WO2005098205A1 - Cartridge valve, especially for a camshaft regulator - Google Patents

Cartridge valve, especially for a camshaft regulator Download PDF

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Publication number
WO2005098205A1
WO2005098205A1 PCT/EP2005/002349 EP2005002349W WO2005098205A1 WO 2005098205 A1 WO2005098205 A1 WO 2005098205A1 EP 2005002349 W EP2005002349 W EP 2005002349W WO 2005098205 A1 WO2005098205 A1 WO 2005098205A1
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WO
WIPO (PCT)
Prior art keywords
cartridge valve
valve according
connection
cartridge
recess
Prior art date
Application number
PCT/EP2005/002349
Other languages
German (de)
French (fr)
Inventor
Marius Cornea
Andreas Ehrenfels
Original Assignee
Hydraulik-Ring Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hydraulik-Ring Gmbh filed Critical Hydraulik-Ring Gmbh
Priority to DE502005000069T priority Critical patent/DE502005000069D1/en
Priority to EP05715769A priority patent/EP1623099B1/en
Publication of WO2005098205A1 publication Critical patent/WO2005098205A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/46Component parts, details, or accessories, not provided for in preceding subgroups

Definitions

  • the invention relates to a cartridge valve, in particular for camshaft adjusters, according to the preamble of claim 1.
  • Cartridge valves are used, for example, in camshaft adjusters to control the pressure medium supply to the camshaft adjuster.
  • the cartridge valves have as drive part a magnetic part to which a valve part is connected.
  • the valve member is installed in a receiving block, which may be the cylinder head, the engine block or a special valve block.
  • the valve member has a bush which is provided on the outside with circumferentially extending depressions, which are formed either as annular grooves or Operaringnuten. In these recesses opens at least one passage opening.
  • the valve member must be installed in the receiving block so that provided in the receiving block supply bores for the pressure medium reach the corresponding wells.
  • Valve parts of cartridge valves are also known, which instead of the recesses have through holes which must be exactly aligned with the supply holes when installing the cartridge valve.
  • the distance between the depressions or these position-oriented bores largely depends on the construction of the piston located in the bush or the volume flow of the pressure medium to be realized.
  • the invention is based on the object, the generic cartridge valve in such a way that it is used for different installation situations. can be set, in which the distance between the supply holes of the receiving block for the cartridge valve is different.
  • the recess has a length and / or width dimension which is greater than the cross section of the terminal.
  • the recess forms an oil distribution channel that can be created by machining or casting the socket. Through a passage opening in this recess, a line connection can be made with inner ring channels on the inside of the socket.
  • the bushing has a plurality of depressions corresponding to the number of connections of the cartridge valve.
  • FIG. 1 is a side view of an inventive cartridge valve, 2 partially in axial section along the line AA in Fig. 4 and partly in side view of the inserted into a receiving block cartridge valve of FIG. 1,
  • FIG. 7 is a side view of a second embodiment of a cartridge valve according to the invention.
  • FIG. 12 shows a section along the line E-E in FIG. 8.
  • the cartridge valve is provided for phaser and has a solenoid part 1 and a valve part 2.
  • the cartridge valve is inserted with the valve part 2 into a receiving block 12, which may be a cylinder head, an engine block, a valve receiving block or the like.
  • the magnet part 1 has a cylindrical housing 3 which has a plug connection 4 at its end remote from the valve part 2.
  • a tab 5 is fixed, which projects transversely from the housing and with which the cartridge valve is mounted on the receiving block.
  • the magnet part 1 contains in a known manner at least one coil, in whose energization an armature is displaced axially, which is connected to a plunger 6. With it, a piston 7 can be moved in the valve member 2 against the force of at least one compression spring 8.
  • the valve member 2 has a sleeve 9 which engages with one end in a central recess 10 in the valve part side end face 1 1 of the housing 3 and is secured there in a suitable manner.
  • the bush 9 is sealed relative to the housing 3 by at least one seal which is provided in the bottom of the recess 10.
  • the bush 9 is provided near the magnet part 1 with an annular groove 13 which receives a ring seal 14, with which the valve member 2 is sealed in the receiving space of the receiving block.
  • the piston 7 is axially displaceable in the sleeve 9 and has a closed bottom 15 against which the plunger 6 of the magnetic part 1 is applied.
  • the opposite end of the hollow piston 7 is open.
  • the compression spring 8 which is supported at one end to a radial annular shoulder 16 in the inner wall of the piston 7.
  • the other end of the compression spring 8 bears against a ring 17, which is advantageously screwed into the free end of the bushing 9.
  • the bias of the compression spring 8 can be optimally adjusted continuously.
  • the sleeve 9 has on the inside two annular grooves 18 and 19, which have axial distance from each other.
  • the piston 7 has near the bottom 15 on the circumference evenly distributed through holes 20. Adjacent to the free end of the hollow piston 7 is provided with further, uniformly distributed over the circumference arranged through holes 21.
  • the distance between the passage openings 20 and 21 is greater than the distance between the annular grooves 18 and 19th
  • the sleeve 9 has on its outer side at the level of the inner annular grooves 18, 19 each have a distribution channel 22, 23 (Fig. 1), is reliably achieved by the hydraulic medium through holes in the receiving block to the annular grooves 18, 19 and the Through openings 20, 21 can get.
  • the two distribution channels 22, 23 are the same design, but arranged in mirror image to each other. As shown in FIG. 1, the distribution channels 22, 23 each have a U-shape.
  • the two legs 24, 25 of the magnetteil documenten distribution channel 22 extend axially in the direction of the magnetic part 3.
  • the legs 26, 27 of the distribution channel 23 are also axially and at the same height with the legs 24, 25 of the distribution channel 22.
  • the two legs 24th , 25 and 26, 27 are connected to each other by a perpendicular to them and in the circumferential direction of the housing extending transverse part 28, 29 with each other.
  • the two cross members 28, 29 are at a distance from each other.
  • Between the transverse parts 28, 29 of the distribution channels 22, 23 remains a web 34 which extends in the circumferential direction of the bushing 9 and has constant width.
  • the distribution channels 22, 23 are provided so that their legs 24, 25 and 26, 27 each extend to the level of the annular grooves 18, 19 in the inner wall of the bush 9. As is apparent from Figs. 1 and 3, the legs 24, 25 extend; 26, 27 of the distribution channels 22, 23 approximately over half its length in the region of the annular grooves 18, 19.
  • the transverse parts 28, 29 are outside the range of the annular grooves 18, 19th
  • passage openings 30, 31 are provided which connect the distribution channels 22, 23 with the inner ring grooves 18, 19 (Fig. 1 and 3).
  • the passage openings 30, 31 are advantageously formed as diaphragms.
  • the legs 24, 25; 26, 27 are at an angle to the axial direction or, for example, also have a V-shaped design.
  • the distribution channels 22, 23 are designed in any case so that also different distances between Zutechnischsboh- ments in the receiving block with the corresponding inner ring grooves 18, 19 and the through holes 20, 21 can be brought into connection.
  • the free ends of the legs 24, 25, 26, 27 of the two distribution channels 22, 23 have the distance a from each other (Fig. 1).
  • the legs 24, 25, 26, 27 have a length b.
  • the receiving block 12 has two working ports A, B and a pressure port P, which are each formed as radial bores (Fig. 4 to 6).
  • the axis of the working connection A has the axial distance d from the longitudinal axis of the web 34 (FIG. 2).
  • the working port B has the axial distance e from the longitudinal axis of the web 34.
  • the two distances d, e are advantageously the same.
  • the distances d, e are greater than the length b of the legs 24, 25, 26, 27 of the distribution channels 22, 23, but smaller than the distance a of the free ends of the legs 24, 25, 26, 27 from each other.
  • the axes of the two working ports A, B have the axial distance c from each other, which corresponds to the sum of the distances d and e, but is smaller than the distance a.
  • optimum position of the socket 9 in the receiving block 12 cover the terminals A, B, the cross members 28, 29 of the distribution channels 22, 23 about halfway.
  • the radial working ports A, B is in each case assigned to one of the two distribution channels 22, 23.
  • the valve member 2 is provided with the radial pressure port P, via which the hydraulic medium is supplied under pressure to the cartridge valve.
  • the magnetic member 1 is not energized, so that the plunger 6 is withdrawn and the piston. 7 under the force of the compression spring 8 assumes its one end position.
  • the pressure port P which is formed by at least one radial bore 33 in the bush 9 (FIG. 3), is in this position of the piston 7 with an annular groove 32 in the outer circumferential surface of the piston 7 in connection.
  • the pressure port P can be connected to the inner ring channel 18 or 19 of the bushing 9, which has a line connection with the distribution channel 22 and 23, depending on the position of the piston 7.
  • the hydraulic medium can thus via the pressure port P, the annular groove 32, the inner ring channel 18 or 19 and the distribution channel 22 or 23 to the working port A or B flow.
  • the other working port is separated from the pressure port P by the piston 7.
  • the magnetic part 1 is energized, so that the plunger 6 is moved in Figs. 2 and 3 to the right.
  • the working connection A or B not connected to the pressure connection P is connected to an axial tank connection T, so that the hydraulic medium displaced via the working connection A or B can flow through the piston 7 to the tank T.
  • the hydraulic medium flows through the open piston end and the ring 17th
  • angles x, y, z between the axes of the connections A, B, P and the distribution channels 22, 23 indicated in FIGS. 4 to 6 can be variable.
  • the two working ports A, B are connected to the corresponding pressure chambers of the camshaft adjuster. It has a stator with radially inwardly projecting vanes, which are provided at a distance from one another along the circumference of the stator and bear sealingly against the lateral surface of a cylindrical main body of a rotor. He sits non-rotatably on the camshaft and has from its base radially outwardly projecting wings. They engage in the area between each two adjacent stator blades and are sealingly against the inner wall of the stator. Between each rotor blade and the adjacent stator blades a pressure chamber is formed in each case, which is connected to the working ports A and B of the cartridge valve.
  • the stator is non-rotatable with a drive wheel connected, which is drivingly connected via a chain or a belt with a crankshaft of the internal combustion engine. Sn of an end position of the rotor are its wings on a side wall of the stator at. From this end position of the rotor can be rotated relative to the maximum maximum so that the rotor blades abut the opposite stator blades. This relative rotation of the rotor with respect to the stator takes place in that, depending on the desired direction of rotation of the working port A or B of the cartridge valve is connected to the respective pressure chamber of the camshaft adjuster. In the relative rotation of the rotor located in the non-pressurized pressure chamber hydraulic medium is displaced in the manner described to the tank T via the cartridge valve.
  • the pressure port P may also be provided axially and the tank port T radially.
  • the radial pressure or tank connection P, T is advantageously also associated with a distribution channel 22.
  • the embodiment according to FIGS. 7 to 12 differs from the previous embodiment only in that the bush 9 has no inner ring channels or annular grooves.
  • the distribution channels 22, 23 are in line connection with the working ports A, B in the receiving block 12.
  • the bushing 9 receives the piston 7, which has the annular groove 35 in its outer circumferential surface.
  • the pressure port P can be conductively connected depending on the position of the piston 7 to the working port A or B.
  • the distances a to e are equal to each other in relation to the previous embodiment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Magnetically Actuated Valves (AREA)
  • Lift Valve (AREA)

Abstract

The invention relates to a cartridge valve comprising a drive part and a valve part (2) provided with a sleeve (9) in which a piston (7) can be displaced and which comprises a recess (22, 23) into which a connection leads. The aim of the invention is to embody one such cartridge valve in such a way that it can be used for different fitting situations, wherein the distance between the supply boreholes of the receiving block for the cartridge valve differs. To this end, the recess (22, 23) has a length and/or width extension that is larger than the cross-section of the connection. The cartridge valve is suitable for using in camshaft regulators for controlling the supply of a pressure medium.

Description

Gartri sfeventi.- finsbeson ere für Nockenwellenverstetler Gartri sfeventi.- finsbesonere for cam followers
Die Erfindung betrifft ein Cartridgeventil, insbesondere für Nockenwellen- versteller, nach dem Oberbegriff des Anspruches 1.The invention relates to a cartridge valve, in particular for camshaft adjusters, according to the preamble of claim 1.
Cartridgeventile werden beispielsweise bei Nockenwellenverstellern verwendet, um die Druckmittelzufuhr zum Nockenwellenversteller zu steuern. Die Cartridgeventile haben als Antriebsteil einen Magnetteil, an den ein Ventilteil angeschlossen ist. Der Ventilteil wird in einen Aufnahmeblock eingebaut, der der Zylinderkopf, der Motorblock oder ein spezieller Ventilaufnahmeblock sein kann. Der Ventilteil hat eine Buchse, die außenseitig mit in Umfangs- richtung sich erstreckenden Vertiefungen versehen ist, die entweder als Ringnuten oder Teilringnuten ausgebildet sind. In diese Vertiefungen mündet mindestens eine Durchgangsöffnung. Der Ventilteil muß im Aufnahmeblock so eingebaut werden, daß im Aufnahmeblock vorgesehene Zuleitungsbohrungen für das Druckmedium in die entsprechenden Vertiefungen gelangen. Es sind auch Ventilteile von Cartridgeventilen bekannt, die anstelle der Vertiefungen Durchgangsbohrungen haben, die beim Einbau des Cartridgeventi- IΘS exakt mit den Zuleitungsbohrungen fluchten müssen. Der Abstand zwischen den Vertiefungen bzw. diesen lageorientierten Bohrungen hängt weitgehend von der Konstruktion des in der Buchse befindlichen Kolbens bzw. dem zu realisierenden Volumenstrom des Druckmediums ab. Es gibt Einbausituationen, bei denen der gewünschte Abstand zwischen den Zuleitungsbohrungen für die verschiedenen Anschlüsse des Ventilteiles im Aufnahmeblock zu groß oder zu klein ist, so daß das entsprechende Cartridgeventil nicht eingebaut werden kann. Es ist daher notwendig, je nach Einbausituation unterschiedliche Buchsen für die Ventilteile einzusetzen.Cartridge valves are used, for example, in camshaft adjusters to control the pressure medium supply to the camshaft adjuster. The cartridge valves have as drive part a magnetic part to which a valve part is connected. The valve member is installed in a receiving block, which may be the cylinder head, the engine block or a special valve block. The valve member has a bush which is provided on the outside with circumferentially extending depressions, which are formed either as annular grooves or Teilringnuten. In these recesses opens at least one passage opening. The valve member must be installed in the receiving block so that provided in the receiving block supply bores for the pressure medium reach the corresponding wells. Valve parts of cartridge valves are also known, which instead of the recesses have through holes which must be exactly aligned with the supply holes when installing the cartridge valve. The distance between the depressions or these position-oriented bores largely depends on the construction of the piston located in the bush or the volume flow of the pressure medium to be realized. There are installation situations in which the desired distance between the supply holes for the various ports of the valve member in the receiving block is too large or too small, so that the corresponding cartridge valve can not be installed. It is therefore necessary to use different sockets for the valve parts depending on the installation situation.
Der Erfindung liegt die Aufgabe zugrunde, das gattungsgemäße Cartridgeventil so auszubilden, daß es für unterschiedliche Einbausituationen einge- setzt werden kann, bei denen der Abstand zwischen den Zuleitungsbohrungen des Aufnahmeblockes für das Cartridgeventil unterschiedlich ist.The invention is based on the object, the generic cartridge valve in such a way that it is used for different installation situations. can be set, in which the distance between the supply holes of the receiving block for the cartridge valve is different.
Diese Aufgabe wird beim gattungsgemäßen Cartridgeventil erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst.This object is achieved in the generic cartridge valve according to the invention with the characterizing features of claim 1.
Beim erfindungsgemäßen Cartridgeventil hat die Vertiefung eine Längen- und/oder Breitenausdehnung, die größer ist als der Querschnitt des Anschlusses. Dadurch kann der Abstand zwischen den Anschlüssen im Aufnahmeblock variieren, ohne daß der Einbau des Cartridgeventils erschwert wird. Aufgrund der erfindungsgemäßen Ausbildung muß in einem solchen Fall keine genaue Positionierung des Cartridgeventils relativ zum Anschluß eingehalten werden, um eine Strömungsverbindung zwischen dem Anschluß und der Vertiefung zu erhalten.In the cartridge valve according to the invention, the recess has a length and / or width dimension which is greater than the cross section of the terminal. As a result, the distance between the terminals in the receiving block can vary without making the installation of the cartridge valve difficult. Due to the design of the invention, in such a case, no accurate positioning of the cartridge valve relative to the port must be maintained to provide fluid communication between the port and the well.
Die Vertiefung bildet einen Ölverteilkanal, der durch mechanische Bearbeitung oder durch Gießen der Buchse erzeugt werden kann. Durch eine Durchgangsöffnung in dieser Vertiefung kann eine Leitungsverbindung mit Innenringkanälen an der Innenseite der Buchse hergestellt werden.The recess forms an oil distribution channel that can be created by machining or casting the socket. Through a passage opening in this recess, a line connection can be made with inner ring channels on the inside of the socket.
Vorteilhaft hat die Buchse mehrere Vertiefungen entsprechend der Zahl der Anschlüsse des Cartridgeventiles. In diesem Falle ist es zweckmäßig, zwischen den verschiedenen Vertiefungen Formdichtringe vorzusehen, um die Leckage des Cartridgeventiles zu minimieren.Advantageously, the bushing has a plurality of depressions corresponding to the number of connections of the cartridge valve. In this case it is expedient to provide molded sealing rings between the various recesses in order to minimize the leakage of the cartridge valve.
Weitere Merkmale der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und der Zeichnung.Further features of the invention will become apparent from the other claims, the description and the drawings.
Die Erfindung wird anhand zweier in den Zeichnungen dargestellter Ausführungsbeispiele näher erläutert. Es zeigenThe invention will be explained in more detail with reference to two embodiments shown in the drawings. Show it
Fig. 1 in Seitenansicht ein erfindungsgemäßes Cartridgeventil, Fig. 2 teilweise im Axialschnitt längs der Linie A-A in Fig. 4 und teilweise in Seitenansicht das in einen Aufnahmeblock eingesetzte Cartridgeventil gemäß Fig. 1 ,1 is a side view of an inventive cartridge valve, 2 partially in axial section along the line AA in Fig. 4 and partly in side view of the inserted into a receiving block cartridge valve of FIG. 1,
Fig. 3 einen Schnitt längs der Linie B-B in Fig. 5,3 is a section along the line B-B in Fig. 5,
Fig. 4 einen Schnitt längs der Linie C-C in Fig. 2,4 shows a section along the line C-C in Fig. 2,
Fig. 5 einen Schnitt längs der Linie D-D in Fig. 2,5 shows a section along the line D-D in Fig. 2,
Fig. 6 einen Schnitt längs der Linie E-E in Fig. 2,6 is a section along the line E-E in Fig. 2,
Fig. 7 in Seitenansicht eine zweite Ausführungsform eines erfindungsgemäßen Cartridgeventils,7 is a side view of a second embodiment of a cartridge valve according to the invention,
Fig. 8 teilweise im Axialschnitt längs der Linie A-A in Fig. 10 und teilweise in Seitenansicht das in einen Aufnahmeblock eingesetzte Cartridgeventil gemäß Fig. 7,8 partially in axial section along the line A-A in FIG. 10 and partly in side view, the cartridge valve used in a receiving block according to FIG. 7,
Fig. 9 einen Schnitt längs der Linie B-B in Fig. 11 ,9 is a section along the line B-B in Fig. 11,
Fig. 10 einen Schnitt längs der Linie C-C in Fig. 8,10 is a section along the line C-C in Fig. 8,
Fig. 1 einen Schnitt längs der Linie D-D in Fig. 8,1 is a section along the line D-D in Fig. 8,
Fig. 12 einen Schnitt längs der Linie E-E in Fig. 8.FIG. 12 shows a section along the line E-E in FIG. 8. FIG.
Das Cartridgeventil ist für Nockenwellenversteller vorgesehen und hat einen Magnetteil 1 und einen Ventilteil 2. Das Cartridgeventil wird mit dem Ventilteil 2 in einen Aufnahmeblock 12 eingesetzt, der ein Zylinderkopf, ein Motorblock, ein Ventilaufnahmeblock oder dergleichen sein kann. Der Magnetteil 1 hat ein zylindrisches Gehäuse 3, das an seinem vom Ventilteil 2 abgewandten Ende einen Steckeranschluß 4 aufweist. Auf dem Gehäuse 3 ist eine Lasche 5 befestigt, die quer vom Gehäuse absteht und mit der das Cartridge- ventil auf dem Aufnahmeblock befestigt wird. Der Magnetteil 1 enthält in bekannter Weise wenigstens eine Spule, bei deren Bestromung ein Anker axial verschoben wird, der mit einem Stößel 6 verbunden ist. Mit ihm kann ein Kolben 7 im Ventilteil 2 gegen die Kraft wenigstens einer Druckfeder 8 verschoben werden.The cartridge valve is provided for phaser and has a solenoid part 1 and a valve part 2. The cartridge valve is inserted with the valve part 2 into a receiving block 12, which may be a cylinder head, an engine block, a valve receiving block or the like. The magnet part 1 has a cylindrical housing 3 which has a plug connection 4 at its end remote from the valve part 2. On the housing 3, a tab 5 is fixed, which projects transversely from the housing and with which the cartridge valve is mounted on the receiving block. The magnet part 1 contains in a known manner at least one coil, in whose energization an armature is displaced axially, which is connected to a plunger 6. With it, a piston 7 can be moved in the valve member 2 against the force of at least one compression spring 8.
Der Ventilteil 2 hat eine Buchse 9, die mit einem Ende in eine zentrale Vertiefung 10 in der ventilteilseitigen Stirnseite 1 1 des Gehäuses 3 eingreift und dort in geeigneter Weise befestigt ist. Die Buchse 9 ist gegenüber dem Gehäuse 3 durch wenigstens eine Dichtung abgedichtet, die im Boden der Vertiefung 10 vorgesehen ist. Die Buchse 9 ist nahe dem Magnetteil 1 mit einer Ringnut 13 versehen, die eine Ringdichtung 14 aufnimmt, mit der der Ventilteil 2 im Aufnahmeraum des Aufnahmeblockes abgedichtet ist.The valve member 2 has a sleeve 9 which engages with one end in a central recess 10 in the valve part side end face 1 1 of the housing 3 and is secured there in a suitable manner. The bush 9 is sealed relative to the housing 3 by at least one seal which is provided in the bottom of the recess 10. The bush 9 is provided near the magnet part 1 with an annular groove 13 which receives a ring seal 14, with which the valve member 2 is sealed in the receiving space of the receiving block.
Der Kolben 7 ist in der Buchse 9 axial verschiebbar und hat einen geschlossenen Boden 15, an dem der Stößel 6 des Magnetteiles 1 anliegt. Das gegenüberliegende Ende des Hohlkolbens 7 ist offen. In das offene Ende des Kolbens 7 ragt die Druckfeder 8, die sich mit einem Ende an einer radialen Ringschulter 16 in der Innenwand des Kolbens 7 abstützt. Das andere Ende der Druckfeder 8 liegt an einem Ring 17 an, der vorteilhaft in das freie Ende der Buchse 9 geschraubt ist. Dadurch läßt sich die Vorspannung der Druckfeder 8 optimal stufenlos einstellen.The piston 7 is axially displaceable in the sleeve 9 and has a closed bottom 15 against which the plunger 6 of the magnetic part 1 is applied. The opposite end of the hollow piston 7 is open. In the open end of the piston 7 protrudes the compression spring 8, which is supported at one end to a radial annular shoulder 16 in the inner wall of the piston 7. The other end of the compression spring 8 bears against a ring 17, which is advantageously screwed into the free end of the bushing 9. As a result, the bias of the compression spring 8 can be optimally adjusted continuously.
Die Buchse 9 weist innenseitig zwei Ringnuten 18 und 19 auf, die axialen Abstand voneinander haben.The sleeve 9 has on the inside two annular grooves 18 and 19, which have axial distance from each other.
Der Kolben 7 weist nahe dem Boden 15 über den Umfang gleichmäßig verteilt angeordnete Durchgangsöffnungen 20 auf. Benachbart zum freien Ende ist der Hohlkolben 7 mit weiteren, über den Umfang gleichmäßig verteilt angeordneten Durchgangsöffnungen 21 versehen. Der Abstand zwischen den Durchgangsöffnungen 20 und 21 ist größer als der Abstand zwischen den Ringnuten 18 und 19. Die Buchse 9 weist an ihrer Außenseite in Höhe der innen liegenden Ringnuten 18, 19 jeweils einen Verteilerkanal 22, 23 (Fig. 1 ) auf, über den zuverlässig erreicht wird, daß das Hydraulikmedium über Bohrungen im Aufnahmeblock zu den Ringnuten 18, 19 und den Durchgangsöffnungen 20, 21 gelangen kann. Die beiden Verteilerkanäle 22, 23 sind gleich ausgebildet, jedoch spiegelbildlich zueinander angeordnet. Wie Fig. 1 zeigt, haben die Verteilerkanäle 22, 23 jeweils U-Form. Die beiden Schenkel 24, 25 des magnet- teilseitigen Verteilerkanals 22 verlaufen axial in Richtung auf den Magnetteil 3. Die Schenkel 26, 27 des Verteilerkanals 23 liegen ebenfalls axial und auf gleicher Höhe mit den Schenkeln 24, 25 des Verteilerkanals 22. Die beiden Schenkel 24, 25 und 26, 27 sind jeweils durch einen senkrecht zu ihnen und in Umfangsrichtung des Gehäuses verlaufenden Querteil 28, 29 miteinander verbunden. Die beiden Querteile 28, 29 liegen mit Abstand einander gegenüber. Zwischen den Querteilen 28, 29 der Verteilerkanäle 22, 23 verbleibt ein Steg 34, der sich in Umfangsrichtung der Buchse 9 erstreckt und konstante Breite hat.The piston 7 has near the bottom 15 on the circumference evenly distributed through holes 20. Adjacent to the free end of the hollow piston 7 is provided with further, uniformly distributed over the circumference arranged through holes 21. The distance between the passage openings 20 and 21 is greater than the distance between the annular grooves 18 and 19th The sleeve 9 has on its outer side at the level of the inner annular grooves 18, 19 each have a distribution channel 22, 23 (Fig. 1), is reliably achieved by the hydraulic medium through holes in the receiving block to the annular grooves 18, 19 and the Through openings 20, 21 can get. The two distribution channels 22, 23 are the same design, but arranged in mirror image to each other. As shown in FIG. 1, the distribution channels 22, 23 each have a U-shape. The two legs 24, 25 of the magnetteilseitigen distribution channel 22 extend axially in the direction of the magnetic part 3. The legs 26, 27 of the distribution channel 23 are also axially and at the same height with the legs 24, 25 of the distribution channel 22. The two legs 24th , 25 and 26, 27 are connected to each other by a perpendicular to them and in the circumferential direction of the housing extending transverse part 28, 29 with each other. The two cross members 28, 29 are at a distance from each other. Between the transverse parts 28, 29 of the distribution channels 22, 23 remains a web 34 which extends in the circumferential direction of the bushing 9 and has constant width.
Die Verteilerkanäle 22, 23 sind so vorgesehen, daß ihre Schenkel 24, 25 und 26, 27 jeweils bis in Höhe der Ringnuten 18, 19 in der Innenwand der Buchse 9 reichen. Wie sich aus den Fig. 1 und 3 ergibt, erstrecken sich die Schenkel 24, 25; 26, 27 der Verteilerkanäle 22, 23 etwa über ihre halbe Länge in den Bereich der Ringnuten 18, 19. Die Querteile 28, 29 liegen außerhalb des Bereiches der Ringnuten 18, 19.The distribution channels 22, 23 are provided so that their legs 24, 25 and 26, 27 each extend to the level of the annular grooves 18, 19 in the inner wall of the bush 9. As is apparent from Figs. 1 and 3, the legs 24, 25 extend; 26, 27 of the distribution channels 22, 23 approximately over half its length in the region of the annular grooves 18, 19. The transverse parts 28, 29 are outside the range of the annular grooves 18, 19th
An den freien Enden der Schenkel 24, 25; 26, 27 der Verteilerkanäle 22, 23 sind Durchgangsöffnungen 30, 31 vorgesehen, die die Verteilerkanäle 22, 23 mit den Innenringnuten 18, 19 verbinden (Fig. 1 und 3). Die Durchgangsöffnungen 30, 31 sind vorteilhaft als Blenden ausgebildet.At the free ends of the legs 24, 25; 26, 27 of the distribution channels 22, 23 are passage openings 30, 31 are provided which connect the distribution channels 22, 23 with the inner ring grooves 18, 19 (Fig. 1 and 3). The passage openings 30, 31 are advantageously formed as diaphragms.
Es können über den Umfang der Buchse 9 verteilt mehrere solcher Verteilerkanäle 22, 23 vorgesehen sein. Es ist auch möglich, daß die Schenkel 24, 25; 26, 27 schräg zur Achsrichtung liegen oder beispielsweise auch V- förmige Ausbildung haben. Die Verteilerkanäle 22, 23 sind in jedem Fall so ausgebildet, daß auch unterschiedliche Abstände zwischen Zuleitungsboh- rungen im Aufnahmeblock mit den entsprechenden Innenringnuten 18, 19 bzw. den Durchgangsöffnungen 20, 21 in Verbindung gebracht werden können.It can be provided over the circumference of the bush 9 distributed more such distribution channels 22, 23. It is also possible that the legs 24, 25; 26, 27 are at an angle to the axial direction or, for example, also have a V-shaped design. The distribution channels 22, 23 are designed in any case so that also different distances between Zuleitungsboh- ments in the receiving block with the corresponding inner ring grooves 18, 19 and the through holes 20, 21 can be brought into connection.
Die freien Enden der Schenkel 24, 25, 26, 27 der beiden Verteilerkanäle 22, 23 haben den Abstand a voneinander (Fig. 1). Die Schenkel 24, 25, 26, 27 haben eine Länge b. Der Aufnahmeblock 12 hat zwei Arbeitsanschlüsse A, B und einen Druckanschluß P, die jeweils als radiale Bohrungen ausgebildet sind (Fig. 4 bis 6). Die Achse des Arbeitsanschlusses A hat von der Längsachse des Steges 34 den axialen Abstand d (Fig. 2). Der Arbeitsanschluß B hat den axialen Abstand e von der Längsachse des Steges 34. Die beiden Abstände d, e sind vorteilhaft gleich. Die Abstände d, e sind größer als die Länge b der Schenkel 24, 25, 26, 27 der Verteilerkanäle 22, 23, aber kleiner als der Abstand a der freien Enden der Schenkel 24, 25, 26, 27 voneinander. Die Achsen der beiden Arbeitsanschlüsse A, B haben den axialen Abstand c voneinander, der der Summe der Abstände d und e entspricht, aber kleiner ist als der Abstand a. Bei der in Fig. 2 dargestellten optimalen Lage der Buchse 9 im Aufnahmeblock 12 überdecken die Anschlüsse A, B die Querteile 28, 29 der Verteilerkanäle 22, 23 etwa zur Hälfte.The free ends of the legs 24, 25, 26, 27 of the two distribution channels 22, 23 have the distance a from each other (Fig. 1). The legs 24, 25, 26, 27 have a length b. The receiving block 12 has two working ports A, B and a pressure port P, which are each formed as radial bores (Fig. 4 to 6). The axis of the working connection A has the axial distance d from the longitudinal axis of the web 34 (FIG. 2). The working port B has the axial distance e from the longitudinal axis of the web 34. The two distances d, e are advantageously the same. The distances d, e are greater than the length b of the legs 24, 25, 26, 27 of the distribution channels 22, 23, but smaller than the distance a of the free ends of the legs 24, 25, 26, 27 from each other. The axes of the two working ports A, B have the axial distance c from each other, which corresponds to the sum of the distances d and e, but is smaller than the distance a. In the illustrated in Fig. 2 optimum position of the socket 9 in the receiving block 12 cover the terminals A, B, the cross members 28, 29 of the distribution channels 22, 23 about halfway.
Bei dem Abstand c im Verhältnis zu den anderen Abständen a, b, d, e ergeben sich sehr große Spielräume zwischen den Zuleitungen A, B, P sowohl in axialer als auch in radialer Richtung. Für die Abstände zwischen den Zuleitungen im Aufnahmeblock 12 sind aufgrund der beschriebenen Ausbildung der Verteilerkanäle 22, 23 große Freiheitsgrade möglich. Dadurch bestehen Vorteile bei der Gestaltung des Aufnahmeblockes 12 und beim Einbau der Buchse 9.With the distance c in relation to the other distances a, b, d, e, very large clearances arise between the supply lines A, B, P both in the axial and in the radial direction. For the distances between the leads in the receiving block 12 are due to the described design of the distribution channels 22, 23 large degrees of freedom possible. As a result, there are advantages in the design of the receiving block 12 and the installation of the socket. 9
Den radialen Arbeitsanschlüssen A, B ist jeweils einer der beiden Verteilerkanäle 22, 23 zugeordnet. Im Bereich zwischen den radialen Arbeitsanschlüssen A, B ist der Ventilteil 2 mit dem radialen Druckanschluß P versehen, über den das Hydraulikmedium unter Druck dem Cartridgeventil zugeführt wird. In der in den Fig. 2 und 3 dargestellten Stellung ist der Magnetteil 1 nicht bestromt, so daß der Stößel 6 zurückgezogen ist und der Kolben 7 unter der Kraft der Druckfeder 8 seine eine Endstellung einnimmt. Der Druckanschluß P, der durch wenigstens eine radiale Bohrung 33 in der Buchse 9 gebildet wird (Fig. 3), steht in dieser Stellung des Kolbens 7 mit einer Ringnut 32 in der äußeren Mantelfläche des Kolbens 7 in Verbindung. Über diese Ringnut 32 kann der Druckanschluß P mit dem Innenringkanal 18 oder 19 der Buchse 9 verbunden werden, der eine Leitungsverbindung mit dem Verteilerkanal 22 bzw. 23 hat, je nach Stellung des Kolbens 7. Das Hydraulikmedium kann somit über den Druckanschluß P, die Ringnut 32, den Innenringkanal 18 oder 19 und den Verteilerkanal 22 oder 23 zum Arbeitsanschluß A oder B strömen. Der jeweils andere Arbeitsanschluß ist durch den Kolben 7 vom Druckanschluß P getrennt.The radial working ports A, B is in each case assigned to one of the two distribution channels 22, 23. In the area between the radial working ports A, B, the valve member 2 is provided with the radial pressure port P, via which the hydraulic medium is supplied under pressure to the cartridge valve. In the position shown in Figs. 2 and 3, the magnetic member 1 is not energized, so that the plunger 6 is withdrawn and the piston. 7 under the force of the compression spring 8 assumes its one end position. The pressure port P, which is formed by at least one radial bore 33 in the bush 9 (FIG. 3), is in this position of the piston 7 with an annular groove 32 in the outer circumferential surface of the piston 7 in connection. About this annular groove 32, the pressure port P can be connected to the inner ring channel 18 or 19 of the bushing 9, which has a line connection with the distribution channel 22 and 23, depending on the position of the piston 7. The hydraulic medium can thus via the pressure port P, the annular groove 32, the inner ring channel 18 or 19 and the distribution channel 22 or 23 to the working port A or B flow. The other working port is separated from the pressure port P by the piston 7.
Soll der Kolben 7 gegen die Kraft der Druckfeder 8 verschoben werden, wird der Magnetteil 1 bestromt, so daß der Stößel 6 in den Fig. 2 und 3 nach rechts verschoben wird. Der jeweils nicht mit dem Druckanschluß P verbundene Arbeitsanschluß A oder B ist mit einem axialen Tankanschluß T verbunden, so daß das über den Arbeitsanschluß A bzw. B verdrängte Hydrau- likmedium durch den Kolben 7 dem Tank T zuströmen kann. Das Hydraulikmedium strömt durch das offene Kolbenende und den Ring 17.If the piston 7 to be moved against the force of the compression spring 8, the magnetic part 1 is energized, so that the plunger 6 is moved in Figs. 2 and 3 to the right. The working connection A or B not connected to the pressure connection P is connected to an axial tank connection T, so that the hydraulic medium displaced via the working connection A or B can flow through the piston 7 to the tank T. The hydraulic medium flows through the open piston end and the ring 17th
Die in den Fig. 4 bis 6 angegebenen Winkel x, y, z zwischen den Achsen der Anschlüsse A, B, P und den Verteilerkanälen 22, 23 können variabel sein.The angles x, y, z between the axes of the connections A, B, P and the distribution channels 22, 23 indicated in FIGS. 4 to 6 can be variable.
Die beiden Arbeitsanschlüsse A, B sind mit den entsprechenden Druckkammern des Nockenwellenverstellers verbunden. Er hat einen Stator mit radial nach innen ragenden Flügeln, die mit Abstand voneinander längs des Um- fanges des Stators vorgesehen sind und an der Mantelfläche eines zylindrischen Grundkörpers eines Rotors dichtend anliegen. Er sitzt drehfest auf der Nockenwelle und weist von seinem Grundkörper radial nach außen abstehende Flügel auf. Sie greifen in den Bereich zwischen jeweils zwei benachbarten Statorflügeln und liegen dichtend an der Innenwand des Stators an. Zwischen jedem Rotorflügel und den benachbarten Statorflügeln wird jeweils eine Druckkammer gebildet, die mit den Arbeitsanschlüssen A bzw. B des Cartridgeventils verbunden ist. Der Stator ist mit einem Antriebsrad drehfest verbunden, das über eine Kette oder einen Riemen mit einer Kurbelwelle der Verbrennungskraftmaschine antriebsverbunden ist. Sn der einen Endstellung des Rotors liegen dessen Flügel an einer Seitenwand der Statorflügel an. Aus dieser Endstellung kann der Rotor relativ zum Stator maximal so weit gedreht werden, daß die Rotorflügel an den gegenüberliegenden Statorflügeln anliegen. Diese Relativverdrehung des Rotors in bezug auf den Stator erfolgt dadurch, daß je nach gewünschter Drehrichtung der Arbeitsanschluß A oder B des Cartridgeventils mit der jeweiligen Druckkammer des Nocken- wellenverstellers verbunden wird. Bei der Relativverdrehung des Rotors wird das in der nicht druckbeaufschlagten Druckkammer befindliche Hydraulikmedium in der beschriebenen Weise zum Tank T über das Cartridgeventil verdrängt.The two working ports A, B are connected to the corresponding pressure chambers of the camshaft adjuster. It has a stator with radially inwardly projecting vanes, which are provided at a distance from one another along the circumference of the stator and bear sealingly against the lateral surface of a cylindrical main body of a rotor. He sits non-rotatably on the camshaft and has from its base radially outwardly projecting wings. They engage in the area between each two adjacent stator blades and are sealingly against the inner wall of the stator. Between each rotor blade and the adjacent stator blades a pressure chamber is formed in each case, which is connected to the working ports A and B of the cartridge valve. The stator is non-rotatable with a drive wheel connected, which is drivingly connected via a chain or a belt with a crankshaft of the internal combustion engine. Sn of an end position of the rotor are its wings on a side wall of the stator at. From this end position of the rotor can be rotated relative to the maximum maximum so that the rotor blades abut the opposite stator blades. This relative rotation of the rotor with respect to the stator takes place in that, depending on the desired direction of rotation of the working port A or B of the cartridge valve is connected to the respective pressure chamber of the camshaft adjuster. In the relative rotation of the rotor located in the non-pressurized pressure chamber hydraulic medium is displaced in the manner described to the tank T via the cartridge valve.
Bei einer anderen Ausführungsform kann der Druckanschluß P auch axial und der Tankanschluß T radial vorgesehen sein. Dem radialen Druck- oder Tankanschluß P, T ist vorteilhaft ebenfalls ein Verteilerkanal 22 zugeordnet.In another embodiment, the pressure port P may also be provided axially and the tank port T radially. The radial pressure or tank connection P, T is advantageously also associated with a distribution channel 22.
Die Ausführungsform gemäß den Fig. 7 bis 12 unterscheidet sich vom vorigen Ausführungsbeispiel nur dadurch, daß die Buchse 9 keine Innenringka- näle bzw. Ringnuten aufweist. Die Verteilerkanäle 22, 23 sind in Leitungsverbindung mit den Arbeitsanschlüssen A, B im Aufnahmeblock 12. Die Buchse 9 nimmt den Kolben 7 auf, der in seiner äußeren Mantelfläche die Ringnut 35 aufweist. Über sie kann der Druckanschluß P je nach Stellung des Kolbens 7 mit dem Arbeitsanschluß A oder B leitungsverbunden sein.The embodiment according to FIGS. 7 to 12 differs from the previous embodiment only in that the bush 9 has no inner ring channels or annular grooves. The distribution channels 22, 23 are in line connection with the working ports A, B in the receiving block 12. The bushing 9 receives the piston 7, which has the annular groove 35 in its outer circumferential surface. About them, the pressure port P can be conductively connected depending on the position of the piston 7 to the working port A or B.
Die Abstände a bis e sind im Verhältnis zueinander gleich wie bei der vorigen Ausführungsform. The distances a to e are equal to each other in relation to the previous embodiment.

Claims

1. Cartridgeventil, insbesondere für Nockenwellenversteller, mit einem Antriebsteil und einem Ventilteil, der eine Buchse aufweist, in der ein Kolben verschiebbar ist und die mindestens eine Vertiefung aufweist, in die wenigstens ein Anschluß mündet, dadurch gekennzeichnet, daß die Vertiefung (22, 23) eine Längen- und/oder Breitenausdehnung hat, die größer ist als der Querschnitt des Anschlusses (A, B).1. Cartridge valve, in particular for camshaft adjusters, with a drive part and a valve part which has a bush in which a piston is displaceable and which has at least one depression into which at least one connection opens, characterized in that the depression (22, 23 ) has a length and / or width extension that is larger than the cross section of the connection (A, B).
2. Cartridgeventil nach Anspruch 1 , dadurch gekennzeichnet, daß die Vertiefung (22, 23) wenigstens einen Abschnitt (24, 25; 26, 27) aufweist, der zumindest eine in Achsrichtung der Buchse (9) verlaufende Komponente hat.2. Cartridge valve according to claim 1, characterized in that the recess (22, 23) has at least one section (24, 25; 26, 27) which has at least one component running in the axial direction of the bushing (9).
3. Cartridgeventil nach Anspruch 2, dadurch gekennzeichnet, daß der Abschnitt (24, 25; 26, 27) in Axialrichtung der Buchse (9) verläuft.3. Cartridge valve according to claim 2, characterized in that the section (24, 25; 26, 27) extends in the axial direction of the bushing (9).
4. Cartridgeventil nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Vertiefung (22, 23) zwei Abschnitte (24, 25; 26, 27) aufweist.4. Cartridge valve according to claim 2 or 3, characterized in that the recess (22, 23) has two sections (24, 25; 26, 27).
5. Cartridgeventil nach Anspruch 4, dadurch gekennzeichnet, daß die beiden Abschnitte (24, 25; 26, 27) parallel zueinander verlaufen.5. Cartridge valve according to claim 4, characterized in that the two sections (24, 25; 26, 27) run parallel to one another.
6. Cartridgeventil nach Anspruch 4, dadurch gekennzeichnet, daß die beiden Abschnitte (24, 25; 26, 27) winkelversetzt zur Ventilachse angeordnet sind.6. Cartridge valve according to claim 4, characterized in that the two sections (24, 25; 26, 27) are arranged at an angle to the valve axis.
7. Cartridgeventil nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Buchse (9) wenigstens zwei Vertie- fungen (22, 23) aufweist, denen jeweils ein Anschluß (A, B) zugeordnet ist.7. Cartridge valve according to one of claims 1 to 6, characterized in that the bushing (9) has at least two vertical fungen (22, 23), each of which a connection (A, B) is assigned.
8. Cartridgeventil nach Anspruch 7, dadurch gekennzeichnet, daß die beiden Vertiefungen (22, 23) spiegelbildlich zueinander angeordnet sind.8. Cartridge valve according to claim 7, characterized in that the two depressions (22, 23) are arranged in mirror image to one another.
9. Cartridgeventil nach Anspruch 7, dadurch gekennzeichnet, daß die beiden Vertiefungen (22, 23) unterschiedlich ausgebildet sind.9. Cartridge valve according to claim 7, characterized in that the two recesses (22, 23) are designed differently.
10. Cartridgeventil nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß die beiden Vertiefungen (22, 23) axial hintereinander liegen.10. Cartridge valve according to one of claims 7 to 9, characterized in that the two depressions (22, 23) lie axially one behind the other.
11. Cartridgeventil nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß die beiden Vertiefungen (22, 23) in Umfangsrichtung der Buchse (9) versetzt zueinander liegen.11. Cartridge valve according to one of claims 7 to 10, characterized in that the two recesses (22, 23) in the circumferential direction of the socket (9) are offset from one another.
12. Cartridgeventil nach einem der Ansprüche 7 bis 11 , dadurch gekennzeichnet, daß Querteile (28, 29) der Vertiefungen (22, 23) benachbart zueinander liegen.12. Cartridge valve according to one of claims 7 to 11, characterized in that transverse parts (28, 29) of the depressions (22, 23) lie adjacent to one another.
13. Cartridgeventil nach Anspruch 12, dadurch gekennzeichnet, daß sich die Querteile (28, 29) der Vertiefungen (22, 23) in Umfangsrichtung der Buchse (9) erstrecken.13. Cartridge valve according to claim 12, characterized in that the transverse parts (28, 29) of the depressions (22, 23) extend in the circumferential direction of the bushing (9).
14. Cartridgeventil nach einem der Ansprüche 7 bis 13, dadurch gekennzeichnet, daß die voneinander abgewandten Enden der Vertiefungen (22, 23) einen Abstand (a) haben, der größer ist als der Abstand (c) zwischen den Achsen der Anschlüsse (A, B).14. Cartridge valve according to one of claims 7 to 13, characterized in that the ends of the depressions (22, 23) facing away from one another have a distance (a) which is greater than the distance (c) between the axes of the connections (A, B).
15. Cartridgeventil nach Anspruch 14, dadurch gekennzeichnet, daß die axiale Länge (b) der Vertiefung (22, 23) kleiner ist als der halbe Abstand (a).15. Cartridge valve according to claim 14, characterized in that the axial length (b) of the recess (22, 23) is less than half the distance (a).
16. Cartridgeventil nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Vertiefung (22, 23) über wenigstens eine Durchgangsöffnung mit einem Innenringkanal (18, 19) der Buchse (9) leitungsverbunden ist.16. Cartridge valve according to one of claims 1 to 15, characterized in that the recess (22, 23) via at least one through opening with an inner ring channel (18, 19) of the socket (9) is line-connected.
17. Cartridgeventil nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß der Kolben (7) einen Außenringkanal (35) aufweist, mit dem wahlweise einer der Anschlüsse (A, B) mit einem Druckanschluß (P) in Leitungsverbindung bringbar ist.17. Cartridge valve according to one of claims 1 to 15, characterized in that the piston (7) has an outer ring channel (35) with which one of the connections (A, B) with a pressure connection (P) can be brought into line connection.
18. Cartridgeventil nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, daß der Ventilteil (2) einen radialen Druckoder Tankanschluß (P, T) aufweist, dem eine Bohrung (33) in der Buchse (9) zugeordnet ist. 18. Cartridge valve according to one of claims 1 to 17, characterized in that the valve part (2) has a radial pressure or tank connection (P, T), to which a bore (33) in the bush (9) is assigned.
PCT/EP2005/002349 2004-04-02 2005-03-05 Cartridge valve, especially for a camshaft regulator WO2005098205A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE502005000069T DE502005000069D1 (en) 2004-04-02 2005-03-05 CARTRIDGE VALVE, ESPECIALLY FOR CAMSHAFT ADJUSTERS
EP05715769A EP1623099B1 (en) 2004-04-02 2005-03-05 Cartridge valve, especially for a camshaft regulator

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Application Number Priority Date Filing Date Title
DE102004017790A DE102004017790A1 (en) 2004-04-02 2004-04-02 Cartridge valve, in particular for camshaft adjuster
DE102004017790.2 2004-04-02

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AT (1) ATE337473T1 (en)
DE (2) DE102004017790A1 (en)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011051656A1 (en) 2011-07-07 2013-01-10 Hydraulik-Ring Gmbh Slew motor adjuster for internal combustion engine, has rotor rotatably connected with camshaft, where rotor is pivotable in opposite set pivot direction against stator and hydraulic piston that is displaceable within guide bore

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5247965A (en) * 1990-11-05 1993-09-28 Aisin Aw Co., Ltd. Linear solenoid valve apparatus
US6089575A (en) * 1997-03-15 2000-07-18 Ina Walzlager Schaeffler Ohg Sealed seat for a hydraulic switching element in a mounting space for a direct-controlled cartridge valve in an insertion bore

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5247965A (en) * 1990-11-05 1993-09-28 Aisin Aw Co., Ltd. Linear solenoid valve apparatus
US6089575A (en) * 1997-03-15 2000-07-18 Ina Walzlager Schaeffler Ohg Sealed seat for a hydraulic switching element in a mounting space for a direct-controlled cartridge valve in an insertion bore

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ATE337473T1 (en) 2006-09-15
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DE502005000069D1 (en) 2006-10-05
EP1623099B1 (en) 2006-08-23

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