WO2022017557A1 - Amortisseur de vibrations de torsion - Google Patents

Amortisseur de vibrations de torsion Download PDF

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Publication number
WO2022017557A1
WO2022017557A1 PCT/DE2021/100532 DE2021100532W WO2022017557A1 WO 2022017557 A1 WO2022017557 A1 WO 2022017557A1 DE 2021100532 W DE2021100532 W DE 2021100532W WO 2022017557 A1 WO2022017557 A1 WO 2022017557A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
sealing element
spring
torsional vibration
vibration damper
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.)
Ceased
Application number
PCT/DE2021/100532
Other languages
German (de)
English (en)
Inventor
Pascal Strasser
Philippe Schwederle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to CN202180039093.7A priority Critical patent/CN115768996A/zh
Priority to EP21739552.4A priority patent/EP4185788A1/fr
Publication of WO2022017557A1 publication Critical patent/WO2022017557A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F16F15/131—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
    • F16F15/13142—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 the method of assembly, production or treatment
    • 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
    • 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
    • F16F2230/00—Purpose; Design features
    • F16F2230/30—Sealing arrangements

Definitions

  • the invention relates to a torsional vibration damper, in particular for a drive train of a motor vehicle, the torsional vibration damper having an input part and an output part with a common axis of rotation about which the input part and the output part can be rotated together and rotated to a limited extent relative to one another, and one between the input part and the output part effective spring-damper device, the output part having an output mass part with at least one assembly opening and a sealing element for sealing the at least one assembly opening.
  • Document DE 102016223426 A1 discloses a torsional vibration damper, in particular a dual-mass flywheel, for damping torsional vibrations between a drive shaft of a motor vehicle engine and a transmission input shaft of a motor vehicle transmission, with a primary mass for introducing a torque, an energy storage element via an energy storage element designed in particular as an arc spring secondary mass that can be rotated to a limited extent relative to the primary mass for dissipating the torque, the secondary mass having at least one assembly opening for the axial passage of a fastener, in particular a fastening screw, for fastening the primary mass to the drive shaft of the motor vehicle engine, and a cover plate covering the assembly opening, where at the Cover plate is releasably clamped outside of the mounting opening with the secondary mass.
  • the object of the invention is to structurally and/or functionally improve a torsional vibration damper mentioned at the outset.
  • the torsional vibration damper can be used for arrangement in a drive train of a motor vehicle.
  • the powertrain can be an internal combustion engine with a Have crankshaft, a friction clutch, a hydrodynamic converter, a transmission and / or an auxiliary drive.
  • the torsional vibration damper can be designed as a dual mass flywheel (DMF).
  • the torsional vibration damper can be used for arrangement on a crankshaft, a friction clutch, a hydrodynamic torque converter, a transmission and/or an auxiliary unit drive.
  • the torsional vibration damper can be used to reduce torsional vibrations.
  • Input part and outlet part relate in particular to a line flow direction originating from an internal combustion engine.
  • the statements “axial”, “radial” and “in the circumferential direction” refer to a direction in which the axis of rotation extends. “Axial” then corresponds to a direction in which the axis of rotation extends. “Radial” is then a direction perpendicular to the direction of extension of the axis of rotation and intersecting with the axis of rotation. "In the circumferential direction” then corresponds to a circular arc direction around the axis of rotation.
  • the input part can have an input flange part and a cover part.
  • the input flange part may have a bowl-like shape.
  • the input flange part can have receptacles for input connection means such as screws.
  • On the measures can be arranged on a recording hole circle.
  • the cover part can have a ring-like shape.
  • the inlet flange part and the cover part can be firmly connected to one another, in particular welded.
  • the input flange part and the cover part can delimit an accommodation space.
  • the inlet flange part and/or the cover part can/can have supporting sections projecting into the receiving space.
  • the exit portion may include an exit flange portion.
  • the output flange part can have an annular disk-like shape.
  • the outlet flange part can be arranged in the axial direction between the inlet flange part and the cover part.
  • the output flange part can have support sections projecting into the receiving space.
  • the output mass part can be arranged on the output side of the output flange part.
  • the starting mass part can have a bowl-like shape.
  • the at least one mounting opening of the starting mass part can be fitted with a receptacle of the input flange part for an input connection means.
  • the we least one assembly opening can be used to mount the torsional vibration damper, in particular the input part.
  • the at least one mounting opening can be used to attach, fasten, detach and/or remove input connection means on a receptacle of the input flange part.
  • the starting mass part can have a plurality of mounting openings.
  • the assembly openings can be arranged on an assembly opening pitch circle.
  • the starting mass part can have at least one ventilation opening.
  • the starting mass part can have several ventilation openings.
  • the ventilation openings can be arranged on a ventilation opening hole circle.
  • the output mass part may have a hub portion.
  • the output flange part and the output mass part can be firmly connected to one another.
  • the exit flange part and the exit mass part can be connected to each other by means of main connection means such as rivets.
  • the main connecting means can be arranged on a main connecting means hole circle.
  • the main connecting center pitch circle can be larger than the mounting pitch circle.
  • the spring-damper device can have at least one mechanical energy store.
  • the at least one mechanical energy store can be designed as a screw spring, compression spring and/or arc spring.
  • the at least one mechanical energy store can be arranged in the receiving space.
  • the at least one mechanical energy store can be supported on the one hand on the input part and on the other hand on the output part.
  • the at least one mechanical energy store can be supported on the one hand on a support section of the input flange part and/or the cover part and on the other hand on a support section of the output flange part.
  • the at least one mechanical energy store can store mechanical energy when the input part and the output part are rotated relative to one another counter to a force of the at least one mechanical energy store.
  • the at least one mechanical energy store can turn the input part and the output part back relative to one another using the stored mechanical energy.
  • the spring-damper device can have a friction device.
  • the friction device can have at least one friction ring.
  • the friction device can have a plate spring-like membrane.
  • the receiving space can have a lubricant filling, in particular a grease filling exhibit.
  • the accommodation space can be sealed.
  • the receiving space can be sealed off in order to prevent a lubricant filling from escaping and/or the ingress of undesired media such as particles, dirt and/or water.
  • the membrane can serve as a seal.
  • the input part and the output part can be rotatably mounted on one another.
  • the input part and the output part can be stored together using a storage device.
  • the bearing device can have at least one plain bearing and/or at least one roller bearing, such as a ball bearing.
  • the sealing element can serve to seal the at least one assembly opening in order to prevent a lubricant filling from leaking out and/or the ingress of unwanted media, such as particles, dirt and/or water. From the sealing element can serve to seal the at least one ventilation opening. The sealing element can serve to seal the at least one ventilation opening, in order to prevent a lubricant filling from escaping and/or the ingress of undesired media, such as particles, dirt and/or water.
  • the sealing element can have a disk-like, ring-like and/or cup-like shape.
  • the sealing element can have a single or multiple stepped and/or angled cross section.
  • the sealing element may have a radially outer edge or edge.
  • the sealing element may have a radially inner edge or inner edge.
  • the sealing element can have at least one sealing section.
  • the at least one sealing section can be arranged on the outer edge and/or on the inner edge.
  • the at least one sealing section can be effective axially and/or radially.
  • the sealing element can have at least one sealing surface.
  • the at least one sealing surface can be essentially axially effective.
  • the at least one sealing surface can serve to seal the at least one assembly opening and/or the at least one ventilation opening.
  • the at least one sealing surface can be arranged between the outer edge and the inner edge.
  • the sealing element can be made of sheet metal.
  • the sealing element can be produced at least in sections from a spring steel sheet.
  • the sealing element can be produced in a separation and forming process.
  • the sealing element can be produced in a stamping and bending process.
  • the sealing element can be heat treated at least in sections.
  • the sealing element can be made at least in sections from a plastic.
  • the sealing element can be applied in a sealing direction with the aid of the spring prestressing force.
  • the sealing direction can be a direction at least approximately perpendicular to the sealing surface.
  • the spring biasing force can act in the axial direction and/or in the radial direction.
  • the spring biasing force can be partially supported on the starting masses.
  • the spring prestressing force can be generated using the sealing element itself.
  • the sealing element can have a spring section that can be preloaded both in the axial direction and in the radial direction.
  • the sealing element can have a spring section that is prestressed in the sealing position both in the axial direction and in the radial direction.
  • the tongue section can be arranged on the outer edge and/or on the inner edge of the sealing element.
  • the sealing element can have a spring section arranged radially on the inside and/or a spring section arranged radially on the outside.
  • the sealing element can have a peripheral spring section.
  • the spring section can be circumferential in the radial direction and/or in the circumferential direction.
  • the spring section can be continuously circumferential.
  • the spring section can be discontinuous circumferentially.
  • An interrupted circumferential spring section can have spring section parts and spring section gaps arranged between them.
  • the spring section parts and the spring section gaps can have at least approximately the same width in the circumferential direction.
  • the Federab section parts on the one hand and the spring section gaps on the other hand can each have different widths in the circumferential direction.
  • the spring section parts can each have a greater width in the circumferential direction than the spring section gaps.
  • the spring section gaps can each have a greater width in the circumferential direction than the spring section parts.
  • the sealing element can be held using a separate spring element for applying and/or supporting a spring prestressing force.
  • the spring element can be structurally separate, in particular from the sealing element.
  • the spring element can be manufactured separately and/or assembled.
  • the spring element can be ring-shaped.
  • the spring element can have a round cross section.
  • the sealing member may have an edge portion with an L-shaped, I-shaped, or trough-shaped cross section.
  • the edge section can be arranged on the inner edge and/or on the outer edge.
  • the spring element can be arranged on the edge section.
  • the sealing element can have at least one dismounting section.
  • the least one disassembly portion may be disposed on the spring portion. If the spring section is interrupted with spring section parts and arranged spring section gaps in between, the at least one dismantling section can be arranged on a spring section part.
  • the at least one de-assembly section can extend in the axial and/or radial direction beyond the spring section.
  • the at least one dismantling section can be directed radially inwards.
  • the at least one dismantling section can have a tongue and/or strap-like shape.
  • the at least one dismantling section can have a recess, in particular a hole and/or a bore.
  • the initial mass part may have a separate support portion for supporting a holding force for the sealing member.
  • the support section can be manufactured separately.
  • the support section can be functionally separate.
  • the Abstützab section can have a groove-like shape.
  • the support section can be produced as a turned contour.
  • the support section can be circumferential.
  • the support section can be circumferential in the radial direction and/or in the circumferential direction.
  • the Abstützab section can be continuously circumferential.
  • the support section can have an axially effective partial section and/or a radially effective partial section.
  • the support section can be undercut.
  • the support section can be undercut in the axial and/or radial direction.
  • a seal can be arranged between the starting mass part and the sealing element.
  • the seal can be implemented using at least one sealing element and/or a sealing compound.
  • the invention results in a secondary-side DMF seal, among other things.
  • a sealing element can be attached to the secondary flywheel.
  • the sealing element can be axially retained/prestressed so that, starting from a loose state in an installed state, an axial/radial force occurs and a “sealing” function is thus fulfilled.
  • the sealing element can be held firmly in an end position (installed state) using the axial/radial force.
  • the sealing element can have a spring function.
  • the sealing element can be made of plastic or sheet metal.
  • Springy tongues can be attached to an outer or inner area, which serve to apply axial/radial force and to dismantle the sealing element (dismantling tongues).
  • geometries such as a bore, can serve as a disassembly flifs bore.
  • a sealant can be applied between the secondary flywheel and the sealing element (inside and/or outside).
  • Operational reliability and/or a service life are increased with the invention. Maintenance intervals are extended. A sealing effect is increased. A hold of the sealing element is improved.
  • FIG. 1 shows a torsional vibration damper with a sealing element for sealing assembly openings and ventilation openings, in which the sealing element has a circumferential spring section with an L-shaped cross section on its outer edge and a sealing section on its inner edge, in a sectional view and in a detailed view,
  • FIG. 2 shows a torsional vibration damper without ventilation openings with a sealing element for sealing assembly openings, in which the sealing element has a peripheral spring section with a trough-shaped cross section on its outer edge, in a sectional view and in a detailed view
  • 3 shows a torsional vibration damper with a sealing element for sealing assembly openings, in which the sealing element has a trough-shaped cross section with a separate spring element on its outer edge, in a sectional view and in a detailed view
  • FIG. 4 shows a torsional vibration damper with a sealing element for sealing assembly openings, in which the sealing element has an L-shaped cross section with a separate spring element on its outer edge, in a sectional view and in a detailed view,
  • FIG. 5 shows a torsional vibration damper with a sealing element for sealing assembly openings, in which the sealing element has an L-shaped cross section with a separate spring element on its outer edge and a sealing section on its inner edge, in a sectional view and in a detailed view,
  • FIG. 6 shows a torsional vibration damper with a sealing element for sealing assembly openings, in which the sealing element has a circumferential spring section with a trough-shaped cross section on its outer edge and a sealing section on its inner edge, in a sectional view and in a detailed view,
  • FIG. 7 is a sectional view of a sealing element which has a circumferential spring section on its outer edge with a trough-shaped cross section and dismantling sections and a sealing section on its inner edge,
  • FIG. 8 shows a torsional vibration damper with a sealing element for sealing assembly openings, in which the sealing element has an interrupted spring section with a trough-shaped cross section on its outer edge and a sealing section on its inner edge, in a sectional view and in a detailed view, and
  • FIG. 9 shows a torsional vibration damper with a sealing element for sealing assembly openings, in which the sealing element at its outer edge has a sealing portion and at its inner edge an interrupted spring portion with an L-shaped cross section, in sectional view and in detailed view.
  • Fig. 1 shows a designed as a dual-mass flywheel torsional vibration damper 100 with a sealing element 102 for sealing assembly openings, such as 104, and ventilation openings.
  • Torsional vibration damper 100 for arrangement in a drive train of a motor vehicle in order to reduce torsional vibrations.
  • the torsional vibration damper 100 has an input part 106, an output part 108 and an axis of rotation.
  • the input part 106 and the output part 108 can be rotated together about the axis of rotation and can be rotated relative to one another to a limited extent.
  • the input part 106 and the output part 108 are mounted together with the aid of a ball bearing 109 so that they can rotate.
  • a spring-damper device is effective between the input part 106 and the output part 108 .
  • the input part 106 has a cup-shaped input flange part 110 with men recordings, such as 112 for screws and an annular cover part 114 .
  • the input flange part 110 and the cover part 114 are welded together and delimit a receiving space 116.
  • the output member 108 includes an annular disc-shaped output flange portion 118 and a cup-shaped output mass member 120 with mounting apertures such as 104 for egg nen access to the receptacles 112 and a hub portion 124.
  • the output flange part 118 and the output mass part 120 are connected to each other by means of rivets such as 126 fixed.
  • the spring-damper device has springs arranged in the receiving space 116, such as 128, which are supported on the one hand on the input part 106 and on the other hand on the output part 108, and a friction device.
  • the receiving space 116 has a grease filling and is sealed.
  • the sealing member 102 has an annular disk-like shape with a multiple ge stepped and angled cross-section, an outer edge 130, an inner edge 132 and Sealing surfaces 134, 136 on. A sealant can be arranged on the sealing surfaces 134, 136.
  • the sealing element 102 has a circumferential spring section 138 with an L-shaped cross section on its outer edge 130 and an I-shaped cross section with a sealing section 140 on its inner edge 132 .
  • the starting mass part 120 has a separate groove-shaped support section 142 radially outside of the ventilation openings and the rivets 126 for supporting a holding force for the sealing element 102 .
  • the support portion 142 is the Federab section 138 adapted undercut and has an axially and radially effective portion on. In the sealing position shown, the sealing element 102 is latched with its spring section 138 on the support section 142 of the initial mass part 120 and is thus held at the assembly openings 104 and at the ventilation openings under the action of a spring prestressing force both in the axial direction and in the radial direction.
  • Fig. 2 shows a torsional vibration damper 200 without ventilation openings with a sealing element 202 for sealing assembly openings, such as 204, in which the sealing element 202 has a peripheral spring section 208 with a trough-shaped cross section on its outer edge 206, in a sectional view and in a detailed view.
  • the sealing element 202 is pot-shaped with a closed bottom without an inner edge and compared to the sealing element 202 according to FIG. 1 with a significantly reduced outer diameter.
  • the starting mass part 210 has a separate groove-shaped support section 214 radially inside the rivets 212 for supporting a holding force for the sealing element 202 .
  • the support section 214 is the Federab section 208 undercut adapted. In the sealing position shown, the sealing element 202 is locked with its spring section 208 on the support section 214 of the output mass part 210 and is thus held in the mounting openings 204 and on the ball bearing 216 under the action of a spring preload force both in the axial direction and in the radial direction.
  • additional reference is made in particular to Fig.
  • FIG. 3 shows a torsional vibration damper 300 with a sealing element 302 for sealing assembly openings, such as 304, in which the sealing element 302 has a trough-shaped cross section with a separate spring element 308 on its outer edge 306, in a sectional view and in a detailed view.
  • the spring biasing force for holding the sealing element 302 is applied and/or supported with the help of the spring element 308 .
  • the spring element 308 is ring-shaped, has a round cross section and is arranged in the trough-shaped cross section of the outer edge 306 .
  • FIGS. 1 and 2 reference is made in particular to FIGS. 1 and 2 and the associated description.
  • FIG. 4 shows a torsional vibration damper 400 with a sealing element 402 for sealing assembly openings, such as 404, in which the sealing element 402 has an L-shaped cross section with a separate spring element 408 on its outer edge 406, in a sectional view and in a detailed view.
  • the spring element 408 is on the L-shaped cross section of the outer edge 406 is arranged.
  • FIGS. 1 , 2 and 3 reference is made in particular to FIGS. 1 , 2 and 3 and the associated description.
  • Fig. 5 shows a torsional vibration damper 500 with a sealing element 502 for sealing assembly openings, such as 504, in which the sealing element 502 has an L-shaped cross section on its outer edge 506 with a separate spring element 508 and on its inner edge 510 an I-shaped cross section having a sealing section 512, in a sectional view and in a detailed view.
  • the sealing element 502 has an L-shaped cross section on its outer edge 506 with a separate spring element 508 and on its inner edge 510 an I-shaped cross section having a sealing section 512, in a sectional view and in a detailed view.
  • Fig. 6 shows a torsional vibration damper 600 with a sealing element 602 for sealing assembly openings, such as 604, in which the sealing element 602 has a peripheral spring section 608 with a trough-shaped cross section on its outer edge 606 and an I-shaped cross section with a cross section on its inner edge 610 Has sealing portion 612, in sectional view and in detailed view.
  • the sealing element 602 has a peripheral spring section 608 with a trough-shaped cross section on its outer edge 606 and an I-shaped cross section with a cross section on its inner edge 610
  • Has sealing portion 612 in sectional view and in detailed view.
  • Fig. 7 shows a sealing element 700, which cuts at its outer edge 702 a circumferential spring section 704 with a trough-shaped cross section and removal section, as 706, and at its inner edge 708 has an I-shaped cross section with a sealing section 710, in a sectional view.
  • the dismantling sections 706 each have a tongue and/or tab-like shape, each extend in the axial direction beyond the spring section 704 and are directed radially inwards.
  • FIGS. 1, 2, 3, 4, 5 and 6 reference is made in particular to FIGS. 1, 2, 3, 4, 5 and 6 and the associated description.
  • Fig. 8 shows a torsional vibration damper 800 with a sealing element 802 for sealing assembly openings, such as 804, in which the sealing element 802 has an interrupted spring section 808 on its outer edge 806 with a trough-shaped cross section and on its inner edge 810 an I-shaped cross section with a NEM sealing portion 812 has, in sectional view and in detailed view.
  • the interrupted spring section 808 has spring section parts such as 814 and spring section gaps such as 816 arranged between them.
  • the tongue section parts 814 on the one hand and the tongue section gaps 816 on the other hand each have different widths in the circumferential direction.
  • At least one of the spring section parts 814 has a recess, such as 818, and thus serves as a dismantling section 820.
  • FIGS. 1, 2, 3, 4, 5 and 6 are identical to FIGS. 1, 2, 3, 4, 5 and 6 and the associated description.
  • Fig. 9 shows a torsional vibration damper 900 with a sealing element 902 for sealing assembly openings, such as 904, in which the sealing element 902 has an I-shaped cross section with a sealing section 908 on its outer edge 906 and an interrupted spring section 912 with an L on its inner edge 910 -shaped cross-section, in sectional view and in detailed view.
  • the discontinuous spring section 912 has spring section parts such as 914 and spring section gaps such as 916 arranged therebetween.
  • the tongue section parts 914 on the one hand and the tongue section gaps 916 on the other hand each have different widths in the circumferential direction. At least one of the spring section parts 914 can have a recess and thus serve as a disassembly section.
  • FIGS. 1, 2, 3, 4, 5 and 6 and the associated description.
  • isolated features can also be selected from the combinations of features disclosed here and used in combination with other features to delimit the subject matter of the claim, breaking up any structural and/or functional connection that may exist between the features.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

L'invention se rapporte à un amortisseur de vibrations de torsion (100), plus particulièrement à une chaîne cinématique d'un véhicule à moteur, l'amortisseur de vibrations de torsion (100) comprenant : - une partie d'entrée (106) et une partie de sortie (108) ayant un axe de rotation commun, autour duquel la partie d'entrée (106) et la partie de sortie (108) peuvent tourner ensemble et peuvent tourner l'une par rapport à l'autre dans une étendue limitée ; et - un dispositif amortisseur à ressort, qui agit entre la partie d'entrée (106) et la partie de sortie (108). La partie de sortie (108) comporte une partie masse de sortie (120) présentant au moins une ouverture de montage (104) et comporte un élément d'étanchéité (102) pour assurer l'étanchéité de l'ouverture ou des ouvertures de montage (104), l'élément d'étanchéité (102) étant retenu à la fois dans la direction axiale et dans la direction radiale sous l'action d'une force de précharge de ressort lorsque l'élément d'étanchéité est dans une position d'étanchéité au niveau de l'ouverture ou des ouvertures de montage (104).
PCT/DE2021/100532 2020-07-22 2021-06-23 Amortisseur de vibrations de torsion Ceased WO2022017557A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202180039093.7A CN115768996A (zh) 2020-07-22 2021-06-23 扭振阻尼器
EP21739552.4A EP4185788A1 (fr) 2020-07-22 2021-06-23 Amortisseur de vibrations de torsion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020119271.1 2020-07-22
DE102020119271 2020-07-22

Publications (1)

Publication Number Publication Date
WO2022017557A1 true WO2022017557A1 (fr) 2022-01-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2021/100532 Ceased WO2022017557A1 (fr) 2020-07-22 2021-06-23 Amortisseur de vibrations de torsion

Country Status (3)

Country Link
EP (1) EP4185788A1 (fr)
CN (1) CN115768996A (fr)
WO (1) WO2022017557A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014209487A1 (de) * 2013-06-20 2014-12-24 Schaeffler Technologies Gmbh & Co. Kg Drehschwingungsdämpfer
DE102016223426A1 (de) 2015-11-30 2017-06-01 Schaeffler Technologies AG & Co. KG Drehschwingungsdämpfer
EP3167203B1 (fr) * 2014-07-08 2018-08-15 Schaeffler Technologies AG & Co. KG Volant bimasse
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