EP3867548A1 - Torsional vibration damper - Google Patents
Torsional vibration damperInfo
- Publication number
- EP3867548A1 EP3867548A1 EP19794414.3A EP19794414A EP3867548A1 EP 3867548 A1 EP3867548 A1 EP 3867548A1 EP 19794414 A EP19794414 A EP 19794414A EP 3867548 A1 EP3867548 A1 EP 3867548A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vibration damper
- torsional vibration
- flange
- output
- spring
- 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.)
- Pending
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
- F16F15/129—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 characterised by friction-damping means
- F16F15/1292—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 characterised by friction-damping means characterised by arrangements for axially clamping or positioning or otherwise influencing the frictional plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
- F16D7/02—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
- F16D7/024—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces
- F16D7/025—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type with axially applied torque limiting friction surfaces with flat clutching surfaces, e.g. discs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/12—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/14—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions combined with a friction coupling for damping vibration or absorbing shock
-
- 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
- F16F15/12353—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations
-
- 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
- F16F15/129—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 characterised by friction-damping means
- F16F15/1297—Overload protection, i.e. means for limiting torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/06—Lubrication details not provided for in group F16D13/74
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/22—Vibration damping
-
- 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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/04—Friction
-
- 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
- F16F2232/00—Nature of movement
- F16F2232/02—Rotary
-
- 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
- F16F2236/00—Mode of stressing of basic spring or damper elements or devices incorporating such elements
- F16F2236/08—Torsion
Definitions
- the invention relates to a torsional vibration damper with an input part arranged around an axis of rotation and an output part arranged relative to it counter to the action of a spring device about the axis of rotation, the spring device being acted upon in the circumferential direction on the input and output sides and between the spring device and an output part of the
- the output part is a torque limiting device containing a flange part which acts on the spring device on the output side and is arranged on both sides of the latter and by means of axial clamping produces a frictional connection with the side parts.
- a generic torsional vibration damper is known from the document DE 10 2014 218 966 A1.
- a torque limiting device is provided between a spring device and an output hub.
- the torque limiting device consists of a device that acts on the output side of the spring device
- Flange part and two side parts clamping the flange part is formed to form a frictional engagement which defines the transmissible torque.
- the flange part is designed radially on the inside as a plate spring, the force edge of which is axially preloaded radially on the outside in relation to a first side part and radially on the inside in relation to the second side part.
- On the friction surfaces between the side parts and the flange part are radially superposed friction linings.
- the object of the invention is the development of a generic torsional vibration damper.
- the object of the invention the maximum over the Torque limiting device to set reproducible torque.
- the proposed torsional vibration damper is used to isolate torsional vibrations, in particular for a drive train of a motor vehicle with an internal combustion engine that is subject to torsional vibrations.
- the torsional vibration damper contains an input part which can be rotated about an axis of rotation and an output part which is arranged so as to be rotatable about the axis of rotation relative to the action of a spring device.
- the torsional vibration damper can be designed as a dual-mass flywheel, the input part containing a primary flywheel mass and the output part containing a secondary flywheel mass.
- the secondary flywheel mass can at least partially be provided in a downstream drive train device, for example a double clutch, a hydrodynamic torque converter or the like, to which the output part is connected in a rotationally locking manner.
- the input part can be received by means of fastening openings, optionally with the interposition of a reinforcement ring on a crankshaft.
- the input part can, for example, form an annular chamber radially on the outside by means of two disk parts, in which the spring device is accommodated.
- the spring device is formed, for example, from a plurality of arc springs or arc spring assemblies distributed over the circumference with nested arc springs.
- the spring device is effectively arranged in the circumferential direction between the input part and the output part.
- the input part and the output part are mutually connected a bearing, for example a plain or roller bearing.
- the input part is accommodated centered on the crankshaft and the output part is centered on a shaft such as, for example, the transmission input shaft of a transmission or a stub shaft of a drive train device connected upstream of the transmission, a corresponding axial offset being provided within the torsional vibration damper, for example on loading devices of the spring devices.
- the input part and the output part have said actuating devices which engage between the adjacent end faces of the bow springs.
- the input part has, for example, projections formed in the disk parts of the annular chamber.
- the output part has a flange part on whose radially widened arms engage between the end faces of the arc springs which are adjacent in the circumferential direction.
- a torque limiting device is provided between the spring device and the driven part of the output part.
- An output part is to be understood as an output hub, for example, which is connected to an externally toothed shaft or a stub shaft by means of an internal toothing.
- the driven part can be designed as a flywheel mass disk, which receives a clutch pressure plate to form a friction clutch.
- the torque limiting device contains the flange part which acts on the spring device on the output side and side parts which are arranged on both sides thereof and produce a frictional connection by means of an axial clamping.
- the torque limiting device is preferably arranged radially inside the spring device.
- the torsional vibration damping of the spring device for example in connection with a primary flywheel mass of the input part and a secondary At least one centrifugal force pendulum can be integrated in the torsional vibration damper to support the inertia of the output part, which can be provided axially next to the spring device, radially inside the spring device axially next to the torque limiting device or elsewhere.
- the torque limiting device for setting a precisely adjustable maximum torque that can be transmitted via the torque limiting device is designed such that the flange part between a first and a second side part by means of an axially supported on an abutment of the first side part and the second side part is clamped against the flange part axially prestressing disc spring. This means that one side part is axially preloaded with respect to the other side part and the flange part itself is flat without a force edge.
- the friction surfaces between the side parts on the one hand and the flange part form axially opposite and with an almost total surface area due to the overlap of the flange part and side parts, so that the friction surface increases and can be reproduced by means of the external preload on a side part by means of an external disc spring can be trained. Due to the increased friction surface, the maximum torque that can be transmitted can also be increased or, with a lower preload, a lower torque can be transmitted with improved accuracy.
- the abutment serves to axially support the plate spring and has axially spaced abutment surfaces with respect to the first side part in such a way that the flange part, the second side part and the plate spring with their axial spring travel can be accommodated between the first side part. It has proven advantageous if the abutment enables the disc spring and the second side part to be rotationally locked to the first side part, so that a relative rotation of the flange part relative to the side parts is provided only on the friction surfaces of the friction linings. Furthermore, it has proven to be advantageous if the second side part and the partial spring are centered on the abutment.
- first side part and an output part of the output part can be connected to one another in one piece.
- tabs which form the abutment, can be issued from the first side part distributed over the circumference.
- spacer bolts can be arranged over the circumference on a corresponding pitch circle on the first side part.
- the driven part of the output part is connected to the first side part by means of riveting and the abutment is formed by means of rivets of the riveting distributed over the circumference.
- the driven part can be designed as a driven hub, a hub flange of the driven hub being connected to the first side part by means of the riveting.
- the rivets can be designed as stepped bolts, which connect the first side part to the hub flange and have axially spaced setting heads that form the abutment.
- a second rivet can be provided with rivets distributed radially outside the pitch circle of the first rivet on a larger pitch circle over the circumference.
- the driven part can be designed as a secondary flywheel forming a secondary flywheel mass, which is connected to the first side part, for example, by means of spacer bolts forming the riveting.
- the second side part and the plate spring are accommodated at an axial distance between the secondary flywheel and the first side part, the cup spring and the side part being axially supported on the secondary flywheel and centered on the spacer bolts in a rotationally locking manner.
- the hub flange of the driven hub can be arranged axially between the side parts and center the flange part on its outer circumference.
- the friction linings can be greased to improve the setting of the maximum torque that can be transmitted via the torque limiting device.
- the spring device accommodated in the annular chamber can be greased. A sufficient greasing of the spring device and the torque limiting device arranged radially inside the spring device can provide greasing of the friction linings of the torque limiting device over a lifetime.
- the figure shows the upper part of the torsional vibration damper 1 arranged about the axis of rotation d in section with the input part 2 and the output part 3 with the torque limiting device 5, which can be rotated relative to the action of the spring device 4 relative to the axis of rotation d.
- the input part 2 is received on the crankshaft 7 by means of the screws 6.
- the drive plate 8 with the fastening openings for the screws 6 is designed to be axially flexible for damping axial, screen and / or wobble vibrations of the crankshaft 7 and is connected radially on the outside by means of screws (not shown) to the ground ring 9 and the disk part 10 .
- the disk part 10 and the disk part 11 are tightly connected to one another as welded here.
- the disk part 11 receives the mass ring 9 on its radially outer axial shoulder.
- the disk parts 10, 11 form the annular chamber 12 in which the spring device 4 is accommodated.
- the spring device 4 is formed from arc spring assemblies 13 distributed over the circumference with nested arc springs 14, 15.
- the end faces of the bow springs 14, 15 which are adjacent in the circumferential direction are each acted upon on the input side by loading devices, not shown, for example in the washers provided in the disk parts 10, 11.
- the output part 3 contains the torque limiting device 5 arranged radially inside the spring device 4 and the driven part 16, which is designed as the driven hub 17 with the hub flange 18 and the hub 19 with the internal toothing 20.
- the hub 19 is rotationally connected to the external toothing 22 of the shaft 21 or a stub shaft.
- the axis of rotation d corresponds to the axis of rotation of the shaft 21.
- a compensation takes place within the input part 2 and the output part 3, for example on the spring device 4.
- the torque limiting device 5 contains the flange part 23, the two side parts 24, 25, the plate spring 26 and the rivets 27 distributed over the circumference.
- the flange part 23 serves to act upon the arc springs 14, 15 on the output side and for this purpose has arms 28 which are enlarged radially , which engage between the adjacent circumferential end faces of the arc springs 14, 15 and act on them in both circumferential directions.
- the first side part 24 is connected to the hub flange 18 of the driven hub 17 by means of the rivet 27 of the rivet 29.
- the rivets 27 are as spacer bolts 30 formed, which have the axial extension area 31 and the adjoining the setting head 32.
- the second side part 25 and the plate spring 26 are received and centered on the extension areas 31 by means of inner profiles 33, 34.
- the plate spring 26 is supported axially on the setting heads 32 and is axially prestressed against the second side part 25, which forms a frictional clamping connection with the flange part 23 with the first side part 24.
- the setting heads 32 of the rivets 27 form the abutment 42 connected to the first side part 24 for the plate spring 26.
- friction linings 35 are arranged on both sides, which are arranged axially opposite one another and essentially occupy the clamping surface between the side parts 24, 25 and the flange part 23.
- the friction linings 35 can be attached to the side parts 24, 25.
- the friction linings 35 can be glued to the corresponding components and can be produced, for example, as paper linings, from material mixtures with friction material or as friction lamellae. Due to the flat friction surfaces between the friction linings and counter friction surfaces made of steel, a reproducible and possibly high friction torque can be set depending on the preload of the plate spring 26.
- the two friction rings 36, 37 are provided for setting a basic friction between the input part 2 and the output part 3, for sealing the annular chamber 12, and for axially positioning the output part 3 with respect to the input part 2 Pins 38 are rotatably received in the disk parts 10, 11.
- the axial prestressing and positioning of the output part 3 relative to the input part 2 is carried out by the plate spring 39, which is supported on the second side part 25 and centered on the plate spring 26.
- the plate spring 39 is prestressed against the friction ring 37, so that the first side part 24 lies against the friction ring 36.
- the axial preload of the plate spring 39 is essentially negligible in relation to the plate spring 26 to form the effect of the torque limiting device 5.
- the riveting 40 can be provided between the first side part 24 and the hub flange 18 with a larger diameter by means of the rivets 41 arranged over the circumference.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018125570 | 2018-10-16 | ||
PCT/DE2019/100897 WO2020078513A1 (en) | 2018-10-16 | 2019-10-16 | Torsional vibration damper |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3867548A1 true EP3867548A1 (en) | 2021-08-25 |
Family
ID=68344577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19794414.3A Pending EP3867548A1 (en) | 2018-10-16 | 2019-10-16 | Torsional vibration damper |
Country Status (5)
Country | Link |
---|---|
US (1) | US20210355999A1 (en) |
EP (1) | EP3867548A1 (en) |
CN (1) | CN112689718A (en) |
DE (1) | DE102019127907A1 (en) |
WO (1) | WO2020078513A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022258101A1 (en) * | 2021-06-11 | 2022-12-15 | Schaeffler Technologies AG & Co. KG | Torque transmission device and drive assembly |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6699131B2 (en) * | 1986-07-05 | 2004-03-02 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Torsional vibration damping apparatus |
US5778738A (en) * | 1995-08-31 | 1998-07-14 | Kabushiki Kaisha Yutaka Giken | Two-mass type of flywheel device |
FR2816679B1 (en) * | 2000-11-10 | 2003-01-03 | Valeo | TORQUE TRANSMISSION DEVICE, PARTICULARLY FOR A MOTOR VEHICLE |
JP3791674B2 (en) * | 2001-06-26 | 2006-06-28 | アイシン・エィ・ダブリュ株式会社 | Damper device with torque limiter |
JP4999898B2 (en) * | 2009-08-27 | 2012-08-15 | 株式会社エクセディ | Torque limiter device |
JP5338616B2 (en) * | 2009-10-28 | 2013-11-13 | アイシン精機株式会社 | Damper device |
JP6024336B2 (en) * | 2012-09-24 | 2016-11-16 | アイシン精機株式会社 | Torque fluctuation absorber |
DE102014214882A1 (en) * | 2013-08-06 | 2015-02-12 | Schaeffler Technologies Gmbh & Co. Kg | Damper assembly with a spring damper for transmitting a torque to a slip clutch |
EP3094884A2 (en) * | 2014-01-17 | 2016-11-23 | Schaeffler Technologies AG & Co. KG | Torque transmission device |
DE102014218966A1 (en) | 2014-09-22 | 2016-03-24 | Schaeffler Technologies AG & Co. KG | torsional vibration dampers |
-
2019
- 2019-10-16 WO PCT/DE2019/100897 patent/WO2020078513A1/en unknown
- 2019-10-16 US US17/284,662 patent/US20210355999A1/en not_active Abandoned
- 2019-10-16 DE DE102019127907.0A patent/DE102019127907A1/en not_active Withdrawn
- 2019-10-16 CN CN201980059529.1A patent/CN112689718A/en active Pending
- 2019-10-16 EP EP19794414.3A patent/EP3867548A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CN112689718A (en) | 2021-04-20 |
DE102019127907A1 (en) | 2020-04-16 |
WO2020078513A1 (en) | 2020-04-23 |
US20210355999A1 (en) | 2021-11-18 |
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