WO2010118930A1 - Distributeur hydraulique - Google Patents

Distributeur hydraulique Download PDF

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Publication number
WO2010118930A1
WO2010118930A1 PCT/EP2010/053729 EP2010053729W WO2010118930A1 WO 2010118930 A1 WO2010118930 A1 WO 2010118930A1 EP 2010053729 W EP2010053729 W EP 2010053729W WO 2010118930 A1 WO2010118930 A1 WO 2010118930A1
Authority
WO
WIPO (PCT)
Prior art keywords
groove
valve
directional control
valve housing
control valve
Prior art date
Application number
PCT/EP2010/053729
Other languages
German (de)
English (en)
Inventor
Jens Hoppe
Stefan Konias
Original Assignee
Schaeffler Technologies Gmbh & Co. Kg
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 Schaeffler Technologies Gmbh & Co. Kg filed Critical Schaeffler Technologies Gmbh & Co. Kg
Publication of WO2010118930A1 publication Critical patent/WO2010118930A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603—Multiple-way valves
    • F16K31/061—Sliding valves
    • F16K31/0613—Sliding valves with cylindrical slides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-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
    • F01L1/344—Valve-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
    • F01L1/3442—Valve-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 using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-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
    • F01L1/344—Valve-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
    • F01L1/3442—Valve-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 using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • F01L2001/3443—Solenoid driven oil control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-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
    • F01L1/344—Valve-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
    • F01L1/3442—Valve-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 using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34436—Features or method for avoiding malfunction due to foreign matters in oil
    • F01L2001/3444—Oil filters

Definitions

  • the invention relates to a hydraulic directional control valve with a valve housing and a filter element, wherein on the valve housing at least one extending in the circumferential direction groove is provided, wherein the filter element is arranged in the groove and a frame and a fixedly connected to this filter fabric and wherein the Groove has a groove bottom and two substantially in the radial direction and circumferential direction extending side walls.
  • Such directional control valves are used in internal combustion engines, for example for controlling hydraulic camshaft adjusters or switchable cam followers, for example switchable drag levers, bucket tappets or roller tappets.
  • the directional control valves consist of an actuating unit and a valve section.
  • the actuating unit may be, for example, an electromagnetic or hydraulic actuator.
  • the valve section represents the hydraulic section of the directional control valve, wherein a supply connection, at least one working connection and a tank connection are usually formed on it. By means of the actuator targeted specific connections of the valve section can be hydraulically connected to each other and thus the pressure medium flows are directed.
  • valve section consists of a valve housing and one axially therein displaceably arranged control piston.
  • the valve housing is usually arranged within a cylindrical, blind hole-like receptacle of the cylinder head or a central bore of the camshaft adjuster.
  • On the outer circumferential surface of the valve housing four annular grooves are formed, wherein in each groove bottom holes are formed, which serve as pressure medium connections.
  • a pressure medium channel is formed per annular groove, which opens into the respective annular groove.
  • pressure medium can enter the interior of the valve housing or emerge from the interior of the valve housing.
  • a control piston is arranged axially displaceable, wherein the outer diameter of the control piston is adapted to the inner diameter of the valve housing.
  • ring grooves are likewise formed on the control piston, via which adjacent pressure medium connections can be connected to one another.
  • a coil and an armature are arranged inside the actuator.
  • the armature By energizing the coil, the armature is displaced in the axial direction, wherein this movement is transmitted to the control piston by means of a push rod attached to the armature.
  • a spring acts on the control piston, which is supported on the valve housing and acts on the piston in the axial direction to the actuating unit with a force.
  • Directional valves for controlling switchable cam followers are usually designed as switching valves.
  • Such a switching valve is, in one embodiment known as a 3/2-way valve, for example from DE 103 59 363 A1.
  • the function and design of the electromagnetic actuator are largely analogous to that of the proportional valve.
  • an inlet connection, a working connection and a tank connection are formed on the valve section.
  • the working connection communicates via a respective opening formed as a valve seat with both the inlet and the tank connection.
  • a control piston is further arranged, on which two closing elements are formed. Each closing element can, depending on the position of the control piston within the valve body, the pressure means uss lock or release through one of the valve seats.
  • the working connection can thus be selectively connected to the inlet connection or to the tank connection.
  • the axial position of the control piston is in turn set via the axial position of the armature relative to the second magnetic yoke.
  • a ring filter is assigned to each of the hydraulic connections.
  • Each ring filter is positioned in one of the annular grooves, each ring filter extending along the entire circumferential direction of the circular groove bottom.
  • the ring filters have a frame made of an elastic plastic.
  • the frame has two extending in the circumferential direction of the valve housing frame members facing each other in the axial direction and are connected to each other via cross braces. Between the frame members and the cross struts a filter fabric is arranged.
  • the filter fabric can be inserted for example in the production of the frame as an injection molded part in the injection mold and molded with the plastic.
  • the frame is flexible and has in the circumferential direction two opposing open ends, which can be connected to each other by means of a closure after inserting the ring filter in the groove.
  • the cross braces are obstacles to the pressure medium, which determine the flow characteristics of the directional control valve.
  • the flow resistance of this connection increases or decreases.
  • uncontrolled relative movements of the filter element in the circumferential direction of the valve housing can be caused due to the radial clearance between the annular groove and the frame. These can be triggered for example by the flow forces of the flowing pressure medium. This can be a significant throttling or Entdrosselung individual connections, resulting in an unwanted, time-varying change in the directional control valve characteristic, and thus in the worst case may lead to failure of the control of the connected hydraulic consumer.
  • a misorientation already during the assembly of the filter element in the annular groove is arranged.
  • the invention is therefore based on the object to avoid these disadvantages and thus to provide a hydraulic directional control valve, which has at least one filter element to protect one of the hydraulic connections from contamination of the pressure medium, wherein the provided valve characteristic over the entire life of the internal combustion engine is maintained should.
  • this object is achieved by at least one of the side walls having at least one axial recess and in that at least one axial side surface of the frame, a positive locking element is formed, which engages in the recess.
  • the example cylindrical valve housing of the hydraulic directional control valve has at least one groove, which extends in the missiongehchtung of the valve housing and may be formed, for example, as an annular groove.
  • the groove has a groove base extending essentially in the circumferential direction and in the axial direction and two side walls extending essentially in the radial direction and in the circumferential direction, which delimit the groove which opens radially outwards.
  • the filter element which may for example be designed as a ring filter, arranged.
  • the filter element has a filter fabric, which is bounded by a frame, which is made for example of a suitable plastic.
  • the generally pressure medium impermeable frame keeps the filter fabric in the desired shape during the passage of pressure medium.
  • the frame may have two frame members extending in the circumferential direction, in the case of a ring filter circular frame members which are arranged on each one axial side surface of the filter element.
  • the frame is adapted to the shape of the groove.
  • the groove is designed to be open radially outward and is bounded radially inwardly by a, for example, cylinder shell-shaped, groove base and in the axial direction by one, for example annular, side wall.
  • an axial recess is formed on at least one of the side walls.
  • a form-fitting element for example a projection, is formed, which engages in the recess.
  • both side walls of a groove have at least one axial recess and that at least one positive-locking element is formed on both axial side surfaces of the frame, which engage in the corresponding recess.
  • the positive connection is made by means of several form-fitting partners, whereby higher forces can be absorbed in the circumferential direction without the filter element changes its position.
  • the recesses can be realized by means of a drilling process. If the drill in the axial direction of the groove centrally attached to the center, can be realized in one step two recesses, one in each of the two side walls of the groove facing each other in the axial direction.
  • the groove base has at least one bore and the circular lines of the circle segments and the bore are arranged concentrically to each other.
  • Form is provided at least one radial bore in each groove bottom through which the groove communicates with the interior of the valve housing.
  • the recesses are arranged in the region of the bore and in turn formed as circular segments.
  • the circular lines of the circle segments lie on a circle which is concentric with that of the bore (ie, both circles share an identical center). In this case, the diameter of the circular line of the circular segments is larger than the diameter of the bore formed.
  • the recesses and the holes can be formed by means of a stepped drill in one step.
  • a plurality of holes per groove bottom wherein the recesses may be formed at each or only individual holes.
  • FIG. 1 shows the valve section of an inventive hydraulic directional control valve in a plan view
  • FIG. 2 shows the valve section from FIG. 1 with filter elements
  • FIG. 3 shows a hydraulic directional control valve according to the prior art in a plan view.
  • the directional control valve 1 shows a hydraulic directional control valve 1 according to the prior art in a plan view, using the example of a 4/3-Wegeproprtionalventils executed
  • the directional control valve 1 consists of an actuating unit 2 and a valve section 3.
  • Such directional control valves 1 are used for example for controlling hydraulic camshaft adjusters.
  • the valve section 3 of the directional control valve 1 is usually accommodated in a receptacle of a surrounding construction, for example a cylinder head or a cylinder head cover.
  • the valve section 3 has a substantially cylindrically designed valve housing 6 and a control piston 7.
  • the valve housing 6 is formed as a separate component and firmly connected to the actuator 2.
  • each groove 9 is bounded radially inwardly by a cylinder jacket-shaped groove base 10 and in the axial direction by an annular side wall 4.
  • the grooves 9 communicate via formed in the Nutgen 10 holes 11 with the interior of the substantially hollow cylindrical valve housing 6.
  • the holes 11 of the grooves 9 and the electromagnetic actuator 2 opposite opening 18 of the valve housing 6 serve as fluid ports A, B, P, T.
  • the outer casing surface 8 of the valve housing 6 bears against an inner circumferential surface of the receptacle in such a way that the grooves 9 are hydraulically separated from one another.
  • the control piston 7 is arranged axially displaceable.
  • the outer diameter of the control sections 12 is adapted to the inner diameter of the valve housing 6.
  • control piston 7 is acted on at one end by the force of a spring element, not shown, in the direction of the electromagnetic setting unit 2. At the other axial end of the control piston 7 is located on a push rod, not shown, which is connected to an armature of the actuator 2, not shown.
  • control piston 7 In the de-energized state of the actuator 2, the control piston 7 is urged in the direction of the electromagnetic actuator 2 due to the force of the spring element. By energizing the actuator 2, the control piston 7 is moved against the force of the spring element.
  • a filter element 13 in the illustrated embodiment, a ring filter is arranged, which extends along the entire circumference of the groove 9.
  • the filter element 13 has a frame 14 and a filter fabric 15.
  • the frame 14 comprises two extending in the circumferential direction of the valve housing 6 frame members 16, which are interconnected by means of axially extending transverse struts 17. Between the frame members 16 and the transverse struts 17, the filter fabric 15 is arranged.
  • Pressure medium which is conveyed by the pressure medium pump, not shown, to the central groove 9, passes through the filter fabric 15 to the holes 11 and thus into the interior of the directional control valve 1, wherein foreign matter located in the pressure medium are kept away from the interior of the directional control valve 1.
  • the filter element 13 is arranged with radial play in the groove 9.
  • the filter element 13 can rotate within the groove 9, whereby the position of the transverse struts 17 can change relative to the holes 11 or the opening of a pressure medium channel in the surrounding structure.
  • the flow of the pressure medium can be influenced such that the characteristic of the directional control valve 1 changes and thus the control of the consumer, for example the camshaft adjuster, is impaired.
  • Figures 2 and 3 show an embodiment of a hydraulic directional control valve 1 according to the invention, in which this disadvantage is avoided.
  • the valve housing 6 is shown without the filter elements 13.
  • each side wall 4 of the grooves 9 a plurality of recesses 5 are formed, which extend in the axial direction.
  • the recesses 5 are formed in a circular segment.
  • the boundaries of axially adjacent circular segments 19 lie on a common circular line.
  • axially adjacent recesses 5 can be introduced into the valve housing 6 by means of a single drilling operation.
  • the circular line of axially adjacent recesses 5 is formed coaxially with the circular line of the bore 11. Both circles are thus arranged around an identical center.
  • the recesses 5 and the holes 11 can be formed simultaneously with the aid of a stepped drill, whereby the manufacturing cost is significantly reduced.
  • FIG. 3 shows the valve housing 6 from FIG. 2 with filter elements 13 mounted.
  • the filter elements 13 are similar to those described in the prior art.
  • the illustrated filter elements 13 have a form-fitting element 20 (outer filter elements 13) or two form-fitting elements 20 (inner filter element 13), which extend from one of the frame elements 16 in the axial direction into one of the recesses 5.
  • a positive connection between the respective filter element 13 and the corresponding side wall 4 of the groove 9 is formed in the circumferential direction, whereby a twisting of the filter element 13 with respect to the groove 9 is effectively counteracted.
  • the recesses 5 advantageously extend along the entire radial extent of the respective side wall 4, whereby a simple mounting of the filter element 13 is ensured.
  • the mold closing element 20 prevents that the mold closing element 20 from slipping out of the recess when the filter element 13 is radially dipped or stretched during operation by the pressure medium flow or pressure pulses.
  • modified embodiments are also conceivable.
  • only one recess 5 may be formed on the valve housing 6, whereby the filter element 13 is given a mounting orientation.
  • a plurality of mold closing elements 20 may be formed on the frame element or elements 16, whereby higher forces can be accommodated in the circumferential direction.
  • embodiments are also conceivable in which the recesses 5 or the transverse struts 17 are arranged offset in the circumferential direction to the bores 11.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Housings (AREA)

Abstract

L'invention concerne un distributeur hydraulique (1) comportant un boîtier de distributeur (6) et un élément filtrant (13), le boîtier (6) présentant au moins une rainure (9) circonférentielle. L'élément filtrant (13) est disposé dans la rainure (9) et comprend un cadre (14) et un tissu filtrant (15) solidaire de ce dernier. La rainure (9) comprend un fond de rainure (10) et deux parois latérales (4) qui s'étendent sensiblement dans la direction radiale et circonférentielle.
PCT/EP2010/053729 2009-04-18 2010-03-23 Distributeur hydraulique WO2010118930A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910018044 DE102009018044A1 (de) 2009-04-18 2009-04-18 Hydraulisches Wegeventil
DE102009018044.3 2009-04-18

Publications (1)

Publication Number Publication Date
WO2010118930A1 true WO2010118930A1 (fr) 2010-10-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/053729 WO2010118930A1 (fr) 2009-04-18 2010-03-23 Distributeur hydraulique

Country Status (2)

Country Link
DE (1) DE102009018044A1 (fr)
WO (1) WO2010118930A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU92162B1 (de) * 2012-03-05 2014-09-29 Schaeffler Technologies Ag Filteranordnung eindes Steuerventils für einen Nockenwellenversteller
US9284860B2 (en) 2010-11-09 2016-03-15 Schaeffler Technologies AG & Co. KG Valve housing for a control valve of a camshaft adjusting system, and method for producing a valve housing
CN110832172A (zh) * 2017-09-19 2020-02-21 伊希欧1控股有限公司 具有由外部执行器定位且包括凹槽的阀芯的用于控制凸轮相位器的油控制阀
CN111794822A (zh) * 2020-06-24 2020-10-20 句容嘉晟汽车配件有限公司 一种vvt发动机耐高温机油控制阀

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011002150B4 (de) * 2011-04-19 2013-01-17 Hydraulik-Ring Gmbh Cartridgeventil
US20170356562A1 (en) * 2016-06-10 2017-12-14 Husco Automotive Holdings Inc. Systems and methods for filter orientation on a control valve

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10027080A1 (de) 1999-06-10 2001-03-22 Unisia Jecs Corp Öldrucksteuervorichtung für einen Verbrennungsmotor
US20030226593A1 (en) * 2002-06-06 2003-12-11 Motohiro Okada Flow amount control device
FR2857720A1 (fr) * 2003-07-16 2005-01-21 Denso Corp Valve de permutation de passages d'huile contenant un filtre a huile
DE10359363A1 (de) 2003-12-18 2005-07-14 Ina-Schaeffler Kg Elektromagnetisches Hydraulikventil, inbesondere 3/2-Wegeschaltventil zur Steuerung eines variablen Ventiltriebes einer Brennkraftmaschine
JP2007232127A (ja) * 2006-03-02 2007-09-13 Denso Corp 電磁弁
WO2008034879A1 (fr) * 2006-09-22 2008-03-27 Delphi Technologies, Inc. Vanne de regulation d'huile
DE102008049052A1 (de) * 2007-09-28 2009-04-02 Piolax Inc., Yokohama Filterband
WO2010063556A1 (fr) * 2008-12-02 2010-06-10 Schaeffler Technologies Gmbh & Co. Kg Vanne hydraulique multivoies

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10027080A1 (de) 1999-06-10 2001-03-22 Unisia Jecs Corp Öldrucksteuervorichtung für einen Verbrennungsmotor
US20030226593A1 (en) * 2002-06-06 2003-12-11 Motohiro Okada Flow amount control device
FR2857720A1 (fr) * 2003-07-16 2005-01-21 Denso Corp Valve de permutation de passages d'huile contenant un filtre a huile
DE10359363A1 (de) 2003-12-18 2005-07-14 Ina-Schaeffler Kg Elektromagnetisches Hydraulikventil, inbesondere 3/2-Wegeschaltventil zur Steuerung eines variablen Ventiltriebes einer Brennkraftmaschine
JP2007232127A (ja) * 2006-03-02 2007-09-13 Denso Corp 電磁弁
WO2008034879A1 (fr) * 2006-09-22 2008-03-27 Delphi Technologies, Inc. Vanne de regulation d'huile
DE102008049052A1 (de) * 2007-09-28 2009-04-02 Piolax Inc., Yokohama Filterband
WO2010063556A1 (fr) * 2008-12-02 2010-06-10 Schaeffler Technologies Gmbh & Co. Kg Vanne hydraulique multivoies

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9284860B2 (en) 2010-11-09 2016-03-15 Schaeffler Technologies AG & Co. KG Valve housing for a control valve of a camshaft adjusting system, and method for producing a valve housing
LU92162B1 (de) * 2012-03-05 2014-09-29 Schaeffler Technologies Ag Filteranordnung eindes Steuerventils für einen Nockenwellenversteller
US8931449B2 (en) 2012-03-05 2015-01-13 Schaeffler Technologies Gmbh & Co. Kg Filter arrangement of a control valve for a camshaft adjuster
CN110832172A (zh) * 2017-09-19 2020-02-21 伊希欧1控股有限公司 具有由外部执行器定位且包括凹槽的阀芯的用于控制凸轮相位器的油控制阀
CN110832172B (zh) * 2017-09-19 2021-11-26 伊希欧1控股有限公司 阀芯具有凹槽的用于控制凸轮相位器的油控制阀
CN111794822A (zh) * 2020-06-24 2020-10-20 句容嘉晟汽车配件有限公司 一种vvt发动机耐高温机油控制阀
CN111794822B (zh) * 2020-06-24 2022-04-05 句容嘉晟汽车配件有限公司 一种vvt发动机耐高温机油控制阀

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