WO2017191374A1

WO2017191374A1 - Shock absorber assembly for a motor vehicle, and hydrokinetic device comprising such an assembly

Info

Publication number: WO2017191374A1
Application number: PCT/FR2016/051047
Authority: WO
Inventors: Roel Verhoog; Michaël Hennebelle; Rabah Arhab
Original assignee: Valeo Embrayages
Priority date: 2016-05-03
Filing date: 2016-05-03
Publication date: 2017-11-09

Abstract

The invention relates to a shock absorber assembly (100) for a motor vehicle, comprising: a torque input element formed by a single guide washer (108) and a torque output element (109), said torque input (108) and output (109) elements being arranged coaxially with one another about an axis of rotation (X) of the shock absorber assembly (100); a torsional damping device disposed between the torque input element (108) and the torque output element (109) and comprising first springs (110) acting against the rotation of the torque input element (108) relative to the torque output element (109); and a pendulum damping device (111) comprising a support (112) and weights (113) movably mounted on the support (112), the pendulum damping device (111) being connected to the torque input element, and the support (112) forming an annular plate that can be positioned without clearance around the guide washer (108).

Description

Damper assembly for a motor vehicle and hydrokinetic apparatus comprising such an assembly

The invention relates to a damper assembly for a motor vehicle. The invention also relates to a hydrokinetic apparatus comprising such a damper assembly.

It is known a damper assembly for a motor vehicle comprising a torque input member and a torque output member between which are mounted springs acting against the rotation of the torque input element and the second element of the motor. torque output relative to each other and relative to an axis of rotation of the damper assembly. The torque input member receives the torque from the crankshaft and transmits it to the torque output member via the springs. The torque output element transmits the torque to an input shaft of a gearbox. The torque input member is formed by two guide rings interconnected and the output member is formed by an annular web.

One of the two guide washers is extended radially outwardly with respect to the axis of rotation to form a pendulum damping device. Such a pendular damping device comprises a support which is the external radial extension of the guide ring. The pendulum damping device also comprises flyweights mounted movably on the support. The two guide washers are interconnected between the flyweights and the first springs. The guide washer not carrying the flyweights is extended at its outer radial periphery with lugs extending axially in the direction of the opposite guide washer so as to be fitted therein for a rotational connection of the two guide washers, one of which with the other.

Such a damping assembly makes it possible to filter vibrations for relatively high motor moments, of the order of 400 to 450 Nm. Nevertheless, these damping assemblies are expensive, and requires the establishment of a certain number of parts. In addition the efficiency in terms of vibration filtration is low.

The invention aims to remedy these problems by providing a less expensive damper assembly to achieve, with better performance in terms of vibration filtration.

To do this, the invention provides a damper assembly comprising a single guide ring instead of two. The single guide washer also has at its outer radial periphery a radial extension forming a support for the flyweights of the pendular damping device.

The weights on the support can thus be arranged in such a way that their deflection capacity is increased and that the vibration filtration performance of such a pendular damping device is improved.

The subject of the invention is therefore a damper assembly for a motor vehicle, comprising

a torque input element,

a torque output element, the torque input element and the torque output element being arranged coaxially with respect to one another about an axis of rotation of the damping assembly,

a torsion damping device disposed between the torque input member and the torque output member and having first springs acting against rotation of the torque input member relative to the torque output element relative to each other,

a pendulum damping device comprising a support and flyweights mounted movably on the support, the pendular damping device being connected to the torque input element, characterized in that - The support forms an annular plate adapted to be positioned without play around the guide ring.

In one embodiment of the invention, the torque input member is formed by a single guide washer. Indeed, the guide washer can be formed of a single piece.

In another example, the guide washer may comprise several parts, an outer periphery portion serving to accommodate the first springs and an inner peripheral portion adapted to be connected indirectly or directly to an input shaft of a gearbox. The outer peripheral portion and the inner peripheral portion may be superimposed radially or axially with each other. They are connected in rotation to one another. Each of the parts has at least one function distinct from each other.

In another embodiment of the invention, the guide washer has a first face and a second face opposite to the first face, the second face being that intended to be facing the first springs. The support is mounted fixed on the first face of the guide ring.

In another embodiment of the invention, the support is connected in attachment to a radially outer peripheral edge of the guide ring.

In another embodiment of the invention, the torque output member is formed by an annular web, the first springs being disposed between the guide ring and the web to act against the rotation of the guide ring by relation to the veil and vice versa.

In another embodiment of the invention, the guide washer comprises at least one chute for receiving the first springs, the support being connected to the guide washer at least at the location of the chute.

In another embodiment of the invention, the support has a radially inner peripheral edge with tabs extending radially towards the axis of rotation of the assembly, the support being fixed to the guide ring by means of a zone of the radially inner circumferential edge of the support situated between two successive legs.

In one embodiment, the radially inner edge has a shape complementary to the shape of the chute against which the support is fixed. In one example, the radially inner edge of the support extends along a circular line.

In another embodiment of the invention, the guide washer comprises at least two chutes for receiving the first springs, the support being fixed in rotation to the guide ring at a location of the guide washer between the two chutes.

In another embodiment of the invention, the support has a radially inner peripheral edge with tabs extending radially towards the axis of rotation of the assembly, the support being fixed to the guide ring via the paws.

In one embodiment, the tabs are riveted to the guide washer, between two successive springs.

In another embodiment of the invention, the support may also be connected in attachment to the guide washer at the location of the guide washer located between two successive channels.

In another embodiment of the invention, the support can be rotatably fixed to the guide ring, by riveting, by welding, by hot crimping, or by embedding.

In another embodiment of the invention, the guide washer may comprise at least two chutes, the tabs are mounted fitted on the guide washer at a location between the two chutes.

In another embodiment of the invention, the guide washer has a receiving surface of the support legs which extends substantially parallel to the axis of rotation.

In another embodiment of the invention, the end of the tab has a corresponding flat section. In another embodiment of the invention, the guide washer extends in a plane substantially perpendicular to the axis of rotation X, the support also extending in another plane substantially perpendicular to the axis of rotation X, the support being mounted on the guide washer so that their respective plane is merged.

In another embodiment of the invention, an inner peripheral flange of the support has a surface intended to be in contact with a corresponding surface of the guide washer. The surface of the inner peripheral flange is made in such a way that it is complementary to that corresponding to the guide washer. Such a complementarity of shapes makes it possible to ensure a stable connection between the support and the guide washer.

In another embodiment of the invention, the torsion damping device also comprises

second springs, the first springs and the second springs being arranged with each other in groups of two, and

a phasing member movable in rotation about the axis of rotation (X) for sequentially arranging the groups of first springs and second springs so that the first springs and the second springs deform in phase with each other; other.

The invention also relates to a hydrokinetic coupling apparatus comprising

an impeller wheel adapted to be rotated by means of a crankshaft,

a turbine wheel connected to an input shaft of a gearbox and adapted to be rotated by hydrokinetic coupling with the impeller wheel, and

a damping assembly as previously described. In one embodiment, the damper assembly is connected in a manner permanent to the turbine wheel and disengageably to the input shaft of the gearbox.

In another embodiment of the invention, the damping assembly is permanently connected to the turbine wheel and the input shaft of the gearbox.

In one embodiment of the invention, the apparatus further comprises

a cover connected to the impeller wheel and adapted to be connected to the crankshaft,

an outlet hub connected to the turbine wheel and adapted to be connected to an input shaft of a gearbox, and

a piston adapted to connect the cover to the output hub, the damper assembly being connected to the output hub and the piston.

In one embodiment of the invention, the piston forms a means of axial retention of the first springs.

In another embodiment of the invention, the piston also forms a means of axial retention of the second springs.

According to one aspect of the invention, the connection of the support of the masses on the guide ring is radially out of the kinematic operating zone masses.

According to another aspect of the invention, the radially inner circumferential edge of the mass support is less or substantially equal to a radially outer circumferential edge of the guide ring. Thus, because of such a configuration of the support with respect to the guide washer, the following connection links may be possible: welding of the mass support to the guide ring, embedding of the mass support to the guide ring clipping of the support of masses to the guide washer, riveting of the support of masses to the guide washer.

Moreover, with such a configuration of the support of masses relative to the guide washer, it is possible that the mass support can take the spring support function of the damper.

Finally, the radially inner circumferential edge of the mass support also makes it possible to prevent the guide washer from opening dynamically.

The invention will be better understood and other details, characteristics and advantages of the invention will appear on reading the following description given by way of non-limiting example with reference to the accompanying drawings in which:

FIG. 1 represents a damping assembly, according to a first embodiment of the invention;

- Figure 2 shows a support of the damper assembly of Figure 1;

FIG. 3 represents a damping assembly, according to a second embodiment of the invention;

Figure 4 shows a support of the damper assembly of Figure 3;

FIG. 5 represents a damping assembly, according to a third embodiment of the invention;

FIG. 6 represents a damping assembly, according to a fourth embodiment of the invention;

FIGS. 7a to 7c show a damping assembly, according to a fifth embodiment of the invention; Figure 7d shows an annular web according to the fifth embodiment of the invention;

Figure 8a shows a damping assembly according to a sixth embodiment of the invention;

- Figure 8b shows an annular web according to the sixth embodiment of the invention;

FIG. 9 represents an exploded damping assembly according to a seventh embodiment of the invention;

FIG. 10 represents a damping assembly according to an eighth embodiment of the invention;

FIG. 11 represents a damping assembly according to a ninth embodiment of the invention;

FIG. 12 represents a damping assembly according to a tenth embodiment of the invention

- Figure 13 shows an exploded damper assembly according to Figure 10;

FIG. 14 represents a damping assembly according to an eleventh embodiment of the invention;

FIG. 15 is an exploded view of the damping assembly according to FIG. 14,

FIG. 16 represents a damping assembly according to a twelfth embodiment of the invention, and

FIG. 17 represents a damping assembly according to a thirteenth embodiment of the invention.

Figure 1 illustrates a damper assembly 100 for a motor vehicle according to a first embodiment of the invention. The damping assembly 100 is housed inside a chamber 101 of a torque converter 102. The torque converter 102 is formed by a cover 103 adapted to be connected to a motor shaft (not shown) by the intermediate of a bolt 104 mounted on the cover 103. The torque converter 102 also comprises an impeller wheel 105 connected in attachment to the cover 103, a turbine wheel 106 connected to an outlet hub 123 and adapted to be connected hydrodynamically in rotation to the impeller wheel 105. The output hub 123 is rotatably connected to the turbine wheel 106, for example, by riveting or welding. The output hub 123 is also adapted to be connected in rotation to an input shaft of a gearbox (not shown). The torque converter 102 also comprises a locking clutch 107 formed by a piston 107 axially displaceable along an axis X of rotation of the torque converter 102 for coupling to the motor shaft via the cover 103.

In this example Figure 1, the hub 123 and the piston 107 are placed contiguous to each other on their respective radially inner portion.

The damping assembly 100 comprises a guide ring 108 rotatably connected to the input shaft of the gearbox via its connection to the output hub 123, a sail 109 connected in disengageable manner to the drive shaft via the piston 107 and the cover 103 and first springs 1 10 arranged in series one after the other and acting against the rotation of the guide washer 108 relative to the web 109 and vice versa. The web 109 is fixed in rotation to the piston 107, the piston 107 being able to be rotatably connected to the cover 103 for coupling with the motor shaft, after axial displacement in the direction of the cover 103.

The guide washer 108 forms a single piece. This single piece can be monobloc or made in several elements (not shown). According to the example in FIG. 1, the guide washer 108 forms a single piece in a single block and has a planar and circular inner peripheral part and an outer peripheral part circumferentially forming a series of curved surfaces or troughs 1 14 for receiving the first springs 1 10. These chutes 1 14 serve more precisely to retain the first springs 1 10 radially and at least partially axially. Between each chute 1 14, the guide ring 108 has a surface 1 15 which can be slightly curved circumferentially. It is against this surface 1 15 that are mounted radially and circumferentially bearing the first springs 1 10. The guide ring 108 has zones with functions that are distinct from one another.

The guide washer 108 is attached to the outlet hub 123 but could be attached directly to the turbine wheel 106.

The damper assembly 100 also comprises a pendulum damping device 1 1 1. The pendulum damping device 1 1 1 comprises a support 1 12 and flyweights 1 13 arranged movable on either side of the support 1 12.

According to the example 1, the support January 12 is mounted welded to the guide washer 108, at a location on the chute 1 14. Alternatively, the support 1 12 could also be welded to the surface 1 15.

Figure 2 illustrates the support 1 12 shown in Figure 1. The weights 1 13 are represented. The weights 1 13 are connected in pairs by means of at least one spacer (not shown) while being able to move along the support by means of at least one roller (not shown) housed in the through the support and connected to the two weights facing each other on either side of the support 1 12.

The support 1 12 also has an inner peripheral flange 1 16 intended to be mounted around the guide washer 108. The inner periphery flange 1 16 of the support 1 12 has lugs 1 17 which extend radially towards the axis X. In the example in FIG. 2, the support 1 12 has three tabs 1 17 regularly distributed. But the support 1 12 could include more or less. The inner peripheral flange 1 16 of the support 1 12 also has between its lugs 1 17 zones 1 18. The support 1 12 is placed on and around the guide washer 108 with its lugs 1 17 facing and in contact with the surfaces 1 15 and with its areas 1 18 located at the glance and in contact with the troughs 1 14. The support 1 12 may be fixed by welding, or by embedding or by force fitting.

In the example 1, the support January 12 is fixed by welding S1. More specifically, each of the zones 1 18 of the inner peripheral flange 1 16 of the support 1 12 is welded to at least one of the chutes 1 14. The lugs 1 17 are placed in abutment against the surface 1 15 of the guide washer 108. the support 1 12 could also be welded at least partially along the surface 1 15 by means of its lugs 1 17.

Other methods of attachment can be used, for example the embedding of the support on the guide ring. These other modes of attachment will be described in more detail along the description of the different embodiments of the invention.

FIG. 3 illustrates a damping assembly 200 for a motor vehicle according to a second embodiment of the invention. The damping assembly 200 is also housed inside a chamber 201 of a torque converter 202. As for the torque converter 102 of FIG. 1, the torque converter 202 is formed by a cover 203 adapted to be connected to a motor shaft (not shown) by means of a bolt 204 mounted on the cover 203. The torque converter 202 also comprises an impeller wheel 205 connected in attachment to the cover 203, a turbine wheel 206 connected to an outlet hub 223 and adapted to be connected hydrodynamically in rotation to the impeller wheel 205. The output hub 223 is rotatably connected to the turbine wheel 206, for example by riveting or welding. The output hub 223 is also adapted to be connected in rotation to an input shaft of a gearbox (not shown). The torque converter 202 also includes a locking clutch 207 formed by a piston 207 axially displaceable along an axis X of rotation of the torque converter 202 for coupling to the motor shaft (not shown) via the cover 203. In this example Figure 3, the outlet hub 223 and the piston 207 are placed contiguous to each other on their respective radially inner portion.

The damping assembly 200 comprises a guide washer 208 connected to the input shaft of the gearbox via its connection to the output hub 223, a sail 209 disengageably coupled to the motor shaft via the piston 207 and the cover 203 and first springs 210 arranged in series one after the other and acting against the rotation of the guide washer 208 relative to the web 209 and vice versa. The web 209 is rotatably attached to the piston 207, the piston 207 being able to be rotatably connected to the cover 203 for coupling with the motor shaft via the cover 203. The guide washer 208 could also be connected in rotation directly on the turbine wheel 206.

The damping assembly 200 also comprises a pendulum damping device 21 1. The pendulum damping device 21 1 comprises a support 212 and flyweights 213 arranged movable on either side of the support 212.

The support 212 is mounted welded to the guide washer 208 at S2. The guide washer 208 also has a curved outer periphery 214 forming troughs 214 and radial slots 215.

The support 212 is also directly attached to the output hub 223.

Figure 4 illustrates the support 212 shown in Figure 3. The weights 213 are shown. The weights 213 are connected in pairs by means of at least one spacer (not shown) while being able to move along the support by means of at least one roller (not shown) housed through support and connected to the two weights facing each other on either side of the support.

The support 212 also has an inner peripheral edge 216 with tabs 217 which extend regularly and radially towards the axis X. Three legs 217 are also shown. These tabs 217 are longer than those 17 illustrated in FIG. 2. Indeed, the tabs 217 of the example FIGS. 3 and 4 serve as radial and circumferential support of the first springs 210 in place of the guide washer 208. In addition, the tabs 217 are integral at their end with a ring 219. Between the tabs 217, the inner peripheral edge 216 also has zones 218. The tabs 217 are intended to extend through the slots 215 of the washer 208. The support 202 is welded at S2 by welding the zone 218 to the guide washer 208, at the troughs 214.

Figure 5 illustrates a third embodiment of the invention. FIG. 5 illustrates a damping assembly 300 for a motor vehicle which is housed inside a chamber 301 of a torque converter 302. The torque converter 302 is formed by a cover 303 adapted to be connected to a shaft motor (not shown) via a bolt 304 mounted on the cover 303. The torque converter 302 also includes an impeller wheel 305 connected to the cover 303, a turbine wheel 306 connected to a hub 323 outlet and adapted to be hydrodynamically connected in rotation to the impeller 305. The output hub 323 is rotatably connected to the turbine wheel 306, for example, by riveting or welding. The output hub 323 is also adapted to be connected in rotation to an input shaft of a gearbox (not shown). The torque converter 302 also includes a lock clutch 307 formed by a piston 307 axially displaceable along an axis X of rotation of the torque converter 302 for coupling to the motor shaft via the cover 303.

In this example Figure 5, the outlet hub 323 and the piston 307 are placed contiguous to each other on their respective radially inner portion.

The damping assembly 300 comprises a guide washer 308 rotatably connected to the input shaft of the gearbox via the output hub 323, a web 309 disengageably coupled to the motor shaft via the piston 307 and the cover 303 and first springs 310 arranged in series one after the other and acting against the rotation of the guide ring 308 relative to the web 309 and vice versa. The web 309 is rotatably attached to the piston 307, the piston 307 being able to be rotatably connected to the input shaft of the gearbox after axial displacement towards the cover 303.

The guide washer 308 could also be directly connected to the turbine wheel 306.

The guide washer 308 forms a single piece. This single piece can be monobloc or made in several elements (not shown). According to the example 5, the guide ring 308 forms a single piece of a single block and has a flat circular peripheral inner portion and an outer peripheral portion circumferentially forming a series of curved surfaces or troughs 314 for receiving the first springs. . These chutes 314 serve more precisely to retain the first springs 310 radially and at least partially axially. Between each chute 314, the guide washer 308 has a flat surface 315 extending radially about the axis X. It is on this surface 315 that the first springs 310 are mounted radially and circumferentially.

The damping assembly 300 also comprises a pendulum damping device 31 1. The pendulum damping device 31 1 comprises a support 312 and flyweights 313 arranged movable on either side of the support 312. According to the example in FIG. 3, the support 312 is mounted riveted on the guide washer 308, to a place between two chutes 314.

Figure 6 illustrates the support 312 shown in Figure 5. The weights 313 are shown. The weights 313 are connected in pairs by means of at least one spacer (not shown) and are able to move along the support by via at least one roller (not shown) housed through the support and connected to the two counterweights facing each other.

The support 312 has a circular flat shape and also on its inner radial periphery an inner peripheral flange 316 intended to be mounted on the guide washer 308. The inner periphery rim

316 of the support 312 has tabs 317 which extend radially towards the axis X. In the example 6, the support 312 has three legs

317 regularly distributed. But the support 312 could include more or less. The tabs 317 are intended to be positioned opposite and in contact with the surface 315 of the guide washer 308.

This third embodiment of the invention differs from the second embodiment in that the support 312 is mounted riveted on the surface 315 of the guide washer 308. For this, at least one rivet 320 is used to connect the rim internal device 316 of the support 312 to the guide washer 308. The support 312 has a face 321 close to the piston 307. The support 312 is riveted on the face 321 near the piston 307. The rivet 320 is inserted axially through the support 312 and the guide washer 308 by its surface 315.

Figure 7 illustrates a fourth embodiment of the invention. FIG. 7 illustrates a damping assembly 400 for a motor vehicle which is housed inside a chamber 401 of a torque converter 402. The torque converter 402 is formed by a cover 403 adapted to be connected to a shaft motor (not shown) via a bolt 304 mounted on the cover 403. The torque converter 402 also comprises an impeller wheel 405 connected in attachment to the cover 403, a turbine wheel 406 rotatably connected to a outlet hub 423 and adapted to be hydrodynamically connected in rotation to the impeller wheel 405. The output hub 423 is rotatably connected to the turbine wheel 406, for example, by riveting or welding. The output hub 423 is also adapted to be connected in rotation to an input shaft of a gearbox (not shown). The torque converter 402 also comprises a locking clutch 407 formed by a piston 407 axially displaceable along an axis X of rotation of the torque converter 402 for coupling to the motor shaft via the cover 403.

In this example Figure 7, the outlet hub 423 and the piston 407 are placed contiguous to each other on their respective radially inner portion.

The damping assembly 400 comprises a guide washer 408 rotatably connected to the input shaft of the gearbox via the output hub 423, a sail 409 disengageably coupled to the drive shaft via the piston 407 and the cover 403 and first springs 410 arranged in series one after the other and acting against the rotation of the guide ring 408 relative to the web 409 and vice versa. The web 409 is rotatably attached to the piston 407, the piston 407 being able to rotate with the cover 403 for coupling to the motor shaft after axial displacement towards the cover 403.

The guide washer 408 could also be directly connected to the turbine hub 406.

The guide washer 408 forms a single piece. This single piece can be monobloc or made in several elements (not shown). According to the example 7, the guide washer 308 forms a single piece of a single block and has a planar and circular inner peripheral portion and an outer peripheral portion circumferentially forming a series of curved surfaces or troughs 414 for receiving the first springs. . These troughs 414 serve more precisely to retain the first springs 410 radially and at least partially axially. Between each chute 414, the guide washer 408 has a flat surface 415. It is on this surface 415 that the first springs 410 are mounted radially and circumferentially.

The damping assembly 400 also comprises a pendulum damping device 41 1. The pendulum damping device 41 1 comprises a support 412 and flyweights 413 arranged movable on either side of the support 412. As for the previous example the support

412 is mounted riveted on the guide washer 408 at a location between two troughs 414.

The weights 413 are connected in pairs by means of at least one spacer (not shown) and are able to move along the support via at least one roller (not shown) housed through the support and connected to the two weights facing each other.

The support 412 also has on its inner radial periphery an internal peripheral flange 416 intended to be mounted on the guide washer 408. The inner periphery flange 416 of the support 412 has tabs 417 which extend radially towards the axis X. In the example, the support 412 has three tabs 417 regularly distributed. But the 412 support could include more or less. The tabs 417 are intended to be positioned facing and in contact with the guide ring 408.

The support 412 can be fixed by welding, or by embedding or by force fitting.

In the example in FIG. 7, the support 412 is fixed by riveting. More specifically, the support 412 is mounted welded to the surface 415 of the guide washer 408. The tabs 417 are placed in axial abutment against the surface 415 of the guide washer 408.

Unlike the example 5, the support 412 is fixed on the guide washer 408 on an opposite face 422 to a face 421 near the piston 407. The support 412 is then stamped so that the connection of the support 412 on the guide ring 408 is made axially offset and in the opposite direction to the piston 407 relative to the radially inner periphery of the support 412. At least one rivet 420 is disposed along the inner radial periphery of the support 412. This rivet 420 is inserted axially through the guide washer 408 and the support 412. FIGS. 8a, 8b, 8c, 9a, 9b illustrate alternative fastening of the support on the guide washer.

Figure 8a shows a perspective view of a face of a support 512 intended to face a piston (here not shown). Figure 8b shows a perspective view of the same support 512 with another face intended to be opposite to the piston. In this example, the support 512 is mounted fixed on a guide ring 508 by crimping, for example by hot crimping. For this, the guide washer 508 comprises hooks 523 adapted to be inserted in interstices 524 of complementary shape formed by the support 512. In this example, the support 512 has an inner peripheral rim 516 with tabs 517. radially extending towards the X axis. In the example, the interstices 524 are formed at the tabs 517 and are complementary in shape to those of the hooks 523 formed by the guide washer 508.

8c is a view similar to that of FIG. 8a with the presence of an annular web 509 which has curved radial arms 525 intended to be inserted in a free space 526 located between the inner peripheral edge of the support 512 and the washer of FIG. guide 508, between two first spring 510.

FIG. 9a illustrates, in a sixth embodiment of the invention, another method of fixing a support 612 on a guide washer 608. In this example, the fixing of the support 612 is carried out by extrusion of a rivet 620 of the support 612 on the guide washer 608. In this example 9a the guide ring 608 comprises a peripheral chute 626 for receiving first springs 610. The guide ring 608 also comprises radial tongues 625 traversed by extrusion material for its connection to the support 612. Figure 9b is shown an annular web 609 comprising radial tabs 627 intended to be superimposed on the tongues 625 of the guide washer 608. The guide washer 608 and the web 609 have embossed so that that the tabs 625 and tabs 627 are formed in a plane different from the rest respectively of the guide ring 608 and the web 609.

Figure 10 illustrates a seventh embodiment of the invention. In this embodiment, a guide ring 708 and a support 712 are mounted one inside the other by clipping the support 712 on the guide ring 708. For this, the guide ring 708 has on its periphery outer periphery an annular axial peripheral flange 728 coaxial with the axis of rotation X. This annular peripheral flange 728 has at least one flexible fastener 729 adapted to be snapped onto material advancements 730 formed by the support 712. The guide washer assembly 708 and support 712 is then processed after assembly.

Figure 11 illustrates an eighth embodiment of the invention. In this embodiment, a guide ring 808 also comprises an annular and axial peripheral flange 828. On this flange 828 is formed at least one slot 831 through which is inserted an advance of material 830 formed by the support 812. L Assembly is accomplished by embedding or collapsing material by hot crimping the material advancement 830 into the guide washer 808.

FIG. 12 illustrates a ninth embodiment of the invention wherein a support 912 is recessed under force through a guide ring 908. To do this, the guide ring 908 has on an annular and axial peripheral rim 928 recesses 932 within which inserts of materials 933 formed by the support 912 are inserted. The recesses 932 are local deformations of the guide washer 908 in the direction of the X axis.

Figures 13,14 illustrate a partial damping assembly 1000 comprising first springs 1001 and second springs 1002 arranged in series or LTD ("Long Travel Damper") dampers.

The first springs 1001 and the second springs 1002 are arranged with each other in groups of two. A phasing member 1003 rotatable about the axis of rotation (X) is provided to arrange in series the groups of first springs 1001 and second springs 1002 so that the first springs and the second springs deform into phase with each other. For this, there is provided a phasing washer 1003 which has 3 radial extensions 1004 between which are placed a first spring 1001 and a second spring 1002.

The damping assembly 1000 comprises a guide ring 1008 and a support 1012 which is inserted in force on the guide ring 1008. The support 1012 has on an inner peripheral edge 1016 radial tabs 1017 extending in the direction of an axis X rotation of the set. The guide ring 1008 comprises an external peripheral rim curved to form a chute 1014 for receiving the first springs 1001 and the second springs 1002. The guide ring 1008 comprises in this example 3 chutes such as 1014. Between each trough 1014, the rim outer circumference of the guide washer forms notches 1015.

The assembly method of such an assembly is carried out as follows. The support 1012 is mounted in force on the guide ring 1008 by embedding the radial tabs 1017 in the notches 1015 of the guide washer 1008. Then the phasing washer 1003 is inserted through the notches 1015. The phasing washer 1003 is then rotated so that its extensions 1004 are located inside the troughs 1014. Thus the phasing washer 1003 is held axially by the flanges of the trough 1014.

The rotation of the phasing washer 1003 is between 40 and 80 °. In a preferred example, the phasing washer 1003 is rotated by 60 °, which corresponds to a central position of the radial extensions 1004 of the phasing washer 1003 with respect to the chute 1014. Then the first springs 1001 and the second springs 1002 are inserted inside the troughs 1014. Then the veil 1009 is inserted at 1008 can be installed first and then the first springs 1001 and the second springs 1002.

Figures 14 and 15, the assembly is similar to that of Figures 12 and 13. Figures 14 and 15 partially illustrate a damper assembly

2000 including a guide ring 2008, first springs

2001 and second series 2002 springs or LTD (Long Travel Damper) dampers.

The first springs of 2001 and the second springs of 2002 are arranged with each other in groups of two.

A phasing member 2003 movable in rotation about the axis of rotation (X) is provided for sequentially arranging the groups of first springs 2001 and second springs 2002 so that the first springs and the second springs deform in phase with each other. For this, there is provided a 2003 phasing washer which has 3 radial extensions 2004 between which are placed a first spring 2001 and a second spring 2002.

The 2000 shock absorber assembly comprises a 2008 guide washer and a 2012 support which is inserted in force on the guide ring 2008. The support 2012 has on a peripheral inner edge 2016 2017 radial pulleys extending in the direction of an axis rotation of the whole. The 2008 guide ring has an external peripheral edge curved to form a chute 2014 to receive the first springs 2001 and the second springs 2002. The guide ring 2008 includes in this example 3 chutes such as 2014. Between each chute 2014, the rim outer circumference of the guide ring forms undistorted areas 2015.

The assembly method of such an assembly is carried out as follows. The 2012 support is mounted in force on the 2008 guide washer by embedding the radial tabs 2017 in the undeformed areas 2015 of the guide washer 2008. Then the washer of phasage 2003 is inserted through the undeformed zones 2015. The phasing washer 2003 is then rotated so that its 2004 extensions are located inside the chutes 2014. Thus the phasing washer 2003 is retained axially by the edges of the chute 2014.

The rotation of the phasing washer 2003 is between 40 and 80 °. In a preferred example, the phasing washer 2003 is rotated by 60 °, which corresponds to a central position of the 2004 radial extensions of the phasing washer 2004 with respect to the chute 2014. Then the first springs 2001 and the second springs 2002 are inserted inside the trunking 2014. Then the 2009 veil is inserted through the 2008 guide washer by inserting the radial extension 2032 formed by the veil 2009 through the undeformed zones 2015 of the guide ring 2008. As a variant, the 2009 veil can be installed first and then the first 2001 springs and the second 2002 springs are inserted.

In all the examples listed above, the guide washer could be formed in at least two parts, the first forming an outer annular portion forming the chutes and the second forming an inner annular portion adapted to be fixed in rotation to the output hub. . The outer annular portion and the inner annular portion are intended in this case to be linked in rotation.

In the example Figure 16 is illustrated a damper assembly 3000 for a motor vehicle according to a twelfth embodiment of the invention. The damping assembly 3000 is housed inside a chamber 3001 of a torque converter 3002. The torque converter 3002 is formed by a cover 3003 adapted to be connected to a motor shaft (not represented) by the A torque converter 3004 is mounted on the cover 3003. The torque converter 3002 also has an impeller wheel 3005 connected to the cover 3003, a turbine wheel 3006 connected to an output hub 3023 and connectable The output hub 3023 is rotatably connected to the turbine wheel 3006, for example, by riveting or welding. The output hub 3023 is also adapted to be connected in rotation to an input shaft of a gearbox (not shown). The torque converter 3002 also includes a lock clutch 3007 formed by a piston 3007 axially displaceable along an axis X of rotation of the torque converter 3002 for coupling to the motor shaft via the cover 3003.

In this example Figure 16, the hub 3023 and the piston 3007 are placed spaced apart from each other. A bearing 3024 is interposed axially between the output hub 3023 and the piston 3007. This bearing 3024 is coupled to the output hub 3023 and the piston 3007. The bearing 3024 is arranged radially between the piston 3007 and the input shaft of the gearbox (not shown).

The damper assembly 3000 comprises a guide washer

3008 connected in rotation to the input shaft of the gearbox via its connection to the output hub 3023, a web 3009 releasably connected to the drive shaft via the piston 3007 and the cover 3003 and first springs 3010 arranged in series one after the other and acting against the rotation of the guide washer 3008 relative to the web 3009 and vice versa. In this example, the guide washer 3008 is formed in two parts 3008i and 30082. The first upper portion 3008i circumferentially forms a curved surface or trough for receiving the first springs 3010. This trough is used more specifically to retain the first springs 3010 radially and at least partially axially. The second portion 3ΟΟ8 ₂ bottom forms a circumferential support to the first spring 3010. This second portion 3ΟΟ8 ₂ forms the output hub 3023 adapted to be connected in rotation to the input shaft of the gearbox. The first part 3008i and the second part 3ΟΟ8 ₂ each form a part exerting a function distinct from each other. The first part 3008i is placed between the turbine wheel 3006 and the second part 3008 ₂ or the output hub 3023.

The web 3009 is rotatably attached to the piston 3007, the piston 3007 being adapted to rotate with the lid 3003 for coupling with the motor shaft, after axial displacement towards the lid 3003.

The damping assembly 3000 also comprises a pendulum damping device 301 1. The pendulum damping device 301 1 comprises a support 3012 and flyweights 3013 arranged movable on either side of the support 3012. The support 3012 is rotatably connected to the first portion 3008i of the guide washer 3008.

In the example Figure 17 is illustrated a damping assembly 4000 for a motor vehicle according to a thirteenth embodiment of the invention. The damping assembly 4000 is housed inside a chamber 4001 of a torque converter 4002. The torque converter 4002 is formed by a cover 4003 adapted to be connected to a motor shaft (not shown) by the A torque converter 4002 is mounted on the lid 4003. The torque converter 4002 also comprises an impeller wheel 4005 connected in attachment to the lid 4003, a turbine wheel 4006 connected to an outlet hub 4023 and capable of being connected hydrodynamically. in rotation with the impeller wheel 3005. The output hub 4023 is rotatably connected to the turbine wheel 4006, for example, by riveting or welding. The output hub 4023 is also adapted to be connected in rotation to an input shaft of a gearbox (not shown). The torque converter 4002 also includes a lock clutch 4007 formed by a piston 4007 axially displaceable along an axis X of rotation of the torque converter 4002 for coupling to the motor shaft via the lid 4003.

In this example Figure 17, the hub 4023 and the piston 7007 are placed apart from each other. A bearing 4024 is interposed axially between the output hub 4023 and the piston 4007. This bearing 4024 is attached to the output hub 4023 and the piston 4007. The bearing 4024 is interposed radially between the piston 4007 and the input shaft of the gearbox (not shown). This bearing 4024 differs from the bearing 3024 of the example Figure 16 because of its greater thickness, allowing a greater distance of the output hub 4023 relative to the piston 4007.

The damping assembly 4000 comprises a guide ring 4008 rotatably connected to the input shaft of the gearbox via its connection to the output hub 4023, a sail 4009 connected in disengageable manner to the drive shaft via the piston 4007 and the lid 4003 and first springs 4010 arranged in series one after the other and acting against the rotation of the guide washer 4008 relative to the web 4009 and vice versa. In this example, the guide ring 4008 is also formed in two parts 4008i and 40082. The first upper portion 4008i circumferentially forms a curved surface or trough for receiving the first springs 4010. This trough is used more specifically to retain the first springs 4010 radially. and at least partially axially. The second lower portion 4ΟΟ8 ₂ forms a circumferential support for the first spring 4010. This second portion 4ΟΟ8 ₂ forms the output hub 4023 adapted to be connected in rotation to the input shaft of the gearbox. The first part 4008i and the second part 4ΟΟ8 ₂ each form a part exerting a function distinct from each other.

The first part 4008i is placed between the turbine wheel 4006 and the second part 4ΟΟ8 ₂ or the output hub 4023.

The web 4009 is rotatably attached to the piston 4007, the piston 4007 being able to be rotatably connected to the lid 4003 for coupling with the motor shaft, after axial displacement towards the lid 4003.

The damping assembly 4000 also comprises a pendulum damping device 4011. The pendular damping device 4011 comprises a support 4012 and flyweights 4013 arranged movable on either side of the support 4012. The support 4012 is connected in rotation to the first portion 4008i of the guide ring 4008.

Claims

1 - Damper assembly (100,200,300,400,3000,4000) for a motor vehicle, comprising

a torque input element (108,208,308,408,3008,4008),

a torque output element (109,209,309,409,3009,4009), the torque input element and the torque output element being arranged coaxially with respect to one another about an axis of rotation (X) of the damper assembly,

a torsion damping device (1 1 1, 21 1, 31 1, 41 1, 301 1, 401 1) disposed between the torque input member and the torque output member and comprising first springs (1 10,210,310,410,3010,4010) acting against rotation of the torque input member relative to the torque output member relative to each other,

- A pendular damping device (1 1 1, 21 1, 31 1, 41 1, 301 1, 401 1) comprising a support (1 12,212,312,412,3012,4012) and weights (1 13,213,313,413,3013,4013) mounted movable on the support, the pendular damping device being connected to the torque input element, characterized in that

- The support forms an annular plate adapted to be positioned without play around the guide ring.

2 - damping assembly according to claim 1, characterized in that the torque input member is formed by a single guide washer.

3 - damping assembly according to one of claims 1 to 2, characterized in that the support is connected in fixing on a radially outer peripheral edge (1 14,1 15,214,215,314,315,414,415) of the guide ring. 4 - damping assembly according to one of claims 1 to 3, characterized in that the guide washer comprises at least one chute (1 14,214,314,414) for receiving the first springs, the support being fixed in rotation to the guide ring at least at the chute.

5 - damping assembly according to claim 4, characterized in that the support has a radially inner peripheral edge (1 16,216,316,416) with lugs (1 17,217,317,417) extending radially towards the axis of rotation of the assembly, the support being attached to the guide ring via an area of the radially inner peripheral edge of the support located between two successive legs.

6 - damping assembly according to one of claims 1 to 3, characterized in that the guide washer comprises at least two chutes for receiving the first springs, the support being fixed in rotation to the guide ring at a location of the washer guiding between the two chutes.

7 - damping assembly according to claim 6, characterized in that the support has a radially inner peripheral edge (1 16,216,316,416) with lugs (1 17,217,317,417) extending radially towards the axis of rotation of the assembly, the support being fixed to the guide washer via the legs.

8 - damping assembly according to one of claims 1 to 7, characterized in that the support is fixed in rotation to the guide ring by riveting, by welding, hot crimping or by embedding.

9 - damping assembly according to one of the preceding claims, characterized in that the torsion damping device also comprises

second springs (1002,2002), the first springs (1001, 2001) and the second springs being arranged with each other in groups of two, and a phasing member (1003, 200) movable in rotation about the axis of rotation (X) for sequentially arranging the groups of first springs and second springs so that the first springs and the second springs are deformed into phase with each other.

10 - Hydrokinetic coupling apparatus

(102,202,302,402,3002,4002) comprising

an impeller wheel (105,205,305,405,3005,4005) adapted to be rotated by means of a crankshaft,

a turbine wheel (106,206,306,406,3006,4006) adapted to be rotated by hydrokinetic coupling with the impeller wheel, and

a damping assembly according to one of the preceding claims.

Apparatus according to claim 10, further comprising

- a cover (103,203,303,403,3003,4003) connected to the impeller wheel and adapted to be connected to the crankshaft,

an output hub (123,223,323,423,3023,4023) connected to the turbine wheel and adapted to be connected to an input shaft of a gearbox, and

- A piston (107,207,307,407,3007,4007) adapted to connect the cover to the output hub, the damper assembly being connected to the output hub and the piston.