GB2123925A - Clutch disc for a motor vehicle friction clutch - Google Patents
Clutch disc for a motor vehicle friction clutch Download PDFInfo
- Publication number
- GB2123925A GB2123925A GB08316812A GB8316812A GB2123925A GB 2123925 A GB2123925 A GB 2123925A GB 08316812 A GB08316812 A GB 08316812A GB 8316812 A GB8316812 A GB 8316812A GB 2123925 A GB2123925 A GB 2123925A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- hub
- cover
- discs
- axially
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 230000000717 retained effect Effects 0.000 claims 1
- 238000013016 damping Methods 0.000 abstract description 12
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- 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
- F16F15/121—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 using springs as elastic members, e.g. metallic springs
- F16F15/123—Wound springs
- F16F15/1238—Wound springs with pre-damper, i.e. additional set of springs between flange of main damper and hub
-
- 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
- F16F15/121—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 using springs as elastic members, e.g. metallic springs
- F16F15/1211—C-shaped springs
- F16F15/1212—C-shaped springs disposed around axis of rotation
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
A clutch plate (15) is secured fast with two cover discs (7, 9) mounted on a hub flange (5). Compression springs (39) stressable on relative rotation of the hub flange (5) and the cover discs (7, 9) damp torsional vibrations under load. Between the cover disc (7) and the hub flange (5) an expanding ring spring (19) is arranged which is fixed with its one end (21) to the disc (7) and its other end (23) to the hub flange (5). The spring (19) not only damps torsional vibrations but also generates an axial initial force which stresses the cover disc (9) through a friction ring (17) axially against the hub flange (5). The compression springs (39) are seated in windows (35) of discs (27, 29) which are mounted fast in rotation but with rotational play on the hub flange (5). A spring (45) between the discs (27, 29) braces the discs through friction rings (41, 43) against the cover discs (7, 9). The damping effect of the springs (39) and of the friction linings (41, 43) becomes effective only after the rotational play of the discs (27, 29) on the hub flange (5) is taken up. <IMAGE>
Description
SPECIFICATION
Clutch disc for a motor vehicle friction clutch
The invention relates to a clutch disc for a motor vehicle friction clutch having a torsional vibration damper.
Clutch discs frequently transmit vibrations generated by the engine of the motor vehicle to the gearing, which can lead to noise generation. In order to damp the vibrations and thus prevent the noise generation, the clutch disc is provided with a torsional vibration spring damper. Different vibrations can occur in different load ranges. Therefore damper springs with different spring properties are used which counteract the vibrations occurring in the different load ranges. To improve the damping properties friction dampers are additionally provided.
From Fed. Ger. Pub. Spec. 2907045 a clutch disc for a motor vehicle friction clutch is known on the clutch hub of which a clutch plate carrying the clutch friction linings is mounted for rotation through a limited angle in relation to the hub. The clutch plate is connected fast in rotation with two cover discs between which a flange of the hub engages. Helical compression springs are seated in windows of this hub flange and of the cover discs and on rotation of the clutch plate in relation to the hub are stressed and damp the torsional vibration. For the frictional damping of the torsional vibrations a friction disc is axially resiliently clamped in between the hub flange and one of the cover discs, the spring force being generated by a dashed spring.Moreover a circular ring spring is seated on the hub and can be added to increase the spring force in the case of increasing torsional vibration.
It is the problem of the invention to indicate a clutch disc with torsional vibration damper in which a spring provided for the spring damping of the torsional vibrations can be exploited at the same time to generate the axial pressure application force of a friction damping device.
According to the invention the cover discs including the clutch plate are mounted axially movably on the hub. Between the hub flange and one of the cover discs an expanding ring spring is braced. The one end of the expanding ring spring is here fixed to the hub or the hub flange while the other end of the expanding ring spring is fixed to the adjacent cover disc. On relative rotation of the hub and the cover discs the expanding ring spring is subjected to torsion stress, namely preferably in both directions of rotation about a middle position in which the expanding ring spring is relieved of stress in relation to the torsional vibrations.By reason of its axial twist present in the unloaded condition before installation in the clutch disc, the installed expanding ring spring braces the other cover disc through the friction ring against the hub flange and at the same time generates the friction force of the friction damping device.
On torsional stressing the expanding ring spring can open relatively wide so that by reason of the axial loading atilting moment can occur. In orderto counteract the tilting moment two expanding ring springs arranged offset by an angle of 180 are
preferably provided. The two expanding ring springs can be seated coaxially one within the other or axially side by side with suitable shaping.
Additional friction damping devices and additional spring dampers can be present which can be controlled in load dependence through free-play coupling. It is preferably provided that the expand
ing ring spring is effective along in idling operation and also alone generates the axial initial stress force of the friction damping device which is operative in idling operation.
The invention is to be explained in greater detail below by reference to the accompanying drawings, wherein:- Figure 7 shows a section through a clutch disc of a motor vehicle friction clutch;
Figure 2 shows a section through the clutch disc according to Figure 1 aiong a line ll-ll; Figure 3 shows a lateral elevation of an expanding ring spring utilised in the clutch disc according to
Figure 1;
Figure 4 shows a plan view of the expanding ring spring according to Figure 3 and
Figure 5shows a partial sectional view of another form of embodiment of a clutch disc for a motor vehicle friction clutch.
Figure 1 shows a clutch disc for a motor vehicle friction clutch having a hub 1 which is couplable fast in rotation in the usual way with gear shaft (not shown) which is rotatable about an axis 3 of rotation.
The hub 1 carries a radially protruding hub flange 5.
Cover discs 7,9 are rotatably mounted axially on both sides of the hub flange 5 on the hub 1, and are firmly connected with one another by means of a plurality of distance rivets 11 arranged in distribution on the circumference. A clutch plate 15 provided in the usual way with coupling friction linings is secured by means of rivets 13 to the cover disc 9.
The cover discs 7, 9 are slightly axially displaceable on the hub 1. A friction ring 17 is arranged between the cover disc 9 and the hub flange 5. The friction ring 17 engages beneath the inner edge of the cover disc 9 and serves at the same time as bearing bush for the cover disc 9. Between the cover disc 7 and the hub flange 5 there is seated an expanding ring spring 19 enclosing the hub 1, the ends of which spring carry angled-off portions 21 and 23 pointing axially away from one another, as may best be seen from Figure 3. The angled-off portion 21 engages in an aperture of the cover disc 7 while the angled-off portion 23 is fixed in an aperture of the hub flange 5. The ends of the expanding ring spring 19 are set out in the axial direction in relation to one another by a distance 25 in the uninstalled condition.In the installed condition the expanding ring spring 19 generates an axial initial stress force which presses the cover discS through the friction ring 17 against the hub flange 5. The expanding ring spring 19 in combination with the friction ring 17 forms a torsional vibration spring damper with friction damping properties, which is dimensioned for idling operation.
For operation under load an additional torsional vibration damper is provided. Between the cover discs 7 and 9 two annular discs 27, 29 are seated axially side-by-side which, as shown by Figure 2, carry projections 31 on their internal circumference which engage in axial grooves 33 on the circumference of the hub flange 5. The width of the projections 31 in the circumferential direction is less than the width of the grooves 33 so that the discs 27,29, with a predetermined rotational play, are mounted fast in rotation on the hub flange 5. The discs 27, 29 have a plurality of windows 35 arranged in distribution on the circumference which are aligned axially with one another and with windows 37 of the cover discs 7, 9.
In the windows 35, 37 there are seated helical compression springs 39 which are stressed on rotation of the cover discs 7,9 in relation to the hub 1 when the idle motion of the rotational play between the discs 27, 29 and the hub flange 5 is bridged over.
Between the cover disc 9 and the disc 29 there is seated a friction ring 41. A similar friction ring 43 is seated between the cover disc 7 and the disc 27.
Axially between the two discs 27, 29 there is seated a dished spring 45 which initially stresses the discs 27, 29 through the friction rings 43,41 against the cover discs 7, 9. The frictional damping device formed by the friction rings 41, 43 is operative in operation under load only when the idle travel of the rotational play between the discs 27, 29 and the hub flange 5 is bridged over.
As shown best by Figure 2, the distance rivets 11 pass through recesses 47 on the circumference of the discs 27, 29 which limit the rotation of the cover discs 7, 9 in relation to the discs 27, 29 and thus in relation to the hub 1 to a predetermined angle of rotation.
In Figure 1 a second expanding ring spring 49 is indicated in chain lines which likewise surrounds the hub 1 and is fixed with its ends on the one hand to the hub flange and on the other to the cover disc 7.
The ends of the expanding ring spring 49 are offset in angle through 180 in relation to the ends of the expanding ring spring 19 in order to compensate for tilting moments occurring at greater angles of rotation. In Figure 1 the expanding ring spring 49 has a larger diameter than the expanding ring spring 19 and for reasons of space encloses this spring.
However the expanding ring springs can also be arranged side-by-side.
Figure 5 shows another form of embodiment of a clutch disc for a motor vehicle friction clutch. The clutch disc again encloses a hub 51 which is couplable fast in rotation with a gear shaft (not shown) which is rotatable about a rotation axis 53.
Cover discs 57,59 are mounted rotatably through a limited angle of rotation on the hub 51 axially on both sides of a radially protruding hub flange 55 connected fast with the hub 51. The cover plates 57, 59 are firmly connected with one another by distance rivetes 61, the distance rivets 61 passing through recesses 63 on the circumference of the hub flange 55 and limiting the angle of rotation of the cover discs 57, 59 in relation to the hub 51. The cover disc 59 again carries a clutch plate 65 provided with coupling friction linings.
Axially between the cover disc 59 and the hub flange 55 there is arranged a friction ring 67 surrounding the hub 51. Axially between the other cover disc 57 and the hub flange 55 there is seated an expanding ring spring 69 looping around the hub 51, which in conformity with the expanding ring spring 19 according to Figure 1 is fixed with its one end 71 in the cover disc 57 and with its other end 73 in the hub flange 55. The expanding ring spring 69 not only damps torsional vibrations of the clutch plate 65 in relation to the hub 51 but also generates an axially acting initial stress force which initially stresses the cover disc 59 through the friction ring 67 against the hub flange 55 to generate a friction damping.
On the side of the cover disc 59 axially remote from the hub flange 55 there is provided a disc 75 annularly enclosing the hub 51 and carrying projections 77 on its internal circumference which engage in axial grooves 79 on the circumference of the hub 51. The projections 77 and the grooves 79 connect the disc 75 fast in rotation with the hub 51, while again analogously with the projections 31 and the grooves 33 according to Figure 2 a rotational play is present which must be bridged over before the disc 75 is caused to accompany a rotation of the clutch plate 65 in relation to the hub 51. On the side of the disc 75 axially remote from the cover disc 59 a presser plate 81 is arranged which annularly encloses the hub 51. A friction ring 83 is seated between the cover disc 59 and the disc 75. A further friction ring 85 is provided between the disc 75 and the presser plate 81.On its external circumference the presser plate 81 carries projections 87 which engage in apertures 89 of a spring mounting 91 secured to the cover disc 59 by means of the distance rivets 61. The projections 87 couple the presser plate 81 fast in rotation but axially displaceably with the spring mounting 91. Between the spring mounting 91 and the presser plate 81 a dished spring 93 is braced which presses the presser plate 81, through the friction ring 85, the disc 75 and the friction ring 83, against the cover disc 59. The disc 75 in combination with the friction rings 83,85 forms a friction damping device which is effective after the play of the projections 77 in the grooves 79 is bridged over.
The clutch disc according to Figure 5 can likewise comprise an additional torsion spring damper, suitable for operation under load, with a plurality of helical compression springs arranged in windows of the hub flange 55 and of the cover discs 57, 59, in conformity with the form of embodiment according to Figure 1. The helical compression springs are preferably seated with play in the windows in the circumferential direction of the hub flange 55, so that here again the torsional spring damper is effective only after this play is bridged over. Furthermore likewise in place of only one expanding ring spring 69 two expanding ring springs offset through an angle of 180 can be provided.
Claims (7)
1. Clutch disc for a motor vehicle friction clutc, having a hub (1; 51) defining a rotation axis (3; 53), a hub flange (5, 55) protruding radially from the hub (1; 51) and connected fast in rotation therewith, a clutch plate (15; 65) carrying clutch friction linings, two cover discs (7, 9; 57, 59) arranged on axially opposite sides of the hub flange (5; 55), connected fast in rotation with one another and with the clutch plate (15; 65) and mounted on the hub (1; 51) rotatably in relation thereto through a limited angle of rotation, several compression springs (39) retained between the cover discs (7, 9; 57, 59) and stressable on relative rotation of the hub flange (5; 55) and the cover discs (7,9; 57, 59), at least one ring spring (19,49; 69) looping around the hub (1; 51), acting on one of the cover discs (7; 57) on the one hand and the hub flange (5; 55) on the other and stressable on relative rotation of the hub flange (5; 55) and the cover discs (7, 9; 57, 59) and having a friction ring (17; 67) enclosing the hub (1; 51) between the hub flange (5; 55) and one of the cover discs (9; 59), characterised in that the cover discs (7, 9; 57, 59) are mounted axially movably on the hub (1; 51), in that the friction rings (17; 67) and the ring spring (19,49; 69) are arranged on axially opposite sides of the hub flange (5; 55) and in that the annular spring is formed as an axially resilient expanding ring spring (19,49; 69).
2. Clutch disc according to Claim 1, characterised in that a second friction ring (41,43; 83) is arranged between at least one disc (27, 29; 75) annularly enclosing the hub (1; 51) and the cover disc (7, 9; 59) axially adjacent to the disc (27, 29; 75), in that a spring device (45; 93) initially stresses the disc (27, 29; 75) through the second friction ring (41,43; 83) axially against the cover disc (7,9; 59) and in that the disc (27, 29; 75) is coupled fast in rotation but with predetermined limited rotational play with the hub (51) orthe hub flange (5).
3. Clutch disc according to Claim 2, characterised in that two discs (27, 29) coupled fast in rotation but with predetermined limited rotational play with the hub flange (5) are arranged axially between the cover discs (7, 9), in that an axially acting spring (45) is braced axially between the discs (27, 29) and in that a second friction ring (41,43) is arranged axially between each disc (27, 29) and the adjacent cover disc (7, 9).
4. Clutch disc according to Claim 2, characterised in that on the side of the disc (75) axially remote from the cover disc (59) there is arranged an axial presser disc (81) guided fast in rotation but axially movably on this cover disc (59) and axially between the presser disc (81) and the disc (75) a third friction ring (85) is arranged and in that an axially acting spring (93) initially stresses the presser disc (81) towards this cover disc (59).
5. Clutch disc according to one of Claims 2 to 4, characterised in that the hub (51) or the hub flange (5) comprises axiall grooves (33; 79) distributed over the circumference in which there engage, with play in the circumferential direction, radial projections (31; 77) of the disc (27, 29; 75).
6. Clutch disc according to one of Claims 1 to 5, characterised in that two expanding ring springs (19, 49) arranged offset in angle in relation to one another about the rotation axis through 180 are braced in between the cover disc (7) and the hub flange (5).
7. A motor vehicle clutch disc, substantially as herein described with reference to Figures 1, 2, 3, 4 and 5 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823227003 DE3227003A1 (en) | 1982-07-20 | 1982-07-20 | CLUTCH DISC WITH MULTI-STAGE TORSION DAMPER |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8316812D0 GB8316812D0 (en) | 1983-07-27 |
| GB2123925A true GB2123925A (en) | 1984-02-08 |
| GB2123925B GB2123925B (en) | 1985-09-25 |
Family
ID=6168797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08316812A Expired GB2123925B (en) | 1982-07-20 | 1983-06-21 | Clutch disc for a motor vehicle friction clutch |
Country Status (4)
| Country | Link |
|---|---|
| BR (1) | BR8303863A (en) |
| DE (1) | DE3227003A1 (en) |
| FR (1) | FR2530755B1 (en) |
| GB (1) | GB2123925B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2141206A (en) * | 1983-06-11 | 1984-12-12 | Automotive Products Plc | Friction clutch driven plate |
| EP0129978A1 (en) * | 1983-06-11 | 1985-01-02 | Automotive Products Public Limited Company | Friction clutch driven plate |
| EP0155785A1 (en) * | 1984-03-09 | 1985-09-25 | Automotive Products Public Limited Company | Friction clutch driven plate |
| GB2165336A (en) * | 1984-10-06 | 1986-04-09 | Fichtel & Sachs Ag | Clutch plate for a motor vehicle friction clutch |
| FR2581141A1 (en) * | 1985-04-25 | 1986-10-31 | Luk Lamellen & Kupplungsbau | ROTATION VIBRATION SHOCK ABSORBER COMPRISING AN ENERGY ACCUMULATOR AXIALLY SPREADING THE COAXIAL MODULES OF THE SHOCK ABSORBER TO ONE ANOTHER. |
| GB2193788A (en) * | 1986-08-15 | 1988-02-17 | Automotive Products Plc | Friction clutch driven plate |
| FR2603082A1 (en) * | 1986-08-21 | 1988-02-26 | Valeo | TORSION DAMPING DEVICE HAVING TWO COAXIAL PARTS COOPERATING WITH SPRINGS WITH CIRCUMFERENTIAL ACTION |
| DE3807133A1 (en) * | 1987-03-06 | 1988-09-15 | Valeo | Damper/flywheel for power transmission, particularly in motor vehicles |
| DE4419424A1 (en) * | 1993-06-23 | 1995-01-05 | Valeo | Standard friction subassembly, manufacturing process for such a subassembly, and torsional vibration damper with a subassembly of this type |
| US6682431B2 (en) * | 2000-09-29 | 2004-01-27 | Exedy Corporation | Damper mechanism |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3442705C3 (en) * | 1984-11-23 | 1998-12-10 | Luk Lamellen & Kupplungsbau | Torsional vibration damper |
| DE3448538C2 (en) * | 1984-11-23 | 1996-08-29 | Luk Lamellen & Kupplungsbau | Vehicle torsional vibration damper |
| DE19847764B4 (en) * | 1998-10-16 | 2007-04-12 | Zf Sachs Ag | friction clutch |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1562071A (en) * | 1978-02-28 | 1980-03-05 | Automotive Prod Co Ltd | Friction clutch driven plate |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2114247A (en) * | 1936-07-29 | 1938-04-12 | Sheldon B Cooper | Yieldable coupling |
| DE1680049C3 (en) * | 1968-01-27 | 1973-11-08 | Fichtel & Sachs Ag, 8720 Schweinfurt | Clutch disc with vibration damper |
| US4185728A (en) * | 1977-10-14 | 1980-01-29 | Borg-Warner Corporation | Clutch disc with variable deflection rate vibration damper |
| FR2489910A1 (en) * | 1980-09-10 | 1982-03-12 | Automotive Prod France | FRICTION CLUTCH DRIVE |
| DE3114282A1 (en) * | 1981-04-09 | 1982-11-04 | Fichtel & Sachs Ag, 8720 Schweinfurt | Torsion-damping device |
-
1982
- 1982-07-20 DE DE19823227003 patent/DE3227003A1/en active Granted
-
1983
- 1983-06-21 GB GB08316812A patent/GB2123925B/en not_active Expired
- 1983-07-12 FR FR8311923A patent/FR2530755B1/en not_active Expired
- 1983-07-19 BR BR8303863A patent/BR8303863A/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1562071A (en) * | 1978-02-28 | 1980-03-05 | Automotive Prod Co Ltd | Friction clutch driven plate |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4613030A (en) * | 1983-06-11 | 1986-09-23 | Automotive Products Plc | Friction clutch driven plate |
| EP0129978A1 (en) * | 1983-06-11 | 1985-01-02 | Automotive Products Public Limited Company | Friction clutch driven plate |
| AU577047B2 (en) * | 1983-06-11 | 1988-09-15 | Automotive Products Plc | Friction clutch driven plate |
| GB2141206A (en) * | 1983-06-11 | 1984-12-12 | Automotive Products Plc | Friction clutch driven plate |
| EP0155785A1 (en) * | 1984-03-09 | 1985-09-25 | Automotive Products Public Limited Company | Friction clutch driven plate |
| US4606450A (en) * | 1984-03-09 | 1986-08-19 | Automotive Products Plc | Friction clutch driven plate |
| FR2571456A1 (en) * | 1984-10-06 | 1986-04-11 | Fichtel & Sachs Ag | MOTOR VEHICLE FRICTION CLUTCH DISC |
| GB2165336A (en) * | 1984-10-06 | 1986-04-09 | Fichtel & Sachs Ag | Clutch plate for a motor vehicle friction clutch |
| FR2581141A1 (en) * | 1985-04-25 | 1986-10-31 | Luk Lamellen & Kupplungsbau | ROTATION VIBRATION SHOCK ABSORBER COMPRISING AN ENERGY ACCUMULATOR AXIALLY SPREADING THE COAXIAL MODULES OF THE SHOCK ABSORBER TO ONE ANOTHER. |
| GB2174478A (en) * | 1985-04-25 | 1986-11-05 | Luk Lamellen & Kupplungsbau | Torsional vibration damper with a force accumulator which clamps the coaxial assemblies of the damper axially together |
| GB2193788A (en) * | 1986-08-15 | 1988-02-17 | Automotive Products Plc | Friction clutch driven plate |
| GB2193788B (en) * | 1986-08-15 | 1990-05-30 | Automotive Products Plc | Friction clutch driven plate |
| FR2603082A1 (en) * | 1986-08-21 | 1988-02-26 | Valeo | TORSION DAMPING DEVICE HAVING TWO COAXIAL PARTS COOPERATING WITH SPRINGS WITH CIRCUMFERENTIAL ACTION |
| EP0258113A1 (en) * | 1986-08-21 | 1988-03-02 | Valeo | Torsion-damping device comprising two coaxial parts connected to tangentially acting springs |
| US4874350A (en) * | 1986-08-21 | 1989-10-17 | Valeo | Torsional damper device comprising two coaxial parts cooperating with circumferentially acting springs |
| DE3807133A1 (en) * | 1987-03-06 | 1988-09-15 | Valeo | Damper/flywheel for power transmission, particularly in motor vehicles |
| DE4419424A1 (en) * | 1993-06-23 | 1995-01-05 | Valeo | Standard friction subassembly, manufacturing process for such a subassembly, and torsional vibration damper with a subassembly of this type |
| DE4419424B4 (en) * | 1993-06-23 | 2005-05-19 | Valeo | A uniform friction assembly, manufacturing method for such assembly and torsional vibration damper with such assembly |
| US6682431B2 (en) * | 2000-09-29 | 2004-01-27 | Exedy Corporation | Damper mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3227003C2 (en) | 1990-08-23 |
| GB8316812D0 (en) | 1983-07-27 |
| FR2530755B1 (en) | 1986-12-19 |
| DE3227003A1 (en) | 1984-01-26 |
| BR8303863A (en) | 1984-02-28 |
| GB2123925B (en) | 1985-09-25 |
| FR2530755A1 (en) | 1984-01-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950621 |