EP1492943B1 - Dispositif pour modifier la distribution des soupapes d'echange gazeux d'un moteur a combustion interne, notamment dispositif de reglage hydraulique d'angle de rotation d'un arbre a cames relativement a un vilebrequin - Google Patents

Dispositif pour modifier la distribution des soupapes d'echange gazeux d'un moteur a combustion interne, notamment dispositif de reglage hydraulique d'angle de rotation d'un arbre a cames relativement a un vilebrequin Download PDF

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Publication number
EP1492943B1
EP1492943B1 EP03745762A EP03745762A EP1492943B1 EP 1492943 B1 EP1492943 B1 EP 1492943B1 EP 03745762 A EP03745762 A EP 03745762A EP 03745762 A EP03745762 A EP 03745762A EP 1492943 B1 EP1492943 B1 EP 1492943B1
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EP
European Patent Office
Prior art keywords
drive unit
housing
internal combustion
combustion engine
output unit
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.)
Expired - Lifetime
Application number
EP03745762A
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German (de)
English (en)
Other versions
EP1492943A1 (fr
Inventor
Thomas Bertelshofer
Gerd Wiessner
Jürgen Schwab
Thomas Kleiber
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.)
IHO Holding GmbH and Co KG
Original Assignee
INA Schaeffler 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 INA Schaeffler KG filed Critical INA Schaeffler KG
Publication of EP1492943A1 publication Critical patent/EP1492943A1/fr
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Publication of EP1492943B1 publication Critical patent/EP1492943B1/fr
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Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34483—Phaser return springs
    • 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
    • F01L2810/00—Arrangements solving specific problems in relation with valve gears
    • F01L2810/03—Reducing vibration

Definitions

  • the invention relates to a device for changing the timing of Gas exchange valves of an internal combustion engine according to the preamble forming Features of claim 1, and it is particularly advantageous to a device to the hydraulic angle adjustment of a camshaft opposite a crankshaft feasible.
  • From DE 100 07 200 A1 is a generic device for changing the timing of gas exchange valves of an internal combustion engine known the at the drive end of a cylinder head of the engine mounted camshaft and arranged as a function of different Operating parameters of the engine controllable hydraulic Actuator is formed.
  • This device consists essentially of one in driving connection with the crankshaft and two axially Side covers limited drive unit and a rotatably with the Camshaft connected and used in the drive unit output unit, the alternately formed over at least two within the device or simultaneously acted upon by a hydraulic pressure medium Pressure chambers are in power transmission connection.
  • the drive unit is in this device in concrete execution by a with an outer Tooth formed hollow cylindrical drive wheel formed in which through several radial partitions several hydraulic work spaces arise.
  • an impeller provided with a plurality of radially from the Wheel hub is formed away extending wings, which occupy the work spaces the drive unit in each case two of said hydraulic pressure chambers divide.
  • pressurizing these pressure chambers is thus under permanent compensation of external pressure medium leakage a relative rotation or a hydraulic clamping of the output unit relative to the drive unit the device and thus the camshaft relative to the crankshaft the internal combustion engine.
  • this device for alignment their adjustment speeds in both adjustment directions and to achieve a preferred for the start of the internal combustion engine position of the output unit to the drive unit on a spring means, which as outside the Device in front of one of the side cover of the drive unit arranged coil spring trained and with one end to the drive unit and with the other end is attached to the output unit.
  • the invention is therefore based on the object, a device for changing the timing of gas exchange valves of an internal combustion engine, in particular device for hydraulic rotational angle adjustment of a camshaft over a crankshaft, to design, in the absence of any adverse effects the function of the device and without alterations of the Installation space of the device with simple means one of the vibrations of the Internal combustion engine excited swinging of the coil spring in their resonance frequencies and thus avoided a vibration breakage of the coil spring becomes.
  • the additional housing is preferably made of a cup-shaped Housing cover, incorporated in the bottom of a coaxial circuit breaker is and which forms the outer boundary walls of the annulus, as well from a sleeve-shaped housing hub, which in the circular opening in Housing cover is inserted and the inner boundary wall of the annulus forms.
  • the two-part design of the additional housing has become doing particularly advantageous in terms of cost-effective production of Housing parts as punched drawing parts and with regard to the attachment of the ends the coil spring on the one hand on the drive unit and on the other hand on the output unit proved. It is also conceivable, however, a more than two-part training of the housing and its production in non-cutting or spannierender Production.
  • the cup-shaped housing cover of the invention it is proposed that to form this with a peripheral wall, which is approximately the Outer diameter of the adjacent side cover of the drive unit corresponding Inner diameter and has an extended edge portion, with which the housing cover on the side cover of the drive unit can be locked.
  • the peripheral wall is preferably perpendicular to the bottom of the housing cover Angled and has by the extended edge portion a height, over the width of the arranged in the annular space of the housing coil spring goes slightly beyond.
  • the housing cover in a further embodiment of the invention has a circumferential Stage in its peripheral wall, the front side of the side cover of the Drive unit is applied and thus on the one hand an axial stop for the housing cover to avoid axial jamming of the housing arranged spiral spring forms and on the other hand, the housing cover to Side cover of the drive unit centered.
  • the housing cover to Side cover of the drive unit centered.
  • the necessary space for the locking lugs can either by a circumferential Grooving in the adjacent edge part of the lateral surface of the drive unit or by a slightly larger diameter than the drive unit trained side cover of the drive unit can be created.
  • it is also possible in the edge part of the lateral surface To incorporate the drive unit only local recesses, in the same Distance as the locking lugs on the housing cover are arranged to each other and at least have their width, so that the housing cover in addition is also secured against rotation in the circumferential direction.
  • the sleeve-shaped housing hub of the device according to the invention has a cylinder wall an approximately the inner diameter of the circular breakthrough in the housing cover corresponding outer diameter, which is used to lock the housing hub on the output unit on its front side with an inwardly directed Bending is formed.
  • This will be on the housing hub formed annular base through which inserted into the housing hub Central screw can be passed, with the housing hub bolted together with the output unit of the device to the camshaft becomes.
  • the housing hub is designed such that that with their other front side slightly out of the circle breakthrough protruding in the housing cover and this by an outwardly directed Bending of its edge part closes.
  • the housing hub through their attachment to the output unit represents a camshaft-fixed component
  • the device necessary components are used, for example by Connection to a pulser of a device for detection the camshaft position relative to the crankshaft position od.
  • the cylinder wall partially as a hollow square is formed, on which the complementarily formed inner End of the coil spring is positively secured.
  • the housing hub disposed within the annular space of the housing part of the cylinder wall the housing hub and means that the inner end of the coil spring is preferred is formed so that it is at least three sides of the Hohlvierkantes the Housing hub encloses and thus the coil spring by positive locking rotation on the housing hub and on this in turn to the output unit of the Locked device.
  • the diameter of the hollow cylindrical part of the housing hub and the side length of the Hohlvierkantes the housing hub are here preferably formed identically and correspond approximately to the diameter of the Screw head of the central screw, with the housing hub and the output unit are bolted to the camshaft.
  • the Possibility of the diameter of the housing hub and the side length of the Hohlvierkantes form with different dimensions or the housing hub to be provided with another polygonal hollow profile cross section at the inner end of the coil spring then for positive fastening is complementarily adapted on the housing hub.
  • the housing hub over its entire length hollow cylindrical form and trained in this case without additional deformations inner end of the coil spring by a rivet or screw od.
  • the outer end of the coil spring in a further embodiment of the Inventively designed device preferably bent hook-shaped trained and at an axially projecting suspension point on the Drive unit of the device positively secured.
  • this suspension point for the outer end of the Spiral spring by an already arranged on the drive unit of the device Component, such as in Rotationskolbenverstellern by a extended fixing screw to form the side cover of the drive unit
  • the spring attachment suspension points can be arranged on the drive unit.
  • the outer end of the coil spring without additional deformations form and od by a rivet or screw.
  • non-positively attached to the drive unit of the device Like. non-positively attached to the drive unit of the device.
  • the pressure medium leaks are then in known manner again from the housing in the cylinder head of the engine derived, where it is alternatively possible, the feeder and / or the discharge of pressure medium leaks in and out of the housing to be realized via dedicated inflows and / or outflows.
  • the inventively designed device for changing the timing of gas exchange valves of an internal combustion engine in particular device to the hydraulic angle adjustment of a camshaft opposite a crankshaft, thus facing those known from the prior art Devices have the advantage of being outside the device one of the side cover arranged on the drive unit coil spring Encapsulation by means of an additional housing, which with the already existing Pressure medium leaks of the device can be filled, not now more freely arranged but on all sides of the hydraulic pressure medium of the Device is enclosed and thus in their vibration of the internal combustion engine excited resonant vibrations hydraulic damped becomes.
  • the vibration amplitudes are reliably kept so low that no voltage peaks in the spring coils more occur and avoided in any case a vibration fracture of the coil spring becomes.
  • damping has proven to be durable and additionally has the advantage that the function of the device is not affected and that the additional housing no changes requires the existing space for the device.
  • FIG. 1 and 2 is clearly a device 1 for changing the Control times of gas exchange valves of an internal combustion engine forth, the exemplified as a vane-adjusting device for hydraulic rotation angle adjustment a camshaft relative to a crankshaft and formed in Dependence of various operating parameters of the internal combustion engine controllable is.
  • This device 1 is at the drive-side end of a cylinder head the internal combustion engine mounted, not shown in the drawings
  • Camshaft attached attached and essentially consists of one with a also not shown crankshaft in drive connection standing drive unit 4 and from a non-rotatably connected to the camshaft output unit 5th
  • the drive unit 4 by one of two side covers 2, 3 axially limited and formed with an external toothing Drive wheel is formed, in which by unspecified several Partitions several hydraulic work spaces arise.
  • the output unit 5 of the device clearly visible by a in the drive unit 4 usable impeller formed, which with several radially extending from the wheel hub, also unspecified Wings is formed. These wings divide the working spaces in the Drive unit 4 in two oppositely acting hydraulic pressure chambers 6, 7, via which the drive unit 4 and the output unit 5 of the Device 1 by alternating or simultaneous pressurization with a hydraulic pressure medium together in power transmission connection stand.
  • the pressurization of the pressure chambers 6, 7 thus causes a Relative rotation or hydraulic clamping of the output unit. 5 relative to the drive unit 4 or the camshaft with respect to the crankshaft, wherein between the drive unit 4 and the output unit 5 design-related Pressure medium leaks arise from the device. 1 be removed and constantly balanced.
  • the device 1 for the adjustment of their adjustment speeds in both Verstellraumen and to reach one for the start of Internal combustion engine prefer position of the output unit 5 against on the camshaft alternating moments acting spring means, which in Figure 1 clearly visible as outside the device 1 in front of the side cover 2 of the drive unit 4 arranged and with one end 9 on the drive unit 4 and attached to the other end 10 of the output unit 5 Spiral spring 8 is formed.
  • the cup-shaped housing cover 14 in this case has one in Figure 2 with the reference numeral 18 numbered peripheral wall at right angles to the bottom 15 is angled and approximately the outer diameter of the adjacent Side cover 2 of the drive unit 4 corresponding inner diameter having. Over an extended edge portion 19 of this peripheral wall 18 is the housing cover 14 can then be locked on the side cover 2 of the drive unit 4, by having a diameter-reduced circumferential step 20 in FIG its peripheral wall 18 centered on the side cover 2 and by several in the Edge portion 19 of the peripheral wall 18 evenly circumferentially distributed and the Side cover 2 engaging behind latching lugs 21 attached to this form-fitting becomes. The necessary space for the locking lugs 21 is thereby by a circumferential recess 31 in the adjacent edge part of the lateral surface the drive unit 4 created.
  • the sleeve-shaped housing hub 17 has, as also shown in FIG. 2 shows a cylinder wall 22 with an approximately the inner diameter the circular aperture 16 in the housing cover 14 corresponding outer diameter on, for locking the housing hub 17 on the output unit 5 at its one end face 24 with an inwardly directed bend 23 is formed.
  • the thus formed annular bottom is then passed through a central screw not shown in the drawings, with the housing hub 17 together with the output unit. 5 the device 1 is screwed to the camshaft.
  • her other End face 26 protrudes the housing hub 17 while slightly from the circuit breaker 16 in the housing cover 14 out and closes this by one after outwardly directed, unspecified bend their edge section.
  • FIGS. 1 and 2 show that the cylinder wall 22 of the housing hub 17 within the annular space 12 in the housing 11 as a hollow square 25 is formed, on which the complementarily formed inner End 10 of the coil spring 8 is positively secured.
  • inner end 10 of the coil spring 8 shaped such that, as shown in Figure 1, on all four sides of the Hohlvierkantes 25 of the housing hub 17 abuts and thus the coil spring 8 locked by positive engagement rotationally fixed to the housing hub 17.
  • the diameter of the hollow cylindrical part of the housing hub 17 and the side length of the Hohlvierkantes 25 of the housing hub 17 is formed identical and corresponding approximately to the diameter of the screw head of the central screw, with the housing hub 17 and the output unit 5 on the camshaft are bolted.
  • the outer end 9 of the coil spring 8 is against how also shown in Figure 1, shown in a hook shape and on an axial protruding suspension point on the drive unit 4, which in the pictured Device 1 by an extended fastening screw 27 for the side cover 2, 3 is formed, positively secured.

Abstract

L'invention concerne un dispositif (1) de réglage hydraulique d'angle de rotation d'un arbre à cames relativement à un vilebrequin dans un moteur à combustion interne. Ce dispositif est composé d'une unité d'entraînement (4) en liaison d'entraînement avec le vilebrequin, d'une unité de sortie (5) reliée au vilebrequin de manière fixe. L'unité d'entraînement (4) est en liaison de transmission de force avec l'unité de sortie (5) par l'intermédiaire d'au moins deux chambres de compression (6, 7) à l'intérieur du dispositif (1), lesquelles, lors de la pressurisation, provoquent un déplacement relatif ou un serrage hydraulique de l'unité de sortie (5) par rapport à unité d'entraînement (4), les fuites externes d'agent de pression étant compensées en permanence. Ledit dispositif (1) comporte en outre un ressort en spirale (8) monté à l'extérieur du dispositif (1), ce ressort servant à égaliser les vitesses de réglage du dispositif dans les deux sens de réglage. L'invention est caractérisée en ce que le ressort en spirale (8) est disposé dans un espace annulaire fermé par un boîtier (11) additionnel, cet espace pouvant être entièrement rempli par les fuites externes d'agent de pression du dispositif (1). L'agent de pression hydraulique sert également à amortir les oscillations de résonance des spires (13) du ressort en spirale (8) provoquées par les vibrations du moteur.

Claims (8)

  1. Dispositif pour modifier la distribution des soupapes de changement des gaz d'un moteur à combustion interne, notamment dispositif de réglage hydraulique de l'angle de rotation d'un arbre à cames relativement à un vilebrequin, avec les caractéristiques suivantes :
    le dispositif (1) est disposé à l'extrémité côté entraínement d'un arbre à cames monté dans la culasse du moteur à combustion interne et est réalisé pour l'essentiel sous forme d'actionneur hydraulique pouvant être commandé en fonction de différents paramètres de fonctionnement du moteur à combustion interne,
    le dispositif (1) est constitué d'une unité menante (4) qui se trouve en liaison d'entraínement avec un vilebrequin et est délimitée par deux couvercles latéraux (2, 3), et d'une unité menée (5) reliée en solidarité de rotation à l'arbre à came et insérée dans l'unité menante (4),
    l'unité menante (4) du dispositif (1) se trouve en liaison de transmission de force avec l'unité menée (5) du dispositif (1) par l'intermédiaire d'au moins deux chambres de pression (6, 7) qui sont formées à l'intérieur du dispositif (1) et qui peuvent être sollicitées alternativement ou simultanément par un fluide hydraulique sous pression,
    la sollicitation en pression des chambres de pression (6, 7) s'effectue avec une compensation permanente des fuites externes de fluide sous pression et produit une rotation relative ou un serrage hydraulique de l'unité menée (5) par rapport à l'unité menante (4) du dispositif (1),
    le dispositif (1) présente un moyen de ressort pour égaliser les vitesses de réglage du dispositif (1) dans les deux directions de réglage ainsi que pour obtenir une position préférentielle, pour le démarrage du moteur à combustion interne, de l'unité menée (5) par rapport à l'unité menante (4),
    le moyen de ressort est réalisé sous la forme d'un ressort spiral (8) qui est disposé en dehors du dispositif (1) devant un des couvercles latéraux (2 ou 3) de l'unité menante (4) et qui est fixé par une extrémité (9) sur l'unité menante (4) et par l'autre extrémité (10) sur l'unité menée (5),
    caractérisé en ce que
    le ressort spiral (8) disposé en dehors du dispositif (1) est disposé, en étant enfermé au moyen d'un boítier supplémentaire (11), dans une chambre annulaire fermée (12) qui est conjointement formée par le couvercle latéral adjacent (2) de l'unité menante (4),
    chambre qui, en coopération avec les forces centrifuges apparaissant pendant le fonctionnement du moteur à combustion interne, peut être totalement remplie par les fuites externes de fluide sous pression du dispositif (1), et de laquelle le fluide hydraulique sous pression sous forme de fuites peut être à nouveau évacué,
    sachant que, lorsque la chambre annulaire (12) est totalement remplie, le fluide hydraulique sous pression est en même temps conçu comme moyen d'amortissement vis-à-vis des fréquences de résonance des spires (13) du ressort spiral (8) qui résultent des vibrations du moteur à combustion interne.
  2. Dispositif selon la revendication 1, caractérisé en ce que le boítier supplémentaire (11) est constitué de préférence d'un couvercle de boítier (14) en forme de tasse avec une ouverture circulaire coaxiale (16) pratiquée dans son fond (15), et d'un moyeu de boítier (17) en forme de manchon, qui peut être emmanché dans cette ouverture circulaire (16).
  3. Dispositif selon la revendication 2, caractérisé en ce que le couvercle de boítier (14) en forme de tasse présente de préférence une paroi circonférentielle (18) ayant un diamètre intérieur correspondant approximativement au diamètre extérieur du couvercle latéral voisin (2) de l'unité menante (4), et il peut être assujetti sur ce couvercle latéral (2) par l'intermédiaire d'une partie de bord prolongée (19) de la paroi circonférentielle (18).
  4. Dispositif selon la revendication 3, caractérisé en ce que le couvercle de boítier (14) est centré sur le couvercle latéral (2) de l'unité menante (4) par un gradin entourant (20) de diamètre réduit pratiqué dans sa paroi circonférentielle (18), et il est fixé en engagement positif sur le couvercle latéral (2) par plusieurs ergots de crantage (21) qui sont uniformément répartis dans la partie de bord (19) de la paroi circonférentielle (18) et qui s'engagent derrière le couvercle latéral (2).
  5. Dispositif selon la revendication 2, caractérisé en ce que le moyeu de boítier (17) en forme de manchon présente de préférence une paroi cylindrique (22) ayant un diamètre extérieur correspondant approximativement au diamètre intérieur de l'ouverture circulaire (16) pratiquée dans le couvercle de boítier (14), et il peut être assujetti sur l'unité menée (5) par un coudage (23), dirigé radialement vers l'intérieur, de l'une (24) de ses faces frontales.
  6. Dispositif selon la revendication 5, caractérisé en ce que le moyeu de boítier (17) est, par l'intermédiaire de son coudage frontal (23), assemblé par une vis centrale conjointement avec l'unité menée (5) à l'arbre à cames, et sa paroi cylindrique (22) est réalisée partiellement sous forme de quatre pans creux (25), sur lequel est fixée en engagement positif l'extrémité intérieure (10), de configuration correspondante, du ressort spiral (8).
  7. Dispositif selon la revendication 1, caractérisé en ce que l'extrémité extérieure (9) du ressort spiral (8) est de préférence réalisée recourbée en forme de crochet et est fixée en engagement positif en un point de suspension partant axialement en saillie sur l'unité menante (4), par exemple sur une vis de fixation prolongée (27) pour les couvercles latéraux (2, 3) de l'unité menante (4), ou analogue.
  8. Dispositif selon la revendication 1, caractérisé en ce que
    les fuites externes de fluide sous pression de l'unité menante (4) et de l'unité menée (5) peuvent être évacuées de manière dirigée vers une ouverture coaxiale (28) dans le couvercle latéral (2) de l'unité menante (4) qui est voisin du boítier (11),
    et elles peuvent être, par un passage annulaire (29) entre l'ouverture (28) et le moyeu de boítier (17), introduites dans la chambre annulaire (12) du boítier (11), et à nouveau évacuées de cette chambre par un autre passage annulaire (30) entre le couvercle de boítier (14) et le moyeu de boítier (17).
EP03745762A 2002-04-11 2003-03-07 Dispositif pour modifier la distribution des soupapes d'echange gazeux d'un moteur a combustion interne, notamment dispositif de reglage hydraulique d'angle de rotation d'un arbre a cames relativement a un vilebrequin Expired - Lifetime EP1492943B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10215879A DE10215879A1 (de) 2002-04-11 2002-04-11 Vorrichtung zum Verändern der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine, insbesondere Einrichtung zur hydraulischen Drehwinkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle
DE10215879 2002-04-11
PCT/EP2003/002330 WO2003085238A1 (fr) 2002-04-11 2003-03-07 Dispositif pour modifier la distribution des soupapes d'echange gazeux d'un moteur a combustion interne, notamment dispositif de reglage hydraulique d'angle de rotation d'un arbre a cames relativement a un vilebrequin

Publications (2)

Publication Number Publication Date
EP1492943A1 EP1492943A1 (fr) 2005-01-05
EP1492943B1 true EP1492943B1 (fr) 2005-08-31

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EP03745762A Expired - Lifetime EP1492943B1 (fr) 2002-04-11 2003-03-07 Dispositif pour modifier la distribution des soupapes d'echange gazeux d'un moteur a combustion interne, notamment dispositif de reglage hydraulique d'angle de rotation d'un arbre a cames relativement a un vilebrequin

Country Status (5)

Country Link
EP (1) EP1492943B1 (fr)
KR (1) KR100929519B1 (fr)
AU (1) AU2003210432A1 (fr)
DE (2) DE10215879A1 (fr)
WO (1) WO2003085238A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006002993A1 (de) * 2006-01-21 2007-08-09 Schaeffler Kg Nockenwellenversteller für eine Brennkraftmaschine
EP1833147B1 (fr) * 2006-03-06 2010-12-29 Honda Motor Co., Ltd. Moteur électrique
DE102006036052B4 (de) * 2006-08-02 2018-03-08 Schaeffler Technologies AG & Co. KG Dichtblech für einen Nockenwellenversteller und Nockenwellenversteller mit einem Dichtblech
DE102008048386B4 (de) 2008-09-22 2016-12-01 Hilite Germany Gmbh Flügelzellennockenwellenversteller
DE102008051732A1 (de) * 2008-10-15 2010-04-22 Schaeffler Kg Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine
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DE102013212943B4 (de) 2013-07-03 2017-01-26 Schaeffler Technologies AG & Co. KG Anbindung eines Verstellaktuators an ein Zentralventilsystem für einen trockenen Riementrieb
DE102013022320B4 (de) 2013-07-03 2020-02-06 Schaeffler Technologies AG & Co. KG Anbindung eines Verstellaktuators an ein Zentralventilsystem für einen trockenen Riementrieb
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KR100929519B1 (ko) 2009-12-03
DE10215879A1 (de) 2003-10-23
WO2003085238A1 (fr) 2003-10-16
DE50301108D1 (de) 2005-10-06
EP1492943A1 (fr) 2005-01-05
KR20040101441A (ko) 2004-12-02
AU2003210432A1 (en) 2003-10-20

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