EP2245277B1 - Insert de guidage de fluide sous pression destiné à une soupape de commande dans un dispositif d'actionnment hydraulique - Google Patents

Insert de guidage de fluide sous pression destiné à une soupape de commande dans un dispositif d'actionnment hydraulique Download PDF

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Publication number
EP2245277B1
EP2245277B1 EP09704539A EP09704539A EP2245277B1 EP 2245277 B1 EP2245277 B1 EP 2245277B1 EP 09704539 A EP09704539 A EP 09704539A EP 09704539 A EP09704539 A EP 09704539A EP 2245277 B1 EP2245277 B1 EP 2245277B1
Authority
EP
European Patent Office
Prior art keywords
guide sleeve
pressure medium
plastic part
conducting insert
medium conducting
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.)
Not-in-force
Application number
EP09704539A
Other languages
German (de)
English (en)
Other versions
EP2245277A1 (fr
Inventor
Jens Hoppe
Stefan Konias
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and 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 AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP2245277A1 publication Critical patent/EP2245277A1/fr
Application granted granted Critical
Publication of EP2245277B1 publication Critical patent/EP2245277B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • 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 Druckstoffleitrise for a control valve in a hydraulic actuator with a tubular guide sleeve for guiding a control piston, which is arranged in a receptacle.
  • EP 1840362 A1 is a pressure medium insert for a control valve) in a hydraulic adjusting device with a tubular guide sleeve for guiding a control piston, which is arranged in a receptacle with arranged in the guide sleeve by webs separate passage openings for the pressure medium known
  • the object of the invention is to provide a favorable in terms of material and manufacturing costs Druckstoffleitinate.
  • a plastic part is arranged, which has sealing webs, which on the inside on the webs separating the passages of the guide sleeve support and outside sealing against the inside of the recording.
  • a control valve usually consists of a hydraulic section and an actuator.
  • the hydraulic section has a valve housing and a control piston arranged therein and displaceable by the actuator.
  • the pressure medium pipe insert is understood to mean the valve housing of the hydraulic section.
  • the receptacle is formed in these cases, for example, on a rotor of the hydraulic actuator or a cylinder head or cylinder head cover, in which the hydraulic section can be accommodated, wherein the valve housing sealingly abuts the boundary surface of the receptacle.
  • an intermediate sleeve is inserted between the valve housing and the control piston in order to realize, for example, more complex flow paths for the pressure medium.
  • the intermediate sleeve can be regarded as Druckstoffleitrise, which is received in the receptacle formed by the valve housing.
  • control valves are conceivable in which the invention can be realized.
  • a Druckstoffleitrise which consists of a guide sleeve, which may be made of a very thin-walled blank, preferably a tube, and a plastic part, which can be inexpensively manufactured in an injection molding process.
  • the plastic part of the Druckstoffleit respondents seals this in the recording and prevents the pressure fluid can inadvertently penetrate from a Druckmiaritkanal in an adjacent Druckstoffleitkanal.
  • the degree of material utilization of the Druckstoffleitmbies is thus significantly improved, since a majority of the wall thickness of the Druckstoffleitgoves is now formed from the inexpensive injection-molded plastic part.
  • a tube can be used for the guide sleeve, in which only the through holes must be drilled, so that the necessary machining for the component is reduced to a minimum overall.
  • the pressure medium insert can have an integrated filter fabric, so that any further filter elements can be omitted. As a result, a very large and arranged directly on the control edges filter surface is created. Furthermore, eliminates any additional installation work for the filter elements.
  • the guide sleeve and the plastic part are connected to each other in the longitudinal direction of the guide sleeve via a positive connection, so that both parts can not move in the longitudinal direction to each other.
  • annular grooves can be provided on the outside of the guide sleeve in the region of the passage openings, which ensure the best oil flow.
  • the plastic part may preferably be formed by an encapsulation of the guide sleeve, which represents a particularly cost-effective manner of production.
  • the passage openings are arranged in the proposed lower-lying annular grooves, it makes sense to support the slide tools for the encapsulation process on the higher-lying webs, so that the lower-lying annular grooves with the passage openings arranged therein do not come into contact with the encapsulation material during the injection process can.
  • the proposed filter fabric can be arranged on the guide sleeve prior to the encapsulation process, so that this is fixed after the encapsulation of the guide sleeve between the latter and the plastic part.
  • the plastic part is made as a separate part, it is proposed to fasten this by means of a latching, pressing and / or adhesive connection to the guide sleeve.
  • the proposed filter fabric is then already in the manufacture of the plastic part with molded, so that the filter fabric itself is part of the plastic part.
  • the guide sleeve has on one side a connecting piece with an axial bore for a pressure medium inlet and / or for connecting an actuator.
  • a tube can be used cost-effectively for the guide sleeve, wherein the considerably more massive connector can be made separately. Overall, thus further decreases the required proportion of machining, since the dimensions of the guide sleeve forming blank are no longer determined by the connector.
  • the connector may be positively connected to the plastic part, so that the connector is connected via the held on the guide sleeve plastic part with the guide sleeve.
  • a particularly simple connection of all three parts is to connect the connector and the plastic part together so that the guide sleeve is held between the two parts.
  • FIG 5 is to recognize a pressure fluid insert 1, which is hollow and has an internally guided connected to an actuator 30 control piston 20.
  • the Druckstoffleitrus 1 itself is in a control valve 14 for a device for the variable adjustment of the timing of gas exchange valves of an internal combustion engine such as in the DE 10 2005 052 481 A1 described arranged.
  • the adjustment of the timing is done by the displacement of the control piston 20 in the Druckstoffleitgan 1 and thus controlled pressure medium flow.
  • the operation of the Druckstoffenbergleitmbies and its arrangement in the control valve is expressly to the DE 10 2005 052 481 A1 which is therefore to be added to the disclosure of this application.
  • the inventively constructed Druckstoffleitrus 1 in the Figures 1a -1c has a three-part basic structure with a guide sleeve 2, a connector 4 associated with the actuator 30 and an overmolded plastic part 3.
  • the guide sleeve 2 serves to guide the control piston 20, and is provided with closable by this openings 6.
  • the overmolded plastic part 3 is used to seal the Druckstoffleitunes 1 in the recording, and the mutual sealing of the Druckmiachitachäle. Due to the inventive design of the Druckstoffleit conses 1, it is only necessary to edit the thin-walled guide sleeve 2, while the significantly thicker required for the seal wall thickness is formed by the plastic part 3.
  • a tubular filter 5 is further arranged, which is arranged on the latter before the encapsulation of the guide sleeve 2 and thereby ideally after encapsulation all passage openings 6 covers.
  • the passage openings 6 are arranged in the manner of a grid consisting of three rows of 6 openings. Due to the regular arrangement of the passage openings 6 straight webs 8 are formed between the passage openings on which the sealing webs 9 of the plastic part 3 are supported radially inwardly.
  • sealing webs 9 of the plastic part 3 With the arrangement of the sealing webs 9 of the plastic part 3 on the webs 8 of the guide sleeve 2 sufficient support of the sealing webs 9 is provided so that they can fulfill their proper function, namely on the inner wall of the receptacle 15, the Druckmivantitkanäle each other properly.
  • a groove 10 is provided, in which plastic material can flow during encapsulation, so that after hardening of the plastic a positive connection between plastic part 3 and guide sleeve 2 results and the plastic part 3 in the longitudinal direction of the guide sleeve 2 can not slip.
  • the passage openings 6 are arranged in annular grooves 7, so that there is a shoulder 12 between the passage openings 6, on which the slide tool can be supported during the extrusion coating while clamping the filter 5.
  • FIGs 2a-2c shows an alternative embodiment of the invention, in which the connecting piece 4 and the guide sleeve 2 is formed from two separate parts.
  • a tube can be used for the guide sleeve 2, in which only the passages 6 must be drilled.
  • the much more massive connector can then be made as a separate part, for example, with a machining.
  • a holding member 11 is provided with a radially outwardly projecting hook, which is encapsulated by the plastic part 3, and the plastic part 3 secures in the longitudinal direction.
  • the holding element 11 may be formed integrally with the connecting piece 4 or as a separate clamping ring on the guide sleeve 2.
  • FIGS. 3a-3c is a further alternative embodiment to recognize, in which the plastic part 3 is fixed with molded filter 5 as a finished part on the guide sleeve 2.
  • the filter 5 is encapsulated on both sides by inner layers 3c and outer layers 3d of the plastic part 3, so that there is no contact between the filter 5 and the guide sleeve 2.
  • the connection piece 4 has a cylindrical extension 4a, in which a groove 14 is provided.
  • the plastic part 3 projects beyond the extension 4a and engages with an inwardly projecting shoulder 3a in the groove 14 a.
  • the plastic part 3 is connected in the longitudinal direction via a positive connection with the connector 4.
  • FIGS. 4a-4c is the embodiment of the Fig.3a - 3c can be seen, wherein the plastic part 3 is additionally provided here at its end facing away from the connection piece 4 with an inwardly projecting shoulder 3b.
  • the guide sleeve 2 is thus clamped after the locking of the plastic part 3 with the connector 4 between the paragraph 3b and the connector 4, so that all three items can be assembled in a pre-assembly and then can be installed together as a composite component.
  • a further filter section 5a may be provided, which extends radially between the shoulder 3b.
  • This filter section 5a covers the axial opening of the guide sleeve 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Magnetically Actuated Valves (AREA)
  • Multiple-Way Valves (AREA)

Claims (10)

  1. Insert de guidage de fluide sous pression (1) pour une soupape de commande (14) dans un dispositif d'actionnement hydraulique, comprenant un manchon de guidage tubulaire (2) pour le guidage d'un piston de commande (20) qui est disposé dans un logement (15), avec des ouvertures de passage (6) pour le fluide sous pression, séparées par des nervures (8) et disposées dans le manchon de guidage (2), caractérisé en ce qu'une pièce en plastique (3) est disposée sur le côté extérieur du manchon de guidage (2), laquelle présente des nervures d'étanchéité (9) qui s'appuient du côté intérieur sur les nervures (8) du manchon de guidage (2) séparant les ouvertures de passage (6) et qui s'appliquent de manière hermétique du côté extérieur contre le côté intérieur du logement (15).
  2. Insert de guidage de fluide sous pression (1) selon la revendication 1, caractérisé en ce que l'insert de guidage de fluide sous pression (1) présente un tissu filtre intégré (5).
  3. Insert de guidage de fluide sous pression (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le manchon de guidage (2) et la pièce en plastique (3) sont connectés l'un à l'autre dans la direction longitudinale du manchon de guidage (2) par le biais d'un engagement positif.
  4. Insert de guidage de fluide sous pression (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que les ouvertures de passage (6) sont disposées dans des rainures annulaires (7) prévues sur le côté extérieur du manchon de guidage (2).
  5. Insert de guidage de fluide sous pression (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce en plastique (3) est formée par surmoulage.
  6. Insert de guidage de fluide sous pression (1) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la pièce en plastique (3) peut être fixée sur le manchon de guidage (2) au moyen d'une connexion par encliquetage.
  7. Insert de guidage de fluide sous pression (1) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la pièce en plastique (3) est fixée au moyen d'une connexion par pressage et/ou collage au manchon de guidage (2).
  8. Insert de guidage de fluide sous pression (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le manchon de guidage (2) présente d'un côté un élément de raccordement (4) avec un alésage axial pour l'alimentation en fluide sous pression et/ou pour le raccordement d'un actionneur (30).
  9. Insert de guidage de fluide sous pression (1) selon la revendication 7, caractérisé en ce que l'élément de raccordement (4) est connecté par engagement positif à la pièce en plastique (3).
  10. Insert de guidage de fluide sous pression (1) selon la revendication 7 ou 8, caractérisé en ce que l'élément de raccordement (4) et la pièce en plastique (3) sont connectés l'un à l'autre de telle sorte que le manchon de guidage (2) soit maintenu entre ces deux pièces (3, 4).
EP09704539A 2008-01-26 2009-01-24 Insert de guidage de fluide sous pression destiné à une soupape de commande dans un dispositif d'actionnment hydraulique Not-in-force EP2245277B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008006178A DE102008006178A1 (de) 2008-01-26 2008-01-26 Druckmitteleinsatz für ein Steuerventil in einer hydraulischen Stellvorrichtung
PCT/EP2009/000446 WO2009092609A1 (fr) 2008-01-26 2009-01-24 Insert de guidage de fluide sous pression destiné à une soupape de commande dans un dispositif d'actionnment hydraulique

Publications (2)

Publication Number Publication Date
EP2245277A1 EP2245277A1 (fr) 2010-11-03
EP2245277B1 true EP2245277B1 (fr) 2011-08-24

Family

ID=40584724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09704539A Not-in-force EP2245277B1 (fr) 2008-01-26 2009-01-24 Insert de guidage de fluide sous pression destiné à une soupape de commande dans un dispositif d'actionnment hydraulique

Country Status (7)

Country Link
US (1) US20100327209A1 (fr)
EP (1) EP2245277B1 (fr)
KR (1) KR101537432B1 (fr)
CN (1) CN101918682B (fr)
AT (1) ATE521792T1 (fr)
DE (1) DE102008006178A1 (fr)
WO (1) WO2009092609A1 (fr)

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DE102010007463A1 (de) * 2010-02-10 2011-09-29 Hydraulik-Ring Gmbh Cartridgeventil
DE102010039917B4 (de) 2010-08-30 2024-08-14 Robert Bosch Gmbh Druckregelventil mit axialem Versorgungsanschluss
DE102011007745A1 (de) * 2011-04-20 2012-10-25 Mahle International Gmbh Dichtungsanordnung
KR101228868B1 (ko) * 2012-10-08 2013-02-05 주식회사 상아정공 엔진오일 컨트롤 밸브의 필터 독립형 슬리브
DE102012110570A1 (de) 2012-11-05 2014-05-08 Hilite Germany Gmbh Buchse für ein hydraulisches Kolbenventil, hydraulisches Kolbenventil und Nockenwellenversteller
DE102015200543B4 (de) * 2015-01-15 2020-11-05 Schaeffler Technologies AG & Co. KG Steuerventil mit Ablaufkanal und Verbrennungsmotor
DE102019133669A1 (de) * 2019-12-10 2021-06-10 Schaeffler Technologies AG & Co. KG Vorrichtung mit einem Bauteil und einem Ventilgehäuse
CN112983918B (zh) * 2021-03-31 2021-12-07 同济大学 一种双向快速作动的大流量液压动力机构

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JP4222205B2 (ja) * 2003-12-25 2009-02-12 株式会社デンソー 電磁スプール弁
DE502005010369D1 (de) * 2004-05-14 2010-11-25 Schaeffler Kg Nockenwellenversteller
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JP4150728B2 (ja) * 2005-01-18 2008-09-17 トヨタ自動車株式会社 スリーブ及びシリンダヘッドカバー
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DE102006031595A1 (de) * 2006-07-08 2008-02-21 Schaeffler Kg Hydraulisches Spannsystem

Also Published As

Publication number Publication date
ATE521792T1 (de) 2011-09-15
CN101918682A (zh) 2010-12-15
US20100327209A1 (en) 2010-12-30
DE102008006178A1 (de) 2009-07-30
CN101918682B (zh) 2012-12-12
KR20100102679A (ko) 2010-09-24
EP2245277A1 (fr) 2010-11-03
KR101537432B1 (ko) 2015-07-16
WO2009092609A1 (fr) 2009-07-30

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