WO2012000478A1 - Betätigungseinrichtung für eine reibungskupplung - Google Patents
Betätigungseinrichtung für eine reibungskupplung Download PDFInfo
- Publication number
- WO2012000478A1 WO2012000478A1 PCT/DE2011/001267 DE2011001267W WO2012000478A1 WO 2012000478 A1 WO2012000478 A1 WO 2012000478A1 DE 2011001267 W DE2011001267 W DE 2011001267W WO 2012000478 A1 WO2012000478 A1 WO 2012000478A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cap
- actuating device
- central
- friction clutch
- piston
- 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
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
- F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
- F16D25/083—Actuators therefor
Definitions
- the invention relates to an actuating device for a friction clutch.
- Automatic transmissions have been used for quite some time in different types of motor vehicles. These include, for example, stepped automatic transmissions, dual-clutch transmissions and stepless transmissions.
- an automatic transmission is characterized by a variable transmission ratio between the input speed and the output speed as well as an automatable control of different transmission ratios.
- Gearbox is hereby understood to mean the entirety of the elements involved in the change in the gear ratio and at least temporarily incorporated in the power flow, independently of a possible structural division into different subassemblies.
- a shift command for changing the gear ratio is usually by means of pressure-medium-actuated switching elements such as clutches and / or Brem sen translated into gear shift positions.
- the clutches or brakes are used for the synchronization of various transmission elements and for controlling the power flow within the transmission.
- clutches and brakes are commonly referred to as clutches.
- the clutches used in this case usually have effective surfaces designed as friction linings which, when the clutch is closed, are pressed against each other by means of a mostly axial force and in this way can transmit a torque.
- the return spring may be, for example, a coil spring, a plate spring or a combination of different springs, wherein different spring characteristics can be realized by a combination of different springs.
- the drag torque depends on a large number of different parameters. Among other things, it depends significantly on the air play, that is, on the sum of the distances between the friction linings when the clutch is open. In addition, however, there are a large number of other parameters which have an influence on the magnitude of the drag torque. In this parameter space, depending on the operating state, there is a drag torque optimum with regard to the drag torque over the air clearance.
- the drag torque initially decreases with increasing air play. However, a further increasing air play can favor a so-called lamella wobble, resulting in a significantly increased drag torque.
- the present invention seeks to provide an actuator for a friction clutch in which the induced drag losses of the friction clutch are minimized.
- an actuating device for a friction clutch which has a cylinder which forms a working space.
- an axially movable piston is arranged in the cylinder.
- T he friction clutch exerts a twisting moment on the piston.
- the piston has on the side facing away from the friction clutch on a central initiator.
- the piston is mechanically connected to the central initiator.
- the central initiator is biased by a spring and covered outwards with a cap. The piston of the central initiator at least partially rubs against the cap.
- a preferred embodiment of the actuating device is characterized in that the cap has at least one support point.
- the central initiator has at its end a bulge which rubs at least partially against the support point of the cap.
- a preferred embodiment of the actuating device is characterized in that the cap has a projection.
- the projection is designed such that it is preferably arranged on the housing of the Betreliistsei device side facing the cap.
- a preferred embodiment of the actuating device is characterized in that the housing of the actuating device has a groove.
- the groove in the housing of the actuating device is preferably designed such that the projection of the cap engages positively in the groove.
- a preferred embodiment of the actuating device is characterized in that the cap can be mounted in a predetermined position by the projection against the housing of the actuating device. Through the groove and the projection, the cap is mounted against rotation on the housing of the actuator.
- a further preferred embodiment of the actuating device is characterized in that the cap comprises a tribologi cal favorable material or filler.
- Tribology deals with the scientific description of friction, wear and lubrication as well as the development of technologies for the optimization of friction processes.
- a tribologically favorable material or filler thus has an optimum in terms of friction, wear and lubrication.
- the cap is made of a plastic.
- the cap is made of plastic filled with Teflon and / or carbon fibers.
- a preferred embodiment of the actuating device is characterized in that the central initiator rubs lubricant-free against the cap.
- the central initiator and the cap thus form a kind of dry-running plastic plain bearings.
- a preferred embodiment of the actuating device is characterized in that the central initiator consists of a metallic material.
- the central inserter is made of aluminum.
- a further preferred embodiment of the actuating device is characterized in that the cap has a cylindrical continuous connection, which is preferably arranged laterally on the cap.
- the connection for attaching suitable for a hydraulic line.
- the connection can also be used with a pressure relief valve for draining excess hydraulic fluid.
- the housing has a receptacle for a sensor.
- the sensor is designed as a magnetic sensor.
- the central initiator of the actuating device preferably has a magnet, so that the position of the central initiator can be detected via the sensor.
- Figure 1 is a schematic sectional view of an actuator according to the invention n-direction
- Figure 2 schematically shows a three-dimensional view of a Betuschistseinrichtu ng according to
- FIG. 3 schematically shows a three-dimensional view of a cap
- Figure 4 schematically shows a sectional view of an inventive Actuate supply device.
- FIG. 1 shows schematically a sectional illustration of an actuating device 1 according to the invention.
- the actuating device 1 has a housing 14, in which a central initiator 4 is arranged on a piston 3.
- the central initiator 4 has in the lower left region on a bulge 8, which extends approximately over a quarter of the circumference of the central initiator 4. In the bulge 8, a magnet 13 is arranged.
- D he central inserter 4 is covered with a cap 6.
- the cap 6 is partially shown in a sectional view, so that the shape and position of the central initiator 4 are visible.
- the cap 6 has at the lower end a conclusion 11.
- the connection 11 is designed as a cylindrical, continuous connection piece. In the illustrated embodiment, the port 11 is closed with a closure.
- the cap 6 is made of a plastic, for example.
- the central initiator 4 is made of aluminum, for example.
- the central inserter 4 rests against the cap 6.
- Schleppmomente the Kuppl ung rubs the central inserter 4 on the cap 6 made of plastic.
- a wear-poor friction pairing between the components is achieved than with two components made of aluminum or other metallic materials.
- a plastic-aluminum friction pairing the drag losses of the friction clutch can be reduced.
- FIG. 2 schematically shows a sectional view through a housing 14 of an actuating device 1 according to the invention.
- the piston and the central initiator have been removed for better visibility.
- the cap 6 has support points 7 against which rubs the bulge of the central inserter.
- the cap 6 has for this purpose a correspondingly formed area.
- cap 6 has a projection 9. The projection 9 of the cap 6 engages in a projection 9 of the cap 6 adapted groove 10 of the housing 14 a.
- FIG. 3 schematically shows a three-dimensional view of a cap 6 of the actuating device 1.
- the cap 6 has a recess which is adapted to the outer contour of the central initiator.
- the cap 6 has a region adapted to the bulge of the central incinerator, which has a support point 7, 7 'towards the ends, against which the convexity of the central incinerator rubs.
- a projection 9 For torsion-proof mounting of the cap 6 on the housing of an actuator i st the cap 6 is provided with a projection 9.
- the illustrated embodiment of the cap 6 has this on the lower side, in the region of the bulge of the central initiator, a cylindrical, continuous connection 11. Table of signs 1 Operation note
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201180028970.7A CN102959264B (zh) | 2010-06-29 | 2011-06-16 | 用于摩擦离合器的操纵装置 |
DE112011102223.9T DE112011102223B4 (de) | 2010-06-29 | 2011-06-16 | Betätigungseinrichtung für eine Reibungskupplung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010025430 | 2010-06-29 | ||
DE102010025430.4 | 2010-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012000478A1 true WO2012000478A1 (de) | 2012-01-05 |
Family
ID=44504365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2011/001267 WO2012000478A1 (de) | 2010-06-29 | 2011-06-16 | Betätigungseinrichtung für eine reibungskupplung |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN102959264B (de) |
DE (2) | DE112011102223B4 (de) |
WO (1) | WO2012000478A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6943227B2 (ja) * | 2018-08-31 | 2021-09-29 | トヨタ自動車株式会社 | クラッチレリーズ機構の給脂装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008047835A1 (de) * | 2007-10-15 | 2009-04-16 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Nehmerzylinder und Ausrücksystem |
DE102008061071A1 (de) * | 2008-01-02 | 2009-07-09 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Nehmerzylinder |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4601374A (en) * | 1982-04-22 | 1986-07-22 | Federal-Mogul Corporation | Hydraulic clutch piston and seal |
ES2148025B1 (es) * | 1996-03-21 | 2001-06-01 | Fichtel & Sachs Ag | Dispositivo de desembrague para un embrague de friccion. |
EP0988462B1 (de) * | 1996-12-19 | 2002-10-23 | Volkswagen Aktiengesellschaft | Reibungskupplung |
JP4767555B2 (ja) * | 2005-02-28 | 2011-09-07 | 本田技研工業株式会社 | 車両のクラッチ制御装置 |
CN101203689B (zh) * | 2005-06-24 | 2013-03-06 | 卢克摩擦片和离合器两合公司 | 离合器从动缸装置 |
CN201003555Y (zh) * | 2006-12-19 | 2008-01-09 | 刘勇杰 | 同心式液压分缸 |
-
2011
- 2011-06-16 DE DE112011102223.9T patent/DE112011102223B4/de active Active
- 2011-06-16 DE DE102011104418A patent/DE102011104418A1/de not_active Withdrawn
- 2011-06-16 CN CN201180028970.7A patent/CN102959264B/zh active Active
- 2011-06-16 WO PCT/DE2011/001267 patent/WO2012000478A1/de active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008047835A1 (de) * | 2007-10-15 | 2009-04-16 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Nehmerzylinder und Ausrücksystem |
DE102008061071A1 (de) * | 2008-01-02 | 2009-07-09 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Nehmerzylinder |
Also Published As
Publication number | Publication date |
---|---|
DE112011102223B4 (de) | 2020-09-03 |
CN102959264A (zh) | 2013-03-06 |
DE112011102223A5 (de) | 2013-04-18 |
DE102011104418A1 (de) | 2011-12-29 |
CN102959264B (zh) | 2016-09-28 |
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