EP1751403B1 - Ventiltriebvorrichtung - Google Patents

Ventiltriebvorrichtung Download PDF

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Publication number
EP1751403B1
EP1751403B1 EP05762748A EP05762748A EP1751403B1 EP 1751403 B1 EP1751403 B1 EP 1751403B1 EP 05762748 A EP05762748 A EP 05762748A EP 05762748 A EP05762748 A EP 05762748A EP 1751403 B1 EP1751403 B1 EP 1751403B1
Authority
EP
European Patent Office
Prior art keywords
control member
valve
casing
valves
meshing
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
EP05762748A
Other languages
English (en)
French (fr)
Other versions
EP1751403A1 (de
Inventor
Didier Girard
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP1751403A1 publication Critical patent/EP1751403A1/de
Application granted granted Critical
Publication of EP1751403B1 publication Critical patent/EP1751403B1/de
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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/10—Connecting springs to valve members
    • 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
    • F01L2009/2132—Biasing means
    • F01L2009/2134—Helical springs
    • F01L2009/2136—Two opposed springs for intermediate resting position of the armature
    • 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
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • F01L2303/01—Tools for producing, mounting or adjusting, e.g. some part of the distribution

Definitions

  • the invention relates to a device for actuating valves.
  • the invention relates more particularly to a device for actuating at least one pair of internal combustion engine valves arranged in a housing of the type comprising, for each valve, magnetization means, at least one spring urging the valve towards a position of equilibrium and comprising a fixed end made integral with an adjustable stop and a movable end made integral in translation with the valve, the adjustable stop comprising meshing means able to cooperate with meshing means conjugated with a control member to allow movement of the stop relative to the housing, so as to adjust the spring tare.
  • Such a device is described in the document WO0065203A1 .
  • the device described in this document uses a tool inserted between two adjacent valve actuators.
  • the tool consists of a rod provided at its end with a portion of disk whose edge presents a toothed sector.
  • the tooth sector of the tool is intended to mesh with a toothed wheel whose rotation controls the movement of a movable element secured to one end of a spring.
  • the tool must be introduced with a certain orientation in the device, to allow the toothed sector to enter the device.
  • the tool is then moved laterally towards the toothed wheel of the moving assembly associated with a spring.
  • the toothed sector must then be brought blindly into a meshing position with the toothed wheel. In this difficult position to reach, the toothed sector can be rotated to perform the adjustment of the spring tare.
  • the tool having adjusted a first spring must be moved laterally to mesh with the adjacent gear according to the same procedure.
  • valve control device therefore generates complex adjustment operations that are difficult to match with large-scale industrial production.
  • complexity of the operations required to adjust the tare of the springs is likely to cause adjustment errors.
  • An object of the present invention is to overcome all or part of the disadvantages of the prior art noted above.
  • the actuating device is essentially characterized in that the control member is permanently placed in the housing of adjacent to the adjustable stops of the two valves of the same pair, the housing comprising means for guiding and positioning the control member selectively in two meshing positions respectively with the two adjustable stops.
  • FIG. 1 illustrates an example of an actuator of such a valve called “electromagnetic valve”.
  • the actuator conventionally comprises a movable portion consisting of a rod 14 whose one end is secured to a pallet 3 disposed between two electromagnets 4, 5 (see also Figure 4). The other end of the movable rod 14 bears on the end of the stem of the valve 1
  • Two upper and lower springs 7 and 6 are counter-mounted on the rod / valve assembly 14, 1 so as to bias this assembly towards an equilibrium position (position shown in FIG. 1).
  • Each of the springs 6, 7 comprises a fixed end made integral with a fixed abutment and a movable end made integral in translation directly or indirectly with the valve and / or the movable rod 14.
  • the pallet 3 is subjected to the action of the electromagnets 4, 5, so as to move and lock the valve 1 in the open or closed position.
  • the pallet 3 and the valve 1 can be balanced by the springs 6, 7 between the two open and closed positions.
  • the tare of the springs 5, 6 must be adjusted so that when the electromagnets 4, 5 are not activated, the valve 1 and the pallet 3 are arranged in the equilibrium position between the open and closed positions.
  • the soup control mechanism 1 is generally integrated in a housing 2 called "actuator" which is mounted directly or indirectly on the cylinder head 19 of an internal combustion engine.
  • Figures 3 and 4 shows a part of the mechanism of Figure 1.
  • the elements identical to those described above are designated by the same reference numerals and will not be described in detail a second time.
  • the upper spring 6 of the mechanism has a first moving lower end which is secured to the movable rod 14 by means of a lower cup 20 and a conical hooking device 21.
  • the upper end spring 6 is made integral with a bearing washer 46 comprising, for example, three rings (see Figure 5).
  • the bearing washer 46 is itself mounted on a threaded ring 36 screwed onto the external thread of a cylindrical sleeve 26.
  • the sleeve 26 is mounted free to rotate and locked in translation relative to the housing 2. More specifically, the sleeve 26 has at its upper end a flange bearing against the body of the actuator (electromagnet 5 for example) by the intermediate of a bearing washer 22. A toothing is formed on the outer edge of the flange of the sleeve 26 (see Figure 5 in particular).
  • the threaded ring 36 is locked in rotation with respect to the housing 2.
  • the threaded ring 36 has shoulders 23 which engage in housings in the body of the casing 2 and prevent rotation of the casing. the ring 36 around its axis.
  • the bushing rotation 26 causes the tapped ring 36 to move towards said bushing 26.
  • the direction of movement of the tapped bushing 36 along the sleeve 26 is determined by the direction of rotation of the sleeve 26.
  • the assembly consisting of the sleeve 26, the threaded ring 36 and the bearing washer 46 form a stop 16 adjustable for the upper end of the spring 6 as described in more detail below.
  • the toothing of the bushing 26 is intended to cooperate with a complementary thread of a control member 10 of oblong shape preferably.
  • the housing 2 comprises a housing 11 for the member 10 located near the adjustable stops 16 of the two valves 1 of the same pair of valves.
  • the control member 10 comprises, for example, a rod-shaped body and a toothed wheel 8 formed at one end of the body.
  • the control member 10 is preferably placed permanently in the housing 2.
  • the housing 11 of the housing 2 is shaped to guide the control member 10, so as to enable it to be moved selectively in two meshing positions respectively with the two adjustable stops 16.
  • the abutments 16 and the control member 10 cooperate in meshing during their respective rotation.
  • the respective axes of rotation of the abutment 16 and the control member 10 are substantially parallel.
  • the control member 10 is slidably mounted in the housing 2 in the direction of the longitudinal axis of symmetry of its body. In addition, this direction of sliding of the control member 10 is preferably parallel to the directions of movement of the mobile rods 14 resting on the valves 1.
  • the housing 11 for the control member 10 opens on one side of the housing 2 so as to allow the end of the member 10 located opposite the gear 8 to flush outwardly of the housing 2
  • This flush end of the control member 10 has coupling means 25, such as a fingerprint or a suitable shape for coupling with an external adjusting member (not shown).
  • the adjustment member may be, for example, a socket or a key manipulated manually by an operator or by a robot.
  • the two adjustable stops 16 of the pair of valves 1 are respectively located in two distinct planes offset in a main direction of movement of the control member 10 (see Figure 4).
  • the gears of the two adjustable stops 16 may be located in distinct planes that are slightly offset in the direction of movement of the control member.
  • a small shift of the gears as described above makes it possible to arrange the control member 10 in a third so-called deactivated position in which the control member 10 meshes at the same time with the two adjustable stops 16 of a pair of valves 1 In this configuration the rotation of the stops 16 and the member 10 is "self-locking".
  • Means 15, 17 for locking the control member 10 in the deactivated position may be provided. As illustrated in FIGS. 6 and 9 in particular, these locking means may comprise a set screw 15 mounted in a tapping of the casing 2 and whose end is able to engage in a conjugate groove 17 formed on the body of the casing. control member 10.
  • Elastic means such as a spring 24 may also be mounted on the control member 10 so as to bias the latter towards one of the meshing positions.
  • the spring 24 is threaded onto the body of the control member 10 and has one end bearing on a circlip 27 mounted on the same body of the member 10. The other end of the spring 24 can come to bear on a shoulder formed by the housing 11 for the member 10 inside the housing 2.
  • the actuator 2 can be arranged so that the control member 10 is locked in its deactivated position. That is to say that the body of the control member is blocked by the set screw 15 so that the toothed wheel 8 of the control member 10 meshes with the two adjustable stops at the same time (position shown in FIG. Figure 8).
  • the device can be dimensioned so that the spring 24 places the member 10 in a high equilibrium position in which the toothed wheel 8 meshes only with the toothing of the bushing 26 of the adjustable stop 16 of the first spring 6 ( position shown in Figure 10).
  • control member 10 can then be pivoted by means of a control member as described above, so as to adjust the tare of the spring 6 concerned.
  • the adjusting member can be coupled to the control member by exerting on the latter a pressure towards 2.
  • the control member 10 is thus translated downwards in the housing 2 to a low position in which the toothed wheel 8 meshes this time only with the thread of the bushing 26 of the stop adjustable 16 of the second spring (position not shown in the figures for the sake of concision)
  • the housing 2 can form a stop for the control member 10 limiting its movement towards the inside of the housing 2, at this low position.
  • the set needle screw 15 can again be tightened to ensure a stable adjustment of the springs 6.
  • the system can be dimensioned so that, from the high equilibrium position, the tightening the needle screw causes the automatic translation of the control member 10 to the deactivated position.
  • the locking screw 15 can cooperate with inclined planes formed by the groove 17 of the body of the control member 10
  • control device allows, in a reduced volume to guarantee a simple and reliable adjustable valve springs.
  • the invention is of course not limited to the embodiment described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Magnetically Actuated Valves (AREA)
  • Lift Valve (AREA)
  • Multiple-Way Valves (AREA)
  • Fluid-Driven Valves (AREA)

Claims (15)

  1. Vorrichtung zur Betätigung mindestens eines Paars von Ventilen (1) eines Verbrennungsmotors, die in einem Gehäuse (2) angeordnet ist, von dem Typ, der für jedes Ventil (1) Magnetisierungsmittel (4, 5) aufweist, wobei mindestens eine Feder (6) das Ventil (1) in eine Gleichgewichtsstellung beaufschlagt und ein festes Ende, das fest mit einem einstellbaren Anschlag (16) verbunden ist, und ein bewegliches Ende aufweist, das mit dem Ventil (1) in Translation fest verbunden ist, wobei der einstellbare Anschlag (16) Eingriffsmittel (26) aufweist, die in der Lage sind, mit zugeordneten Eingriffsmitteln (8) eines Steuerorgans (10) zusammenzuwirken, um die Verschiebung des Anschlags (16) bezüglich des Gehäuses (2) zu ermöglichen, damit die Tarierung der Feder (6) eingestellt wird, dadurch gekennzeichnet, dass das Steuerorgan (10) auf Dauer im Gehäuse (2) neben den einstellbaren Anschlägen (16) der zwei Ventile (1) eines gleichen Paars angeordnet ist, wobei das Gehäuse (2) Mittel zur selektiven Führung und Positionierung des Steuerorgans (10) in zwei Eingriffsstellungen mit den zwei einstellbaren Anschlägen (16) aufweist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die zwei einstellbaren Anschläge (16) eines Paars von Ventilen (1) sich in unterschiedlichen Ebenen befinden, die gemäß einer Hauptverschiebungsrichtung des Steuerorgans (10) versetzt sind.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sie Mittel (15, 17) zur Blockierung des Steuerorgans (10) in einer deaktivierten Stellung aufweist, die die Verschiebung eines einstellbaren Anschlags (16) verhindert.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die deaktivierte Stellung einem gleichzeitigen Eingriff des Steuerorgans (10) mit den zwei einstellbaren Anschlägen (16) eines Paars von Ventilen (1) entspricht.
  5. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass die Blockiermittel des Organs (10) eine im Gehäuse (2) bewegliche Achse (15) aufweisen, die mit dem Körper (17) des Steuerorgans (10) zusammenwirken kann.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Steuerorgan (10) gleitend im Gehäuse (2) montiert ist.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Gleitrichtung des Steuerorgans (10) im Wesentlichen parallel zu den Verschiebungsrichtungen der Ventile (1) ist.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Anschlag (16) und das Steuerorgan (10) bei ihrer jeweiligen Drehung in Eingriff zusammenwirken, und dass, wenn das Steuerorgan (10) in einer Eingriffsstellung ist, die Drehachsen des Anschlags (16) bzw. des Steuerorgans (10) im Wesentlichen parallel sind.
  9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Anschlag (16) einen Ring (36) mit Innengewinde aufweist, der auf das Außengewinde einer Hülse (26) montiert ist, die mit Eingriffsmitteln versehen ist, wobei die Hülse (26) frei drehend und in Translationsrichtung bezüglich des Gehäuses (2) blockiert montiert ist, und dass der Ring (36) mit Innengewinde bezüglich des Gehäuses (2) in Drehung blockiert ist, damit die Drehung der Hülse (26) die Verschiebung des Rings (36) mit Innengewinde entlang der Hülse (26) bewirkt.
  10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Hülse (26) die allgemeine Form eines zylindrischen Rohrs hat, von dem ein Ende einen Kragen aufweist, und dass die Eingriffsmittel auf dem Kragen ausgebildet sind.
  11. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Führungs- und Positionierungsmittel elastische Mittel (24) aufweisen, die das Steuerorgan (10) in eine der Eingriffsstellungen beaufschlagen.
  12. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Steuerorgan (10) einen Körper in Form einer Stange und ein Zahnrad (8) aufweist, das in Höhe eines der Enden des Körpers geformt ist.
  13. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Steuerorgan (10) ein Ende hat, das im Wesentlichen in Höhe einer Seite des Gehäuses (2) bündig anliegt und Mittel (14) zur Kopplung mit einem Einstellorgan aufweist.
  14. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie für jedes Ventil (1) eine Platte (3) aufweist, die in Translation fest mit der Stange des Ventils (1) verbunden ist, wobei die Platte (3) zwischen zwei Magnetisierungsmitteln (4, 5) angeordnet ist, und zwei gegenwirkende Federn die Einheit aus Ventil und Platte (1, 3) in eine Gleichgewichtsstellung beaufschlagen.
  15. Verbrennungsmotor, der mit mindestens einem Paar von Ventilen ausgestattet ist, dadurch gekennzeichnet, dass er eine Betätigungsvorrichtung nach einem der vorhergehenden Ansprüche aufweist.
EP05762748A 2004-05-19 2005-05-19 Ventiltriebvorrichtung Not-in-force EP1751403B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0450999A FR2870563B1 (fr) 2004-05-19 2004-05-19 Dispositif d'actionnement de soupapes
PCT/FR2005/050345 WO2005112543A1 (fr) 2004-05-19 2005-05-19 Dispositif d'actionnement de soupapes

Publications (2)

Publication Number Publication Date
EP1751403A1 EP1751403A1 (de) 2007-02-14
EP1751403B1 true EP1751403B1 (de) 2007-11-07

Family

ID=34945057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05762748A Not-in-force EP1751403B1 (de) 2004-05-19 2005-05-19 Ventiltriebvorrichtung

Country Status (8)

Country Link
US (1) US7540265B2 (de)
EP (1) EP1751403B1 (de)
JP (1) JP4879171B2 (de)
AT (1) ATE377697T1 (de)
DE (1) DE602005003222T2 (de)
ES (1) ES2296208T3 (de)
FR (1) FR2870563B1 (de)
WO (1) WO2005112543A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9090315B1 (en) 2010-11-23 2015-07-28 Piedra—Sombra Corporation, Inc. Optical energy transfer and conversion system
US9873495B2 (en) 2014-12-19 2018-01-23 Stone Aerospace, Inc. System and method for automated rendezvous, docking and capture of autonomous underwater vehicles
US10081446B2 (en) 2015-03-11 2018-09-25 William C. Stone System for emergency crew return and down-mass from orbit
US10598404B2 (en) 2016-06-29 2020-03-24 Research Products Corporation Damper with adjustable resistance to blade motion
US11493233B2 (en) 2016-09-26 2022-11-08 Stone Aerospace, Inc. Direct high voltage water heater

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714998B1 (fr) * 1994-01-07 1996-02-09 Peugeot Procédé de commande d'un actionneur électromagnétique bistable et dispositif pour sa mise en Óoeuvre.
DE19506566A1 (de) * 1995-02-24 1996-08-29 Bayerische Motoren Werke Ag Elektromagnetische Hubventil-Betätigungsvorrichtung
DE19631909A1 (de) * 1995-08-08 1997-02-13 Fev Motorentech Gmbh & Co Kg Verfahren zur Justierung der Ruhelage des Ankers an einem elektromganetischen Aktuator
FR2792031B1 (fr) * 1999-04-09 2001-06-08 Sagem Dispositif de commande electromagnetique de soupapes
FR2792679B1 (fr) * 1999-04-23 2001-07-27 Sagem Dispositif reglable de commande de soupapes et procede de reglage d'un tel dispositif
DE10218737A1 (de) * 2002-04-26 2003-12-11 Bayerische Motoren Werke Ag Vorrichtung zum Justieren eines in einem Zylinderkopf einer Brennkraftmaschine angeordneten Hubaktuators für ein Gaswechselventil
US6997146B2 (en) * 2002-05-22 2006-02-14 Toyota Jidosha Kabushiki Kaisha Start control method and apparatus for solenoid-operated valves of internal combustion engine

Also Published As

Publication number Publication date
FR2870563B1 (fr) 2006-06-30
ATE377697T1 (de) 2007-11-15
US20080163834A1 (en) 2008-07-10
EP1751403A1 (de) 2007-02-14
FR2870563A1 (fr) 2005-11-25
DE602005003222D1 (de) 2007-12-20
JP2007538195A (ja) 2007-12-27
US7540265B2 (en) 2009-06-02
DE602005003222T2 (de) 2008-08-28
WO2005112543A1 (fr) 2005-12-01
JP4879171B2 (ja) 2012-02-22
ES2296208T3 (es) 2008-04-16

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