WO2006129042A2 - Sealing device for clutch cover - Google Patents
Sealing device for clutch cover Download PDFInfo
- Publication number
- WO2006129042A2 WO2006129042A2 PCT/FR2006/050502 FR2006050502W WO2006129042A2 WO 2006129042 A2 WO2006129042 A2 WO 2006129042A2 FR 2006050502 W FR2006050502 W FR 2006050502W WO 2006129042 A2 WO2006129042 A2 WO 2006129042A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- clutch
- crankshaft
- torque
- seal
- bearing
- Prior art date
Links
Classifications
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- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
- F16D25/123—Details not specific to one of the before-mentioned types in view of cooling and lubrication
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
- F16H57/0454—Sealings between different partitions of a gearing or to a reservoir
Definitions
- the invention relates to the motor vehicle engine field, and in particular to the field of sealing and torque transmission devices between the clutch and the engine torque damper.
- the patent application DE 198 21 164 proposed to ensure the transmission of torque between the damper and the clutch bell by a body located in alignment with the primary shafts of the gearbox.
- This body includes splines connected to the torque damper and located within the diameter defined by the torque damper mounting screws on the crankshaft of the engine.
- the same body is integral with the clutch housing and receives a seal attached to the inside of a clutch cover so that the clutches are sealingly insulated from the portion connected to the torque damper. .
- This body being in alignment with the primary shafts of the gearbox, the groove diameter and the diameter of the seal are small so that the effect of the misalignments is reduced.
- the device and the motor of the invention make it possible to solve the preceding problems and in particular to ensure the transmission of the torque and the seal between a shock absorber and a clutch while reducing the space between the clutch and the crankshaft of the engine. engine.
- the sealing and torque transmission device between a clutch device and a motor vehicle engine torque damper comprises a rotational drive element connected to the clutch device and to the engine. torque damper, and a clutch cover sealingly connected to a clutch housing and traversed by the drive member. A seal seals between the clutch cover and the drive member.
- the clutch cover and the drive member are rotatably mounted relative to each other by a bearing.
- the bearing is a rolling bearing whose rings are pressed sheet metal, an outer ring being sealingly integrated with the clutch cover, and an inner ring being sealingly mounted on a support portion of the element training.
- the seal is mounted on a cylindrical portion of the outer ring and seals between the two rings of the bearing, and wherein the bearing is located axially between the clutch and the seal.
- the device may also include an inner cover sealingly attached to the support portion of the drive member.
- the drive element comprises a first portion connected to the clutch and a second portion connected to the torque damper, the two parts being secured in rotation by notches of conjugate shapes.
- the first part of the driving element may comprise the support portion.
- the motor vehicle engine is equipped with a clutch device, a crankshaft, and a torque damper rotated by the crankshaft by a means of fixing the shock absorber. torque on the crankshaft, and comprising a sealing and torque transmission device, wherein the seal has a diameter greater than the means of attachment to the crankshaft.
- the driving element comprises splines, driven by the torque damper, located at the same axial level, and surrounding the fixing means on the crankshaft.
- the sealing device and torque transmission has a central prominence penetrating inside the fastening means on the crankshaft, and the clutch device has an end at the same axial level as the fixing means on the crankshaft. .
- the clutch is a multiple clutch.
- the single figure is a partial half section of the coupling between an engine block and a gearbox.
- the engine block comprises a motor body 1 in which is rotatably mounted a crankshaft 2 of axis 2b, and a gearbox body 3 in which is rotatably mounted a primary shaft 4 of axis 4b.
- the engine is an internal combustion engine, so that the instantaneous engine torque transmitted by the crankshaft 2 has significant variations during the combustion cycle of the engine.
- the engine torque is transmitted from the crankshaft 2 to the primary shaft 4 of the gearbox 3 by a torque damper 5 and a clutch device 6.
- the torque damper 5 comprises an upstream portion 7 securely attached to the crankshaft 2 and a downstream portion 8 provided with a weight 8a.
- the downstream portion 8 is connected to the upstream portion 7 by an elastic means 8b, damping a relative oscillation movement between the upstream portion 7 and the downstream portion 8.
- the torque and the instantaneous speed of rotation of the downstream portion 8 have variations damped with respect to the torque and the instantaneous speed of rotation of the upstream part 7.
- the upstream part 7 is securely fixed to the crankshaft 2 by a fastening means 9 of the torque damper 5 on the crankshaft 2, which comprises a centering diameter 10, a bearing ring 11 and fastening screws 12 distributed all around the bearing ring 11.
- the torque damper 5 is rotated about the axis 2b of the crankshaft 2.
- the clutch device 6 comprises a clutch bell 13, a set of driving discs 14, a set of driven discs 15, a driven disc support 16 and a control piston 17 actuated by a hydraulic force and means not shown in the figure.
- the driving discs 14 are movable in translation and rotatably connected relative to the clutch bell 13.
- the driven discs 15 are movable in translation and rotatably connected relative to the support 16 of the driven discs 15.
- the support 16 is connected in rotation to the primary shaft 4 by splines in the vicinity of one end 4a of the primary shaft 4.
- the control piston 17 makes it possible to push the driven and driving discs 14 against each other until a stop 18 of the clutch bell 13.
- the pressurization of the discs carried out between two driving disks 14 makes it possible to progressively secure the rotation of the clutch bell 13 to the primary shaft 4.
- This progressive attachment of the clutch device accompanied by a relative sliding of the driving discs between the driven discs.
- the heating due to this friction is removed by oil, not shown in the figure.
- the clutch device 6 is in its entirety rotated about the axis 4b of the primary shaft 4 of the gearbox 3.
- the device comprises a driving element 19 composed of a first part 20 bound to the clutch bell 13 and a second portion 21 connected to the downstream portion 8 of the torque damper 5.
- the device also comprises a clutch cover 22, a rolling bearing 23 equipped with a gasket sealing 24 and an inner cover 25.
- the first portion 20 of the drive member 19 is in the form of an annular disk 20a coaxial with the primary shaft 4.
- the outer diameter of the first portion 20 is provided with notches 26 cooperating with grooves 27 of the clutch bell 13.
- the first portion 20 also comprises, in the vicinity of the inside diameter of the annular disc 20a, a tubular support portion 28, coaxial with the annular disk 20a, and provided with internal notches 29.
- the inner notches 29 comprise lateral stops whose bearing planes are substantially parallel to the axis of the primary shaft 4.
- the second portion 21 of the drive member 19 also has an annular shape, substantially coaxial with the crankshaft 2.
- the outer diameter of the second portion 21 comprises grooves 30 parallel to the axis of the second portion 21 and co-operating with conjugate splines formed in the downstream portion 8 of the torque damper 5.
- a bearing surface 31 In the vicinity of the inside diameter of the second portion 21 of the driving element 19 is formed a bearing surface 31, perpendicular to the axis of the second part 21.
- Drive fingers 32 parallel to the axis of the second portion 21, project relative to the bearing surface 31.
- the mechanical attachment of the gearbox body 3 to the motor body 2 may be accompanied by a radial alignment defect of the axis 4b of the primary shaft 4 with respect to the axis 2b of the crankshaft 2.
- the driving element 19 makes it possible to ensure the transmission of torque from the downstream portion 8 of the torque damper 5 to the clutch bell 13.
- the driving fingers 32 of the second portion 21 of the driving element 19 penetrate into the inner notches 29 of the first part 20 of the driving element 19 and bear on the lateral surfaces of the inner notches 29.
- a radial sliding of the drive finger 32 with respect to the internal notches 29 makes it possible to catch the radial misalignment.
- the angular misalignment is caught up by the that the bearing surface 31 of the second part 21 may not be exactly parallel with the part opposite the first part 20.
- the rolling bearing 23 comprises an outer ring 33 and an inner ring 34 of stamped sheet metal, part of which serves as a raceway for balls.
- the inner ring 34 is forcefully and sealingly mounted on an outer cylindrical bearing surface of the support portion 28 of the first portion 20 and the outer ring 33 is forcefully and sealingly mounted on the clutch cover 22.
- the clutch cover 22 has a symmetry of revolution around the primary shaft 4 and is sealingly fixed by fastening screws 22a to a part of the body of the gearbox 3 serving as a clutch housing.
- the seal 24 has an outer diameter of fitting and an elastic inner lip. The fitting diameter of the seal 24 is force-fitted inside a cylindrical portion 35 of the outer ring 33.
- the inner lip is supported on a bearing diameter on the inner ring 34.
- the inner ring 34 is rotatable relative to the outer ring 33 so that the lip rubs on the bearing diameter.
- the pressure exerted by the lip is sufficient all around the diameter of the lip support to ensure a seal. It is also necessary that the friction of the lip on the diameter of support is limited to avoid heating the lip.
- the pressure exerted by the lip is lower on the opposite side to the eccentricity, and may cause oil leakage, and stronger on the eccentric side and may exceed the elastic limit of the lip material.
- the greater the diameter of support is large larger dimension is the relative speed of the bearing diameter and the lip, and more heating due to the friction of the lip is important.
- the sealing gasket 24 of the embodiment is fitted into the cylindrical portion 35, integral with the body of the gearbox 3, with respect to which the primary shaft 4 and the clutch housing 13 have an axis. 4b substantially fixed rotation. Due to the presence of the rolling bearing 23, the diameter on which the lip of the seal 24 bears is relatively eccentric with respect to the cylindrical portion 35 of fitting of the seal 24. Thus, the The lip seal and the corresponding rolling bearing 38 may be larger than the radial dimensions of the fastening means 9 of the torque damper 5 on the crankshaft 2. The radial size of the fastening means 9 is defined by the circle circumscribing the heads of the fixing screws 12.
- the driving element 19 has splines 30 located substantially in the same radial plane as the fixing means 9.
- the inner lid 25 also has a symmetrical shape of revolution around the axis of the primary shaft 4 and is fixed sealingly or by welding on an inner diameter of the support portion 28 of the first portion 20 of the drive member 19.
- the inner cover 25 crosses the axis transversely and closes the opening defined by the inner diameter of the annular disc 20a of the first part 20.
- the lubricating oil of the clutch device 6 is maintained in an enclosed space delimited by the succession of the following elements, sealed with respect to each other: the body of the gearbox 3, the clutch cover 22, the outer ring 33, the seal 24, the inner ring 34, the support portion 28 of the first portion 20, and the inner cover 25.
- the inner cover 25 mainly provides the sealing function of the clutch oil relative to the outside of the gearbox. It is not subjected to any torque and its thickness can be reduced. It has a penetrating central prominence inside the fastening means 9 on the crankshaft 2. Thus the end 4a of the primary shaft 4 arrives substantially in the same radial plane as the fastening means 9 on the crankshaft 2.
- the interpenetration of the primary shaft 4 and the crankshaft 2 is one of the advantages that the large diameter seal 24 makes it possible to obtain thanks to the presence of the rolling bearing 23.
- This advantage is particularly advantageous in the non shown in the figure, wherein the gearbox has two coaxial primary shafts each driven by two clutch devices similar to that described. Multi-clutch devices generally have a greater axial distance than single clutches.
- the interpenetration of the primary shaft into a same radial plane as the fastening means 9 of the torque damper 5 on the Crankshaft 2 optimizes the overall size of the engine block.
- the described embodiment has a support portion 28 integrated with the first part 20.
- Another embodiment would consist in that the inner ring 34 bears on a cylindrical part of the second part 21, and that the defects of misalignment between the axis 2b of the crankshaft 2 and the axis 4b of the primary shaft 4 are concealed by means other than that described, such as for example the flexibility of the clutch cover 22.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention concerns a sealing and torque transmission device between a clutch device (6) and a torque damper (5) for a motor vehicle engine, comprising an element for rotational drive (19) connected to the clutch device (6) and to the torque damper (5) as well as a clutch cover (22) sealingly connected to a clutch housing (3) and traversed by the drive element (19), a joint (24) ensuring tightness between the clutch cover (22) and the drive element (19). The invention is characterized in that the clutch cover (22) and the drive element (19) are mounted mutually rotatable through a bearing (23).
Description
Dispositif d'étanchéité pour couvercle d'embrayage. Sealing device for clutch cover.
L' invention concerne le domaine moteur de véhicule automobile, et en particulier le domaine des dispositifs d' étanchéité et de transmission de couple entre embrayage et amortisseur de couple du moteur.The invention relates to the motor vehicle engine field, and in particular to the field of sealing and torque transmission devices between the clutch and the engine torque damper.
Entre l' amortisseur de couple, solidaire du vilebrequin d'un moteur, et l' embrayage, solidaire de la boîte de vitesses, il est nécessaire de transmettre un couple et d' assurer une étanchéité. Cependant, de nombreuses tolérances interviennent dans l' alignement axial, radial, et surtout angulaire entre l' amortisseur de couple et l' embrayage. La demande de brevet DE 198 21 164 a proposé d' assurer la transmission du couple entre l' amortisseur de couple et la cloche d' embrayage par un corps situé dans l' alignement des arbres primaires de la boîte de vitesses. Ce corps comprend des cannelures reliées à l' amortisseur de couple et situées à l' intérieur du diamètre défini par les vis de fixation de l' amortisseur de couple sur le vilebrequin du moteur. Ce même corps est solidaire de la cloche d' embrayage et reçoit un joint d' étanchéité fixé à l' intérieur d'un couvercle d' embrayage de sorte que les embrayages sont isolés de manière étanche de la partie reliée à l' amortisseur de couple. Ce corps étant dans l' alignement des arbres primaires de la boîte de vitesses, le diamètre de cannelures ainsi que le diamètre du joint d' étanchéité sont faibles de sorte que l' effet des mesalignements est réduit.Between the shock absorber, integral with the crankshaft of an engine, and the clutch, integral with the gearbox, it is necessary to transmit a torque and to ensure a seal. However, many tolerances occur in the axial, radial, and especially angular alignment between the shock absorber and the clutch. The patent application DE 198 21 164 proposed to ensure the transmission of torque between the damper and the clutch bell by a body located in alignment with the primary shafts of the gearbox. This body includes splines connected to the torque damper and located within the diameter defined by the torque damper mounting screws on the crankshaft of the engine. The same body is integral with the clutch housing and receives a seal attached to the inside of a clutch cover so that the clutches are sealingly insulated from the portion connected to the torque damper. . This body being in alignment with the primary shafts of the gearbox, the groove diameter and the diameter of the seal are small so that the effect of the misalignments is reduced.
L'inconvénient d'un tel dispositif d' étanchéité et de transmission de couple est que ledit corps occupe un encombrement axial rallongeant la boîte de vitesses et notamment écartant les embrayages du bloc moteur. Cet encombrement axial est gênant pour l' implantation dans certains véhicules.
L'inconvénient est particulièrement important pour les embrayages doubles qui ont déj à naturellement un encombrement axial important.The disadvantage of such a sealing device and torque transmission is that said body occupies an axial space lengthening the gearbox and in particular spreading the clutches of the engine block. This axial space is troublesome for the installation in certain vehicles. The disadvantage is particularly important for double clutches which already naturally have a large axial size.
Le dispositif et le moteur de l'invention permettent de résoudre les problèmes précédents et notamment d' assurer la transmission du couple et l' étanchéité entre un amortisseur de couple et un embrayage tout en réduisant l' espace entre l' embrayage et le vilebrequin du moteur .The device and the motor of the invention make it possible to solve the preceding problems and in particular to ensure the transmission of the torque and the seal between a shock absorber and a clutch while reducing the space between the clutch and the crankshaft of the engine. engine.
Selon un mode de réalisation, le dispositif d'étanchéité et de transmission de couple entre un dispositif d' embrayage et un amortisseur de couple pour moteur de véhicule automobile, comprend un élément d' entraînement en rotation relié au dispositif d'embrayage et à l' amortisseur de couple, ainsi qu'un couvercle d' embrayage relié de manière étanche à un carter d' embrayage, et traversé par l' élément d' entraînement. Un joint assure l' étanchéité entre le couvercle d' embrayage et l' élément d' entraînement. Le couvercle d' embrayage et l' élément d' entraînement sont montés à rotation l'un par rapport à l' autre grâce à un palier.According to one embodiment, the sealing and torque transmission device between a clutch device and a motor vehicle engine torque damper comprises a rotational drive element connected to the clutch device and to the engine. torque damper, and a clutch cover sealingly connected to a clutch housing and traversed by the drive member. A seal seals between the clutch cover and the drive member. The clutch cover and the drive member are rotatably mounted relative to each other by a bearing.
La présence d'un palier permet de réduire l'excentration du diamètre sur lequel la lèvre du joint doit assurer une étanchéité. Cela permet d'utiliser un joint de plus grand diamètre, et ainsi de favoriser l' interpénétration des composants du dispositif d'embrayage avec le vilebrequin. Cela réduit l' encombrement global d'un bloc moteur comprenant la boîte de vitesse et le moteur.The presence of a bearing makes it possible to reduce the eccentricity of the diameter on which the lip of the seal must ensure a seal. This allows to use a larger diameter seal, and thus to promote the interpenetration of the components of the clutch device with the crankshaft. This reduces the overall size of an engine block including the gearbox and the engine.
Avantageusement, le palier est un palier à roulement dont les bagues sont en tôle embouties, une bague extérieure étant intégrée de manière étanche au couvercle d' embrayage, et une bague intérieure étant montée de manière étanche sur une portion de support de l' élément d' entraînement.
Avantageusement, le joint d' étanchéité est monté sur une partie cylindrique de la bague extérieure et assure l'étanchéité entre les deux bagues du palier, et dans lequel le roulement est situé axialement entre l' embrayage et le joint d' étanchéité. Le dispositif peut également comprendre un couvercle intérieur fixé de manière étanche sur la portion de support de l'élément d' entraînement.Advantageously, the bearing is a rolling bearing whose rings are pressed sheet metal, an outer ring being sealingly integrated with the clutch cover, and an inner ring being sealingly mounted on a support portion of the element training. Advantageously, the seal is mounted on a cylindrical portion of the outer ring and seals between the two rings of the bearing, and wherein the bearing is located axially between the clutch and the seal. The device may also include an inner cover sealingly attached to the support portion of the drive member.
Avantageusement, l' élément d' entraînement comprend une première partie reliée à l' embrayage et une deuxième partie reliée à l' amortisseur de couple, les deux parties étant solidarisées en rotation par des crans de formes conjuguées. La première partie de l'élément d' entraînement peut comprendre la portion de support.Advantageously, the drive element comprises a first portion connected to the clutch and a second portion connected to the torque damper, the two parts being secured in rotation by notches of conjugate shapes. The first part of the driving element may comprise the support portion.
Selon un mode de réalisation, le moteur de véhicule automobile est équipé d'un dispositif d' embrayage, d'un vilebrequin, et d'un amortisseur de couple entraîné en rotation par le vilebrequin grâce à un moyen de fixation de l' amortisseur de couple sur le vilebrequin, et comprenant un dispositif d' étanchéité et de transmission de couple, dans lequel le joint d' étanchéité présente un diamètre supérieur au moyen de fixation sur le vilebrequin.According to one embodiment, the motor vehicle engine is equipped with a clutch device, a crankshaft, and a torque damper rotated by the crankshaft by a means of fixing the shock absorber. torque on the crankshaft, and comprising a sealing and torque transmission device, wherein the seal has a diameter greater than the means of attachment to the crankshaft.
Avantageusement, l' élément d'entraînement comprend des cannelures, entraînées par l' amortisseur de couple, situées au même niveau axial, et entourant le moyen de fixation sur le vilebrequin.Advantageously, the driving element comprises splines, driven by the torque damper, located at the same axial level, and surrounding the fixing means on the crankshaft.
Avantageusement, le dispositif d'étanchéité et de transmission de couple présente une proéminence centrale pénétrant à l' intérieur du moyen de fixation sur le vilebrequin, et le dispositif d' embrayage présente une extrémité au même niveau axial que le moyen de fixation sur le vilebrequin.Advantageously, the sealing device and torque transmission has a central prominence penetrating inside the fastening means on the crankshaft, and the clutch device has an end at the same axial level as the fixing means on the crankshaft. .
Avantageusement, l' embrayage est un embrayage multiple.Advantageously, the clutch is a multiple clutch.
D' autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée d'un mode de
réalisation de dispositif et de moteur pris à titre d' exemple non limitatif et illustré par les dessins annexés, sur lesquels :Other characteristics and advantages of the invention will appear on reading the detailed description of a mode of embodiment of a device and motor taken by way of nonlimiting example and illustrated by the appended drawings, in which:
-la figure unique est une demi-coupe partielle de l' accouplement entre un bloc moteur et une boîte de vitesses.the single figure is a partial half section of the coupling between an engine block and a gearbox.
Comme illustré sur la figure, le bloc moteur comprend un corps de moteur 1 dans lequel est monté à rotation un vilebrequin 2 d' axe 2b, et un corps de boîte de vitesses 3 dans lequel est monté à rotation un arbre primaire 4 d' axe 4b. Le moteur est un moteur à combustion interne, de sorte que le couple moteur instantané transmis par le vilebrequin 2 présente des variations importantes au cours du cycle de combustion du moteur. Le couple moteur est transmis du vilebrequin 2 à l' arbre primaire 4 de la boîte de vitesses 3 par un amortisseur de couple 5 et un dispositif d' embrayage 6.As illustrated in the figure, the engine block comprises a motor body 1 in which is rotatably mounted a crankshaft 2 of axis 2b, and a gearbox body 3 in which is rotatably mounted a primary shaft 4 of axis 4b. The engine is an internal combustion engine, so that the instantaneous engine torque transmitted by the crankshaft 2 has significant variations during the combustion cycle of the engine. The engine torque is transmitted from the crankshaft 2 to the primary shaft 4 of the gearbox 3 by a torque damper 5 and a clutch device 6.
L' amortisseur de couple 5 comprend une partie amont 7 solidement fixée sur le vilebrequin 2 et une partie aval 8 munie d'une masselotte 8a. La partie avale 8 est reliée à la partie amont 7 par un moyen élastique 8b, amortissant un mouvement d' oscillation relatif entre les parties amont 7 et aval 8. Ainsi, le couple et la vitesse de rotation instantanée de la partie aval 8 présentent des variations amorties par rapport au couple et à la vitesse de rotation instantanée de la partie amont 7.The torque damper 5 comprises an upstream portion 7 securely attached to the crankshaft 2 and a downstream portion 8 provided with a weight 8a. The downstream portion 8 is connected to the upstream portion 7 by an elastic means 8b, damping a relative oscillation movement between the upstream portion 7 and the downstream portion 8. Thus, the torque and the instantaneous speed of rotation of the downstream portion 8 have variations damped with respect to the torque and the instantaneous speed of rotation of the upstream part 7.
La partie amont 7 est solidement fixée au vilebrequin 2 par un moyen de fixation 9 de l' amortisseur de couple 5 sur le vilebrequin 2, qui comprend un diamètre de centrage 10, une couronne d' appui 11 et des vis de fixation 12 réparties tout autour de la couronne d' appui 11. L' amortisseur de couple 5 est en rotation autour de l' axe 2b du vilebrequin 2.The upstream part 7 is securely fixed to the crankshaft 2 by a fastening means 9 of the torque damper 5 on the crankshaft 2, which comprises a centering diameter 10, a bearing ring 11 and fastening screws 12 distributed all around the bearing ring 11. The torque damper 5 is rotated about the axis 2b of the crankshaft 2.
Le dispositif d' embrayage 6 comprend une cloche d' embrayage 13, un ensemble de disques menants 14, un ensemble de disques menés
15, un support de disques menés 16 et un piston de commande 17 actionné par une force hydraulique et des moyens non représentés sur la figure. Les disques menants 14 sont mobiles en translation et liés en rotation par rapport à la cloche d' embrayage 13. Les disques menés 15 sont mobiles en translation et liés en rotation par rapport au support 16 de disques menés 15. Le support 16 est lié en rotation à l' arbre primaire 4 par des cannelures au voisinage d'une extrémité 4a de l' arbre primaire 4. Le piston de commande 17 permet de pousser les disques menés 15 et menants 14 les uns contre les autres jusqu' à une butée 18 de la cloche d' embrayage 13. La mise en pression des disques menés 15 entre deux disques menants 14 permet de solidariser progressivement la rotation de la cloche d' embrayage 13 à l' arbre primaire 4. Cette solidarisation progressive du dispositif d' embrayage s' accompagne d'un glissement relatif des disques menants entre les disques menés. L' échauffement dû à ce frottement est évacué par de l'huile, non représentée sur la figure. Le dispositif d' embrayage 6 est dans son ensemble en rotation autour de l' axe 4b de l' arbre primaire 4 de la boîte de vitesses 3.The clutch device 6 comprises a clutch bell 13, a set of driving discs 14, a set of driven discs 15, a driven disc support 16 and a control piston 17 actuated by a hydraulic force and means not shown in the figure. The driving discs 14 are movable in translation and rotatably connected relative to the clutch bell 13. The driven discs 15 are movable in translation and rotatably connected relative to the support 16 of the driven discs 15. The support 16 is connected in rotation to the primary shaft 4 by splines in the vicinity of one end 4a of the primary shaft 4. The control piston 17 makes it possible to push the driven and driving discs 14 against each other until a stop 18 of the clutch bell 13. The pressurization of the discs carried out between two driving disks 14 makes it possible to progressively secure the rotation of the clutch bell 13 to the primary shaft 4. This progressive attachment of the clutch device accompanied by a relative sliding of the driving discs between the driven discs. The heating due to this friction is removed by oil, not shown in the figure. The clutch device 6 is in its entirety rotated about the axis 4b of the primary shaft 4 of the gearbox 3.
On va maintenant décrire un mode de réalisation de dispositif d' étanchéité et de transmission de couple entre le dispositif d' embrayage 6 et l' amortisseur de couple 5. Le dispositif comprend un élément d'entraînement 19 composé d'une première partie 20 liée à la cloche d'embrayage 13 et d'une deuxième partie 21 liée à la partie aval 8 de l' amortisseur de couple 5. Le dispositif comprend également un couvercle d' embrayage 22, un palier à roulement 23 équipé d'un joint d' étanchéité 24 et un couvercle interne 25.An embodiment of a sealing device and torque transmission between the clutch device 6 and the torque damper 5 will now be described. The device comprises a driving element 19 composed of a first part 20 bound to the clutch bell 13 and a second portion 21 connected to the downstream portion 8 of the torque damper 5. The device also comprises a clutch cover 22, a rolling bearing 23 equipped with a gasket sealing 24 and an inner cover 25.
La première partie 20 de l' élément d' entraînement 19 a la forme d'un disque annulaire 20a coaxial avec l' arbre primaire 4. Le diamètre extérieur de la première partie 20 est muni de crans 26
coopérant avec des rainures 27 de la cloche d'embrayage 13. La première partie 20 comprend également, au voisinage du diamètre intérieur du disque annulaire 20a, une portion de support 28 tubulaire, coaxiale au disque annulaire 20a, et munie de crans intérieurs 29. Les crans intérieurs 29 comprennent des butées latérales dont les plans d' appui sont sensiblement parallèles à l' axe de l' arbre primaire 4.The first portion 20 of the drive member 19 is in the form of an annular disk 20a coaxial with the primary shaft 4. The outer diameter of the first portion 20 is provided with notches 26 cooperating with grooves 27 of the clutch bell 13. The first portion 20 also comprises, in the vicinity of the inside diameter of the annular disc 20a, a tubular support portion 28, coaxial with the annular disk 20a, and provided with internal notches 29. The inner notches 29 comprise lateral stops whose bearing planes are substantially parallel to the axis of the primary shaft 4.
La deuxième partie 21 de l' élément d'entraînement 19 a également une forme annulaire, sensiblement coaxiale avec le vilebrequin 2. Le diamètre extérieur de la deuxième partie 21 comprend des cannelures 30 parallèles à l' axe de la deuxième partie 21 et coopérant avec des cannelures conjuguées formées dans la partie aval 8 de l' amortisseur de couple 5. Au voisinage du diamètre intérieur de la deuxième partie 21 de l'élément d' entraînement 19 est ménagée une surface d' appui 31 , perpendiculaire à l' axe de la deuxième partie 21. Des doigts d' entraînement 32, parallèles à l' axe de la deuxième partie 21 , font saillie par rapport à la surface d' appui 31.The second portion 21 of the drive member 19 also has an annular shape, substantially coaxial with the crankshaft 2. The outer diameter of the second portion 21 comprises grooves 30 parallel to the axis of the second portion 21 and co-operating with conjugate splines formed in the downstream portion 8 of the torque damper 5. In the vicinity of the inside diameter of the second portion 21 of the driving element 19 is formed a bearing surface 31, perpendicular to the axis of the second part 21. Drive fingers 32, parallel to the axis of the second portion 21, project relative to the bearing surface 31.
La fixation mécanique du corps de boîte de vitesses 3 sur le corps de moteur 2 peut s' accompagner d'un défaut radial d' alignement de l' axe 4b de l' arbre primaire 4 par rapport à l' axe 2b du vilebrequin 2. L' élément d' entraînement 19 permet d' assurer la transmission du couple depuis la partie aval 8 de l' amortisseur de couple 5 vers la cloche d' embrayage 13. En effet, les doigts d' entraînement 32 de la deuxième partie 21 de l' élément d'entraînement 19 pénètrent dans les crans intérieurs 29 de la première partie 20 de l'élément d' entraînement 19 et prennent appui sur les surfaces latérales des crans intérieurs 29. Un glissement radial du doigt d' entraînement 32 par rapport aux crans intérieurs 29 permet de rattraper le mésalignement radial. Le mésalignement angulaire est rattrapé par le
fait que la surface d' appui 31 de la deuxième partie 21 peut n' être pas exactement parallèle avec la partie en regard de la première partie 20.The mechanical attachment of the gearbox body 3 to the motor body 2 may be accompanied by a radial alignment defect of the axis 4b of the primary shaft 4 with respect to the axis 2b of the crankshaft 2. The driving element 19 makes it possible to ensure the transmission of torque from the downstream portion 8 of the torque damper 5 to the clutch bell 13. In effect, the driving fingers 32 of the second portion 21 of the the driving element 19 penetrate into the inner notches 29 of the first part 20 of the driving element 19 and bear on the lateral surfaces of the inner notches 29. A radial sliding of the drive finger 32 with respect to the internal notches 29 makes it possible to catch the radial misalignment. The angular misalignment is caught up by the that the bearing surface 31 of the second part 21 may not be exactly parallel with the part opposite the first part 20.
Le palier à roulement 23 comprend une bague extérieure 33 et une bague intérieure 34 en tôle emboutie, dont une partie sert de chemin de roulement à des billes. La bague intérieure 34 est montée en force et de manière étanche sur une portée cylindrique extérieure de la portion de support 28 de la première partie 20 et la bague extérieure 33 est montée en force et de manière étanche sur le couvercle d' embrayage 22. Le couvercle d' embrayage 22 présente une symétrie de révolution autour de l' arbre primaire 4 et est fixé de manière étanche par des vis de fixation 22a à une partie du corps de la boîte de vitesses 3 servant de carter d' embrayage. Le joint d' étanchéité 24 présente un diamètre extérieur d' emmanchement et une lèvre intérieure élastique. Le diamètre d' emmanchement du joint 24 est monté en force à l'intérieur d'une partie cylindrique 35 de la bague extérieure 33. La lèvre intérieure s' appuie sur un diamètre d' appui situé sur la bague intérieure 34. La bague intérieure 34 est mobile en rotation par rapport à la bague extérieure 33 de sorte que la lèvre frotte sur le diamètre d' appui.The rolling bearing 23 comprises an outer ring 33 and an inner ring 34 of stamped sheet metal, part of which serves as a raceway for balls. The inner ring 34 is forcefully and sealingly mounted on an outer cylindrical bearing surface of the support portion 28 of the first portion 20 and the outer ring 33 is forcefully and sealingly mounted on the clutch cover 22. The clutch cover 22 has a symmetry of revolution around the primary shaft 4 and is sealingly fixed by fastening screws 22a to a part of the body of the gearbox 3 serving as a clutch housing. The seal 24 has an outer diameter of fitting and an elastic inner lip. The fitting diameter of the seal 24 is force-fitted inside a cylindrical portion 35 of the outer ring 33. The inner lip is supported on a bearing diameter on the inner ring 34. The inner ring 34 is rotatable relative to the outer ring 33 so that the lip rubs on the bearing diameter.
Pour qu'un joint à lèvre fonctionne correctement, il faut que la pression exercée par la lèvre soit suffisante sur tout le pourtour du diamètre d' appui de la lèvre pour assurer une étanchéité. Il faut aussi que le frottement de la lèvre sur le diamètre d' appui soit limité pour éviter d' échauffer la lèvre. Quand le diamètre d' appui de la lèvre est excentré par rapport au diamètre d' emmanchement du joint à lèvre, la pression exercée par la lèvre est plus faible du côté opposé à l' excentration, et peut provoquer des fuites d'huile, et plus forte du côté de l'excentration et peut dépasser la limite élastique du matériau de la lèvre. Par ailleurs, plus le diamètre d' appui est de grande
dimension, plus grande est la vitesse relative du diamètre d' appui et de la lèvre, et plus r échauffement dû au frottement de la lèvre est important. Le cumul d'un diamètre d' appui de la lèvre de grande dimension avec une excentration importante du diamètre d' appui par rapport au diamètre d'emmanchement est très pénalisant pour un joint à lèvre. En d' autres termes, il est possible d' avoir des joints à lèvre de petits diamètres qui supportent une excentration élevée, mais des joints à lèvre de grand diamètre ne peuvent fonctionner qu' avec une excentration réduite du diamètre d' appui de la lèvre par rapport au diamètre d' emmanchement du joint à lèvre.For a lip seal to function properly, it is necessary that the pressure exerted by the lip is sufficient all around the diameter of the lip support to ensure a seal. It is also necessary that the friction of the lip on the diameter of support is limited to avoid heating the lip. When the bearing diameter of the lip is eccentric with respect to the press fitting diameter of the lip seal, the pressure exerted by the lip is lower on the opposite side to the eccentricity, and may cause oil leakage, and stronger on the eccentric side and may exceed the elastic limit of the lip material. Moreover, the greater the diameter of support is large larger dimension is the relative speed of the bearing diameter and the lip, and more heating due to the friction of the lip is important. The combination of a support diameter of the large lip with a large eccentricity of the support diameter relative to the fitting diameter is very disadvantageous for a lip seal. In other words, it is possible to have lip seals of small diameters that support high eccentricity, but large diameter lip seals can only work with a reduced eccentricity of the lip support diameter. relative to the fitting diameter of the lip seal.
Le j oint d'étanchéité 24 du mode de réalisation est emmanché dans la partie cylindrique 35, solidaire du corps de la boîte de vitesses 3, vis-à-vis duquel l' arbre primaire 4 et la cloche d' embrayage 13 présentent un axe 4b de rotation sensiblement fixe. Grâce à la présence du palier à roulement 23 , le diamètre sur lequel la lèvre du joint d' étanchéité 24 s' appuie est relativement peu excentré par rapport à la partie cylindrique 35 d' emmanchement du joint d'étanchéité 24. Ainsi, le j oint à lèvre et le palier à roulement correspondant 38, peuvent être d'un diamètre supérieur à l' encombrement radial du moyen de fixation 9 de l' amortisseur de couple 5 sur le vilebrequin 2. L' encombrement radial du moyen de fixation 9 est défini par le cercle circonscrit aux têtes des vis de fixation 12. Cela permet d'utiliser pour l' entraînement de l' amortisseur de couple 5 l'espace radial situé à l' extérieur des vis de fixation 12 et dans une même zone axiale que les vis de fixation 12. Grâce à la présence du palier à roulement 23, l' élément d' entraînement 19 possède des cannelures 30 situées sensiblement dans le même plan radial que le moyen de fixation 9.The sealing gasket 24 of the embodiment is fitted into the cylindrical portion 35, integral with the body of the gearbox 3, with respect to which the primary shaft 4 and the clutch housing 13 have an axis. 4b substantially fixed rotation. Due to the presence of the rolling bearing 23, the diameter on which the lip of the seal 24 bears is relatively eccentric with respect to the cylindrical portion 35 of fitting of the seal 24. Thus, the The lip seal and the corresponding rolling bearing 38 may be larger than the radial dimensions of the fastening means 9 of the torque damper 5 on the crankshaft 2. The radial size of the fastening means 9 is defined by the circle circumscribing the heads of the fixing screws 12. This makes it possible to use, for the drive of the torque damper 5, the radial space located outside the fastening screws 12 and in the same axial zone as the fastening screws 12. Due to the presence of the rolling bearing 23, the driving element 19 has splines 30 located substantially in the same radial plane as the fixing means 9.
Le couvercle interne 25 présente également une forme en symétrie de révolution autour de l' axe de l' arbre primaire 4 et est fixé
de manière étanche par collage ou par soudure sur un diamètre intérieur de la portion support 28 de la première partie 20 de l' élément d' entraînement 19. Le couvercle interne 25 coupe transversalement l' axe et obture l' ouverture délimitée par le diamètre intérieur du disque annulaire 20a de la première partie 20.The inner lid 25 also has a symmetrical shape of revolution around the axis of the primary shaft 4 and is fixed sealingly or by welding on an inner diameter of the support portion 28 of the first portion 20 of the drive member 19. The inner cover 25 crosses the axis transversely and closes the opening defined by the inner diameter of the annular disc 20a of the first part 20.
L'huile de lubrification du dispositif d' embrayage 6 est maintenue dans un espace clos délimité par la succession des éléments suivants, étanches l'un par rapport à l' autre : le corps de la boîte de vitesses 3, le couvercle d' embrayage 22, la bague extérieure 33, le joint d'étanchéité 24, la bague intérieure 34, la portion support 28 de la première partie 20, et le couvercle interne 25.The lubricating oil of the clutch device 6 is maintained in an enclosed space delimited by the succession of the following elements, sealed with respect to each other: the body of the gearbox 3, the clutch cover 22, the outer ring 33, the seal 24, the inner ring 34, the support portion 28 of the first portion 20, and the inner cover 25.
Le couvercle intérieur 25 assure principalement la fonction d' étanchéité de l'huile d' embrayage par rapport à l' extérieur de la boîte de vitesses. Il n' est soumis à aucun couple et son épaisseur peut être réduite. Il présente une proéminence centrale pénétrant à l' intérieur du moyen de fixation 9 sur le vilebrequin 2. Ainsi l' extrémité 4a de l' arbre primaire 4 arrive sensiblement dans un même plan radial que le moyen de fixation 9 sur le vilebrequin 2.The inner cover 25 mainly provides the sealing function of the clutch oil relative to the outside of the gearbox. It is not subjected to any torque and its thickness can be reduced. It has a penetrating central prominence inside the fastening means 9 on the crankshaft 2. Thus the end 4a of the primary shaft 4 arrives substantially in the same radial plane as the fastening means 9 on the crankshaft 2.
L'interpénétration de l' arbre primaire 4 et du vilebrequin 2 est un des avantages que le joint d' étanchéité 24 de grand diamètre permet d' obtenir grâce à la présence du palier à roulement 23. Cet avantage est particulièrement intéressant dans le cas non représenté sur la figure, où la boîte de vitesses présente deux arbres primaires coaxiaux entraînés chacun par deux dispositifs d' embrayage similaires à celui décrit. Les dispositifs à embrayages multiples occupent généralement une distance axiale plus importante que les embrayages simples. L' interpénétration de l' arbre primaire jusque dans un même plan radial que le moyen de fixation 9 de l' amortisseur de couple 5 sur le
vilebrequin 2 permet d' optimiser l'encombrement global du bloc moteur.The interpenetration of the primary shaft 4 and the crankshaft 2 is one of the advantages that the large diameter seal 24 makes it possible to obtain thanks to the presence of the rolling bearing 23. This advantage is particularly advantageous in the non shown in the figure, wherein the gearbox has two coaxial primary shafts each driven by two clutch devices similar to that described. Multi-clutch devices generally have a greater axial distance than single clutches. The interpenetration of the primary shaft into a same radial plane as the fastening means 9 of the torque damper 5 on the Crankshaft 2 optimizes the overall size of the engine block.
Le mode de réalisation décrit présente une portion de support 28 intégrée à la première partie 20. Un autre mode de réalisation consisterait en ce que la bague intérieure 34 soit en appui sur une partie cylindrique de la deuxième partie 21 , et en ce que les défauts de mésalignement entre l' axe 2b du vilebrequin 2 et l' axe 4b de l' arbre primaire 4 soient encaissés par un autre moyen que celui décrit, tel que par exemple la souplesse du couvercle d' embrayage 22.
The described embodiment has a support portion 28 integrated with the first part 20. Another embodiment would consist in that the inner ring 34 bears on a cylindrical part of the second part 21, and that the defects of misalignment between the axis 2b of the crankshaft 2 and the axis 4b of the primary shaft 4 are concealed by means other than that described, such as for example the flexibility of the clutch cover 22.
Claims
REVENDICATIONS
1 -Dispositif d'étanchéité et de transmission de couple entre un dispositif d' embrayage (6) et un amortisseur de couple (5) pour moteur de véhicule automobile, comprenant un élément d' entraînement ( 19) en rotation relié au dispositif d' embrayage (6) et à l' amortisseur de couple (5), ainsi qu'un couvercle d' embrayage (22) relié de manière étanche à un carter d' embrayage (3), et traversé par l' élément d' entraînement ( 19), un joint (24) assurant l' étanchéité entre le couvercle d' embrayage (22) et l' élément d' entraînement ( 19), le couvercle d' embrayage (22) et l'élément d' entraînement ( 19) sont montés à rotation l'un par rapport à l' autre grâce à un palier à roulement (23), caractérisé par le fait que le palier comprend une bague extérieure (33), intégrée de manière étanche au couvercle d' embrayage (22), et une bague intérieure (34) montée de manière étanche sur l' élément d' entraînement (19).Sealing and torque transmission device between a clutch device (6) and a motor vehicle motor vehicle torque damper (5), comprising a rotational drive element (19) connected to the device. clutch (6) and the torque damper (5) and a clutch cover (22) sealingly connected to a clutch housing (3) and traversed by the driving element (5). 19), a seal (24) sealing between the clutch cover (22) and the driving member (19), the clutch cover (22) and the driving member (19). are rotatably mounted relative to one another by means of a rolling bearing (23), characterized in that the bearing comprises an outer ring (33) sealingly integrated with the clutch cover (22). and an inner ring (34) sealingly mounted on the drive member (19).
2-Dispositif selon la revendication 1 dans lequel les bagues (33, 34) du palier (33) sont en tôles embouties.2-Device according to claim 1 wherein the rings (33, 34) of the bearing (33) are pressed sheets.
3-Dispositif selon la revendication 1 ou 2, dans lequel le joint d' étanchéité (24) est monté sur une partie cylindrique (35) de la bague extérieure (33) et assure l' étanchéité entre les deux bagues (33, 34) du palier (23), et dans lequel le roulement (38) est situé axialement entre le dispositif d' embrayage (6) et le joint d' étanchéité (24).3-Device according to claim 1 or 2, wherein the seal (24) is mounted on a cylindrical portion (35) of the outer ring (33) and seals between the two rings (33, 34). of the bearing (23), and wherein the bearing (38) is located axially between the clutch device (6) and the seal (24).
4-Dispositif selon l'une quelconque des revendication précédentes, comprenant un couvercle intérieur (25) fixé de manière étanche sur la portion de support (28) de l'élément d' entraînement ( 19) sur laquelle est montée la bague intérieure (34).
5-Dispositif selon l'une des revendications précédentes, dans lequel l' élément d' entraînement ( 19) comprend une première partie (20) reliée au dispositif d' embrayage (6) et une deuxième partie (21 ) reliée à l' amortisseur de couple (5), les deux parties étant solidarisées en rotation par des crans (29, 32) de formes conjuguées.4-Device according to any one of the preceding claims, comprising an inner cover (25) sealingly attached to the support portion (28) of the drive member (19) on which is mounted the inner ring (34). ). 5-Device according to one of the preceding claims, wherein the drive element (19) comprises a first portion (20) connected to the clutch device (6) and a second portion (21) connected to the damper torque (5), the two parts being secured in rotation by notches (29, 32) of conjugate forms.
6-Dispositif selon les revendications 2 et 5 prises dans leur ensemble, dans lequel la première partie (20) de l' élément d' entraînement ( 19) comprend la portion de support (28).6-Device according to claims 2 and 5 taken together, wherein the first portion (20) of the drive member (19) comprises the support portion (28).
7-Moteur de véhicule automobile équipé d'un dispositif d' embrayage (6), d'un vilebrequin (2), et d'un amortisseur de couple (5) entraîné en rotation par le vilebrequin (2) grâce à un moyen de fixation (9) de l' amortisseur de couple (5) sur le vilebrequin (2), et comprenant un dispositif d' étanchéité et de transmission de couple selon l'une des revendications précédentes, dans lequel le joint d' étanchéité (24) présente un diamètre supérieur au moyen de fixation (9) sur le vilebrequin (2).7-Motor vehicle engine equipped with a clutch device (6), a crankshaft (2), and a torque damper (5) rotated by the crankshaft (2) through a means of fixing (9) of the shock absorber (5) on the crankshaft (2), and comprising a sealing and torque transmission device according to one of the preceding claims, wherein the seal (24) has a diameter greater than the fastening means (9) on the crankshaft (2).
8-Moteur selon la revendication 7, dans lequel l' élément d' entraînement ( 19) comprend des cannelures (30), entraînées par l' amortisseur de couple (5), situées au même niveau axial, et entourant le moyen de fixation (9) sur le vilebrequin (2).8-motor according to claim 7, wherein the driving element (19) comprises splines (30), driven by the torque damper (5), located at the same axial level, and surrounding the fixing means ( 9) on the crankshaft (2).
9-Moteur selon la revendication 7 ou 8, dans lequel le dispositif d' étanchéité et de transmission de couple présente une proéminence centrale pénétrant à l' intérieur du moyen de fixation (9) sur le vilebrequin (2), et le dispositif d' embrayage présente une extrémité au même niveau axial que le moyen de fixation (9) sur le vilebrequin (2).9-motor according to claim 7 or 8, wherein the sealing device and torque transmission has a central prominence penetrating inside the fastening means (9) on the crankshaft (2), and the device of clutch has an end at the same axial level as the fastening means (9) on the crankshaft (2).
10-Moteur selon l'une des revendications 7 à 9, caractérisé par le fait que l' embrayage est un embrayage multiple.
10-motor according to one of claims 7 to 9, characterized in that the clutch is a multiple clutch.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0505614A FR2886697B1 (en) | 2005-06-03 | 2005-06-03 | SEALING DEVICE FOR CLUTCH COVER |
FR0505614 | 2005-06-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006129042A2 true WO2006129042A2 (en) | 2006-12-07 |
WO2006129042A3 WO2006129042A3 (en) | 2007-02-01 |
Family
ID=35589549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2006/050502 WO2006129042A2 (en) | 2005-06-03 | 2006-06-01 | Sealing device for clutch cover |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2886697B1 (en) |
WO (1) | WO2006129042A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009043719A1 (en) * | 2007-10-04 | 2009-04-09 | Schaeffler Kg | Cover, particularly a clutch cover and clutch arrangement having the cover |
CN109154380A (en) * | 2016-05-27 | 2019-01-04 | 日本电产株式会社 | actuator |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1174633A2 (en) * | 2000-07-17 | 2002-01-23 | Mannesmann Sachs Aktiengesellschaft | Multiple clutch device combined with a torsional vibration damper arrangement and/or an electrical machine |
EP1471288A2 (en) * | 2003-04-25 | 2004-10-27 | JATCO Ltd | Lubrication control apparatus and method for automatic transmission |
EP1610017A1 (en) * | 2004-06-21 | 2005-12-28 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Torque transmitting apparatus and transmission comprising the same |
-
2005
- 2005-06-03 FR FR0505614A patent/FR2886697B1/en not_active Expired - Fee Related
-
2006
- 2006-06-01 WO PCT/FR2006/050502 patent/WO2006129042A2/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1174633A2 (en) * | 2000-07-17 | 2002-01-23 | Mannesmann Sachs Aktiengesellschaft | Multiple clutch device combined with a torsional vibration damper arrangement and/or an electrical machine |
EP1471288A2 (en) * | 2003-04-25 | 2004-10-27 | JATCO Ltd | Lubrication control apparatus and method for automatic transmission |
EP1610017A1 (en) * | 2004-06-21 | 2005-12-28 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Torque transmitting apparatus and transmission comprising the same |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009043719A1 (en) * | 2007-10-04 | 2009-04-09 | Schaeffler Kg | Cover, particularly a clutch cover and clutch arrangement having the cover |
CN109154380A (en) * | 2016-05-27 | 2019-01-04 | 日本电产株式会社 | actuator |
Also Published As
Publication number | Publication date |
---|---|
WO2006129042A3 (en) | 2007-02-01 |
FR2886697B1 (en) | 2009-01-09 |
FR2886697A1 (en) | 2006-12-08 |
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