EP1751404B1 - Dispositif d'actionnement de soupapes - Google Patents

Dispositif d'actionnement de soupapes Download PDF

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Publication number
EP1751404B1
EP1751404B1 EP05762751A EP05762751A EP1751404B1 EP 1751404 B1 EP1751404 B1 EP 1751404B1 EP 05762751 A EP05762751 A EP 05762751A EP 05762751 A EP05762751 A EP 05762751A EP 1751404 B1 EP1751404 B1 EP 1751404B1
Authority
EP
European Patent Office
Prior art keywords
control member
housing
meshing
valve
sleeve
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
EP05762751A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1751404A1 (fr
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 EP1751404A1 publication Critical patent/EP1751404A1/fr
Application granted granted Critical
Publication of EP1751404B1 publication Critical patent/EP1751404B1/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
    • 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
    • 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
    • F01L1/462—Valve return spring arrangements
    • 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 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 linked in translation with the valve, the abutment 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, the housing having an orifice located between the adjustable stops of the two valves of the same pair and intended to accommodate the control member adapted to selectively cooperate with the two adjustable stops of the two adjacent valves.
  • 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 comprises positioning means intended to cooperate with each other. with complementary positioning means formed on the housing, so as to make it possible, on the one hand, to locate two stable positions respectively corresponding to the meshing positions with the two adjustable stops of the two valves and, on the other hand, to immobilize the organ in said positions.
  • 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 6 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 are not activated, the valve 1 and the pallet 3 are arranged in the equilibrium position between the open and closed positions.
  • Figures 2 and 3 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 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 sleeve rotation 26 thus causes the displacement of the threaded ring 36 towards said bushing 26.
  • the direction of movement of the threaded ring 36 along the bushing 26 is determined by the direction of rotation of the bushing 26. socket 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 preferably oblong control member.
  • the housing 2 comprises an orifice 11 located between the adjustable stops 16 of the two valves 1 of the same pair of valves and intended to accommodate the 8,10 control member.
  • the orifice 11 is preferably oblong and substantially perpendicular to the axes of rotation of the adjustable stops 16. That is to say that the orifice 11 has a longitudinal axis substantially perpendicular to the movable rods 14 of the actuating mechanism of the valves 1 adjacent.
  • control member comprises a sleeve 10 and an actuating screw 8 housed in the sleeve 10.
  • the threaded end of the actuating screw 8 projects out of the sleeve 10, so as to allow it to meshing with the thread of the bushing 26 (see FIGS. 3, 5, 7 and 8).
  • the sleeve 10 has transverse dimensions unsymmetrical with respect to its longitudinal axis.
  • the screw 8 is eccentrically disposed in the sleeve 10 relative to the median longitudinal axis of the sleeve 10 (see Figures 5, 7 and 8).
  • the sleeve 10 has in its thickness means 18 for locking in translation of the screw 8 relative to the sleeve 10.
  • These locking means may comprise, for example, for example, a pin 18 cooperating with an annular groove 118 formed on the body of the screw and allowing rotation of the screw 8 with respect to the sleeve 10 (see FIG.
  • control member screw 8 and sleeve 10
  • orifice 11 have conjugate transverse dimensions prohibiting the lateral displacement of the control member 8, 10 inside the orifice 11 (see FIG. .
  • control member 8, 10 can not move laterally inside the orifice 11 between the two meshing positions respectively corresponding to the meshing positions of the screw 8 with the two adjacent adjustable stops 16.
  • the sleeve 10 and the orifice 11 have conjugate dimensions adapted to allow on the one hand the withdrawal the control member 8, 10 out of the orifice in a direction parallel to the longitudinal axis of the orifice 11.
  • the control member 8, 10 can be removed from the orifice 11, then rotated 90 degrees about its longitudinal axis and finally reintroduced in the second position of meshing.
  • control member 8, 10 comprises positioning means 12 intended to cooperate with complementary positioning means 13 formed on the casing 2, so as to make it possible, on the one hand, to identify two positions of meshing, and secondly, to immobilize the member 8, 10 in said positions.
  • the positioning means 12 comprise an axis 12 such as a screw mounted on the sleeve 10 and two positioning orifices 13, for example tapped, formed on the housing 2 and designed to selectively receive the axis 12.
  • the positioning axis 12 is parallel to the longitudinal axis of the screw.
  • the two positioning orifices 13 are parallel to the longitudinal axis of the oblong orifice 11.
  • FIGS. 7 and 8 illustrate the perfect positioning according to the invention of the threading of the screw 8 against the thread of the sleeve 26 when the control member 8, 10 is disposed in the orifice 11.
  • the orifice 11 also has a depth preferably substantially equal to the length of the control member 8, 10.
  • the flush end of the control member 8, 10 may thus comprise coupling means 25, such as an imprint, intended to cooperate with an additional adjustment member 9 such as a key for example (see Figure 2 and 8).
  • the device according to the invention allows adjustment of the valve springs easier than in the prior art.

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)
  • Multiple-Way Valves (AREA)
  • Fluid-Driven Valves (AREA)
EP05762751A 2004-05-19 2005-05-19 Dispositif d'actionnement de soupapes Not-in-force EP1751404B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0451000A FR2870564B1 (fr) 2004-05-19 2004-05-19 Dispositif d'actionnement de soupapes
PCT/FR2005/050346 WO2005113946A1 (fr) 2004-05-19 2005-05-19 Dispositif d'actionnement de soupapes

Publications (2)

Publication Number Publication Date
EP1751404A1 EP1751404A1 (fr) 2007-02-14
EP1751404B1 true EP1751404B1 (fr) 2007-08-29

Family

ID=34946008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05762751A Not-in-force EP1751404B1 (fr) 2004-05-19 2005-05-19 Dispositif d'actionnement de soupapes

Country Status (8)

Country Link
US (1) US7654235B2 (es)
EP (1) EP1751404B1 (es)
JP (1) JP4719741B2 (es)
AT (1) ATE371805T1 (es)
DE (1) DE602005002270T2 (es)
ES (1) ES2289715T3 (es)
FR (1) FR2870564B1 (es)
WO (1) WO2005113946A1 (es)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2566247B2 (ja) * 1987-08-13 1996-12-25 松下電工株式会社 整髪具
JPS6446407U (es) * 1987-09-16 1989-03-22
JPH02267305A (ja) * 1989-04-10 1990-11-01 Fuji Valve Co Ltd 内燃機関の動弁機構におけるバルブアジャスタ
JPH05187211A (ja) * 1992-01-13 1993-07-27 Chuo Spring Co Ltd エンジンの動弁装置における弁ばねの組付高さ調整装置
JP3623863B2 (ja) * 1996-09-13 2005-02-23 株式会社日立製作所 電磁バルブ装置及びその駆動装置及び内燃機関
WO1998042958A1 (de) * 1997-03-24 1998-10-01 Lsp Innovative Automotive Systems Gmbh Elektromagnetische stellvorrichtung
JP2000154736A (ja) * 1998-11-17 2000-06-06 Hitachi Ltd 動弁装置および内燃機関
FR2792679B1 (fr) * 1999-04-23 2001-07-27 Sagem Dispositif reglable de commande de soupapes et procede de reglage d'un tel dispositif
JP3694804B2 (ja) * 1999-07-28 2005-09-14 株式会社日立製作所 内燃機関
JP2002030911A (ja) * 2000-07-14 2002-01-31 Riken Corp 内燃機関用動弁装置
FR2820520B1 (fr) * 2001-02-02 2003-05-16 Sagem Dispositif d'arret en rotation d'une roue dentee
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
DE10248328A1 (de) * 2002-10-17 2004-04-29 Bayerische Motoren Werke Ag Elektromagnetische Ventiltriebvorrichtung mit verdrehgesicherter Neutrallagenverstellschraube

Also Published As

Publication number Publication date
DE602005002270D1 (de) 2007-10-11
FR2870564A1 (fr) 2005-11-25
DE602005002270T2 (de) 2008-05-29
ES2289715T3 (es) 2008-02-01
JP4719741B2 (ja) 2011-07-06
EP1751404A1 (fr) 2007-02-14
US20080029049A1 (en) 2008-02-07
ATE371805T1 (de) 2007-09-15
WO2005113946A1 (fr) 2005-12-01
JP2007538196A (ja) 2007-12-27
FR2870564B1 (fr) 2006-06-30
US7654235B2 (en) 2010-02-02

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