on it
DE10046046A1 (en) * 2000-02-23 2001-08-30 Continental Teves Ag & Co Ohg Electromagnetic valve e.g. for motor vehicle ABS braking system, has valve carrier and valve seat body fabricated by the deep-drawing method

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4441150A1 (en) * 1994-11-18 1996-05-23 Teves Gmbh Alfred Pressure control valve
DE19635693A1 (en) * 1996-09-03 1998-03-05 Bosch Gmbh Robert Solenoid valve for a slip-controlled, hydraulic vehicle brake system
DE19710353A1 (en) * 1997-03-13 1998-09-17 Bosch Gmbh Robert Solenoid valve with integrated check valve
DE19733660A1 (en) * 1997-08-04 1999-02-25 Bosch Gmbh Robert Electromagnetic pressure control valve
DE19847304A1 (en) * 1998-10-14 2000-05-04 Bosch Gmbh Robert Electromagnetically actuated regulating valve has delivery channel choke to reduce pressure at closure element with hydraulically parallel choke bores connecting feed and load channels
DE19928748A1 (en) * 1999-03-26 2000-09-28 Continental Teves Ag & Co Ohg Electromagnetic valve, especially for hydraulic braking system with slip control, has valve seat on end of annular part facing armature, valve rod band forming valve closure element
DE19943532A1 (en) * 1999-05-14 2000-11-16 Continental Teves Ag & Co Ohg Electromagnetic valve has valve piston and valve seat body in form of cold-drawn components that are inserted into valve housing from direction remote from magnet armature
DE19936711A1 (en) * 1999-06-23 2001-01-11 Continental Teves Ag & Co Ohg Solenoid valve, especially for hydraulic brake systems with slip control
DE19951665A1 (en) * 1999-10-26 2001-05-03 Continental Teves Ag & Co Ohg Solenoid valve, especially for hydraulic brake systems with slip control
DE19955886A1 (en) * 1999-11-20 2001-05-23 Bosch Gmbh Robert Solenoid valve with a check valve
DE19955888A1 (en) * 1999-11-20 2001-05-23 Bosch Gmbh Robert Magnetic valve for slip-free hydraulic braking system for car comprises main valve and check valve with rigid valve body and tapering hollow valve seat, valve body being fitted with elastomeric sealing ring
DE10002269A1 (en) * 2000-01-20 2001-07-26 Bosch Gmbh Robert Magnetic valve for slip-regulated hydraulic vehicle brake unit, with valve seat part projecting from base body with seal on it
DE10046046A1 (en) * 2000-02-23 2001-08-30 Continental Teves Ag & Co Ohg Electromagnetic valve e.g. for motor vehicle ABS braking system, has valve carrier and valve seat body fabricated by the deep-drawing method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10214876A1 (en) * 2002-04-04 2003-10-16 Zahnradfabrik Friedrichshafen Electromagnetic on-off valve for triggering systems in a motor vehicle automatic gearbox parking brake needing accurate control because of their sensitivity has a cutout blade in a casing.
WO2004033945A1 (en) * 2002-09-27 2004-04-22 Continental Teves Ag & Co. Ohg Solenoid valve
WO2004055420A3 (en) * 2002-12-13 2007-04-19 Continental Teves Ag & Co Ohg Electromagnetic valve
US6953183B2 (en) 2003-04-18 2005-10-11 Mitsubishi Denki Kabushiki Kaisha Proportional solenoid valve
DE10353840B4 (en) * 2003-04-18 2007-02-01 Mitsubishi Denki K.K. Proportional solenoid valve
DE102005027617A1 (en) * 2004-07-29 2006-03-23 Ina-Schaeffler Kg ring filter
WO2012156341A1 (en) * 2011-05-17 2012-11-22 Continental Teves Ag & Co. Ohg Solenoid valve, in particular for slip-regulated motor vehicle brake systems

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