WO2000020776A1 - Double volant amortisseur, notamment pour vehicule automobile - Google Patents
Double volant amortisseur, notamment pour vehicule automobile Download PDFInfo
- Publication number
- WO2000020776A1 WO2000020776A1 PCT/FR1999/002408 FR9902408W WO0020776A1 WO 2000020776 A1 WO2000020776 A1 WO 2000020776A1 FR 9902408 W FR9902408 W FR 9902408W WO 0020776 A1 WO0020776 A1 WO 0020776A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stop
- hub
- flywheel according
- internal
- washer
- Prior art date
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
- F16F15/139—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses characterised by friction-damping means
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
- F16F15/133—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
- F16F15/134—Wound springs
- F16F15/13407—Radially mounted springs
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
- F16F15/139—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses characterised by friction-damping means
- F16F15/1397—Overload protection, i.e. means for limiting torque
Definitions
- the present invention relates to a double damping flywheel for the rotational coupling of an internal combustion engine to a transmission system, in particular intended for a motor vehicle.
- Such a double damping flywheel is described in document FR-A-2 749 904.
- a torque limiter intervenes between a plate, constituting the reaction plate of a friction clutch, and an internal hub surrounded by the reaction plate.
- the reaction plate and the hub belong to a secondary flywheel intended, via a friction face of the reaction plate, to be disengageably connected to a driven member of a transmission system; such as the input shaft of a gearbox of a motor vehicle.
- the double flywheel also includes a primary flywheel intended to be linked in rotation to a driving shaft, such as the crankshaft of an internal combustion engine of a motor vehicle.
- the secondary flywheel is rotatably mounted, via its hub, on the primary flywheel, having an element of generally transverse orientation, such as a plate, parallel to the reaction plate of the secondary flywheel.
- Elastic members intervene between one transverse element of the primary flywheel and the hub of the secondary flywheel to resiliently couple the secondary flywheel to the primary flywheel.
- the elastic members may consist of curved springs, in particular precurved, intervening circumferentially between supports integral with the primary flywheel and arms that a disc secured to the hub of the secondary flywheel has at its external periphery.
- the arms are arranged between two supports facing the primary flywheel.
- the elastic members intervene radially for the rest position of the double damping flywheel.
- the torque limiter has a friction washer provided with legs straightened outwards and passing through orifices formed in a washer with axial elasticity integral with the hub.
- the friction washer forms the side of a groove, the other side and the bottom of which belong to the outer periphery of the hub.
- the reaction plate has at its internal periphery an internal ring centered by the bottom of the throat and pinched between the sides of the throat. This arrangement is satisfactory, since it is of reduced axial size.
- the object of the present invention is to meet this wish.
- a double damping flywheel of the type indicated above is characterized in that the internal hub is shaped to delimit a cavity radially below the internal ring of the reaction plate, in that inside the cavity is housed at least one stop integral with the friction washer and offset axially in the direction of the primary flywheel relative to the friction washer, and in that, below the inner ring of the reaction plate, elastic means with action axial bear on the stop and on at least counter-stop, integral with a support piece integral with the internal hub, for tightening the ring between the sides of the groove.
- the function of the torque limiter is improved, in particular its torque transmission capacity, as well as its lifetime, since it is possible to precisely control the load exerted by the elastic means with axial action of the fact that these intervene between a stop and a counter-stop, possibly split, belonging to two separate parts.
- the support piece integral with the hub is located radially below the friction washer and therefore has a small size radially. Thanks to the cavity delimited by the internal hub, the same overall axial dimensions are preserved overall at the limiter. In practice, the axial space is reduced because no part is superimposed on the friction washer, the elastic means acting below the internal ring. In addition, there is no longer any presence of straightened legs.
- the stop (s) are housed in a cavity advantageously open axially in the direction opposite to the primary flywheel.
- the solution is therefore simple and economical, the support piece integral with the hub being secured to it by rivets forming, in one embodiment, articulation journals for the elastic members or fixing rivets for an acting disc. on the elastic organs.
- the friction washer is advantageously inclined at rest and is then straightened, its inclination decreasing after assembly, under the action of elastic means, so that the friction washer follows the shape of the ring of the reaction plate well and that the torque limiter performance is increased. The limiter can therefore transmit more torque.
- the cavity according to the invention promotes the cooling of the internal hub and therefore of the bearing means acting between the hub and a first central hub of the primary flywheel.
- the stop and the counter stop are advantageously of transverse orientation, and are offset axially with respect to each other.
- the elastic means with axial action may consist of a plurality of helical springs.
- the elastic means to axial action include a Belleville washer. It may be, for example a diaphragm, that is to say a part comprising at its external periphery a Belleville washer extended radially inwardly by a central part fragmented into lugs by slots separating two two legs.
- the elastic means consist of a Belleville washer.
- the Belleville washer or the diaphragm is in contact at its external periphery with the stop and at its internal periphery with the counter-stop.
- the life of the torque limiter can be increased, since it is less sensitive to wear than that of the prior art. Indeed, this results from the fact that the Belleville washer intervenes between two distinct parts so that it is possible to better control its characteristic curve (force exerted as a function of the deflection).
- this characteristic curve has a generally sinusoidal portion shape so that the initial load exerted by the Belleville washer is chosen beyond the maximum of the curve, that is to say for a higher deflection to that corresponding to this maximum.
- this initial charge is chosen to be close to the maximum of the characteristic curve.
- the bottom of the groove is formed by the hub which is hollowed out radially below the internal ring to form a cavity open axially in the direction opposite to the primary flywheel.
- the stop according to the invention is housed in this cavity.
- the internal hub is therefore of reduced thickness below the internal ring. More precisely, the bottom of the groove of the hub is produced by means of a bushing, the internal periphery of which serves as a centering device for the friction washer and the external periphery serving as a centering device for the internal ring.
- This friction washer is linked in rotation by cooperation of shapes to the hub.
- the stop is extended at its internal periphery by at least one lug of transverse orientation engaged in a notch made in the hub.
- At least two tabs and two notches are provided, and this, in diametrically opposite position.
- the hub is of reduced thickness below the internal ring thanks to a veil which it presents for this purpose. It is the external periphery of this veil which serves as a centering device for the reaction plate.
- the external periphery of the web is in intimate contact with an annular bearing of axial orientation connecting the external periphery of the internal ring to the lateral face of the reaction plate facing the primary flywheel. Shavings are formed by frictional contact of the web with the ring. To evacuate these shavings, notches are provided at the periphery of the veil.
- the friction washer is linked in rotation by cooperation of shapes with the counter-stop by means of its stop.
- the stop comprises for example at least one tab engaged in an associated hole formed in the counter-stop.
- the counter-stop is provided with a stamping, for example in the shape of a U, in which the tab of the stop engages.
- the solution of centering the reaction plate by a web of the hub is advantageous because it makes it possible to reduce the radial size of the fact that the hub is devoid of centering sleeve.
- the counter-stop can serve as a centering device for the friction washer. To do this, it suffices to provide the abutment of the friction washer with at least two aforementioned tabs engaged in two holes or two associated stampings formed in the counter-abutment.
- the veil can be distinct from the hub by being secured thereto for example by overmolding or crimping.
- the internal ring which can therefore be added by overmolding or crimping on the reaction plate. This makes it possible to reduce the thickness of the internal ring and therefore to reduce the axial size.
- the web or the inner ring can be assembled with the hub and the reaction plate respectively by any means.
- the internal ring is for example metallic. It is the same with the veil. These can be coated with an anti-wear layer, for example based on nickel or molybdenum. These parts can be economically made of sheet metal hardened by a quenching operation. All this increases the life of the double flywheel because the internal ring wears less than the internal ring molded with the reaction plate, for example in cast iron.
- FIG. 1 is a view in axial section of a double damping flywheel according to the invention
- Figure 2 is an enlarged view of the limiter of the lower part of Figure 1;
- FIG. 3 is a detail view illustrating, in partial section, an elastic member of the double damping flywheel;
- Figure 4 is a view along arrow 4 of Figure 1 of the hub of the secondary flywheel;
- Figure 5 is a partial view in axial section of the double damping flywheel for a second embodiment;
- Figure 6 is a view similar to Figure 5 for a third embodiment;
- Figure 7 is a view similar to Figure 1 for a fourth embodiment.
- the double damping flywheel 11 intervenes between the crankshaft of the internal combustion engine of a motor vehicle and the input member of a transmission system, namely the input shaft of the gearbox.
- This double damping flywheel here of torsion, for the coupling of an internal combustion engine to a transmission system, comprises a primary flywheel 12 and a secondary flywheel 13 coaxial mounted movable in rotation relative to each other about a common axis of axial symmetry XX against a friction device 46 with axial action and elastic damping devices 15, of generally radial orientation, distributed regularly circumferentially as described in the document FR -A-9 712 115 published under the number FR-A-2 769 062, to which reference may be made for further details.
- FR -A-9 712 115 published under the number FR-A-2 769 062
- each damping device 15 contains at least one helical spring 24 inside a housing 26 belonging to a first sub-assembly 27 provided at its external periphery with a first part d hinge 29 with a cylindrical hole 42 which defines a hinge axis YY.
- the part 29 is attached by welding to the casing 26 of tubular shape.
- the elastic damping device 15 also comprises a second sub-assembly 30 here comprising two concentric helical springs 24, 25 of different stiffness mounted on a rod 32 provided with a second articulation part 34 provided with a cylindrical bore which defines an axis of articulation ZZ.
- the springs 24, 25 bear on a piston 37 belonging to a first stop 36 located at the upper end of the rod 32 placed inside the housing 26.
- a guide ring 41 is molded onto the external periphery of the piston 37 which is secured, here by welding, to the metal rod 32.
- the spring 24 surrounds the spring 25 and the rod 32 and is supported on a second stop 38 fixed to the end 39 of the housing 26 opposite to that which carries the first articulation part 29.
- the second stop 38 is plastically deformable and comprises a bottom 51 secured, here by welding, to the lower end of the housing 26.
- the rod 32 passes through the bottom 51.
- a plastically deformable means is disposed between the bottom 51 and the spring 24. This means comprises a cup 61 with a skirt surrounding the rod 32 at a radial distance and provided with a transverse annular rim 62 on which the end of the spring 25 of lower stiffness bears.
- a guide ring 64 is placed in the volume defined by the rod 32, the bottom 51 and the cup 61.
- the cup 61 has an annular washer having in section a concave shape for support of the spring 24. It is this part which is plastically deformable.
- the other embodiments of document FR-97 12115, published under the number FR-A-2 769 062 are applicable to the present invention.
- a pin 45 is riveted to the internal periphery of the secondary flywheel 13.
- This pin 45 is installed on an internal hub 18 belonging to the secondary flywheel 13, also called second mass.
- An unreferenced bearing is interposed radially between the external periphery of the journal 45 and the cylindrical bore of the second articulation part 34.
- a journal 44 is installed at the external periphery of a transverse element 14 belonging to the primary flywheel 12, also called first mass.
- An unreferenced bearing is located between the outer periphery of the pin 44 and the hole 42 of the first articulation head 29.
- Each damping device 15 is thus mounted articulated between the primary flywheel 12 and the secondary flywheel 13 between the two axes YY and ZZ. Any relative circumferential movement between the two flywheels 12, 13 results in an elongation of each elastic damping device resulting in compression of the springs 24, 25 of radial orientation for the rest position of the double damping flywheel.
- FR-97 12115 and in particular to FIG. 1 thereof showing the compression of the springs 24, 25 with radial action.
- the secondary flywheel 13 comprises a plate 16 forming the reaction plate of a friction clutch provided with a friction disk intended to be secured in rotation to the member of transmission system input, i.e. here at the gearbox input shaft.
- the friction disc has at least one friction lining at its outer periphery.
- the friction clutch has a cover fixed by means of screws, one of which is visible at 120 in FIG. 1, to the reaction plate 16, provided for this purpose with tapped holes at its external periphery.
- This plate 16 dorsally has a friction face 17.
- the plate 16 also carries pins 121 for centering the cover.
- a diaphragm is supported on the bottom of the cover, of hollow form, for action on a pressure plate linked in rotation to the cover, and clamping of the friction lining (s) between the pressure and reaction plates.
- the clutch is engaged and the torque of the internal combustion engine is transmitted here to the input shaft of the gearbox via the friction lining (s) of the friction disc.
- the diaphragm fingers By acting on the internal ends of the diaphragm fingers, here by pushing, using a clutch release device of the manual, automatic or semi-automatic type, the diaphragm is pivoted to disengage the clutch and interrupt the transmission of couple.
- the reaction plate is linked in rotation by its friction face 17 in a disengageable manner, via the friction disc, to the input member of the transmission.
- the friction clutch can be provided with a device for taking up the wear of the friction linings of the friction disc.
- the elastic members acting between the secondary flywheel may have circumferential action and act between two guide washers secured to the primary flywheel and a central web or disc secured to the hub of the secondary flywheel 13; the elastic members being mounted, for example, in a sealed chamber carried mainly by the primary flywheel 12 and this, at the outer periphery thereof.
- the transverse element 14 of the primary flywheel 12 may include a metal support flange as in Figures 3 to 6 of this document FR-98 09638 or in Figure 7 of the present application showing a compact embodiment of a clutch with friction.
- the primary flywheel 12 can be fixed on the output driving shaft of the internal combustion engine by means of a second hub forming a spacer between this output shaft - here the crankshaft of said engine - and a first hub 6 which comprises the primary flywheel 12.
- the transverse element 14 consists of a plate of moldable material just like the reaction plate 16, forming an inertia disc.
- the plates 14 and 16 are here made of cast iron. In all cases, the transverse element 14 (the flange or the plate) is parallel to the reaction plate 16 dorsally having a friction face 17 for a friction lining of the friction disc.
- the elastic damping devices 15 intervene radially or circumferentially between the transverse element 14 and the hub 18, which is provided centrally by the secondary flywheel 13.
- the secondary flywheel 13 is mounted by its hub 18 in rotation on the first hub 6 of the primary flywheel 12 by means of small bearing means 8 of the smooth or ball bearing type.
- the first hub 6 can carry, internally, a pilot bearing 7 to support the free end of the member driven, here the free end of the input shaft of the gearbox.
- the bearing means 8 consist of a ball bearing intervening between the outer periphery of the first hub 6 and the inner periphery of the hub 18 of the secondary flywheel.
- the outer ring of the ball bearing can be formed by means of the hub 6 of the secondary flywheel, as described in document FR-A-2,749,904.
- the ball bearing is fixed by capacitor discharge welding to the first hub 6 and the hub 18.
- the bearing 8 intervenes axially between the first hub 6 and the hub 18 of the secondary flywheel, as described in document FR-A-2 754 034.
- the bearing means 8 are carried by the first hub 6 and operate axially and / or radially between the first hub 6 and the hub 18 for rotary mounting of the secondary flywheel 13 on the primary flywheel 12.
- the hub 18 is an internal hub, since it is surrounded by the reaction plate 16 with, the intervention of a torque limiter 19 between the plate 16 and the hub 18. This limiter 19 intervenes between the internal periphery of the reaction plate 16 and the outer periphery of the hub 18, here in treated steel.
- the reaction plate 16 is rotatably mounted on the internal hub 18 as described below.
- This hub 18 is provided with through holes 20 for the passage of at least one tool for access to the heads of the fastening members 21 of the primary flywheel, here in the crankshaft of the engine of the motor vehicle, as a variant, in the secondary hub secured to the crankshaft .
- the fastening members 21 here consist of screws, the heads of which have imprints with which the tool (s) for screwing engage.
- the screws 21 pass through holes 22 made in the plate 14 in axial coincidence with the through holes 20.
- the through holes 20 are located radially above the bearing means 8 - here a bearing 8 with a single row of balls -, and this, at the internal periphery of the hub 18.
- the holes 20 have a diameter greater than that of the screw heads 21, which are thus ultimately mounted by the manufacturer of the motor vehicle.
- the screw heads have a diameter greater than that of the through holes 20, so that the screws 21 are trapped and delivered to the car manufacturer.
- the primary flywheel 12 carries at its outer periphery the starter ring 23 of the motor vehicle.
- the plate 14 is thicker at its outer periphery and the starter ring 23 is mounted, in known manner, by hooping on a cylindrical bearing surface of axial orientation 123 and shouldered, that has its outer periphery the plate 14.
- the plate 14 also carries at its external periphery a plate 124 in the form of a washer carrying the pins 44 force fitted into the plate 14.
- the washer 124 is fixed by rivets 125 to the plate 14.
- the plate 14 has extra thicknesses 129 to increase the inertia of the primary flywheel 12.
- the extra thicknesses 129 have a generally triangular shape so as not to interfere with the housings 26 of the elastic damping devices 15 interposed circumferentially, so alternative, between thicknesses 129.
- the first hub 6 is in one piece with the plate 14. This hub 6 is molded with the plate 14.
- the first hub 6 is attached, for example by riveting, to the plate 14 or, in general, to the flange 14, generally of transverse orientation as visible in FIG. 7.
- the means of friction 46 are of the type described in document FR-A-2 754 034 to which reference will be made for more details. These means 46 operate radially above the through holes 20 and the pins 45.
- these friction means 46 include a control washer 146 made of plastic material allowed to rub against the dorsal face 114 of the plate 14 facing the secondary flywheel 13. The washer 146 is linked in rotation to the secondary flywheel by means of axial projections in the shape of cylindrical pawns
- the pins 147 extending the pins 45.
- the pins 147 each penetrate into a notch (not referenced) that has the washer 146 at its internal periphery.
- the washer 146 At its outer periphery, the washer 146 has an external toothing formed by an alternation of teeth and notches.
- a friction washer 148 surrounds the control washer 146 and has at its internal periphery an internal toothing formed by alternating teeth and notches. The teeth of the internal teeth penetrate with circumferential play in the notches of the external teeth and vice versa. The friction washer 148 therefore meshes, in circumferential clearance with the control washer 146.
- the washer 148 is allowed to rub against the dorsal face 114 of the plate 14 or as a variant on a part or a covering integral with the face 114.
- a closing washer 151 is fixed by rivets 152 to the plate 14.
- the rivets 152 are implanted radially above the washer 148.
- the control washer 146 is pinched between the face 114 and the internal periphery of the washer 151 of frustoconical shape radially below its zone of attachment to the plate 14.
- the washer 151 is provided with windows visible in FIG. 17 of the document FR -A-2 754 034 so that the washer 151 is elastically deformable.
- An application washer 149 meshes with the plate 14 by a cooperation of shapes, legs (not referenced) of the washer 149 penetrating in axial grooves (not referenced) made in an extra thickness of the plate 14 and this, below rivets 152.
- An elastic washer with axial action 150 here a Belleville washer, is supported on the closing washer 151 for action on the application washer 149, axially movable relative to the plate 14, and tightening of the friction washer
- the control washer is pinched elastically between the face 114 and the internal periphery of the closing washer 151.
- the control washer 146 is rotated by the pins 147 and continuously rubs between the face 114 and the washer 151.
- the friction washer 148 intervenes in a delayed manner after the play between the external and internal teeth is taken up.
- the washer 148 adds these effects, its friction between the face 114 and the application washer 151, integral in rotation with the plate 14, being controlled by the Belleville washer 150, here stiffer than the washer 151.
- the torque limiter 19 located opposite the friction means 46; radially, on the one hand, above the passages 20 and, on the other hand, below the rivets 152 and the friction face 17.
- the torque limiter has a friction washer 280, the mean radius of which is advantageously generally equal to that of the friction washer 148, which is favorable for the reduction of the axial dimensions.
- the reaction plate 16 forming an inertia disc, has at its internal periphery radially below the face 17, an internal ring 160 of reduced thickness and transverse orientation.
- This internal ring 160 is rotatably mounted in an annular groove 10, delimited laterally, by a web 180 and the friction washer 280.
- the web 180 and the washer 280 are of transverse orientation and are therefore perpendicular to the axis XX constituting l axis of rotation and axial symmetry of the double torsion damping flywheel.
- the groove 10 is carried by the hub 18 and extends to the outer periphery thereof.
- the torque limiter 19 also includes a washer 72, at least one counter-stop 71, elastic means with axial action 70, and at least one stop 271, integral with the friction washer 280, linked in rotation to the internal hub 18, mounted for rotation on the first hub 8 by means of the bearing means 8.
- the counter-stop 71 extends radially outwards relative to the washer 72 of which it is integral.
- the stop 271 extends inwards relative to the friction washer 280.
- the ring 160 has a cylindrical internal bore 163 centered by the external periphery 183 of an annular bush of axial orientation 182 belonging to the internal means 18 and forming the cylindrical bottom of the groove 10, of annular shape.
- the reaction plate 16 is therefore rotatably mounted on the sleeve 182 while being centered by the sleeve 182 of the hub 18 surrounded by the reaction plate 16.
- the web 180 and the friction washer 280 each have an internal face respectively 181 and 281 of transverse orientation.
- the lateral internal faces 181, 281 are opposite one another and form the lateral internal flanks 181, 281 of the annular groove 10.
- the ring 160 has lateral external flanks 161, 162 formed by the lateral faces of the ring 160.
- the lateral lateral flanks 161, 162 are allowed to wear and rub on the internal flanks 181, 182 under the action of elastic means with axial actions 70 bearing, on the one hand on the counter-stop 71, and, on the other hand, on the stop 271.
- at least one of the lateral flanks 181, 281 of the groove 10 is of frustoconical shape.
- the external lateral flank 162, 161 complementary to the ring 160 is of frustoconical shape.
- the associated sides 161, 281 are in a frustoconical embodiment.
- the internal hub 18 is shaped to delimit a cavity 9 radially below the internal ring 160 of the reaction plate 16.
- the hub 18 is of reduced thickness below the ring internal 160 and the cavity 9 is axially open in the direction opposite to the primary flywheel.
- the cavity 9 is therefore blind and the bottom of the cavity 9 is delimited by the internal hub 18, here by the web 180 of the hub 18.
- This web 180 is integral with the hub 18 or is attached for attachment thereto as described below so that the hub 18 can be a bi-material hub.
- the stop 271 is housed in a cavity 9, produced in the internal hub 18 at the external periphery thereof.
- the cavity 9 is in the form of a recess, in FIGS. 1 to 4.
- the recess is produced in the hub 18 of reduced thickness at this location.
- the recess 9 is delimited radially externally by the bush 182 of axis XX and laterally, that is to say transversely, by the web 180 extending transversely on either side of the bush 182 and forming the transverse bottom of the cavity 9.
- the recess 9 is delimited by the main part 184 of the internal hub 18, which is thicker than the web 180 projecting radially outwards relative to the main part 184, in which the passage holes 20 are made.
- the web 180 is therefore a protuberance of the hub 18.
- the web 180 carries the bushing 182 in elevation, the internal periphery of which here serves as a centering device at the external periphery of an annular portion of axial orientation 173 connecting the friction washer 280 to the stop 271 housed inside the recess 9, forming a cavity open axially in the direction opposite to the transverse element 14.
- the cavity 9 can be obtained by molding, as a variant, by machining.
- the sleeve 182 by its external periphery serves as a centering device for the internal ring 160.
- the stop 271 here extends radially above the counter-stop 71 extending generally in the same transverse plane as the friction washer 280.
- the counter-stop 71 is axially offset relative to the stop 271 and this, in the opposite direction to the primary flywheel 12.
- the stop 271 is generally located in the thickness of the internal hub 18 in favor of the recess 9.
- the counter-stop 71 extends in axial projection outside the internal hub 18, on the side of the dorsal face of that -this, opposite the primary flywheel 12 and the elastic damping devices 15.
- the stop 271 is extended radially inwards by at least one transverse connecting lug 272 engaged in a radial notch 185 which has at its external periphery the main part 184 of the internal hub 18.
- two lugs 272 and two notches 185 are planned.
- the notches 185 and the tabs 272 are diametrically opposite. A connection by cooperation of shapes therefore exists between the tabs 272 and the hub 18 so that the friction washer 280 is integral in rotation with the hub 18 while being able to move axially with respect thereto following in particular the phenomena of wear .
- the number of tabs 272 and notches 185 depends on the applications.
- the notches 185 have a rounded internal radial end ( Figure 4) to avoid jamming of the tabs 272 and have an oblong shape.
- the tabs 272 have a shape complementary to that of the notches 185 and penetrate assembly clearance therein.
- the tabs 272 and the notches 185 have another shape.
- the tabs 272 are offset radially and also axially with respect to the stop 271 and this in the direction of the primary flywheel 12. Thanks to this arrangement, the tabs 272 are interposed axially between the washer 72 and the transverse bottom 186 of the notches 185.
- the notches 185 extend radially inwards the recess 9 and are open axially towards the outside, that is to say in the direction opposite to the primary flywheel 12.
- the recess 9 the transverse bottom of which is constituted by the veil 180, which reduces the axial size.
- an axial clearance exists between the bottom 186 generally of transverse orientation of the notches 185 and the tabs 272 for driving in rotation.
- An axial clearance therefore also exists between the stop 271 and the web 180.
- the tabs 272 are in one piece with the stop 271, itself in one piece with the friction washer 280.
- the parts 272, 271, 173 and 280 belong to one and the same part, here in pressed sheet metal, in order to reduce the axial size and the costs.
- the elastic means with axial action 70 are, according to a characteristic, located below the internal ring 160 of the reaction plate and here consist of a Belleville washer for reducing the number of parts and good control of the load exerted by the washer 70 on the friction washer 280.
- the Belleville washer 70 is replaced by a diaphragm.
- the axial size of the washer 70 is minimum.
- the elastic means with axial action can constitute a corrugated elastic washer of the "Onduflex" washer type.
- the counter-stop 71 and the stop 271 are generally installed on the same circumference being an annular shape.
- the counter-stop 71 is also in one piece with its support washer 72 and is connected to the external periphery of the washer 72 by a connection zone 73 of section in the shape of an "S".
- the washer 72 is here in stamped sheet metal and has at its internal periphery notches 74 axially aligned with the passage holes 20 for passage of the heads of the screws 21 and of the screwing tool (s).
- the washer 72 also includes holes 174 alternating circumferentially with the notches 74 and implanted radially on an average circumference greater than that of the holes 20 and notches 74.
- the notches 185 are implanted radially above two holes 20 diametrically opposite and this circumferentially between two holes 174 in axial coincidence each with a hole 274 made in the inner hub 18.
- the inner hub 18 thus has the maximum mechanical strength as best seen in Figure 4; the notches 185 being generally installed on an average circumference greater than that of the holes 174, 274.
- the Belleville washer 70 is supported at its outer periphery on the stop 271 and at its inner periphery on the counter-stop 71, to urge the washer friction 280 in the direction of the web 180.
- the washer 70 is mounted before the fixing, here by riveting, of the washer 72 on the hub 18 by means of the pins 45 as described below. Thanks to the axial play between the tabs 272 and the transverse bottom 186 of the notches 185, the washer 280 can be originally inclined in the direction of the web 180, then be straightened under the action of the elastic washer 70, to perfectly match the external face 161 of the ring 160, the other external face 162 of which fits perfectly on the internal face 181 machined from the web 180.
- the performance and the service life of the torque limiter 19 are improved thanks to the obtaining maximum contact between the external transverse faces 161, 162 of the machined ring and the internal sides 281, 181 of the groove 10, the ring 160 being clamped axially between the sides 181, 281 of the groove 10 open radially outwards, in the opposite direction to the axis XX. All this is made possible also thanks to the separation of the elastic means with axial action 70 relative to the parts 71 to 73 and 271, 272, 273, 280.
- the axial dimensions are not increased, on the contrary, this dimensions are slightly reduced.
- at least one of the flanks 181, 281 and at least one of the external flanks 162, 161 can be of frustoconical shape without increasing the axial size compared to the prior art.
- the elastic means 70 are more distant from the friction face 17 and therefore less hot, since they are located radially below the ring 160 and partially penetrate into the cavity 9.
- the washer 280 and the counter-stop 71 are generally in the same plane as the friction face 17, the internal hub 18 being slightly offset axially in the direction of the transverse element 14 relative to the friction face 17.
- the torque limiter 19 is similar to the friction means 46, this limiter comprising a first friction washer 280, radially surrounding a second washer constituted by the counter-stop 71.
- the washers 71, 280 are generally in the same plane. These washers 71, 280 are connected by the elastic means with axial action 70.
- the pins 45 drive in rotation at one of their ends, the friction means 46 and at their other end, the counter-stop 71, the average diameter of the friction washer 148 being generally equal to that of the friction washer 280. This gives a good distribution of efforts within the double damping flywheel, as well as a minimum axial size, the housings 26 extending radially above the main part 184 of the internal hub 16, as well as the active surface of the control washer 146. 45 are also used for fixing by riveting the washer 72 and therefore the counter-stop 71 of the hub 18.
- the pins 45 have a flange 145, which is allowed to come into contact with the transverse face of the internal hub 18 facing the friction means 46 and the plate 14.
- the flange 145 is extended by a body passing through the aligned holes 274, 174
- the body has at its free end, beyond the support washer, a head. This head is crushed in contact with the washer 72 for fixing by riveting the washer 72 to the hub 18 using the pins 45.
- the washer 72 is thus secured to the internal hub 18.
- the washer 72 is secured to the hub 18 by means of fixing distinct from the pins 45.
- the face of the web 180 facing the plate 14 is generally in the same plane as the transverse face of the plate 16 facing the plate 14.
- the torque limiter 19 is generally located in the thickness of the plate 16 thanks to the cavity 9 produced in the internal hub 18, which promotes the cooling of the part 184 of the hub 185 and of the bearing 8.
- the crushed heads of the pins 45 are also generally installed in the thickness of the reaction plate 16.
- the groove 10 is for the most part delimited by the internal hub 18 and has a lateral flank formed by the friction washer 280 distinct from the web 180 and therefore from the hub 18. This washer 280 can move axially relative to the web 180, while being linked in rotation to the hub 18 by to the internal tabs 272 and to the notches 185.
- the friction washer 280 surrounds the counter-stop 71, while the elastic means 70 are located radially between the friction washer n 280 and the support washer 72.
- the axial position of the ring 160 therefore depends on the thickness of the web 180. It will be appreciated that the elastic devices 15 can here have a very great radial length. and that, according to the invention, the hub 18 is hollowed out for housing the stop 271.
- the counter-stop 71 and the stop 271 can be fragmented, for example by means of slots.
- the friction washer 280 and the washer 72 can be fragmented into annular sectors.
- each sector of the friction washer 280 comprises at least one tab 272.
- the counter-stop 71 and the stop 271 are attached, for example, to fixing respectively on the washer 72 and the washer 280, by example by welding.
- coatings and / or friction linings can intervene between, on the one hand, the ring 160 and, on the other hand, the sides and the bottom of the groove 10 It is the same in the other figures. It is thus possible to transmit more torque since the friction coefficients of the coatings and / or friction linings can be higher.
- the torque limiter intervenes in the starting and stopping of the internal combustion engine of the motor vehicle to protect the parts of the double damping flywheel. A relative rotational movement of the reaction plate 16 with respect to the internal hub 18 is made possible under these conditions under which the resonant frequency is passed.
- the torque limiter goes well with the presence of an electric machine associated with the double damping flywheel as described in the embodiment of FIG. 5 of the aforementioned document FR-98 09638, because the inertia of the primary flywheel 12 is then increased so that the characteristics of the torque limiter must be properly understood.
- the output shaft of the engine is shown at 100 and at 101 the input shaft of the gearbox, knowing that the hub of the friction disc enters the first hub 6.
- the springs 24, 25 can be replaced by tension springs with tie rods mounted at articulation on the pins 44, 45.
- they may be helical springs with end loops mounted on the pins 44, 45.
- the elastic members 24, 25 act in all cases between the transverse element 14 and the internal hub 18 rotatably mounted on the primary flywheel.
- the friction means 46 can also act at the level of the bearing 8.
- the ring 160 can be attached, for example, by overmolding or crimping on the reaction plate
- the ring 160 is, for example, partially embedded in the plate
- This extension is advantageously provided with holes and / or projection to perfect the anchoring.
- the material of the plate 16 penetrates into the holes and / or coats the projections.
- This ring 160 integral in all cases with the plate
- the web 180 can be attached to the fixing, for example by welding, overmolding, crimping, on the main part 184 of the internal hub 18, in particular to facilitate the production of the cavity 9.
- the attached ring 160 or the attached web 180 can therefore be made of a material different from that of the plate 16 and the hub 180 respectively, so that these can be made of two materials.
- the fact of attaching the ring 160 or the web 180 makes it possible to reduce the thickness of these and therefore to reduce the axial size of the limiter.
- the ring 160 can therefore be made of steel or another material which wears less than cast iron. This material can also have a better coefficient of friction. Thanks to that provision, applicable to any torque limiter, reduces wear, including the ring, the hub and the ring wearing in the same way.
- the ring 160 or the veil 180 is therefore in a metallic variant.
- the ring 160 or the veil 180 is in one embodiment in stamped sheet metal covered with an anti-wear layer. It is for example locally quenched or coated with a layer of nickel or molybdenum.
- the washer 72 is a support piece for the counter-stop 71. It is possible to form ventilation fins in this washer 72 by cutting and folding.
- the veil 180 can be perforated at the level of the cavity 9 to improve ventilation and better cool the torque limiter 19 as well as the bearing means 8.
- the hole in the veil 180 therefore opens into the hollow of the hub 18.
- the stops 271 and counter-stop 71 are of transverse orientation and parallel to one another.
- the stops 271 and counter-stop 71 can be inclined, in particular when the sides 161, 281 are inclined.
- the pins 147 constitute projections of fastening members 45 of the support piece or pieces 72 of the counter-stop (s) 271.
- the reaction plate 16 is of constant thickness, its ring 160 being of reduced thickness. As a variant, the thickness of the plate may not be constant.
- holes can be provided, for example in the connection zone 73 of the washer 72. These holes belong to ventilation means installed at the level of the limiter.
- the internal radial edge of the cavity 9 can serve as a centering device for the friction washer 280 then extended radially inwards from its abutment (s) 271. This is appropriate when the friction washer has a frustoconical shape. It will be noted that the connection zone can be stamped to form a deflector preventing oil leaks, escaping from the axis XX, from contaminating the friction face 17.
- the bottom of the groove may not be constituted by the internal hub but by the friction washer 280 as visible in FIG. 5, which makes it possible to eliminate the bush 182 of FIG. 2 and therefore to reduce the radial size. .
- the size of the Belleville 70 washer can be increased.
- the internal diameter of the ring 160 and that of the friction face 17 of the reaction plate 16 can be reduced.
- the reaction plate 16 is centered by the external periphery of the web 180 of the internal hub 18, of simplified form since it does not have a socket.
- the reaction plate 16 has an annular bearing surface with axial orientation 164 connecting the side face 163, facing the primary flywheel 12, from the plate 16 to the external periphery of the face 161 of the ring 160.
- This face 161 which is intended to cooperate with friction with the face 181 of the veil 180.
- the bearing surface 164 therefore comes into intimate contact with the external periphery of the veil 180 and is therefore formed by the change of thickness of the plate 16 at its internal periphery for formation of the ring 160. There then arises a problem of evacuation of the chips formed by the contact between the faces 161, 181 because, unlike what happens in FIGS. 1 to 4, the bearing surface 164 prevents the evacuation of these.
- the veil 180 is provided with notches 269 opening out at the outer periphery of the veil 180.
- the notches 269 for example have the shape of a half moon.
- the hub 18 is of reduced thickness radially below the ring 160 and delimits by its web 180 a cavity 9 below the ring 160 for housing the stop 271 belonging to the friction washer 280.
- This stop 271 is connected by an inclined portion 273 to the friction washer 280.
- the portion 273 forms the bottom of the groove delimited by the web 180 and the washer 280.
- the bottom 273 therefore does not serve as a centering device for the ring 160.
- the stop 271 in one piece with the friction washer 280, is linked in rotation to the washer 72 in one piece with the counter-stop 71.
- the stop 271 is extended radially inwards by at least one tab 272 passing through an associated hole 285 produced in the connection zone 73 of the washer 72 to the counter-stop 71, said zone 73 being generally of axial orientation and directed in the opposite direction to the primary flywheel.
- Preferences at least two tabs 272 and two associated holes 285 are provided and this in a diametrically opposite manner, the tabs 272 engaging in axial play in the holes 285.
- the friction washer 280 can comprise at least one tab 272 engaged in a notch 185 of the hub 16 as in FIGS. 1 to 4, while the centering of the reaction plate 16 is carried out at using the veil 180 as in FIG. 5.
- the holes 285 of FIG. 5 are replaced by hollow stampings 385, for example in the shape of a U, produced in connection zone 73, the tabs 272 penetrating into the stampings for connection in rotation of the washer 280 to hub 18 with axial mobility.
- the hub is of reduced thickness at its external periphery for delimitation of the cavity 9. It is the web 180 which delimits with the ring 160 this cavity 9 open axially in the direction opposite to the primary flywheel 12.
- the veil 180 forms the bottom of the cavity 9 delimited in all the figures by the counter-stop 71 of low height for opening the cavity 9.
- the counter-stop 71 and the connection zone 73 can be in one piece with the hub 18 by being molded therewith.
- the reaction plate 16 is centered by the veil 180 as in FIGS. 5 to 7.
- the elastic means with axial action consist then advantageously in an open corrugated washer for mounting in the cavity 9.
- a washer a washer of that described in document FR-A-2,747,441 may be used.
- the stop 271 is mounted at an angle in the cavity 9, a single tab 272 being provided.
- This flywheel can be associated with a clutch mechanism comprising (FIG. 7) as above an annular cover 90 movable in rotation about the axis XX, a pressure plate 91 integral in rotation with the cover 90 and movable axially with respect to the latter, here by means of axially elastic tongues 92 extending in a manner known per se tangentially and fixed at one of their ends to the pressure plate 91 and at their other end to the cover 90.
- a diaphragm 93 is interposed between the pressure plate 91 and the cover 90 to exert an axial thrust on the pressure plate for axial tightening of the friction disc 87, also called clutch friction, between the pressure plate 91 and the reaction plate 16.
- the diaphragm 93 is pivotally mounted on the cover 90 using hooking means 94.
- the hooking means 94 are discontinuous and extend in projection on the cover 90 and on the diaphragm 93 in the direction of the pressure plate 91, which has through holes 95 axially aligned with the hooking means 94, which extend at least in part within the through holes.
- the diaphragm 93 is thus supported on the cover 90 of hollow form, here generally in the form of a hollow plate. More precisely, the hooking means 94 are carried by the bottom, which is perforated centrally, of the cover 90.
- the through holes 95 open out on one face of the pressure plate 91 opposite the friction face 17 of the reaction plate 16. This face of the pressure plate 91 is therefore a friction face 97.
- the pressure plate 91 comprising the through holes 95, is reinforced by an internal stiffening ring 98, also called the reinforcement ring, formed here of a piece with the pressure plate 91.
- This ring can optionally be added by overmolding, crimping, etc., on the plate 91 in the same way as the ring 160.
- the holes 95 are here flared in the direction of the diaphragm 93.
- the holes 95 are of substantially frustoconical shape, their widest end being on the diaphragm side 93.
- the hooking means 94 of the diaphragm 93 on the bottom of the cover include tabs 99 from the cover 90 by cutting and folding.
- the legs are folded at their free ends radially in the direction opposite to the axis X-X of the assembly.
- These legs 99 are centered on a frustoconical crown 84 providing a secondary support to the diaphragm 93 opposite a primary support 85 formed here by stamping in the bottom 86 of the cover 90.
- the legs 99 pass through the diaphragm, more precisely the enlarged orifices thereof. For more details, see document FR-A-2 585 424.
- the hooking means can be of the type of those of FIGS. 7 to 14 of document FR-A-2 456 877 and include columns, or crowns engaged in the through holes 95. These holes 95 combine well with the shape of legs 99 with folded end.
- the friction disc 87 has a hub 187 on which a metallic support 88 is fixed here by riveting carrying on each of its faces friction linings 89 intended to be clamped between the friction faces of the reaction and friction plates 16 91.
- the hub 187 enters the hub 6 of the primary flywheel 12. This hub 6 is attached by riveting to the flange 14.
- the hub 87 has a web 287 of sinuous shape to avoid the limiter 19.
- the support 88 is axially offset by its internal periphery in the direction opposite to the secondary flywheel 13 to create a clearance for the limiter; the diaphragm fingers also have a sinuous shape to come as close as possible to the web 287 and to avoid any interference with the reinforcement ring 98.
- the declutching device comprises a declutching stop 200 with hydraulic control of the concentric type as described in document WO 98/13613 in order to reduce the bulk. axial.
- the declutching stop 200 is therefore secured to a piston 201 mounted to slide axially inside a blind cavity 202 delimited by an external body 203 surrounding a guide tube 204 fixed in leaktight manner by an end flange, here at using a nut 205, on the body 203.
- the flange of the tube 204 is generally of transverse orientation and delimits the bottom of the cavity 202.
- the guide tube 204 is crossed by the input shaft of the box speeds and is' longer axially than the body 203 for axial guidance of the piston 201.
- the body 203 is designed to be fixed on a fixed part of the vehicle i.e. the casing of the gearbox.
- This piston has a seal at the rear and a scraper seal at the front (not referenced in Figure 7).
- a supply inlet 206 of the cavity 202 connected to a transmitter.
- the entry opens into the bottom of the cavity 202.
- the preload spring bears on a shoulder of the body 203 and acts on the non-rotating ring of a ball bearing constituting the declutching stop 200.
- the rotating ring of this bearing is shaped to act, here by pushing, on the inner end of the fingers of the diaphragm 93.
- it is the outer ring of the bearing 200 which is rotating and which has two transverse edges 208, 209 parallel to one another and offset axially with respect to each other. These flanges are connected axially to each other by an annular section 210 shaped to receive the balls of the bearing.
- the edges 208, 209 extend transversely on either side of the section 210 and this at each axial end thereof.
- the same clutch can be equipped with two diaphragms of different sizes.
- the fingers of these diaphragms can cooperate at their ends either with the flange 208 as in FIG. 7, or with the flange 209 as shown partially in dotted lines. This is made possible because the flange 209, the closest to the web 287, is located opposite the convex part 288 connecting the external periphery of transverse orientation of the hub web 287 to the hub 187.
- An axial action elastic washer 289 connects a transverse rim 290 of the non-rotating ring of the bearing, here the internal ring, to the piston 201.
- the washer has a portion in the form of a Belleville washer bearing at its outer periphery on said rim.
- the Belleville washer has lugs of axial orientation 291, with a free end in the shape of a hook, each engaged in an associated blind axial slot (not referenced) made in the thickness of the piston.
- the slot is wider than the tab to allow passage of the hook of the tab concerned.
- the axial slot is connected to the external periphery of the piston by an inclined opening through the bottom of the axial slot. There is thus formed at the intersection of the slots a projection (not referenced) on which is hooked the hook of the lug concerned.
- the washer 289 is therefore mounted blind by snap-fastening on the piston. When the cavity is depressurized, the clutch is engaged, the linings 89 then being clamped between the plates 16, 91.
- the stop 200 belonging to a hydraulic receiver by pressurizing the cavity 202 from a transmitter connected to the cavity 202, we move the stop 200 to the left of Figure 7 which rotates the diaphragm around its primary and secondary supports.
- the linings 89 are then released.
- the clutch is thus shown in the disengaged position (free linings 89) while in the lower part of Figure 7 the linings 89 are tight.
- the piston 201 returns to its initial position under the return action exerted by the diaphragm, which compresses the preload spring. All this is well known to those skilled in the art and for more details, reference is made to the aforementioned document WO 98/13613. We appreciate the compactness of the whole.
- the flange 14 carries at its external periphery a mass 140 itself carrying the pin 44 and the starter ring 23 as well as the washer 124.
- the hub 6 of the primary flywheel is fixed by riveting to the internal periphery of the flange 14.
- the mass 140 has at its internal periphery axial grooves for the friction means 146 so that the flange 14 is simplified.
- the hydraulic control can have another form.
- the cavity can be formed only by the guide tube.
- reaction plate 16 can be centered by the web 180 as in FIGS. 5 to 7 so that the sleeve 182 does not necessarily serve as a centering device for the reaction plate 16.
- connection portion 173 of the stop 71 to the friction washer is housed at least partially in the cavity 9.
- holes can be made in the hub plate 287 and in the diaphragm 93, and this in axial coincidence with the holes 20 for access to the screw heads 21 and creation of a module comprising the double damping flywheel and the friction clutch with its cover and its diaphragm which is mounted on the crankshaft of the vehicle engine.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/555,967 US6584873B1 (en) | 1998-10-07 | 1999-10-07 | Dual mass damping flywheel, in particular for motor vehicle |
KR1020007006136A KR100602564B1 (ko) | 1998-10-07 | 1999-10-07 | 이중 질량 부재 감쇠 플라이휠 |
DE19982215T DE19982215B4 (de) | 1998-10-07 | 1999-10-07 | Zweimassen-Dämpfungsschwungrad, insbesondere für Kraftfahrzeuge |
JP2000574854A JP4505143B2 (ja) | 1998-10-07 | 1999-10-07 | 特に自動車用のデュアル質量部材ダンピングフライホイール |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR98/12567 | 1998-10-07 | ||
FR9812567A FR2784430B1 (fr) | 1998-10-07 | 1998-10-07 | Double volant amortisseur, notamment pour vehicule automobile |
FR9909096A FR2797005B1 (fr) | 1999-07-13 | 1999-07-13 | Mecanisme d'embrayage a diaphragme, en particulier pour vehicule automobile |
FR99/09096 | 1999-07-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000020776A1 true WO2000020776A1 (fr) | 2000-04-13 |
Family
ID=26234587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1999/002408 WO2000020776A1 (fr) | 1998-10-07 | 1999-10-07 | Double volant amortisseur, notamment pour vehicule automobile |
Country Status (5)
Country | Link |
---|---|
US (1) | US6584873B1 (fr) |
JP (1) | JP4505143B2 (fr) |
KR (1) | KR100602564B1 (fr) |
DE (1) | DE19982215B4 (fr) |
WO (1) | WO2000020776A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110345174A (zh) * | 2018-04-05 | 2019-10-18 | 埃莱萨公司 | 包含扭矩限制装置的操纵元件 |
FR3136530A1 (fr) * | 2022-06-14 | 2023-12-15 | Valeo Embrayages | Dispositif d’amortissement de torsion |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007028258A1 (de) * | 2007-06-15 | 2008-12-18 | Zf Friedrichshafen Ag | Drehfeste Verbindung zweier Bauteile eines Getriebes zur Drehmomentübertragung |
KR20130020318A (ko) * | 2011-08-19 | 2013-02-27 | 현대자동차주식회사 | 엔진 시동장치 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR769062A (fr) | 1933-05-12 | 1934-08-18 | Le Mondial | Dispositif d'ouverture des bouteilles de gaz comprimé, plus particulièrement applicable aux extincteurs d'incendie |
FR2749904A1 (fr) | 1996-06-17 | 1997-12-19 | Valeo | Volant double amortisseur muni d'un limiteur de couple a montage simple |
FR2754034A1 (fr) | 1996-09-30 | 1998-04-03 | Valeo | Double volant amortisseur, notamment pour vehicule automobile, comportant des moyens perfectionnes d'amortissement par friction des vibrations |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4777843A (en) * | 1987-06-05 | 1988-10-18 | Eaton Corporation | Two mass flywheel assembly with viscous damping assembly |
GB2280943B (en) * | 1991-01-30 | 1995-08-16 | Automotive Products Plc | A twin mass flywheel |
JP3262241B2 (ja) * | 1993-09-07 | 2002-03-04 | ヴァレオユニシアトランスミッション株式会社 | トーショナルダンパの振動減衰装置 |
FR2728322A1 (fr) * | 1994-12-16 | 1996-06-21 | Valeo | Volant amortisseur, notamment pour vehicules automobiles |
JP3773572B2 (ja) * | 1995-12-14 | 2006-05-10 | 株式会社ユタカ技研 | 2マス型フライホイール |
IN189877B (fr) * | 1997-08-04 | 2003-05-03 | Luk Lamellen & Kupplungsbau |
-
1999
- 1999-10-07 WO PCT/FR1999/002408 patent/WO2000020776A1/fr active IP Right Grant
- 1999-10-07 US US09/555,967 patent/US6584873B1/en not_active Expired - Lifetime
- 1999-10-07 KR KR1020007006136A patent/KR100602564B1/ko not_active IP Right Cessation
- 1999-10-07 JP JP2000574854A patent/JP4505143B2/ja not_active Expired - Fee Related
- 1999-10-07 DE DE19982215T patent/DE19982215B4/de not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR769062A (fr) | 1933-05-12 | 1934-08-18 | Le Mondial | Dispositif d'ouverture des bouteilles de gaz comprimé, plus particulièrement applicable aux extincteurs d'incendie |
FR2749904A1 (fr) | 1996-06-17 | 1997-12-19 | Valeo | Volant double amortisseur muni d'un limiteur de couple a montage simple |
FR2754034A1 (fr) | 1996-09-30 | 1998-04-03 | Valeo | Double volant amortisseur, notamment pour vehicule automobile, comportant des moyens perfectionnes d'amortissement par friction des vibrations |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110345174A (zh) * | 2018-04-05 | 2019-10-18 | 埃莱萨公司 | 包含扭矩限制装置的操纵元件 |
CN110345174B (zh) * | 2018-04-05 | 2022-07-19 | 埃莱萨公司 | 包含扭矩限制装置的操纵元件 |
FR3136530A1 (fr) * | 2022-06-14 | 2023-12-15 | Valeo Embrayages | Dispositif d’amortissement de torsion |
WO2023242224A1 (fr) * | 2022-06-14 | 2023-12-21 | Valeo Embrayages | Dispositif d'amortissement de torsion |
Also Published As
Publication number | Publication date |
---|---|
JP2002526731A (ja) | 2002-08-20 |
US6584873B1 (en) | 2003-07-01 |
DE19982215T1 (de) | 2000-11-16 |
DE19982215B4 (de) | 2009-11-26 |
JP4505143B2 (ja) | 2010-07-21 |
KR20010032818A (ko) | 2001-04-25 |
KR100602564B1 (ko) | 2006-07-20 |
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