WO2006094473A1 - Vorrichtung zur bestätigung einer kupplung - Google Patents
Vorrichtung zur bestätigung einer kupplung Download PDFInfo
- Publication number
- WO2006094473A1 WO2006094473A1 PCT/DE2006/000279 DE2006000279W WO2006094473A1 WO 2006094473 A1 WO2006094473 A1 WO 2006094473A1 DE 2006000279 W DE2006000279 W DE 2006000279W WO 2006094473 A1 WO2006094473 A1 WO 2006094473A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- actuating lever
- spring
- bearing
- running unit
- force
- Prior art date
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
-
- 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
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
- F16D2023/126—Actuation by rocker lever; Rocker levers therefor
-
- 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
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
- F16D23/14—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings
- F16D2023/141—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings characterised by using a fork; Details of forks
-
- 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
- F16D2300/14—Clutches which are normally open, i.e. not engaged in released state
Definitions
- the present invention relates to a device for actuating in particular a clutch of a vehicle, with at least one, a variable actuating force for opening and / or closing the clutch performing actuating lever which is acted upon by a spring.
- clutches have been operated for example by means of a lever which has a fixed lever length and could be driven for example by means of an electric motor drive to open and / or close the clutch. If now over the travel of the clutch actuation a variable actuation force had to be applied, so for this purpose, the electric motor to provide a correspondingly high torque available, supplied with corresponding current values.
- clutch actuation for example, in the form of a driven by an electric motor Gottausgurers, in which case the electric motor must be energized with high current values in order to provide correspondingly high output torques available.
- lever system for actuating clutches described in DE 10 2004 009 832 A1 has lever arms with variable lever lengths, for which purpose the lever pivot fulcrum could be displaced along the actuating lever and thus at different force application point in the lever depending on the displacement of the fulcrum different effective lever lengths result.
- lever system already has many advantages over known clutch actuators, it still leaves room for significant improvements.
- the lever system known from this publication is applied to the force application point of the actuating force in the lever with a predeterminable force.
- a corresponding de complementary to the spring force introduced into the actuating lever reaction force.
- the actuating lever- which, for example, also includes a plurality of actuating levers extending radially radially around the axial bearing-is supported on a fulcrum, a support force corresponding to twice the spring force prevails at this support point at a lever length ratio of 1: 1 to form a force equilibrium.
- an electric motor may be provided which has a drive screw provided with a movement thread, on which a repeater runs, on which a housing is arranged, which in turn is connected to a bow-shaped yoke for introducing force into a roller bearing roller pair.
- the present invention is based on the object, the input device described for actuating in particular a clutch of a vehicle in such a way that the number of components required for the function is reduced and the device for clutch operation is thus also smaller and less expensive.
- the invention now provides a device for actuating in particular a clutch of a vehicle, with at least one, a variable actuating force for opening and / or closing the clutch performing actuating lever acted upon by a spring. bar, wherein according to the invention, the point of initiation of the spring force in the actuating lever along the actuating lever is displaced and the actuating lever is supported at a substantially stationary fulcrum.
- the invention provides an operating lever on the support running unit, which is acted upon by the spring and initiates a variable spring force in the operating lever.
- the variable spring force can now be achieved for example by a corresponding design of the spring with, for example, a spring constant linear or non-linearly variable spring constant.
- said running unit by means of a spindle drive relative to the spring and the actuating lever is displaceable such that the displacement leads to an actuating lever acting on the variable spring force.
- the variable spring force can also be achieved by the displacement of the running unit relative to the spring, that is, the spring generates, for example, a relative to the support point of the running unit on the spring variable spring force.
- the running unit on the operating lever can be displaced into the area of the fulcrum and the spring is designed such that - A - that the spring force decreases on the running unit along the displacement path of the running unit to the fulcrum point.
- the spring is designed as a leaf spring and has the fulcrum on which the actuating lever is supported. In order for a functional integration is achieved and reduced the number of components necessary for the formation of the device according to the invention.
- the leaf spring is also designed as a support for a, a drive spindle of the running unit driving motor.
- the invention according to the invention also provided principle of functional integration is taken into account, since the provided for driving the drive spindle of the running unit motor can initiate its reaction torque in the leaf spring. It must be provided for this purpose only that this support allows a tilting movement of the engine, since the motor performs a tilting movement due to the adjustment of the spring force gripping point.
- the running unit has a bearing cooperating with a movement thread of the spindle drive bearing in such a way that a rotational movement of the spindle drive in a translational movement of the barrel unit can be implemented. It means in other words that the running unit by means of its intended according to the invention La gers can implement the rotational movement of the spindle drive in a translational movement of the barrel unit.
- the running unit has a particular roller bearing shaft, which rolls on a particular hardened track of the actuating lever and over which the spring force in the actuating lever can be introduced.
- the leaf spring is formed in an axial longitudinal section is substantially U-shaped and the running unit and the drive spindle in the assembled state of the device between two plate-shaped legs of the leaf spring are arranged and at least one leg on on the Shaft mounted rollers exerts a spring force on the shaft.
- a base connecting the two legs of the leaf spring on the outside has a recess into which engages a arranged on the engine and surface and form complementary trained projection in such a way that the motor against rotation of the leaf spring is determinable.
- the reaction torque of the motor can be introduced into the leaf spring as a torque support via this recess provided on the base and the projection formed on the motor.
- this combination of the recess and the projection is formed so that the motor is indeed fixed in rotation, but can perform a tilting movement relative to the longitudinal center axis of the leaf spring.
- the actuating lever is at least partially curved in such a way that at a displacement of the point of introduction of the spring force along the actuating lever, an end portion of the actuating lever performs an arcuate movement and exerts an actuating force to open and / or close the clutch ,
- this design of the actuating lever can be achieved, inter alia, that at a depressed clutch, d. H.
- a clutch that is pressed over the operating lever to close the clutch a self-opening of the clutch can be achieved when the energization of the drive motor is interrupted and a clutch provided for example on the clutch causes the clutch to open.
- the bearing is arranged in the running unit such that an introduced via the drive spindle in the bearing, acting in the spindle longitudinal reaction force biases the bearing eccentrically against the drive spindle.
- the drive motor sets the drive spindle in a rotational movement
- this rotational movement is converted by means of the bearing of the running unit in a translational movement of the running unit.
- the running unit is supported by the roller bearing shaft on the actuating lever and on the arranged in the running unit bearing acts in this way acting in a spindle longitudinal reaction force.
- the bearing of the running unit is now arranged so that this reaction force biases the bearing eccentrically against the drive spindle, so that the inner ring of the bearing against the thread flanks of the movement thread of the is driven spindle and thus a secure concern of the bearing inner ring on the flanks of the movement thread of the drive spindle is achieved.
- the inner ring of the bearing of the running unit is located on the thread flanks of the movement thread of the drive spindle. If there are considerable deviations in the contact area in relation to the relative speeds, on the one hand wear occurs and on the other hand the efficiency drops due to the friction losses. It is therefore provided to avoid this circumstance according to the invention, that the geometry of the bearing inner ring or the thread flanks is modified so that the peripheral speeds at the nominal contact diameters are largely the same and now prevails the Bohrreibungsanteil within the contact ellipses.
- the movement thread can have spherical thread flanks such that the contact area between the inner ring of the bearing and the movement thread is largely on the inner diameter of the bearing inner ring. This ensures that the lateral contact on the bearing inner ring is very close to the bearing inner diameter.
- a movement thread can also be provided on the drive spindle with two threads running on a stepped thread flank, so that the precision of the translational movement of the barrel unit, the pitch of the thread can be reduced until they run into each other in extreme cases and a single thread with a stepped edge.
- the bearing also have a bearing inner ring whose radially inner lateral surface is stepped, wherein in a similar training a standard bearing with a constant bearing inner diameter can be used, which arranged on a on the movement spindle Ring body is arranged, whose radially inner lateral surface is stepped.
- Fig. 1 is a schematic representation of the known device for actuating a clutch
- Fig. 2 is a schematic representation of the device for actuating a clutch according to the present invention
- Fig. 3 is a schematic representation of a released spring in the form of a leaf spring according to the present invention.
- Fig. 4 is a side view of a schematic representation of the apparatus of the present invention in an assembled view
- FIG. 5 shows a schematic illustration of the device according to FIG. 4 in a functional representation for actuating a clutch
- Fig. 6 is an exploded view of an embodiment of a device according to the present invention.
- FIG. 7 shows a detailed view of a detail A according to FIG. 4.
- FIG. 8 shows a view of a drive motor with drive spindle and running unit arranged thereon
- FIG. 9 is a side view and an enlarged view of a detail of the side view of a standing with a drive spindle in operative bearing for explaining the movement conditions. 10 shows a view similar to FIG. 9 with a motion thread with crowned thread flanks;
- FIG. 11 is a view similar to Figure 9 on a drive spindle with two threads.
- FIG. 12 shows a view similar to FIG. 9 of a drive spindle with a motion thread with a stepped thread flank;
- FIG. 13 shows a view similar to FIG. 9 of a drive spindle with a bearing with a stepped bearing inner ring;
- Fig. 14 is a view similar to Fig. 9 with a drive spindle with a bearing disposed thereon and an intermediate ring.
- Fig. 1 of the drawing shows a schematic representation of a known device for actuating a clutch.
- a spring 2 On a support 1, a spring 2 is supported and exerts a spring force F on an actuating lever 3.
- This lever 3 is in turn supported on a fulcrum 4, which also serves as an abutment and is formed on a running unit 5, the rollers 6, it may be, for example, a storage similar to a ball screw - on schematically illustrated rollers 6 - on the Support 1 off.
- FIG. 2 of the drawings now shows a schematic representation of an embodiment according to the present invention.
- a running unit 5 can be displaced on the operating lever 3 according to the double arrow 7, d. H.
- a lever length of 1: 1 acts on the fulcrum 4, a reaction force of 2 * F, while the running unit 5 and thus the storage in the form of, for example Casters 6 of the running unit 5 are acted upon only with a spring force F and thus the bearing of the running unit 5 only has to be designed according to the maximum spring force F, but not more according to the double spring force 2 * F.
- FIG. 4 of the drawings is a diagrammatic view of an assembly drawing of the apparatus of the present invention according to one embodiment.
- the leaf spring 17 has two plate-like legs 18, 19, which are connected to a base 20, as will be apparent from FIG. 6 of the drawings.
- the leaf spring 17 In the space between the legs 18, 19 and the base 20 - the leaf spring 17 is U-shaped in a sectional view - there is a drive spindle 21, the operating lever 3 and the running unit 5 is arranged.
- a motor 22 At the base 20, a motor 22 is supported so that it can initiate its resulting from the rotational movement of the drive spindle 21 reaction torque via the base 20 in the leaf spring 17.
- the inclusion of the motor 22 on the base 20 is done via a formed on the base 20 recess 24 (see Fig.
- Fig. 5 of the drawings now shows a schematic compositional view of the arranged on the clutch 9 device for actuating the clutch of FIG. 4.
- the actuating lever 3 via its axiallager furnishedes end 15 an actuating force for opening and / or closing the clutch 9 exert on the thrust bearing 8.
- a "normally open” coupling is shown, which must therefore be pressed to close the clutch active on the actuating lever 3 - the actuating lever then exerts a variable actuation force to close the clutch - is also encompassed by the invention that means
- the device according to the invention also an actuation force for opening the clutch can be exercised.
- Fig. 6 of the drawing now shows an exploded view of an embodiment according to the present invention.
- the U-shaped in an axial longitudinal section leaf spring 17 has plate-shaped legs 18, 19, which are connected to each other by means of a base 20 - on which the recess 24 is formed.
- a drive spindle 21 passes through an opening 28 formed on the base 20 and extends into the space between the two legs 18, 19th
- An actuating lever 3 designed as a closed circumferential profile frame 29 has a curved configuration in an axial longitudinal section (see FIG. 4 of the drawing) and has two axial bearing-side ends 15 via which an actuating force can be exerted, for example, on a thrust bearing of a coupling.
- a running unit 5 has a housing 30 for receiving a bearing 31. At the top of the housing 30 extends a receptacle 32 which is penetrated by a shaft 34 mounted thereon via sleeves 33 or a rolling bearing in the form of a needle bearing, for example.
- the shaft 34 rolls on the provided preferably with a hardened track actuating lever 3 (ie in Fig. 6 of the drawing at the top of the actuating lever 3) and acts on the actuating lever 3 with a variable spring force which is introduced into the shaft 34 via rollers 35 which roll on the underside of the plate-shaped leg 19 of the leaf spring 17.
- the spring force thus introduced into the shaft 34 is supported by rollers 36 on the hardened raceway of the actuating lever 3.
- Fig. 7 of the drawing shows an enlarged view of a detail A of FIG. 4 of the drawing.
- a bearing 31 is arranged and lies with its bearing inner ring 38 at thread flanks of the movement thread 26 of the drive spindle. I'm 21 years old.
- a rotational movement of the drive spindle 21 leads to a translational movement of the running unit 5 along the double arrow 27.
- the leg 19 of the leaf spring 17 rests on the rollers 35 of the shaft 34 and exerts a spring force on the actuating lever 3, the arrangement of the running unit is now closer With reference to FIG. 8 of the drawing.
- the motor 22 is supported by its projection 25 on the recess 24 of the base 20 from.
- the drive spindle 21 has a movement thread 26, on which the bearing 31 rests.
- the bearing 31 is arranged in the housing 30, on which a receptacle 32 is arranged.
- the receptacle 32 may have a rolling bearing in the form of, for example, a needle bearing in which the shaft 34 can rotate.
- rollers 36 the running unit 5 is supported on the actuating lever 3 and initiates a spring force introduced from the plate-shaped leg 19 via rollers 35 in the running unit 5 in the operating lever 3 a.
- the drive spindle 21 has a contact radius RSA extending from the center of the drive spindle 21 to the center of the thread flank.
- the bearing inner ring 38 has a radius RLA, which extends from the longitudinal center axis of the bearing 31 to the lateral surface of the bearing inner ring 38.
- the bearing inner ring and the thread flank of the drive spindle are pressed against each other, but at point A and point B have different angular velocities, so that at the location of the smaller surface pressure a relative movement in the contact region occurs and thus slipping with increased wear occurs.
- the invention provides various embodiments of the movement thread and / or the bearing inner ring, which counteract the problem of different angular velocities.
- the embodiment of the drive spindle 21 shown in FIG. 10 of the drawing now shows convex instead of straight thread flanks. Due to this crowning of the thread flanks, the contact surfaces at point A and point B are as close as possible to the thread core diameter, so that RLA largely corresponds to RLB, ie the lateral contact on the bearing ring occurs very close to the bearing inner diameter.
- Fig. 11 of the drawing shows the construction of the drive spindle 21 with two movement threads 26.
- Fig. 12 of the drawing now shows an embodiment of the drive spindle 21 with a thread with a stepped thread flank.
- Fig. 13 of the drawing shows a drive spindle 21 with a catchy thread flank and a bearing 31 with a stepped bearing inner ring 38.
- the bearing 31 and the drive spindle 21 are in turn arranged eccentrically to each other and the equality of the peripheral velocities in the two contact areas is achieved in that Bearing inner ring 38 is stepped, so the radially inner circumferential surface of the bearing inner ring thus has a step.
- the invention also provides a variant of the embodiment of the bearing 31 shown in FIG. 13 of the drawing. This variant is shown in FIG. 14 of the drawing.
- the bearing 31 - which may be a standard bearing - is formed on a ring body 39 with radially inwardly stepped lateral surface, so that in turn the equality of the rotational angular velocities is achieved in both contact areas.
- the invention now provides a device for actuating in particular a clutch of a vehicle with an actuating lever, with which a variable actuating force for opening and / or closing the clutch can be exercised.
- a device for actuating in particular a clutch of a vehicle with an actuating lever with which a variable actuating force for opening and / or closing the clutch can be exercised.
- Leaf spring 37 double arrow
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112006000422T DE112006000422A5 (de) | 2005-03-10 | 2006-02-16 | Vorrichtung zur Betätigung einer Kupplung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005011001.0 | 2005-03-10 | ||
DE102005011001 | 2005-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006094473A1 true WO2006094473A1 (de) | 2006-09-14 |
Family
ID=36217939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2006/000279 WO2006094473A1 (de) | 2005-03-10 | 2006-02-16 | Vorrichtung zur bestätigung einer kupplung |
Country Status (2)
Country | Link |
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DE (1) | DE112006000422A5 (de) |
WO (1) | WO2006094473A1 (de) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012167765A1 (de) * | 2011-06-09 | 2012-12-13 | Schaeffler Technologies AG & Co. KG | Hebelaktor für eine reibungskupplung |
CN101457799B (zh) * | 2007-12-13 | 2013-04-17 | 卢克摩擦片和离合器两合公司 | 用于离合器的分离装置 |
CN103133690A (zh) * | 2011-11-22 | 2013-06-05 | 舍弗勒技术股份两合公司 | 用于离合器的操纵装置 |
FR2994239A1 (fr) * | 2012-08-03 | 2014-02-07 | Valeo Embrayages | Mecanisme de commande d'une butee d'embrayage, notamment pour un embrayage de vehicule automobile |
DE102008058900B4 (de) * | 2008-03-17 | 2015-03-05 | Hyundai Mobis | Kupplungsstellgliedbaugruppe |
KR20190013776A (ko) * | 2016-05-31 | 2019-02-11 | 섀플러 테크놀로지스 아게 운트 코. 카게 | 마찰 클러치용 작동 장치 및 이와 같은 작동 장치를 포함하는 클러치 시스템 |
WO2021228312A1 (de) * | 2020-05-15 | 2021-11-18 | Schaeffler Technologies AG & Co. KG | Scharnieraktor für eine drehmomentkupplung |
WO2021228313A1 (de) * | 2020-05-15 | 2021-11-18 | Schaeffler Technologies AG & Co. KG | Scharnieraktor für eine drehmomentkupplung |
WO2021228314A1 (de) * | 2020-05-15 | 2021-11-18 | Schaeffler Technologies AG & Co. KG | Scharnieraktor für eine drehmomentkupplung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE443510A (de) * | ||||
DE850846C (de) * | 1942-07-25 | 1952-09-29 | Fichtel & Sachs Ag | Reibungskupplung, insbesondere fuer Kraftfahrzeuge |
DE102004009832A1 (de) * | 2003-03-03 | 2004-09-16 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Ausrücksysteme |
-
2006
- 2006-02-16 WO PCT/DE2006/000279 patent/WO2006094473A1/de not_active Application Discontinuation
- 2006-02-16 DE DE112006000422T patent/DE112006000422A5/de not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE443510A (de) * | ||||
DE850846C (de) * | 1942-07-25 | 1952-09-29 | Fichtel & Sachs Ag | Reibungskupplung, insbesondere fuer Kraftfahrzeuge |
DE102004009832A1 (de) * | 2003-03-03 | 2004-09-16 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Ausrücksysteme |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101457799B (zh) * | 2007-12-13 | 2013-04-17 | 卢克摩擦片和离合器两合公司 | 用于离合器的分离装置 |
DE102008058900B4 (de) * | 2008-03-17 | 2015-03-05 | Hyundai Mobis | Kupplungsstellgliedbaugruppe |
WO2012167765A1 (de) * | 2011-06-09 | 2012-12-13 | Schaeffler Technologies AG & Co. KG | Hebelaktor für eine reibungskupplung |
CN103597234A (zh) * | 2011-06-09 | 2014-02-19 | 舍弗勒技术股份两合公司 | 用于摩擦离合器的杠杆致动器 |
CN103133690A (zh) * | 2011-11-22 | 2013-06-05 | 舍弗勒技术股份两合公司 | 用于离合器的操纵装置 |
CN103133690B (zh) * | 2011-11-22 | 2017-05-17 | 舍弗勒技术股份两合公司 | 用于离合器的操纵装置 |
FR2994239A1 (fr) * | 2012-08-03 | 2014-02-07 | Valeo Embrayages | Mecanisme de commande d'une butee d'embrayage, notamment pour un embrayage de vehicule automobile |
KR20190013776A (ko) * | 2016-05-31 | 2019-02-11 | 섀플러 테크놀로지스 아게 운트 코. 카게 | 마찰 클러치용 작동 장치 및 이와 같은 작동 장치를 포함하는 클러치 시스템 |
KR102499173B1 (ko) | 2016-05-31 | 2023-02-13 | 섀플러 테크놀로지스 아게 운트 코. 카게 | 마찰 클러치용 작동 장치 및 이와 같은 작동 장치를 포함하는 클러치 시스템 |
WO2021228312A1 (de) * | 2020-05-15 | 2021-11-18 | Schaeffler Technologies AG & Co. KG | Scharnieraktor für eine drehmomentkupplung |
WO2021228313A1 (de) * | 2020-05-15 | 2021-11-18 | Schaeffler Technologies AG & Co. KG | Scharnieraktor für eine drehmomentkupplung |
WO2021228314A1 (de) * | 2020-05-15 | 2021-11-18 | Schaeffler Technologies AG & Co. KG | Scharnieraktor für eine drehmomentkupplung |
Also Published As
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DE112006000422A5 (de) | 2007-11-22 |
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