EP0929429A1 - Valve arrangement, in particular electromagnetic valve arrangement for slip-controlled motor vehicle brake systems - Google Patents

Valve arrangement, in particular electromagnetic valve arrangement for slip-controlled motor vehicle brake systems

Info

Publication number
EP0929429A1
EP0929429A1 EP97948767A EP97948767A EP0929429A1 EP 0929429 A1 EP0929429 A1 EP 0929429A1 EP 97948767 A EP97948767 A EP 97948767A EP 97948767 A EP97948767 A EP 97948767A EP 0929429 A1 EP0929429 A1 EP 0929429A1
Authority
EP
European Patent Office
Prior art keywords
valve
seat body
valve arrangement
opening
check valve
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Withdrawn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
EP97948767A
Other languages
German (de)
French (fr)
Inventor
André F. L. GOOSSENS
Willy Dewachter
Antoine Rottiers
Alois Hoffmann
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
Publication of EP0929429A1 publication Critical patent/EP0929429A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/025—Electrically controlled valves
    • B60T15/028—Electrically controlled valves in hydraulic 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
    • 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
    • B60T8/365—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems combining a plurality of functions in one unit, e.g. pressure relief
    • 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
    • Y10T137/87265—Dividing into parallel flow paths with recombining
    • Y10T137/87507—Electrical actuator
    • 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
    • Y10T137/87265—Dividing into parallel flow paths with recombining
    • Y10T137/87555—Having direct response valve [e.g., check valve, etc.]
    • Y10T137/87563—With reverse flow direction

Definitions

  • Valve arrangement in particular electromagnetic valve arrangement for slip-controlled motor vehicle brake systems
  • the invention relates to a valve arrangement, in particular an electromagnetic valve arrangement for slip-controlled motor vehicle brake systems according to the preamble of claim 1.
  • FIG. 1 is a plan view of the check valve shown in FIG. 1,
  • Fig. 3 shows an alternative embodiment for the arrangement of a check valve in the valve receiving body.
  • valve 1 shows, on a considerably enlarged scale, a section of a valve arrangement consisting of a rotationally symmetrical valve housing 12, in the valve receiving bore 8 of which a disk-shaped valve seat body 4 and a disk-shaped check valve 1 are fastened.
  • the fastening of both parts can preferably be done by caulking the valve housing 12, wherein in the present exemplary embodiment the caulking of the housing material of the valve seat body 4 presses the check valve 1 against a step of the valve receiving bore 8.
  • 1 shows the closed position of the check valve 1, in which the sealing surface 6 facing the valve seat body 4 closes the bypass openings 5 in the valve seat body 4 over the entire surface.
  • valve closing member 7 is located on the side facing away from the check valve 1 on the valve seat body 4 and closes the opening in the event of electromagnetic excitation 3, which is bypassed at a corresponding hydraulic pressure difference at the check valve 1 by the sealing surface 6 lifts off the bypass openings 5.
  • a pressure medium connection between the pressure chambers located above and below the valve seat body 4 is then made possible via the central passage opening 2 as well as along the slot 11 in the check valve 1.
  • FIG. 2 shows, with reference to FIG. 1, only the check valve 1 according to the invention in a plan view, so that the slot 11 which can initially only be seen as a bore in the check valve 1 in FIG. 1 can now be clearly recognized as an opening running in the form of a segment of a circle.
  • an elastic, web-shaped section 10 extends, which connects the central section to the fastening ring 9.
  • the check valve 1 thus has a first outer section which acts as a fastening ring 9 and which is connected via the elastic second web-shaped section 10 to the central section having the sealing surface 6.
  • This center section acts as it were via the elastic web-shaped section 10 as a spring tongue in order to lift off the end face of the valve seat body 4 as required due to a hydraulic force acting on it.
  • the check valve 1 shown as a plate check valve is preferably made of spring steel or a comparable, heat-treated sheet. However, it is also conceivable to use other alternative materials with corresponding spring properties.
  • FIGS. 3 shows an alternative arrangement and embodiment of the check valve 1, which essentially has a disk-shaped sealing surface 6, which is guided axially movably with its entire surface between the valve seat body 4 and the end region of the valve receiving bore 8 in the valve housing 12.
  • its disc diameter is selected to be correspondingly smaller than the diameter of the valve receiving bore 8.
  • the check valve 1 is in the operating rest position under the action of gravity either on the ring end section 13 of the valve receiving bore 8 shown in the illustration on, or with a hanging valve arrangement on the valve seat body 4. Since this check valve 1 is also shown in FIGS.
  • FIG. 4 shows an embodiment of the invention that has been further improved compared to FIG. 3.
  • the plate-shaped check valve 1 has the design known from FIG. 3.
  • the valve seat body 4 is also identical to the construction shown in FIG. 3. It should be noted that the check valve 1 can be manufactured with a face-turned and slide-ground surface machining process instead of an etched, rustproof and flat ground spring steel.
  • the valve seat body 4 has a shoulder 14 to facilitate assembly.
  • radial grooves 15 are directed onto the pressure medium channel, which favor the closing speed of the check valve 1, particularly in the cold.
  • the present construction of the check valve 1 is particularly well suited for receiving an orifice function, since a precise small hole can be etched into the plate structure without any problems.
  • the check valve 1 is designed as a plate check valve which has a passage opening 2 which is aligned coaxially with a first opening 3 of the valve seat body 4, with at least one bypass opening for the first opening 3 in the valve seat body 4 5 is arranged, which is either closed or released by a sealing surface 6 located laterally to the passage opening 2 of the check valve 1.
  • the check valve 1 is arranged on the end face of the valve seat body 4 which is remote from the electromagnetically actuable valve closing member 7 and at least in sections is axially movable between the valve seat body 4 and a step of the valve receiving bore 8 with its sealing surface 6.

Landscapes

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

Abstract

A valve arrangement has a hydraulically controlled nonreturn valve (1) and another, preferably electrically controlled valve closure member (7) which are both positioned in a valve receiving bore (8) of the valve housing (12) that receives the valve arrangement. Both valve closure members (1, 7) co-operate in the valve housing with a valve seat body (4). The nonreturn valve (1) is designed as a disk nonreturn valve with a first flow opening (2) coaxially oriented to a first opening (3) of the valve seat body (4). Besides the first opening (3), at least one bypass opening (5) is provided in the valve seat body (4). The bypass opening (5) is either opened or closed by a sealing surface (6) located to the side of the flow opening (2) of the nonreturn valve (1). A compact nonreturn valve (1) which is particularly simple to produce is thus obtained.

Description

Ventilanordnung, insbesondere Elektromagnetventilanordnung für schlupfgeregelte KraftfahrzeugbremsanlagenValve arrangement, in particular electromagnetic valve arrangement for slip-controlled motor vehicle brake systems
Die Erfindung betrifft eine Ventilanordnung, insbesondere Elektromagnetventilanordnung für schlupfgeregelte Kraftfahrzeugbremsanlagen nach dem Oberbegriff des Anspruchs 1.The invention relates to a valve arrangement, in particular an electromagnetic valve arrangement for slip-controlled motor vehicle brake systems according to the preamble of claim 1.
Aus der deutschen Patentanmeldung DE 42 30 393 AI ist bereits eine Ventilanordnung gleicher Gattung bekanntgeworden, die mittels einer Parallelschaltung eines Kugelrückschlagventils zu einem weiteren elektromagnetisch ansteuerbaren Ventilschließglied eine direkte Druckmittelverbindung zwischen einem am Druckmittelverbraucher angeschlossenen Druckmittelkanal und einem weiteren, an der Druckmittelquelle angeschlossenen Druckmittelkanal herstellt, sobald der hydraulische Öffnungsdruck des Rückschlagventils den Schließdruck überschreitet. Das Kugelrückschlagventil führt zu einem unerwünschten großen Bauaufwand. Nicht nur die Bauhöhe der Ventilanordnung, sondern auch die notwendigen Maßnahmen zur Fixierung und Abdichtung des Kugelrückschlagventils sind von Nachteil.From the German patent application DE 42 30 393 AI, a valve arrangement of the same type has already become known, which establishes a direct pressure medium connection between a pressure medium channel connected to the pressure medium consumer and a further pressure medium channel connected to the pressure medium source by means of a parallel connection of a ball check valve to another pressure medium channel as soon as the hydraulic opening pressure of the check valve exceeds the closing pressure. The ball check valve leads to an undesirable large construction effort. Not only the overall height of the valve arrangement, but also the necessary measures for fixing and sealing the ball check valve are disadvantageous.
Daher ist es die Aufgabe der Erfindung, eine möglichst kompakt bauende Ventilanordnung vorzusehen, die eine einfache Herstellung und Montage bei uneingeschränkter Gewährleistung der Funktionssicherheit ermöglicht.It is therefore the object of the invention to provide a valve arrangement which is as compact as possible and which enables simple manufacture and assembly with an unrestricted guarantee of functional reliability.
Diese Aufgabe wird erfindungsgemäß durch die den Patentanspruch 1 kennzeichnenden Merkmale gelöst.This object is achieved by the features characterizing claim 1.
Durch die in den Unteransprüchen aufgezeigten Maßnahmen sind zweckmäßige Ausbildungen der Erfindung angegeben, die im Zusammenhang mit den weiteren Merkmalen und Vorteilen der Erfin- düng nachfolgend anhand mehrerer Zeichnungen näher dargestellt und erläutert werden.The measures set out in the subclaims provide expedient embodiments of the invention which are associated with the further features and advantages of the invention. fertilizer are illustrated and explained below with reference to several drawings.
Es zeigen:Show it:
Fig. 1 einen Querschnitt der Ventilanordnung,1 shows a cross section of the valve arrangement,
Fig. 2 eine Draufsicht auf das in Fig. 1 dargestellte Rückschlagventil ,2 is a plan view of the check valve shown in FIG. 1,
Fig. 3 eine alternative Ausführungsform zur Anordnung eines Rückschlagventils im Ventilaufnahmekörper.Fig. 3 shows an alternative embodiment for the arrangement of a check valve in the valve receiving body.
Die Fig. 1 zeigt in erheblich vergrößertem Maßstab einen Ausschnitt einer Ventilanordnung, bestehend aus einem rotationssymmetrischen Ventilgehäuse 12, in dessen Ventilaufnahmebohrung 8 ein scheibenförmiger Ventilsitzkörper 4 und ein scheibenförmiges Rückschlagventil 1 befestigt sind. Die Befestigung beider Teile kann vorzugsweise mittels einer Verstemmung des Ventilgehäuses 12 geschehen, wobei in vorliegendem Ausführungsbeispiel durch die Verstemmung des Gehäusematerials der Ventilsitzkörper 4 das Rückschlagventil 1 gegen eine Stufe der Ventilaufnahmebohrung 8 preßt. Die Fig. 1 zeigt die geschlossene Stellung des Rückschlagventils 1, in der die dem Ventilsitzkörper 4 zugewandte Dichtfläche 6 die Bypassöffnun- gen 5 im Ventilsitzkörper 4 vollflächig verschließt. Ausschließlich die zentral gelegene Durchlaßöffnung 2 im Rückschlagventil 1 befindet sich mit der zwischen den Bypassöff- nungen 5 gelegenen Öffnung 3 des Ventilsitzkörpers 4 in Überdeckung, um in der Offenstellung des Ventilschließgliedes 7 eine ungehinderte Druckmittelverbindung zwischen den oberhalb und unterhalb des Ventilsitzkörpers 4 gelegenen Druckräumen herzustellen. Das Ventilschließglied 7 befindet sich auf der vom Rückschlagventil 1 abgewandten Seite am Ventilsitzkörper 4 und verschließt bei elektromagnetischer Erregung die Öffnung 3, die bei einer entsprechenden hydraulischen Druckdifferenz am Rückschlagventil 1 umgangen wird, indem die Dichtfläche 6 von den Bypass-Öffnungen 5 abhebt. Eine Druckmittelverbindung zwischen dem oberhalb und unterhalb des Ventilsitzkörpers 4 gelegenen Druckräumen wird sodann über die zentrale Durchlaßöffnung 2 als auch entlang dem Schlitz 11 im Rückschlagventil 1 ermöglicht.1 shows, on a considerably enlarged scale, a section of a valve arrangement consisting of a rotationally symmetrical valve housing 12, in the valve receiving bore 8 of which a disk-shaped valve seat body 4 and a disk-shaped check valve 1 are fastened. The fastening of both parts can preferably be done by caulking the valve housing 12, wherein in the present exemplary embodiment the caulking of the housing material of the valve seat body 4 presses the check valve 1 against a step of the valve receiving bore 8. 1 shows the closed position of the check valve 1, in which the sealing surface 6 facing the valve seat body 4 closes the bypass openings 5 in the valve seat body 4 over the entire surface. Only the centrally located passage opening 2 in the check valve 1 is in overlap with the opening 3 of the valve seat body 4 located between the bypass openings 5 in order to establish an unimpeded pressure medium connection between the pressure spaces located above and below the valve seat body 4 when the valve closing member 7 is in the open position. The valve closing member 7 is located on the side facing away from the check valve 1 on the valve seat body 4 and closes the opening in the event of electromagnetic excitation 3, which is bypassed at a corresponding hydraulic pressure difference at the check valve 1 by the sealing surface 6 lifts off the bypass openings 5. A pressure medium connection between the pressure chambers located above and below the valve seat body 4 is then made possible via the central passage opening 2 as well as along the slot 11 in the check valve 1.
Die Fig. 2 zeigt unter Bezugnahme auf Fig. 1 ausschließlich das erfindungsgemäße Rückschlagventil 1 in einer Draufsicht, so daß der in Fig. 1 zunächst nur als Bohrung im Rückschlagventil 1 zu erkennende Schlitz 11 nunmehr als kreissegmentför- mig verlaufende Öffnung klar zu erkennen ist. Dieser kreisseg- mentförmig verlaufende Schlitz 11 begrenzt somit den Mittenabschnitt, der die eigentliche scheibenförmige Dichtfläche 6 bildet und als zentrale Öffnung die Durchlaßöffnung 2 aufweist. Am Ende des Schlitzes 11 erstreckt sich ein elastischer, stegförmiger Abschnitt 10, der den Mittenabschnitt mit dem Befestigungsring 9 verbindet. Damit weist das Rückschlagventil 1 einen ersten, als Befestigungsring 9 wirksamen äußeren Abschnitt auf, der über den elastischen zweiten, stegför- migen Abschnitt 10 mit dem die Dichtfläche 6 aufweisenden Mittenabschnitt verbunden ist. Dieser Mittenabschnitt wirkt quasi über den elastischen stegförmigen Abschnitt 10 als Federzunge, um infolge einer auf ihn einwirkenden Hydraulikkraft bedarfsgerecht von der Stirnfläche des Ventilsitzkörpers 4 abzuheben.2 shows, with reference to FIG. 1, only the check valve 1 according to the invention in a plan view, so that the slot 11 which can initially only be seen as a bore in the check valve 1 in FIG. 1 can now be clearly recognized as an opening running in the form of a segment of a circle. This slit 11, which runs in the form of a segment of a circle, thus delimits the central section, which forms the actual disk-shaped sealing surface 6 and has the passage opening 2 as the central opening. At the end of the slot 11, an elastic, web-shaped section 10 extends, which connects the central section to the fastening ring 9. The check valve 1 thus has a first outer section which acts as a fastening ring 9 and which is connected via the elastic second web-shaped section 10 to the central section having the sealing surface 6. This center section acts as it were via the elastic web-shaped section 10 as a spring tongue in order to lift off the end face of the valve seat body 4 as required due to a hydraulic force acting on it.
Ergänzend wird hinsichtlich dieser Funktion auf die in Fig. 1 gezeigte Ausnehmung in der Ventilaufnahmebohrung 8 unterhalb des Rückschlagventils 1 hingewiesen, die in ihrem Durchmesser an den Durchmesser des vom Schlitz 11 begrenzten Mittenabschnittes angepaßt ist. Diesem Durchmesser schließt sich die Stufe der Ventilaufnahmebohrung 8 an, an der der erste, als Befestigungsring 9 wirksame äußere Abschnitt anliegt. Das als Plattenrückschlagventil dargestellte Rückschlagventil 1 ist vorzugsweise aus einem Federstahl oder einem vergleichbaren, wärmebehandelten Blech hergestellt. Es ist jedoch auch denkbar, andere alternative Werkstoffe mit entsprechenden Federeigenschaften zu verwenden.In addition, with regard to this function, reference is made to the recess shown in FIG. 1 in the valve receiving bore 8 below the check valve 1, the diameter of which is adapted to the diameter of the central section delimited by the slot 11. This diameter is followed by the step of the valve receiving bore 8, against which the first outer section, which acts as a fastening ring 9, bears. The check valve 1 shown as a plate check valve is preferably made of spring steel or a comparable, heat-treated sheet. However, it is also conceivable to use other alternative materials with corresponding spring properties.
Die Fig. 3 zeigt eine alternative Anordnung und Ausführungsform des Rückschlagventils 1, das im wesentlichen eine scheibenförmige Dichtfläche 6 aufweist, die mit ihrer gesamten Fläche zwischen dem Ventilsitzkörper 4 und dem Endbereich der Ventilaufnahmebohrung 8 im Ventilgehäuse 12 axial beweglich geführt ist. Um die freie Beweglichkeit des Rückschlagventils 1 in der Ventilaufnahmebohrung 8 sicherzustellen, ist dessen Scheibendurchmesser entsprechend kleiner gewählt als der Durchmesser der Ventilaufnahmebohrung 8. Abhängig von der jeweiligen Einbaulage der Ventilanordnung liegt in der Betriebsruhestellung das Rückschlagventil 1 unter Schwerkraftwirkung entweder am abbildungsgemäßen Ringendabschnitt 13 der Ventilaufnahmebohrung 8 an, oder bei hängender Ventilanordnung am Ventilsitzkörper 4. Da dieses Rückschlagventil 1 gleichfalls wie aus Fig. 1 und 2 hervorgegangen ist, die Durchlaßöffnung 2 und die Öffnung 3 im Ventilsitzkörper 4 übereinstimmen, besteht bei offenem Ventilschließglied 7 eine ungehinderte Druckmittelverbindung zwischen den beiderseits des Ventilsitzkörpers 4 gelegenen Druckräumen. Bei elektromagnetisch erregtem Ventilschließglied 7 ist diese Öffnung 3 verschlossen, so daß allenfalls durch eine am Rückschlagventil 1 wirksame hydraulische Druckdifferenz eine Druckmittelverbindung zwischen den beiderseits des Ventilsitzkörpers 4 gelegenen Druckräume über die Bypassöffnungen 5 und die Durchlaßöffnung 2 im Rückschlagventil 1 ermöglicht wird.3 shows an alternative arrangement and embodiment of the check valve 1, which essentially has a disk-shaped sealing surface 6, which is guided axially movably with its entire surface between the valve seat body 4 and the end region of the valve receiving bore 8 in the valve housing 12. In order to ensure the free movement of the check valve 1 in the valve receiving bore 8, its disc diameter is selected to be correspondingly smaller than the diameter of the valve receiving bore 8. Depending on the respective installation position of the valve arrangement, the check valve 1 is in the operating rest position under the action of gravity either on the ring end section 13 of the valve receiving bore 8 shown in the illustration on, or with a hanging valve arrangement on the valve seat body 4. Since this check valve 1 is also shown in FIGS. 1 and 2, the passage opening 2 and the opening 3 in the valve seat body 4 match, there is an unimpeded pressure medium connection between the two sides of the valve seat body when the valve closing member 7 is open 4 located pressure rooms. When the valve closing member 7 is electromagnetically excited, this opening 3 is closed, so that a pressure medium connection between the pressure chambers located on both sides of the valve seat body 4 via the bypass openings 5 and the passage opening 2 in the check valve 1 is made possible by an effective hydraulic pressure difference at the check valve 1.
Die Fig. 4 zeigt eine gegenüber Fig. 3 nochmals verbesserte Ausführungsform der Erfindung. Das plattenförmige Rückschlagventil 1 hat die aus Fig. 3 bekannte Bauform. Der Ventilsitzkörper 4 ist gleichfalls mit der in Fig. 3 gezeigten Konstruktion identisch. Zu beachten ist, daß das Rückschlagventil 1 anstelle eines geätzten, rostfreien und plangeschliffenen Federstahls mit einem plangedrehten und gleitgeschliffenen Oberflächen-Bearbeitungsvorgangs hergestellt werden kann. Der Ventilsitzkörper 4 hat zur Montageerleichterung einen Absatz 14. Im Boden des Ventilgehäuses 12 sind auf den Druckmittelkanal radiale Nuten 15 gerichtet, die insbesondere bei Kälte die Schließgeschwindigkeit des Rückschlagventils 1 begünstigen. Die vorliegende Konstruktion des Rückschlagventils 1 eignet sich besonders gut zur Aufnahme einer Blendenfunktion, indem in die Plattenstruktur völlig unproblematisch ein präzises kleines Loch geätzt werden kann.FIG. 4 shows an embodiment of the invention that has been further improved compared to FIG. 3. The plate-shaped check valve 1 has the design known from FIG. 3. The valve seat body 4 is also identical to the construction shown in FIG. 3. It should be noted that the check valve 1 can be manufactured with a face-turned and slide-ground surface machining process instead of an etched, rustproof and flat ground spring steel. The valve seat body 4 has a shoulder 14 to facilitate assembly. In the bottom of the valve housing 12, radial grooves 15 are directed onto the pressure medium channel, which favor the closing speed of the check valve 1, particularly in the cold. The present construction of the check valve 1 is particularly well suited for receiving an orifice function, since a precise small hole can be etched into the plate structure without any problems.
Soweit nicht auf alle in Fig. 4 gezeigten Einzelheiten eingegangen wurde, sind diese den vorangegangenen Ausführungsbei- spielen zu entnehmen.Unless all the details shown in FIG. 4 have been dealt with, these can be found in the preceding exemplary embodiments.
Zusammenfassend ist somit festzuhalten, daß die Erfindung darauf basiert, daß das Rückschlagventil 1 als Plattenrückschlagventil ausgebildet ist, das eine Durchlaßöffnung 2 aufweist, die koaxial zu einer ersten Öffnung 3 des Ventilsitzkörpers 4 ausgerichtet ist, wobei zur ersten Öffnung 3 im Ventilsitzkörper 4 wenigstens eine Bypassöffnung 5 angeordnet ist, die von einer seitlich zur Durchlaßöffnung 2 des Rückschlagventils 1 gelegenen Dichtfläche 6 entweder verschlossen oder freigegeben wird. Funktionsgemäß ist das Rückschlagventil 1 auf der vom elektromagnetisch betätigbaren Ventilschließglied 7 entfernt gelegenen Stirnfläche des Ventilsitzkörpers 4 angeordnet und zumindest abschnittsweise zwischen dem Ventilsitzkörper 4 und einer Stufe der Ventilaufnahmebohrung 8 mit seiner Dichtfläche 6 axial beweglich. BezugszeichenlisteIn summary, it should be noted that the invention is based on the fact that the check valve 1 is designed as a plate check valve which has a passage opening 2 which is aligned coaxially with a first opening 3 of the valve seat body 4, with at least one bypass opening for the first opening 3 in the valve seat body 4 5 is arranged, which is either closed or released by a sealing surface 6 located laterally to the passage opening 2 of the check valve 1. In terms of function, the check valve 1 is arranged on the end face of the valve seat body 4 which is remote from the electromagnetically actuable valve closing member 7 and at least in sections is axially movable between the valve seat body 4 and a step of the valve receiving bore 8 with its sealing surface 6. Reference list
1 Rückschlagventil1 check valve
2 Durchlaßöffnung2 passage opening
3 Öffnung3 opening
4 Ventilsitzkörper4 valve seat bodies
5 Bypassöffnung5 bypass opening
6 Dichtfläche6 sealing surface
7 Ventilschließglied7 valve closing member
8 Ventilaufnahmekörper8 valve body
9 Befestigungsring9 mounting ring
10 Abschnitt10 section
11 Schlitz11 slot
12 Ventilgehäuse12 valve housing
13 Ringendabschnitt13 ring end portion
14 Absatz14 paragraph
15 Nut 15 groove

Claims

Patentansprüche claims
1. Ventilanordnung, insbesondere Elektromagnetventilanordnung für schlupfgeregelte Kraftfahrzeugbremsanlagen, mit einem hydraulisch ansteuerbaren Rückschlagventil und mit einem weiteren, vorzugsweise elektrisch ansteuerbaren Ventilschließglied, die beide in einer Ventilaufnahmebohrung des die Ventilanordnung aufnehmenden Ventilgehäuses positioniert sind, wobei beide Ventilschließglieder im Ventilgehäuse mit einem Ventilsitzkörper zusammenwirken, dadurch gekennzeichnet, daß das Rückschlagventil (1) als Plattenrückschlagventil ausgebildet ist, das eine Durchlaßöffnung (2) aufweist, die koaxial zu einer ersten Öffnung (3) des Ventilsitzkörpers (4) ausgerichtet ist, daß zur ersten Öffnung (3) im Ventilsitzkörper (4) wenigstens eine Bypassöff- nung (5) vorgesehen ist, die von einer seitlich zur Durchlaßöffnung (2) des Rückschlagventils (1) gelegenen Dichtfläche (6) entweder verschlossen oder freigegeben ist.1. Valve arrangement, in particular electromagnetic valve arrangement for slip-controlled motor vehicle brake systems, with a hydraulically controllable check valve and with a further, preferably electrically controllable valve closing member, both of which are positioned in a valve receiving bore of the valve housing receiving the valve arrangement, both valve closing members cooperating with a valve seat body in the valve housing, characterized in that that the check valve (1) is designed as a plate check valve which has a passage opening (2) which is aligned coaxially with a first opening (3) of the valve seat body (4), that at least to the first opening (3) in the valve seat body (4) a bypass opening (5) is provided which is either closed or released by a sealing surface (6) located to the side of the passage opening (2) of the check valve (1).
2. Ventilanordnung nach Anspruch 1, dadurch gekennzeichnet, daß das Rückschlagventil (1) auf der vom weiteren Ventilschließglied (7) entfernt gelegenen Stirnfläche des Ventilsitzkörpers (4) angeordnet ist.2. Valve arrangement according to claim 1, characterized in that the check valve (1) is arranged on the end face of the valve seat body (4) remote from the further valve closing member (7).
3. Ventilanordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Rückschlagventil (1) mit seiner Dichtfläche (6) zumindest abschnittsweise axial beweglich zwischen dem Ventilsitzkörper (4) und einer Stufe der Ventilaufnahmebohrung (8) angeordnet ist.3. Valve arrangement according to claim 1 or 2, characterized in that the check valve (1) with its sealing surface (6) at least in sections axially movable between the valve seat body (4) and a step of the valve receiving bore (8) is arranged.
4. Ventilanordnung nach einem der vorhergehenden Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Rückschlagventil (1) einen ersten, als Befestigungsring (9) wirksamen Abschnitt aufweist, der über einen elastischen und stegförmigen zweiten Abschnitt (10) mit einem die Dichtfläche (6) aufweisen- den Mittenabschnitt verbunden ist.4. Valve arrangement according to one of the preceding claims 1 to 3, characterized in that the check valve (1) has a first, as a fastening ring (9) effective section which has an elastic and web-shaped second section (10) with a sealing surface (6 ) exhibit- the middle section is connected.
5. Ventilanordnung nach Anspruch 4, dadurch gekennzeichnet, daß der Mittenabschnitt von einem kreissegmentförmig verlaufenden Schlitz (11) vom Befestigungsring (9) getrennt ist .5. Valve arrangement according to claim 4, characterized in that the central section of a circular segment-shaped slot (11) is separated from the fastening ring (9).
6. Ventilanordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zwischen den Enden des Schlitzes (11) der elastische und stegförmige zweite Abschnitt (10) den Mittenabschnitt mit dem Befestigungsring (9) verbindet .6. Valve arrangement according to one of the preceding claims, characterized in that between the ends of the slot (11) the elastic and web-shaped second section (10) connects the central section with the fastening ring (9).
7. Ventilanordnung nach Anspruch 1, dadurch gekennzeichnet, daß ein die Dichtfläche (6) aufweisender Mittenabschnitt eine zentral gelegene Durchlaßöffnung (2) aufweist. 7. Valve arrangement according to claim 1, characterized in that a sealing surface (6) having a central section has a centrally located passage opening (2).
EP97948767A 1996-10-21 1997-10-20 Valve arrangement, in particular electromagnetic valve arrangement for slip-controlled motor vehicle brake systems Withdrawn EP0929429A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1996143290 DE19643290A1 (en) 1996-10-21 1996-10-21 Valve arrangement, in particular electromagnetic valve arrangement for slip-controlled motor vehicle brake systems
DE19643290 1996-10-21
PCT/EP1997/005773 WO1998017515A1 (en) 1996-10-21 1997-10-20 Valve arrangement, in particular electromagnetic valve arrangement for slip-controlled motor vehicle brake systems

Publications (1)

Publication Number Publication Date
EP0929429A1 true EP0929429A1 (en) 1999-07-21

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EP97948767A Withdrawn EP0929429A1 (en) 1996-10-21 1997-10-20 Valve arrangement, in particular electromagnetic valve arrangement for slip-controlled motor vehicle brake systems

Country Status (5)

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US (1) US6158463A (en)
EP (1) EP0929429A1 (en)
JP (1) JP2001502631A (en)
DE (1) DE19643290A1 (en)
WO (1) WO1998017515A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102016201463A1 (en) * 2016-02-01 2017-08-03 Zf Friedrichshafen Ag Valve disc for a check valve of a vibration damper, as well as the check valve

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GB8709615D0 (en) * 1987-04-23 1987-05-28 Dewandre Co Ltd C Solenoid operated valve
DE3816748A1 (en) * 1988-05-17 1989-11-30 Teves Gmbh Alfred HYDRAULIC UNIT
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Title
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Also Published As

Publication number Publication date
JP2001502631A (en) 2001-02-27
WO1998017515A1 (en) 1998-04-30
US6158463A (en) 2000-12-12
DE19643290A1 (en) 1998-04-23

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