WO1996030663A1 - Hydrokinetic coupling device, particularly for motor vehicles - Google Patents

Hydrokinetic coupling device, particularly for motor vehicles Download PDF

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Publication number
WO1996030663A1
WO1996030663A1 PCT/FR1996/000465 FR9600465W WO9630663A1 WO 1996030663 A1 WO1996030663 A1 WO 1996030663A1 FR 9600465 W FR9600465 W FR 9600465W WO 9630663 A1 WO9630663 A1 WO 9630663A1
Authority
WO
WIPO (PCT)
Prior art keywords
hub
web
flange
coupling device
transverse wall
Prior art date
Application number
PCT/FR1996/000465
Other languages
French (fr)
Inventor
Daniel Maingaud
Rabah Arhab
Alain Lemaire
Original Assignee
Valeo
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 Valeo filed Critical Valeo
Priority to JP8529015A priority Critical patent/JPH10501608A/en
Priority to DE19680288T priority patent/DE19680288T1/en
Publication of WO1996030663A1 publication Critical patent/WO1996030663A1/en
Priority to KR1019960706802A priority patent/KR970703496A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/129—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or workpieces
    • 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
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/064—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable
    • F16D1/068—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving gluing, welding or the like
    • 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
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • 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
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
    • F16H2045/0278—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch comprising only two co-acting friction surfaces

Definitions

  • Hydrokinetic coupling device in particular for a motor vehicle
  • the present invention relates generally to hydrokinetic coupling devices, in particular for a motor vehicle, of the type comprising a casing provided with a transverse wall capable of being linked in rotation to a driving shaft, a turbine wheel secured to 'a metal hub, suitable for being linked in rotation to a driven shaft.
  • a hydrokinetic coupling device is described for example in document WO-A-94/07058.
  • a locking clutch intervenes between said turbine wheel and said transverse wall of the casing and the hub is in one piece with a metal hub veil extending transversely and serving for fixing the turbine wheel.
  • This solution is relatively expensive because this one-piece part is conditioned as a function of the hardness which the hub must have for its connection in rotation to the driven shaft.
  • the object of the present invention is to overcome this drawback.
  • a hydrokinetic coupling device of the above-mentioned type is characterized in that the metal hub cover is fixed to the metal hub by friction welding.
  • the hub veil can be obtained by fine cutting with extrusions for fixing in the manner of riveting the turbine wheel and optionally a veil belonging to the locking clutch.
  • This hub cover is preferably made of sheet metal with a high elastic limit.
  • the hub itself has the desired hardness for sliding along the driven shaft. It is advantageously pretreated, for example a steel with a Vickers hardness of 253 to 330 comprising carbon, silicon, magnesium, sulfur, phosphorus, magnesium and vanadium, the sulfur and phosphorus content being less than 0.04%.
  • this hub does not lose its hardness.
  • friction welding consists, under pressure, of making the veil rotatable, for example with respect to the hub, so that an increase in temperature is obtained and from a given temperature, when the temperature of the metal is close to the melting temperature, an instantaneous compression is carried out leading to welding.
  • the moving part is made to rotate at 2500 revolutions per minute relative to the fixed part by exerting a pressure of 20 to 30 bars, then the rotation is stopped abruptly for 0.1 seconds and a pressure of 60 to 100 bars is exerted. for 2 seconds. This leads to a reduction in the thickness of the hub web. Of course it depends on the applications.
  • the given temperature is for example 200 ° lower than the melting temperature.
  • this welding is equivalent allurgically to forging carried out at a temperature of the wave of 1200 to 1500 ° due to the instantaneous compression.
  • This embodiment is economical.
  • the hub can be made of sintered material and the web of sheet metal.
  • the hub may be of tubular shape and the hub web may have a centrally oriented flange intended to come into contact with the relevant axial end of the hub. This is where welding takes place.
  • the hub cover is in the form of a flange and it is at its central opening that welding is carried out with the hub of tubular shape.
  • the hub may have a flange provided at its base with a groove.
  • the hub cover is for example in the form of clean flange to cooperate with the relevant face of the hub flange.
  • a part of the burrs is housed in the groove of the flange so that, unlike the other embodiments, it is not necessary to finally pin the grooves of the hub.
  • - Figure 2 is a partial view showing a notch, for rotational connection with the disc, formed in the guide washer;
  • - Figure 3 is a view of the hub of Figure 1 according to the invention before pinning of its grooves;
  • FIG. 4 is an enlarged view of part of Figure 3 showing the burrs resulting from friction welding;
  • FIG. 5 and 6 are views similar to Figure 3
  • FIG. 7 is an enlarged view of part of the hub flange with its groove for receiving burrs resulting from friction welding;
  • FIG 8 is a partial view similar to Figure 1 without the turbine wheel and its hub showing other means for connecting the piston in rotation with the transverse part of the casing of the hydrokinetic coupling device.
  • a hydrokinetic coupling device 1 for a motor vehicle of the type comprising a casing 2 provided with a transverse wall 6, suitable for being linked in rotation to a driving shaft, a turbine wheel 10 secured to a metal hub 18, suitable for being linked in rotation to a driven shaft 17, a central thrust ring 336 secured in rotation of the transverse wall 6 of the casing 2 and axially interposed between the said transverse wall 6 and the hub 2, and a locking clutch 4 acting between the said turbine wheel 10 and the said transverse wall 6 of the casing 2.
  • the clutch 4 comprises a sail 60 secured to the turbine wheel 10, a guide washer 40 coupled to the sail 60, elastic members 50 acting circumferentially between the guide washer 40 and the sail 60, a disc 62 linked in rotation to the guide washer 40, with axial mobility, by means of a cooperative connection of forms 480, 267 of the tenon-mortise type, friction linings 24 arranged on either side of the disc 62, a piston 21 mounted axially movable along of the thrust ring 336 and suitable for coming to tighten the friction linings 24 and the disc 62 between itself and the transverse wall 6 of the casing 2, and rotational connection means 523, 111 intervening between the piston 21 and the transverse wall 6 of the casing 2.
  • Said connecting means comprise a connecting piece 522 interposed axially between the piston 21 and the transverse wall 6 of the casing 2, said connecting piece 522 being integral with the transverse wall 6 of the housing 2.
  • the parts of the hydrokinetic coupling device are mainly metallic with the exception of the friction linings 24 and the seals.
  • the parts of the locking clutch 4 are metallic with the exception of said friction linings 24, and it is the same for the casing 2, the turbine wheel 10 and the ring 336, the disc 62 and the piston 21.
  • the piston 21 has stampings 111 directed towards the transverse wall 6 of the casing 2 and having lateral edges 115, while the connecting piece 522 comprises at its internal periphery lugs 523 suitable for coming into engagement each with one at minus the side edges 115 of the stamped 111.
  • the connecting means comprise a part 622 fixed to the transverse wall 6 of the casing 2 while being attached to the latter.
  • the piston 21 then has locally bosses and tangential elastic tongues 623 connecting the piston 21 to the part 622.
  • tongues 623 are provided, said tongues being distributed circularly in a regular manner.
  • the tongues 623 are fixed by riveting at 625 to the part 622 and at their other end to fixing means 624 implanted in favor of the abovementioned bosses of the piston 21.
  • These fastening means 624 comprise two parts, namely a first part, which, in advance, is subject to the tongues 623, on the side thereof opposite the piston 21, and a second part which, in order to come into engagement with the first part , only requires intervention on one side of the piston.
  • the first part of the fastening means 624 comprises a rod subject to the tongues 623 by force engagement of this rod in the corresponding bore thereof.
  • the second part consists of a ring set on the stem of the first part.
  • connection means comprise pins carried by the piston and each engaged in an opening of a part fixed to the wall 6 of the casing.
  • the casing 2 of annular shape comprises a first shell 5 and a second shell 7 assembled together in leaktight manner, here by welding.
  • the shell 5 has the aforementioned transverse wall 6 forming the front face of the hydrokinetic coupling device 5, while the other shell 7 is shaped, in a manner known per se and as visible for example in the document US-A-5 119 911, to form an impeller impeller facing the turbine wheel 10 also provided with blades.
  • the turbine and impeller wheels here belong to a torque converter 3.
  • the turbine wheel 10 is driven by the impeller wheel, thanks to the circulation of fluid contained in the casing 2 and that, after starting the vehicle, the locking clutch 4 allows, to avoid phenomena sliding between the turbine and impeller wheels, a connection of the driven shaft connected to the turbine wheel, with the driving shaft connected to the transverse wall 6 of the shell 5.
  • the locking clutch 4 intervenes between the turbine wheel 10 and the transverse wall 6. It slides by its piston 21, shaped as a hub at its internal periphery for this purpose, on the thrust ring 336 secured to the wall 6, here by welding.
  • the driven shaft 17 is centrally hollow, while the push ring 336 has at its end adjacent to the wall 6 transverse grooves, as in the document WO-A-
  • the piston defines a chamber 23 closed by the wall 6 and a chamber 22 delimited by the turbine wheel 10.
  • a seal is mounted on the ring 336 which has the aforementioned grooves for circulation of the oil passing through the central bore of the shaft 17 and accessing the chamber 23 via said grooves.
  • the metal hub 18 has, at one of its axial ends (closest to the wall 6), a metal transverse hub web 330 on which the turbine wheel 10 and the web 60 are fixed. Parts 10 and 60 are arranged on either side of the hub cover 330.
  • these fasteners are produced by riveting.
  • the veil 330 here metallic, present, in one piece, the first series of rivets 333 turned axially towards the wheel 10 and a second series of rivets 332 turned axially towards the piston 21 and the wall 6. These rivets are produced by extrusion from the web 330 .
  • the hub cover 330 is produced by fine cutting with a press and is preferably made of sheet metal with a high elastic limit. This is made possible because, according to the invention, the metal hub cover 330 is fixed to the metal hub 18 by friction welding 70.
  • This welding is carried out by keeping one part (hub 18 or veil 330) fixed relative to the other, by rotating the other part relative to the fixed part and this by exerting pressure.
  • the moving part is rotated at 2500 revolutions per minute relative to the fixed part by exerting a pressure of 20 to 30 bars.
  • the rotation of the movable part leads to heating of the parts at the level of the contact zone between the web 330 and the hub 18. From a determined temperature close to the melting temperature, for example 200 ° below the melting temperature, an instantaneous compression is carried out between the two parts (instantaneous increase in pressure) which leads to welding of the parts with the appearance of burrs 71 (FIG. 3) due to the creep of the material. Then we remove the burrs.
  • the instantaneous compression is carried out with pressures of 60 to 100 bars, for example for two seconds and the moving part is suddenly stopped for 0.5 second before to carry out instant compression without rotation of the moving part.
  • the hub 18 can be pretreated and have a desired hardness (greater than that of the hub veil 330)
  • the hub can be steel comprising carbon, silicon, vanadium, magnesium, sulfur, phosphorus, the content sulfur and phosphorus being less than 0.04, while its Vickers hardness is in the range of 253 to 330.
  • burrs 71 are removed and a broaching is carried out to form the internal grooves of the hub 18 for connection in rotation with the driven shaft 17.
  • welding is metallurgically equivalent to forging carried out at a temperature of the order of 1200 to 1500 °.
  • the rivets 332 alternate circumferentially with the rivets 333.
  • the web 60 is extended radially in the direction of the axis of the assembly by a flange 262 fixed at its internal periphery by the rivets 332 to the web 330.
  • This flange 262 is provided with a plurality of openings, one of which is visible in the upper part of FIG. 1, making it possible to lighten the veil 60 and to facilitate the circulation of the oil.
  • This veil 60 has an annular holding portion 361 for internally retaining the elastic members 50, here coil springs shown in dotted lines in the upper part of FIG. 1 for better clarity.
  • This veil 60 also has support portions 365 for the circumferential ends of the springs 50. More specifically, as in document WO-A-94/07058, these support portions 365 are formed by means of support punctures , of sinuous shape, extending from the internal periphery to the external periphery of the holding portion 361 of the web 60.
  • These punctures are generally V-shaped and have an axial orientation portion which is connected by a rounded area to an external peripheral annular rim 368 of axial orientation, which has said holding portion.
  • the axial orientation portion of the puncture is connected by a rounded portion to an inclined portion itself connecting to the internal periphery of the holding portion 361.
  • the guide washer 40 is shaped to externally retain the springs 50. It has an annular shape, like the web 60, being metallic like the web 60.
  • the guide washer has in section a square shape with a portion (or flange) 342 of axial orientation directed towards the turbine wheel 10 and a portion of transverse orientation 341 directed towards the axis of the assembly.
  • This guide washer 40, as well as the holding portion 361 of the web 60, is located at the outer periphery of the turbine wheel 10 and of the shell 5.
  • the guide washer has latching tabs 243 formed by the interruption of said flange 342, said tabs 243 being provided at their free end with a transverse flange 244 directed towards the axis of the assembly.
  • This rim 244 is able to cooperate with the edge of the peripheral rim 368 of the notched web 60 to engage the edges 244 of the legs 243 and thus block the legs in rotation.
  • the guide washer 40 is coupled to the web 60 and a unitary manipulable and transportable assembly is formed, comprising the web 60 - the guide washer 40 and the springs 50, which are just fixed on the hub web 330.
  • the tabs 243 can be rigid and the flange 244 can be produced in the end by being folded down in the direction of the axis of the assembly, in contact with the edge of the peripheral flange 368, by folding, using a tool, hot with for example high frequency heating.
  • the legs 243 are short and are of reduced thickness, here progressively, to facilitate their folding.
  • the tabs 243 remain constantly engaged with the notched rim 368 in particular to avoid any interference with the turbine wheel.
  • the disc 62 has at its external periphery legs 267 of axial orientation penetrating into notches 480 (FIG. 2) formed at the internal periphery of the transverse portion 341 of the guide washer 40.
  • the support piece 140 follows the shape of the guide washer and therefore has, in section, a square shape, one of the edges of which is extended by a rounding.
  • the part 140 is very robust and is located opposite the bearing portion 365 of the web (lower part of FIG. 1).
  • the friction linings 24 are here glued to the disc 62 and extend on either side thereof.
  • the face of the transverse portion 6 facing the washer 24 is machined to form a friction surface for the washer 24 concerned.
  • the washers 24 can be fixed respectively to the piston 21 and to the wall 6.
  • the piston 21 extends radially below the legs 267 and has in its middle part stampings 111, which stiffen the piston 21 .
  • stampings 111 are formed by non-traversing cutting using a tool, leading to material repulsion.
  • the lateral edges 115 of the stampings 111 are therefore of good precision.
  • the connecting piece 522 is fixed by riveting to the wall 6.
  • the rivets 524 are formed by extruding the wall 6 which is metallic just like the piece 522 and the piston 521.
  • the connecting piece 522 is of annular shape and comprises a peripheral portion of annular shape traversed, by means of openings, by the fixing rivets 524.
  • This annular portion comprises at its internal periphery, tabs 523 of curved shape.
  • These legs 523 are turned towards the turbine wheel 10 and have, overall, in section the shape of a C.
  • connection means 111, 523 are located on a circumference of diameter greater than that of the push ring 336.
  • This ring 336 carries at its free end a friction washer 331.
  • This ring 336 is centrally hollow and has, for example, a change in diameter which is not visible for centering the washer 331.
  • This interposition washer can be secured to the hub 18 by means of pins penetrating into openings made in the hub web 330. The ends of the pins are crushed so that the washer 331, here made of plastic, is linked, for example by ultrasonic welding, to the hub web 330.
  • the oil can access the chamber 23 to pressurize or depressurize the latter and the washer 331 limits the movement of the piston 21.
  • the piston 21 clamps the linings 24 between itself and the wall 6 so that the movement is transmitted directly from the shell 5 to the hub 18 through the clutch 4 and in particular the washer. guide 40, the springs 50 and the web 60 thereof. There is therefore filtration of the vibrations and formation of a two-sided clutch enabling a significant torque to be transmitted.
  • the chamber 23 When disengaging the locking clutch 4, the chamber 23 is pressurized and the piston 21 moves in the direction of the washer 331 to release the linings 24.
  • the disc 62 can then slide axially thanks to its legs 267 of axial orientation engaging with the notches 480.
  • the disc 62 therefore remains permanently in engagement with the guide washer 40 and does not risk escaping from the latter.
  • the hub web 330 has a centrally oriented annular flange centrally and the hub 18 is of tubular shape.
  • Friction welding 70 consists of facing the flange with the axial end concerned of the hub 18.
  • the hub disc 330 (FIG. 5) can be devoid of flange and consist of a flange.
  • the hub 180 is fixed by friction welding 70 to the hub plate 1330 by contacting the end. relevant axial of the hub 180 with the inner periphery of the web 1330 and this at the central opening thereof.
  • the hub 280 has a flange 281 and the hub web 2330 is in the form of a flange as in FIG. 5.
  • Friction welding 170 is carried out by contact of the web 2330 with the face of the flange 281 facing the web 2330.
  • the flange 281 has at its root an annular groove 282 so that during friction welding the burrs are received in the groove 282 so that there is no need to eliminate the burrs at this level.
  • the hub 280 is therefore provided in advance with grooves for its rotational setting on the driven shaft 17.
  • the hub 280 centers the web 2330.
  • the hub 280 is harder than the associated web and can for example be nickel-plated for its rotational connection by spline with the driven shaft 17.
  • the veil of Figure 6 may be provided with a collar as in Figure 3.
  • the present invention is not limited to the embodiment described.
  • the hub cover can be provided with holes so that the fixing of the turbine wheel 10 and of the cover 60 (of the flange 262) takes place by conventional riveting.
  • the guide washer can have the shape of that described in FIG. 19 of the above-mentioned document WO-A-94/07058, the supports of the springs being in one piece with the guide washer 40.
  • the elastic members 50 can be mounted in pairs and the thrust ring 336 can be secured by riveting to the central part of the wall 6.
  • the locking clutch 4 can have another constitution and be devoid of web attached to the hub web of the turbine.
  • no locking clutch is provided.
  • the hub veil being able to be, depending on the aluminum applications, and the steel hub.
  • the hub may be made of sintered material so that the value of the pressure and of the instantaneous compression varies according to the applications.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

A hydrokinetic coupling device (1) comprising a housing (2) with a transverse wall (6) rotationally connectable to a drive shaft, and a turbine rotor (10) secured to a metal hub (18, 180, 280) rotationally connectable to a driven shaft (17), wherein said hub (18, 180, 280) is secured to a metal hub plate (330, 1330, 2330) to which the turbine rotor (10) is attached, and the metal hub plate (330, 1330, 2330) is attached to the metal hub (18, 180, 280) by friction welding. The device is useful in motor vehicles.

Description

Appareil d'accouplement hydrocinetique, notamment pour véhicule automobile Hydrokinetic coupling device, in particular for a motor vehicle
La présente invention concerne d'une manière générale les appareils d'accouplement hydrocinétique, notamment pour véhicule automobile, du genre comportant un carter doté d'une paroi transversale, propre à être liée en rotation à un arbre menant, une roue de turbine solidaire d'un moyeu métallique, propre à être lié en rotation à un arbre mené. Un tel appareil d'accouplement hydrocinétique est décrit par exemple dans le document WO-A-94/07058.The present invention relates generally to hydrokinetic coupling devices, in particular for a motor vehicle, of the type comprising a casing provided with a transverse wall capable of being linked in rotation to a driving shaft, a turbine wheel secured to 'a metal hub, suitable for being linked in rotation to a driven shaft. Such a hydrokinetic coupling device is described for example in document WO-A-94/07058.
Dans ce document un embrayage de verrouillage intervient entre ladite roue de turbine et ladite paroi transversale du carter et le moyeu est d'un seul tenant avec un voile de moyeu métallique s'étendant transversalement et servant à la fixation de la roue de turbine.In this document, a locking clutch intervenes between said turbine wheel and said transverse wall of the casing and the hub is in one piece with a metal hub veil extending transversely and serving for fixing the turbine wheel.
Cette solution est relativement coûteuse car cette pièce monobloc est conditionnée en fonction de la dureté que doit présenter le moyeu pour sa liaison en rotation à l'arbre mené. La présente invention a pour objet de pallier cet inconvénient.This solution is relatively expensive because this one-piece part is conditioned as a function of the hardness which the hub must have for its connection in rotation to the driven shaft. The object of the present invention is to overcome this drawback.
Suivant l'invention un appareil d'accouplement hydrocinétique du type sus-indiqué est caractérisé en ce que le voile de moyeu métallique est fixé au moyeu métallique par soudage à friction.According to the invention a hydrokinetic coupling device of the above-mentioned type is characterized in that the metal hub cover is fixed to the metal hub by friction welding.
Ainsi le voile de moyeu peut être obtenu par découpage fin avec des extrusions pour la fixation à la manière d'un rivetage de la roue de turbine et éventuellement d'un voile appartenant à l'embrayage de verrouillage. Ce voile de moyeu est en tôle de préférence à haute limite élastique.Thus the hub veil can be obtained by fine cutting with extrusions for fixing in the manner of riveting the turbine wheel and optionally a veil belonging to the locking clutch. This hub cover is preferably made of sheet metal with a high elastic limit.
Le moyeu proprement dit a la dureté voulue pour son coulissement le long de l'arbre mené. Il est avantageusement prétraité, par exemple un acier d'une dureté Vickers de 253 à 330 comprenant du carbone, du silicium, du magnésium, du soufre, du phosphore du magnésium et du vanadium, la teneur en soufre et en phosphore étant inférieure à 0,04%.The hub itself has the desired hardness for sliding along the driven shaft. It is advantageously pretreated, for example a steel with a Vickers hardness of 253 to 330 comprising carbon, silicon, magnesium, sulfur, phosphorus, magnesium and vanadium, the sulfur and phosphorus content being less than 0.04%.
Grâce à l'invention ce moyeu ne perd pas sa dureté. En effet le soudage par friction consiste, sous pression, à rendre mobile en rotation par exemple le voile par rapport au moyeu, en sorte que l'on obtient une augmentation de la température et à partir d'une température donnée, lorsque la température du métal est voisine de la température de fusion, on effectue une compression instantanée conduisant au soudage. Par exemple on fait tourner la pièce mobile à 2500 tours par minute par rapport à la pièce fixe en exerçant une pression de 20 à 30 bars, puis on arrête la rotation brusquement pendant 0,1 seconde et on exerce une pression de 60 à 100 bars pendant 2 secondes. Cela conduit à diminuer l'épaisseur du voile de moyeu. Bien entendu cela dépend des applications.Thanks to the invention, this hub does not lose its hardness. In fact, friction welding consists, under pressure, of making the veil rotatable, for example with respect to the hub, so that an increase in temperature is obtained and from a given temperature, when the temperature of the metal is close to the melting temperature, an instantaneous compression is carried out leading to welding. For example, the moving part is made to rotate at 2500 revolutions per minute relative to the fixed part by exerting a pressure of 20 to 30 bars, then the rotation is stopped abruptly for 0.1 seconds and a pressure of 60 to 100 bars is exerted. for 2 seconds. This leads to a reduction in the thickness of the hub web. Of course it depends on the applications.
Ici la température donnée est par exemple inférieure de 200° à la température de fusion. Ainsi ce soudage est équivalent mé allurgiquement à un forgeage effectué à une température de l'onde de 1200 à 1500° du fait de la compression instantanée. Ce mode de réalisation est économique.Here the given temperature is for example 200 ° lower than the melting temperature. Thus, this welding is equivalent allurgically to forging carried out at a temperature of the wave of 1200 to 1500 ° due to the instantaneous compression. This embodiment is economical.
On appréciera qu'on obtient une soudure très homogène, et que l'on peut souder des matériaux hétérogènes, le voile pouvant par exemple en aluminium et le moyeu en acier prétraité. En variante le moyeu peut être en matériau fritte et le voile en tôle.It will be appreciated that a very homogeneous weld is obtained, and that heterogeneous materials can be welded, the veil being able for example from aluminum and the hub from pretreated steel. As a variant, the hub can be made of sintered material and the web of sheet metal.
Le moyeu peut être de forme tubulaire et le voile de moyeu peut présenter centralement une collerette d'orientation axiale destinée à venir en contact avec l'extrémité axiale concernée du moyeu. C'est à ce niveau qu'on effectue la soudure. En variante le voile de moyeu est en forme de flasque et c'est au niveau de son ouverture centrale qu'on effectue le soudage avec le moyeu de forme tubulaire.The hub may be of tubular shape and the hub web may have a centrally oriented flange intended to come into contact with the relevant axial end of the hub. This is where welding takes place. As a variant, the hub cover is in the form of a flange and it is at its central opening that welding is carried out with the hub of tubular shape.
En variante le moyeu peut présenter une bride dotée à sa base d'une gorge. Le voile de moyeu est par exemple en forme de flasque propre à coopérer avec la face concernée de la bride du moyeu.As a variant, the hub may have a flange provided at its base with a groove. The hub cover is for example in the form of clean flange to cooperate with the relevant face of the hub flange.
Dans ce cas une partie des bavures se loge dans la gorge de la bride en sorte que, contrairement aux autres modes de réalisation, il n'est pas nécessaire de brocher en final les cannelures du moyeu.In this case, a part of the burrs is housed in the groove of the flange so that, unlike the other embodiments, it is not necessary to finally pin the grooves of the hub.
Les avantages de toutes ces dispositions apparaîtront à la lumière de la description qui va suivre en regard des dessins annexés dans lesquels : - la figure 1 est une vue partielle en coupe axiale d'un appareil d'accouplement hydrocinétique selon l'invention;The advantages of all these arrangements will appear in the light of the description which will follow with reference to the appended drawings in which: - Figure 1 is a partial view in axial section of a hydrokinetic coupling device according to the invention;
- la figure 2 est une vue partielle montrant une encoche, de liaison en rotation avec le disque, formée dans la rondelle de guidage ; - la figure 3 est une vue du moyeu de la figure 1 selon l'invention avant brochage de ses cannelures ;- Figure 2 is a partial view showing a notch, for rotational connection with the disc, formed in the guide washer; - Figure 3 is a view of the hub of Figure 1 according to the invention before pinning of its grooves;
- la figure 4 est une vue à plus grande échelle d'une partie de la figure 3 montrant les bavures résultant du soudage à friction ; - les figures 5 et 6 sont des vues analogues à la figure 3- Figure 4 is an enlarged view of part of Figure 3 showing the burrs resulting from friction welding; - Figures 5 and 6 are views similar to Figure 3
- la figure 7 est une vue à plus grande échelle d'une partie de la bride du moyeu avec sa gorge de réception des bavures résultant du soudage à friction ; - la figure 8 est une vue partielle analogue à la figure 1 sans la roue de turbine et son moyeu montrant d'autres moyens de liaison en rotation du piston avec la partie transversale du carter de l'appareil d'accouplement hydrocinétique.- Figure 7 is an enlarged view of part of the hub flange with its groove for receiving burrs resulting from friction welding; - Figure 8 is a partial view similar to Figure 1 without the turbine wheel and its hub showing other means for connecting the piston in rotation with the transverse part of the casing of the hydrokinetic coupling device.
Dans les figures est illustré un appareil d'accouplement hydrocinétique 1 pour véhicule automobile, du genre comportant un carter 2 doté d'une paroi transversale 6, propre à être liée en rotation à un arbre menant, une roue de turbine 10 solidaire d'un moyeu métallique 18, propre à être lié en rotation à un arbre mené 17, une bague centrale de poussée 336 solidaire en rotation de la paroi transversale 6 du carter 2 et interposée axialement entre ladite paroi transversale 6 et le moyeu 2, et un embrayage de verrouillage 4 intervenant entre ladite roue de turbine 10 et ladite paroi transversale 6 du carter 2. L'embrayage 4 comporte un voile 60 solidaire de la roue de turbine 10, une rondelle de guidage 40 attelée au voile 60, des organes élastiques 50 intervenant circonférentiellement entre la rondelle de guidage 40 et le voile 60, un disque 62 lié en rotation à la rondelle de guidage 40, avec une mobilité axiale, par l'intermédiaire d'une liaison à coopération de formes 480, 267 du type tenon-mortaise, des garnitures de frottement 24 disposées de part et d'autre du disque 62, un piston 21 monté mobile axialement le long de la bague de poussée 336 et propre à venir serrer les garnitures de frottement 24 et le disque 62 entre lui-même et la paroi transversale 6 du carter 2, et des moyens de liaison en rotation 523, 111 intervenant entre le piston 21 et la paroi transversale 6 du carter 2. Lesdits moyens de liaison comportent une pièce de liaison 522 interposée axialement entre le piston 21 et la paroi transversale 6 du carter 2, ladite pièce de liaison 522 étant solidaire de la paroi transversale 6 du carter 2.In the figures is illustrated a hydrokinetic coupling device 1 for a motor vehicle, of the type comprising a casing 2 provided with a transverse wall 6, suitable for being linked in rotation to a driving shaft, a turbine wheel 10 secured to a metal hub 18, suitable for being linked in rotation to a driven shaft 17, a central thrust ring 336 secured in rotation of the transverse wall 6 of the casing 2 and axially interposed between the said transverse wall 6 and the hub 2, and a locking clutch 4 acting between the said turbine wheel 10 and the said transverse wall 6 of the casing 2. The clutch 4 comprises a sail 60 secured to the turbine wheel 10, a guide washer 40 coupled to the sail 60, elastic members 50 acting circumferentially between the guide washer 40 and the sail 60, a disc 62 linked in rotation to the guide washer 40, with axial mobility, by means of a cooperative connection of forms 480, 267 of the tenon-mortise type, friction linings 24 arranged on either side of the disc 62, a piston 21 mounted axially movable along of the thrust ring 336 and suitable for coming to tighten the friction linings 24 and the disc 62 between itself and the transverse wall 6 of the casing 2, and rotational connection means 523, 111 intervening between the piston 21 and the transverse wall 6 of the casing 2. Said connecting means comprise a connecting piece 522 interposed axially between the piston 21 and the transverse wall 6 of the casing 2, said connecting piece 522 being integral with the transverse wall 6 of the housing 2.
Ainsi qu'on le sait les pièces de l'appareil d'accouplement hydrocinétique sont en majeure partie métalliques à l'exception des garnitures de frottement 24 et des joints d'étanchéité. Ainsi les pièces de l'embrayage de verrouillage 4 sont métalliques à l'exception desdites garnitures de frottement 24, et il en est de même du carter 2, de la roue de turbine 10 et de la bague 336, du disque 62 et du piston 21.As is known, the parts of the hydrokinetic coupling device are mainly metallic with the exception of the friction linings 24 and the seals. Thus the parts of the locking clutch 4 are metallic with the exception of said friction linings 24, and it is the same for the casing 2, the turbine wheel 10 and the ring 336, the disc 62 and the piston 21.
Ici le piston 21 présente des emboutis 111 dirigés vers la paroi transversale 6 du carter 2 et présentant des bords latéraux 115, tandis que la pièce de liaison 522 comporte à sa périphérie interne des pattes 523 propres à venir en prise chacune avec l'un au moins des bords latéraux 115 des emboutis 111. En variante (figure 8) les moyens de liaison comportent une pièce 622 fixée à la paroi transversale 6 du carter 2 en étant adossée à celle-ci. Le piston 21 présente alors localement des bossages et des languettes élastiques tangentielles 623 relient le piston 21 à la pièce 622.Here the piston 21 has stampings 111 directed towards the transverse wall 6 of the casing 2 and having lateral edges 115, while the connecting piece 522 comprises at its internal periphery lugs 523 suitable for coming into engagement each with one at minus the side edges 115 of the stamped 111. As a variant (FIG. 8) the connecting means comprise a part 622 fixed to the transverse wall 6 of the casing 2 while being attached to the latter. The piston 21 then has locally bosses and tangential elastic tongues 623 connecting the piston 21 to the part 622.
En pratique plusieurs languettes 623 sont prévues, lesdites languettes étant réparties circulairement de manière régulière.In practice, several tongues 623 are provided, said tongues being distributed circularly in a regular manner.
A l'une de leur extrémité, les languettes 623 sont fixées par rivetage en 625 à la pièce 622 et à leur autre extrémité à des moyens de fixation 624 implantés à la faveur des bossages précités du piston 21.At one of their ends, the tongues 623 are fixed by riveting at 625 to the part 622 and at their other end to fixing means 624 implanted in favor of the abovementioned bosses of the piston 21.
Ces moyens de fixation 624 comportent deux parties à savoir une première partie, qui, par avance, est assujettie aux languettes 623, du côté de celles-ci opposée au piston 21, et une deuxième partie qui, pour venir en prise avec la première partie, ne nécessite de n'intervenir que d'un côté du piston.These fastening means 624 comprise two parts, namely a first part, which, in advance, is subject to the tongues 623, on the side thereof opposite the piston 21, and a second part which, in order to come into engagement with the first part , only requires intervention on one side of the piston.
Par exemple la première partie des moyens de fixation 624 comporte une tige assujettie aux languettes 623 par engagement à force de cette tige dans le perçage correspondant de celle-ci. La deuxième partie consiste en une bague sertie sur la tige de la première partie.For example, the first part of the fastening means 624 comprises a rod subject to the tongues 623 by force engagement of this rod in the corresponding bore thereof. The second part consists of a ring set on the stem of the first part.
En variante les moyens de liaison comportent des pions portés par le piston et engagés chacun dans une ouverture d'une pièce fixée sur la paroi 6 du carter. Ici par simplicité, les éléments communs à l'invention et à ceux de la susmentionnée demande WO-A-94/07058 (figure 44) sont affectés des mêmes références.As a variant, the connection means comprise pins carried by the piston and each engaged in an opening of a part fixed to the wall 6 of the casing. Here for simplicity, the elements common to the invention and to those of the above-mentioned application WO-A-94/07058 (FIG. 44) are given the same references.
Ainsi, à la figure 1, le carter 2, de forme annulaire, comporte une première coquille 5 et une deuxième coquille 7 assemblées entre elles de manière étanche, ici par soudage.Thus, in FIG. 1, the casing 2, of annular shape, comprises a first shell 5 and a second shell 7 assembled together in leaktight manner, here by welding.
La coquille 5 présente la paroi transversale 6 précitée formant la face frontale de l'appareil d'accouplement hydrocinétique 5, tandis que l'autre coquille 7 est conformée, de manière connue en soi et tel que visible par exemple dans le document US-A-5 119 911, pour former une roue d'impulseur à aubes faisant face à la roue de turbine 10 également dotée d'aubes.The shell 5 has the aforementioned transverse wall 6 forming the front face of the hydrokinetic coupling device 5, while the other shell 7 is shaped, in a manner known per se and as visible for example in the document US-A-5 119 911, to form an impeller impeller facing the turbine wheel 10 also provided with blades.
Les roues de turbine et d'impulseur appartiennent ici à un convertisseur de couple 3.The turbine and impeller wheels here belong to a torque converter 3.
Pour mémoire on rappellera que la roue de turbine 10 est entraînée par la roue d'impulseur, grâce à la circulation de fluide contenu dans le carter 2 et que, après démarrage du véhicule, l'embrayage de verrouillage 4 permet, pour éviter les phénomènes de glissement entre les roues de turbine et d'impulseur, une solidarisation de l'arbre mené relié à la roue de turbine, avec l'arbre menant relié à la paroi transversale 6 de la coquille 5.As a reminder, it will be recalled that the turbine wheel 10 is driven by the impeller wheel, thanks to the circulation of fluid contained in the casing 2 and that, after starting the vehicle, the locking clutch 4 allows, to avoid phenomena sliding between the turbine and impeller wheels, a connection of the driven shaft connected to the turbine wheel, with the driving shaft connected to the transverse wall 6 of the shell 5.
L'embrayage de verrouillage 4 intervient entre la roue de turbine 10 et la paroi transversale 6. Il coulisse par son piston 21, conformé en moyeu à sa périphérie interne à cet effet, sur la bague de poussée 336 solidaire de la paroi 6, ici par soudage. L'arbre mené 17 est centralement creux, tandis que la bague de poussée 336 présente à son extrémité adjacente à la paroi 6 des rainures transversales, comme dans le document WO-A-The locking clutch 4 intervenes between the turbine wheel 10 and the transverse wall 6. It slides by its piston 21, shaped as a hub at its internal periphery for this purpose, on the thrust ring 336 secured to the wall 6, here by welding. The driven shaft 17 is centrally hollow, while the push ring 336 has at its end adjacent to the wall 6 transverse grooves, as in the document WO-A-
94/07058.94/07058.
Le piston délimite une chambre 23 fermée par la paroi 6 et une chambre 22 délimitée par la roue de turbine 10.The piston defines a chamber 23 closed by the wall 6 and a chamber 22 delimited by the turbine wheel 10.
Bien entendu un joint d'étanchéité est monté sur la bague 336 qui présente les rainures précitées pour circulation de l'huile passant par l'alésage central de l'arbre 17 et accédant à la chambre 23 par l'intermédiaire desdites rainures.Of course a seal is mounted on the ring 336 which has the aforementioned grooves for circulation of the oil passing through the central bore of the shaft 17 and accessing the chamber 23 via said grooves.
Le moyeu métallique 18 présente, à l'une de ses extrémités axiales (la plus proche de la paroi 6) , un voile de moyeu transversal métallique 330 sur lequel est fixée la roue de turbine 10 et le voile 60. Les pièces 10 et 60 sont disposées de part et d'autre du voile de moyeu 330.The metal hub 18 has, at one of its axial ends (closest to the wall 6), a metal transverse hub web 330 on which the turbine wheel 10 and the web 60 are fixed. Parts 10 and 60 are arranged on either side of the hub cover 330.
Plus précisément, selon une caractéristique de l'invention, ces fixations sont réalisées par rivetage . Le voile 330, ici métallique, présente, d'un seul tenant tme première série de rivets 333 tournés axialement vers la roue 10 et une seconde série de rivets 332 tournés axialement vers le piston 21 et la paroi 6. Ces rivets sont réalisés par extrusion à partir du voile 330.More specifically, according to a characteristic of the invention, these fasteners are produced by riveting. The veil 330, here metallic, present, in one piece, the first series of rivets 333 turned axially towards the wheel 10 and a second series of rivets 332 turned axially towards the piston 21 and the wall 6. These rivets are produced by extrusion from the web 330 .
Ainsi, on économise la présence de rivets et les fixations de la roue de turbine 10 et du voile 60, de part et d'autre du voile 330, sont robustes puisqu'une seule pièce (le voile 60 ou la roue 10), est fixée au voile 330, par respectivement les rivets 332, 333.This saves the presence of rivets and the fastenings of the turbine wheel 10 and of the web 60, on either side of the web 330, are robust since a single piece (the web 60 or the wheel 10) is fixed to the veil 330, by the rivets 332, 333 respectively.
Ici le voile de moyeu 330 est réalisé par découpage fin à la presse et est en tôle de préférence à haute limite élastique. Ceci est rendu possible car, suivant l'invention, le voile de moyeu métallique 330 est fixé au moyeu métallique 18 par soudage à friction 70.Here the hub cover 330 is produced by fine cutting with a press and is preferably made of sheet metal with a high elastic limit. This is made possible because, according to the invention, the metal hub cover 330 is fixed to the metal hub 18 by friction welding 70.
Ce soudage est réalisé en maintenant une partie (moyeu 18 ou voile 330) fixe par rapport à l'autre, en faisant tourner 1 'autre partie par rapport à la partie fixe et ce en exerçant une pression. Par exemple on fait tourner la pièce mobile à 2500 tours par minute par rapport à la pièce fixe en exerçant une pression de 20 à 30 bars.This welding is carried out by keeping one part (hub 18 or veil 330) fixed relative to the other, by rotating the other part relative to the fixed part and this by exerting pressure. For example, the moving part is rotated at 2500 revolutions per minute relative to the fixed part by exerting a pressure of 20 to 30 bars.
La rotation de la partie mobile conduit à un échauffement des pièces au niveau de la zone de contact entre le voile 330 et le moyeu 18. A partir d'une température déterminée voisine de la température de fusion, par exemple 200° en dessous de la température de fusion, on effectue une compression instantanée entre les deux pièces (augmentation instantanée de la pression) ce qui conduit à un soudage des pièces avec apparition de bavures 71 (figure 3) dues au fluage de la matière. Après on élimine les bavures.The rotation of the movable part leads to heating of the parts at the level of the contact zone between the web 330 and the hub 18. From a determined temperature close to the melting temperature, for example 200 ° below the melting temperature, an instantaneous compression is carried out between the two parts (instantaneous increase in pressure) which leads to welding of the parts with the appearance of burrs 71 (FIG. 3) due to the creep of the material. Then we remove the burrs.
Ici la compression instantanée est effectuée avec des pression de 60 à 100 bars, par exemple pendant deux secondes et on arrête brusquement la pièce mobile pendant 0,5 seconde avant de procéder à la compression instantanée sans rotation de la pièce mobile.Here the instantaneous compression is carried out with pressures of 60 to 100 bars, for example for two seconds and the moving part is suddenly stopped for 0.5 second before to carry out instant compression without rotation of the moving part.
Grâce à l'invention on obtient une soudure de structure homogène sans trace visible. Ainsi le moyeu 18 peut être prétraité et avoir une dureté voulue (supérieure à celle du voile de moyeu 330) Par exemple le moyeu peut être acier comprenant du carbone, du silicium, du vanadium, du magnésium, du soufre, du phosphore, la teneur en soufre et en phosphore étant inférieure à 0,04, tandis que sa dureté Vickers est de l'ordre de 253 à 330.Thanks to the invention, a weld of homogeneous structure is obtained without visible trace. Thus the hub 18 can be pretreated and have a desired hardness (greater than that of the hub veil 330) For example the hub can be steel comprising carbon, silicon, vanadium, magnesium, sulfur, phosphorus, the content sulfur and phosphorus being less than 0.04, while its Vickers hardness is in the range of 253 to 330.
Après le soudage on enlève les bavures 71 et on effectue un brochage pour formation des cannelures internes du moyeu 18 pour liaison en rotation avec l'arbre mené 17.After welding, the burrs 71 are removed and a broaching is carried out to form the internal grooves of the hub 18 for connection in rotation with the driven shaft 17.
On notera que le soudage est équivalent métallurgiquement à un forgeage effectué à une température de l'ordre de 1200 à 1500°.It will be noted that welding is metallurgically equivalent to forging carried out at a temperature of the order of 1200 to 1500 °.
Ici les rivets 332 alternent circonférentiellement avec les rivets 333. Pour ce faire le voile 60 est prolongé radialement en direction de l'axe de l'ensemble par un flasque 262 fixé à sa périphérie interne par les rivets 332 au voile 330.Here the rivets 332 alternate circumferentially with the rivets 333. To do this, the web 60 is extended radially in the direction of the axis of the assembly by a flange 262 fixed at its internal periphery by the rivets 332 to the web 330.
Ce flasque 262 est doté d'une pluralité d'ouvertures, dont une est visible dans la partie haute de la figure 1, permettant d'alléger le voile 60 et de faciliter la circulation de l'huile.This flange 262 is provided with a plurality of openings, one of which is visible in the upper part of FIG. 1, making it possible to lighten the veil 60 and to facilitate the circulation of the oil.
Ce voile 60 comporte une portion de maintien 361 annulaire pour retenir intérieurement les organes élastiques 50, ici des ressorts à boudins représentés en pointillés à la partie haute de la figure 1 pour une meilleure clarté. Ce voile 60 présente également des portions d'appui 365 pour les extrémités circonférentielles des ressorts 50. Plus précisément, comme dans le document WO-A-94/07058, ces portions d'appui 365 sont formées à la faveur de crevés d'appui, de forme sinueuse, s 'étendant de la périphérie interne à la périphérie externe de la portion de maintien 361 du voile 60. Ces crevés ont globalement une forme en V et comportent une portion d'orientation axiale se raccordant par une zone arrondie à un rebord annulaire périphérique externe 368 d'orientation axiale, que présente ladite portion de maintien. La portion d'orientation axiale du crevé se raccorde par un arrondi à une portion inclinée elle-même se raccordant à la périphérie interne de la portion de maintien 361.This veil 60 has an annular holding portion 361 for internally retaining the elastic members 50, here coil springs shown in dotted lines in the upper part of FIG. 1 for better clarity. This veil 60 also has support portions 365 for the circumferential ends of the springs 50. More specifically, as in document WO-A-94/07058, these support portions 365 are formed by means of support punctures , of sinuous shape, extending from the internal periphery to the external periphery of the holding portion 361 of the web 60. These punctures are generally V-shaped and have an axial orientation portion which is connected by a rounded area to an external peripheral annular rim 368 of axial orientation, which has said holding portion. The axial orientation portion of the puncture is connected by a rounded portion to an inclined portion itself connecting to the internal periphery of the holding portion 361.
La rondelle de guidage 40 est conformée pour retenir extérieurement les ressorts 50. Elle a une forme annulaire, tout comme le voile 60, en étant métallique comme le voile 60. Ici, la rondelle de guidage a en section une forme d'équerre avec une portion (ou rebord) 342 d'orientation axiale dirigée vers la roue de turbine 10 et une portion d'orientation transversale 341 dirigée vers l'axe de l'ensemble. Cette rondelle de guidage 40, ainsi que la portion de maintien 361 du voile 60, est implantée à la périphérie externe de la roue de turbine 10 et de la coquille 5.The guide washer 40 is shaped to externally retain the springs 50. It has an annular shape, like the web 60, being metallic like the web 60. Here, the guide washer has in section a square shape with a portion (or flange) 342 of axial orientation directed towards the turbine wheel 10 and a portion of transverse orientation 341 directed towards the axis of the assembly. This guide washer 40, as well as the holding portion 361 of the web 60, is located at the outer periphery of the turbine wheel 10 and of the shell 5.
Comme dans le document WO-A-94/07058, la rondelle de guidage présente des pattes d'encliquetage 243 formées à la faveur d'une interruption dudit rebord 342, lesdites pattes 243 étant dotées à leur extrémité libre d'un rebord transversal 244 dirigé vers l'axe de l'ensemble. Ce rebord 244 est propre à coopérer avec la tranche du rebord périphérique 368 du voile 60 entaillé pour venir en prise avec les rebords 244 des pattes 243 et bloquer ainsi en rotation les pattes.As in document WO-A-94/07058, the guide washer has latching tabs 243 formed by the interruption of said flange 342, said tabs 243 being provided at their free end with a transverse flange 244 directed towards the axis of the assembly. This rim 244 is able to cooperate with the edge of the peripheral rim 368 of the notched web 60 to engage the edges 244 of the legs 243 and thus block the legs in rotation.
Ainsi la rondelle de guidage 40 est attelée au voile 60 et il est formé un ensemble unitaire manipulable et transportable, comprenant le voile 60 - la rondelle de guidage 40 et les ressorts 50, que l'on vient fixer sur le voile de moyeu 330. En variante, les pattes 243 peuvent être rigides et le rebord 244 peut être réalisé en finale en étant rabattu en direction de l'axe de l'ensemble, au contact de la tranche du rebord périphérique 368, par pliage, à l'aide d'un outil, à chaud avec par exemple chauffage à haute fréquence. Comme visible sur ces figures les pattes 243 sont courtes et sont d'épaisseur réduite, ici de manière progressive, pour faciliter leur pliage.Thus, the guide washer 40 is coupled to the web 60 and a unitary manipulable and transportable assembly is formed, comprising the web 60 - the guide washer 40 and the springs 50, which are just fixed on the hub web 330. As a variant, the tabs 243 can be rigid and the flange 244 can be produced in the end by being folded down in the direction of the axis of the assembly, in contact with the edge of the peripheral flange 368, by folding, using a tool, hot with for example high frequency heating. As can be seen in these figures, the legs 243 are short and are of reduced thickness, here progressively, to facilitate their folding.
Grâce à cette disposition les pattes 243 demeurent constamment en prise avec le rebord 368 entaillé pour notamment éviter toute interférence avec la roue de turbine.Thanks to this arrangement, the tabs 243 remain constantly engaged with the notched rim 368 in particular to avoid any interference with the turbine wheel.
Le disque 62 présente à sa périphérie externe des pattes 267 d'orientation axiale pénétrant dans des encoches 480 (figure 2) formées à la périphérie interne de la portion transversale 341 de la rondelle de guidage 40.The disc 62 has at its external periphery legs 267 of axial orientation penetrating into notches 480 (FIG. 2) formed at the internal periphery of the transverse portion 341 of the guide washer 40.
Ainsi il est créé une liaison du type tenon-mortaise et le disque 62 est lié en rotation à la rondelle de guidage 40 tout en étant mobile axialement par rapport à celle-ci.Thus, a tenon-mortise type connection is created and the disc 62 is linked in rotation to the guide washer 40 while being axially movable relative to the latter.
Ceci est rendu possible grâce au fait que les appuis pour les extrémités circonférentielles des ressorts 50 sont formés à la faveur de pièces 140 rapportées localement par soudage sur la rondelle de guidage 40, à l'intérieur de celle-ci.This is made possible by the fact that the supports for the circumferential ends of the springs 50 are formed by means of parts 140 added locally by welding on the guide washer 40, inside the latter.
La pièce d'appui 140 épouse la forme de la rondelle de guidage et a donc en section une forme d'équerre dont l'un des bords est prolongé par un arrondi.The support piece 140 follows the shape of the guide washer and therefore has, in section, a square shape, one of the edges of which is extended by a rounding.
La pièce 140 est très robuste et est située en vis-à-vis de la portion d'appui 365 du voile (partie basse de la figure 1) .The part 140 is very robust and is located opposite the bearing portion 365 of the web (lower part of FIG. 1).
Les garnitures de frottement 24 sont ici collées sur le disque 62 et s'étendent de part et d'autre de celui-ci. La face de la portion transversale 6 en vis-à-vis de la rondelle 24 est usinée pour former une portée de frottement pour la rondelle 24 concernée.The friction linings 24 are here glued to the disc 62 and extend on either side thereof. The face of the transverse portion 6 facing the washer 24 is machined to form a friction surface for the washer 24 concerned.
Bien entendu, en variante, les rondelles 24 peuvent être fixées respectivement sur le piston 21 et sur la paroi 6. Le piston 21 s'étend radialement en dessous des pattes 267 et présente dans sa partie médiane des emboutis 111, qui rigidifient le piston 21.Of course, as a variant, the washers 24 can be fixed respectively to the piston 21 and to the wall 6. The piston 21 extends radially below the legs 267 and has in its middle part stampings 111, which stiffen the piston 21 .
Ces emboutis 111 sont formés par découpage non traversant à l'aide d'un outil, conduisant à un repoussement de matière. Les bords latéraux 115 des emboutis 111 sont donc d'une bonne précision.These stampings 111 are formed by non-traversing cutting using a tool, leading to material repulsion. The lateral edges 115 of the stampings 111 are therefore of good precision.
La pièce de liaison 522 est fixée par rivetage à la paroi 6. Les rivets 524 sont formés par extrusion de la paroi 6 qui est métallique tout comme la pièce 522 et le piston 521.The connecting piece 522 is fixed by riveting to the wall 6. The rivets 524 are formed by extruding the wall 6 which is metallic just like the piece 522 and the piston 521.
La pièce de liaison 522 est de forme annulaire et comporte une partie périphérique de forme annulaire traversée, à la faveur d'ouvertures, par les rivets de fixation 524. Cette partie annulaire comporte à sa périphérie interne, des pattes 523 de forme courbe. Ces pattes 523 sont tournées vers la roue de turbine 10 et ont globalement en section la forme d'un C.The connecting piece 522 is of annular shape and comprises a peripheral portion of annular shape traversed, by means of openings, by the fixing rivets 524. This annular portion comprises at its internal periphery, tabs 523 of curved shape. These legs 523 are turned towards the turbine wheel 10 and have, overall, in section the shape of a C.
On appréciera que cette forme se marie bien avec celle des emboutis 111 qui, en section, ont une forme pointue à sommet arrondi tourné vers la paroi 6. Ces pattes 523 sont peu agressives et sont propres à coopérer par leur tranche avec l'un au moins des bords latéraux 115 des emboutis 111. Chaque patte 523 coopère avec l'un des bords latéraux 115 d'un embouti 111, en sorte que deux pattes 523 sont associées à chaque embouti 111. La longueur circonférentielle des pattes 523 est inférieure à celle séparant deux emboutis 111 successifs.It will be appreciated that this shape goes well with that of the stamped 111 which, in section, have a pointed shape with a rounded top facing the wall 6. These tabs 523 are not very aggressive and are able to cooperate by their edges with one at less of the lateral edges 115 of the stamps 111. Each lug 523 cooperates with one of the lateral edges 115 of a stamping 111, so that two lugs 523 are associated with each stamp 111. The circumferential length of the lugs 523 is less than that separating two successive stampings 111.
On appréciera qu'un bon coulissement du piston 21 peut avoir lieu du fait de la configuration des moyens de liaison en rotation 111, 523. En outre, ces moyens de liaison 523, 111 sont implantés sur une circonférence de diamètre supérieur à celui de la bague de poussée 336.It will be appreciated that good sliding of the piston 21 can take place due to the configuration of the rotational connection means 111, 523. In addition, these connection means 523, 111 are located on a circumference of diameter greater than that of the push ring 336.
Cette bague 336 porte à son extrémité libre une rondelle 331 de frottement. Cette bague 336 est centralement creuse et présente par exemple un changement de diamètre non visible pour centrage de la rondelle 331.This ring 336 carries at its free end a friction washer 331. This ring 336 is centrally hollow and has, for example, a change in diameter which is not visible for centering the washer 331.
Cette rondelle d'interposition, comme montrée à la figure 1, peut être solidarisée au moyeu 18 à l'aide de pions pénétrant dans des ouvertures pratiquées dans le voile de moyeu 330. Les extrémités des pions sont écrasées en sorte que la rondelle 331, ici en matière plastique, est liée, par exemple par soudage à ultrasons, au voile de moyeu 330.This interposition washer, as shown in FIG. 1, can be secured to the hub 18 by means of pins penetrating into openings made in the hub web 330. The ends of the pins are crushed so that the washer 331, here made of plastic, is linked, for example by ultrasonic welding, to the hub web 330.
Ainsi, en fonctionnement, l'huile peut accéder à la chambre 23 pour pressuriser ou dépressuriser celle-ci et la rondelle 331 limite le déplacement du piston 21.Thus, in operation, the oil can access the chamber 23 to pressurize or depressurize the latter and the washer 331 limits the movement of the piston 21.
Lorsque l'embrayage de verrouillage est engagé, le piston 21 serre les garnitures 24 entre lui-même et la paroi 6 en sorte que le mouvement est transmis directement de la coquille 5 au moyeu 18 à travers l'embrayage 4 et notamment la rondelle de guidage 40, les ressorts 50 et le voile 60 de celui-ci. Il y a donc filtration des vibrations et formation d'un embrayage bi- face permettant de transmettre un couple important.When the locking clutch is engaged, the piston 21 clamps the linings 24 between itself and the wall 6 so that the movement is transmitted directly from the shell 5 to the hub 18 through the clutch 4 and in particular the washer. guide 40, the springs 50 and the web 60 thereof. There is therefore filtration of the vibrations and formation of a two-sided clutch enabling a significant torque to be transmitted.
Lors du désengagement de l'embrayage de verrouillage 4 on pressurise la chambre 23 et le piston 21 se déplace en direction de la rondelle 331 pour libérer les garnitures 24.When disengaging the locking clutch 4, the chamber 23 is pressurized and the piston 21 moves in the direction of the washer 331 to release the linings 24.
Le disque 62 peut, alors coulisser axialement grâce à ses pattes 267 d'orientation axiale en prise avec les encoches 480.The disc 62 can then slide axially thanks to its legs 267 of axial orientation engaging with the notches 480.
Le disque 62 reste donc en permanence en prise avec la rondelle de guidage 40 et ne risque pas de s'échapper de celle- ci.The disc 62 therefore remains permanently in engagement with the guide washer 40 and does not risk escaping from the latter.
Dans les figures 3 et 4, le voile de moyeu 330 présente centralement une collerette annulaire d'orientation axiale et le moyeu 18 est de forme tubulaire. Le soudage par friction 70 consiste à affronter la collerette avec l'extrémité axiale concernée du moyeu 18.In FIGS. 3 and 4, the hub web 330 has a centrally oriented annular flange centrally and the hub 18 is of tubular shape. Friction welding 70 consists of facing the flange with the axial end concerned of the hub 18.
Après l'opération de soudage on effectue une élimination des bavures 71 de la figure 4, comme précité, puis on effectue un brochage pour formation des cannelures internes du moyeu 18. Bien entendu le voile de moyeu 330 (figure 5) peut être dépourvu de collerette et consister en un flasque. Dans ce cas le moyeu 180, de forme tubulaire, est fixé par soudage à friction 70 au voile moyeu 1330 par contact de l'extrémité axiale concernée du moyeu 180 avec la périphérie interne du voile 1330 et ce au niveau de l'ouverture centrale de celui-ci.After the welding operation, the burrs 71 of FIG. 4 are eliminated, as mentioned above, then a broaching is carried out to form the internal grooves of the hub 18. Of course, the hub disc 330 (FIG. 5) can be devoid of flange and consist of a flange. In this case, the hub 180, of tubular shape, is fixed by friction welding 70 to the hub plate 1330 by contacting the end. relevant axial of the hub 180 with the inner periphery of the web 1330 and this at the central opening thereof.
Comme précédemment on élimine les bavures 171 résultant du soudage à friction 70 puis on effectue un brochage comme à la figure 3.As before, the burrs 171 resulting from friction welding 70 are eliminated and a broaching is carried out as in FIG. 3.
Dans ces figures 3 et 5, les ouvertures centrales du moyeu et du voile sont en coïncidence axiale les unes avec les autres.In these figures 3 and 5, the central openings of the hub and of the web are in axial coincidence with each other.
En variante (figure 6) le moyeu 280 présente une bride 281 et le voile de moyeu 2330 est en forme de flasque comme à la figure 5.As a variant (FIG. 6) the hub 280 has a flange 281 and the hub web 2330 is in the form of a flange as in FIG. 5.
Le soudage à friction 170 est réalisé par contact du voile 2330 avec la face de la bride 281 tournée vers le voile 2330.Friction welding 170 is carried out by contact of the web 2330 with the face of the flange 281 facing the web 2330.
On notera que la bride 281 présente à sa racine une gorge annulaire 282 en sorte que lors du soudage à friction les bavures viennent se loger dans la gorge 282 en sorte qu'il n'y a pas à éliminer les bavures à ce niveau.Note that the flange 281 has at its root an annular groove 282 so that during friction welding the burrs are received in the groove 282 so that there is no need to eliminate the burrs at this level.
Le moyeu 280 est donc pourvu par avance de cannelures pour son calage en rotation sur l'arbre mené 17. Dans ce cas, le moyeu 280 centre le voile 2330. Dans tous les cas le moyeu 280 est plus dur que le voile associée et peut être par exemple nickelé pour sa liaison en rotation par cannelure avec l'arbre mené 17.The hub 280 is therefore provided in advance with grooves for its rotational setting on the driven shaft 17. In this case, the hub 280 centers the web 2330. In all cases the hub 280 is harder than the associated web and can for example be nickel-plated for its rotational connection by spline with the driven shaft 17.
Bien entendu le voile de la figure 6 peut être pourvu d'une collerette comme à la figure 3. Bien entendu la présente invention n'est pas limitée à l'exemple de réalisation décrit. En particulier, comme visible dans les figures 5 et 6, le voile de moyeu peut être doté de trous en sorte que la fixation de la roue de turbine 10 et du voile 60 (du flasque 262) a lieu par rivetage classique. La rondelle de guidage peut avoir la forme de celle décrite à la figure 19 du susmentionné document WO-A-94/07058, les appuis des ressorts étant d'un seul tenant avec la rondelle de guidage 40. Bien entendu les organes élastiques 50 peuvent être montés par paire et la bague de poussée 336 peut être solidarisée par rivetage à la partie centrale de la paroi 6.Of course the veil of Figure 6 may be provided with a collar as in Figure 3. Of course the present invention is not limited to the embodiment described. In particular, as can be seen in FIGS. 5 and 6, the hub cover can be provided with holes so that the fixing of the turbine wheel 10 and of the cover 60 (of the flange 262) takes place by conventional riveting. The guide washer can have the shape of that described in FIG. 19 of the above-mentioned document WO-A-94/07058, the supports of the springs being in one piece with the guide washer 40. Of course, the elastic members 50 can be mounted in pairs and the thrust ring 336 can be secured by riveting to the central part of the wall 6.
D'une manière générale, l'embrayage de verrouillage 4 peut avoir une autre constitution et être dépourvu de voile fixé au voile de moyeu de la turbine.In general, the locking clutch 4 can have another constitution and be devoid of web attached to the hub web of the turbine.
En variante aucun embrayage de verrouillage n'est prévu.As a variant, no locking clutch is provided.
Grâce à l'invention, on peut souder des pièces métalliques hétérogènes, le voile de moyeu pouvant être selon les applications en aluminium et le moyeu en acier. En variante le moyeu peut être en matériau fritte en sorte que la valeur de la pression et de la compression instantanée varient selon les applications. Thanks to the invention, it is possible to weld heterogeneous metal parts, the hub veil being able to be, depending on the aluminum applications, and the steel hub. As a variant, the hub may be made of sintered material so that the value of the pressure and of the instantaneous compression varies according to the applications.

Claims

REVENDICATIONS
1- Appareil d'accouplement hydrocinétique (1), notamment pour véhicule automobile, du genre comportant un carter (2) doté d'une paroi transversale (6) , propre à être lié en rotation à un arbre menant, une roue de turbine (10) solidaire d'un moyeu métallique (18,180,280), propre à être lié en rotation à un arbre mené (17), dans lequel ledit moyeu (18,180,280) est solidaire d'un voile de moyeu métallique (330,1330,2330) sur lequel est fixée la roue de turbine (10) , caractérisé en ce que le voile de moyeu métallique (330,1330,2330) est fixé au moyeu métallique (18,180,280) par soudage à friction.1- hydrokinetic coupling device (1), in particular for a motor vehicle, of the type comprising a casing (2) provided with a transverse wall (6), suitable for being linked in rotation to a driving shaft, a turbine wheel ( 10) secured to a metallic hub (18,180,280), suitable for being linked in rotation to a driven shaft (17), in which said hub (18,180,280) is secured to a metallic hub web (330,1330,2330) on which is fixed the turbine wheel (10), characterized in that the metal hub cover (330,1330,2330) is fixed to the metal hub (18,180,280) by friction welding.
2- Appareil d'accouplement selon la revendication 1, caractérisé en ce que le moyeu (18,180) a une forme tubulaire. 3- Appareil d'accouplement selon la revendication 2, caractérisé en ce que le voile de moyeu (330) présente centralement une collerette d'orientation axiale propre à venir en contact avec une extrémité axiale du moyeu (18) pour soudage à friction avec ledit moyeu (18) . 4- Appareil d'accouplement selon la revendication 2, caractérisé en ce que le voile de moyeu (180) est en forme de flasque propre à venir centralement en contact avec une extrémité axiale du moyeu (180) pour soudage à friction avec ledit moyeu (180) . 5- Appareil d'accouplement selon la revendication 1, caractérisé en ce que le moyeu (280) présente une bride (281) pour contact avec la partie centrale du voile de moyeu (2330) en forme de flasque et soudage à friction avec celui-ci.2- coupling device according to claim 1, characterized in that the hub (18,180) has a tubular shape. 3- A coupling device according to claim 2, characterized in that the hub web (330) has a centrally located axial flange suitable for coming into contact with an axial end of the hub (18) for friction welding with said hub (18). 4- coupling device according to claim 2, characterized in that the hub web (180) is in the form of a clean flange coming centrally into contact with an axial end of the hub (180) for friction welding with said hub ( 180). 5- Coupling device according to claim 1, characterized in that the hub (280) has a flange (281) for contact with the central part of the hub web (2330) in the form of a flange and friction welding therewith. this.
6- Appareil d'accouplement selon la revendication 5, caractérisé en ce que la bride (281) présente à sa racine une gorge annulaire (282) pour réception des bavures résultant du soudage à friction.6- coupling device according to claim 5, characterized in that the flange (281) has at its root an annular groove (282) for receiving burrs resulting from friction welding.
7- Appareil d'accouplement selon la revendication 1, dans lequel une bague centrale de poussée (336) solidaire en rotation de la paroi transversale (6) du carter (2) est interposée axialement entre ladite paroi transversale (6) et le moyeu (18,180,280), et dans lequel un embrayage de verrouillage (4) intervient entre ladite roue de turbine (10) et ladite paroi transversale (6) du carter (2) , ledit embrayage (4) comportant un voile (60) solidaire de la roue de turbine (10) , une rondelle de guidage (40) attelée au voile (60) , des organes élastiques (50) intervenant circonférentiellement entre la rondelle de guidage (40) et le voile (60) , un disque (62) lié en rotation à la rondelle de guidage (40) , avec une mobilité axiale, par l'intermédiaire d'une liaison à coopération de formes (480,267) du type tenon-mortaise, des garnitures de frottement (24) disposées de part et d'autre du disque (62), un piston (21) monté mobile axialement le long de la bague de poussée (336) et propre à venir serrer les garnitures de frottement (24) et le disque (62) entre lui-même et la paroi transversale (6) du carter (2), et des moyens de liaison en rotation (523,111) intervenant entre le piston (21) et la paroi transversale (6) du carter (2) , caractérisé en ce que le voile (60) est prolongé radialement en direction de l'axe de l'ensemble par un flasque7- coupling device according to claim 1, wherein a central thrust ring (336) integral in rotation of the transverse wall (6) of the casing (2) is interposed axially between said transverse wall (6) and the hub (18,180,280), and in which a locking clutch (4) intervenes between said turbine wheel (10) and said transverse wall (6) of the casing (2), said clutch (4) comprising a web (60) integral with the turbine wheel (10), a guide washer (40) coupled to the web (60), elastic members ( 50) acting circumferentially between the guide washer (40) and the web (60), a disc (62) linked in rotation to the guide washer (40), with axial mobility, by means of a connection to cooperation of forms (480, 267) of the tenon-mortise type, friction linings (24) disposed on either side of the disc (62), a piston (21) mounted axially movable along the thrust ring (336) and suitable for tightening the friction linings (24) and the disc (62) between itself and the transverse wall (6) of the housing (2), and rotational connection means (523,111) acting between the piston (21) and the transverse wall (6) of the housing (2), characterized in that the web (60) is extended radially in the direction of the axis of the assembly by a flange
(262) fixé à sa périphérie interne par rivetage à un voile de moyeu (330) solidaire du moyeu (18) , et en ce que le voile de moyeu (330) présente d'un seul tenant une première série de rivets (333) tournés vers la roue (10) et une seconde série de rivets (332) tournés vers le piston (21) pour respectivement fixation de la roue de turbine (10) et fixation du flasque (262) . (262) fixed at its internal periphery by riveting to a hub web (330) integral with the hub (18), and in that the hub web (330) has in one piece a first series of rivets (333) turned towards the wheel (10) and a second series of rivets (332) turned towards the piston (21) for respectively fixing the turbine wheel (10) and fixing the flange (262).
PCT/FR1996/000465 1994-05-16 1996-03-28 Hydrokinetic coupling device, particularly for motor vehicles WO1996030663A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8529015A JPH10501608A (en) 1995-03-31 1996-03-28 Fluid coupling device, especially automotive fluid coupling device
DE19680288T DE19680288T1 (en) 1995-03-31 1996-03-28 Hydrodynamic transmission, in particular for motor vehicles
KR1019960706802A KR970703496A (en) 1994-05-16 1996-11-29 HYDROKINETIC COUPLING DEVICE, PARTICULARLY FOR MOTOR VEHICLES

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR95/03925 1995-03-31
FR9503925A FR2732427B1 (en) 1995-03-31 1995-03-31 HYDROKINETIC COUPLING APPARATUS, PARTICULARLY FOR A MOTOR VEHICLE

Publications (1)

Publication Number Publication Date
WO1996030663A1 true WO1996030663A1 (en) 1996-10-03

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PCT/FR1996/000465 WO1996030663A1 (en) 1994-05-16 1996-03-28 Hydrokinetic coupling device, particularly for motor vehicles

Country Status (4)

Country Link
JP (1) JPH10501608A (en)
DE (1) DE19680288T1 (en)
FR (1) FR2732427B1 (en)
WO (1) WO1996030663A1 (en)

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FR2749634A1 (en) * 1996-06-10 1997-12-12 Valeo TORSION SHOCK ABSORBER FOR LOCKING CLUTCH, ESPECIALLY A MOTOR VEHICLE
FR2803645A1 (en) * 2000-01-10 2001-07-13 Luk Getriebe Systeme Gmbh Electronic device e.g. printer has portion provided at edge of three dimensional shaped ridgeline which is provided in case
DE19780417B4 (en) * 1996-05-07 2006-07-13 Valeo Hydrodynamic torque converter with a tongue driver part, in particular for motor vehicles
CN103958937A (en) * 2011-12-14 2014-07-30 株式会社艾科赛迪 Torque converter
CN105478993A (en) * 2014-09-19 2016-04-13 上海航天设备制造总厂 Bi-friction stirring welding pressing device and method used for wallboard and flange spatial curved surface
WO2017186228A1 (en) * 2016-04-27 2017-11-02 Schaeffler Technologies AG & Co. KG Shaft, method for producing the shaft, and hybrid module
US10151351B2 (en) * 2015-06-22 2018-12-11 Gm Global Technology Operations, Llc Friction weed
CN111712647A (en) * 2017-12-22 2020-09-25 法雷奥离合器公司 Disc holder for a wet clutch, wet clutch mechanism comprising such a disc holder and method for manufacturing such a disc holder

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FR2867249B1 (en) * 2004-03-02 2006-04-28 Valeo Embrayages HYDROKINETIC COUPLING APPARATUS, IN PARTICULAR FOR A MOTOR VEHICLE
DE102005015728A1 (en) * 2005-04-06 2006-10-12 Robert Bosch Gmbh Connecting device for a drive and method for producing a connecting device
DE102007009779B4 (en) 2007-02-27 2019-08-01 Wittenstein Se Rotary connection between shaft and pinion and method for their preparation
DE102008013200B4 (en) * 2008-03-07 2011-08-25 Carl Freudenberg KG, 69469 stub hub
JP5330160B2 (en) * 2009-08-31 2013-10-30 アイシン・エィ・ダブリュ工業株式会社 Turbine hub of fluid coupling and bearing structure using turbine hub
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Publication number Priority date Publication date Assignee Title
DE19780417B4 (en) * 1996-05-07 2006-07-13 Valeo Hydrodynamic torque converter with a tongue driver part, in particular for motor vehicles
FR2749634A1 (en) * 1996-06-10 1997-12-12 Valeo TORSION SHOCK ABSORBER FOR LOCKING CLUTCH, ESPECIALLY A MOTOR VEHICLE
WO1997047902A1 (en) * 1996-06-10 1997-12-18 Valeo Torsion damper for locking clutch in particular for motor vehicles
FR2803645A1 (en) * 2000-01-10 2001-07-13 Luk Getriebe Systeme Gmbh Electronic device e.g. printer has portion provided at edge of three dimensional shaped ridgeline which is provided in case
CN103958937A (en) * 2011-12-14 2014-07-30 株式会社艾科赛迪 Torque converter
CN105478993A (en) * 2014-09-19 2016-04-13 上海航天设备制造总厂 Bi-friction stirring welding pressing device and method used for wallboard and flange spatial curved surface
CN105478993B (en) * 2014-09-19 2019-07-26 上海航天设备制造总厂 For siding and flange space curved surface Bi-friction Stirring Welding pressing device and method
US10151351B2 (en) * 2015-06-22 2018-12-11 Gm Global Technology Operations, Llc Friction weed
WO2017186228A1 (en) * 2016-04-27 2017-11-02 Schaeffler Technologies AG & Co. KG Shaft, method for producing the shaft, and hybrid module
CN111712647A (en) * 2017-12-22 2020-09-25 法雷奥离合器公司 Disc holder for a wet clutch, wet clutch mechanism comprising such a disc holder and method for manufacturing such a disc holder
EP3728884B1 (en) * 2017-12-22 2023-07-12 Valeo Embrayages Wet clutch disc holder, wet clutch mechanism having such a disk holder, and method for manufacturing such disc holder

Also Published As

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JPH10501608A (en) 1998-02-10
FR2732427B1 (en) 1997-05-16
FR2732427A1 (en) 1996-10-04
DE19680288T1 (en) 1997-05-07

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