EP2898234A2 - Rotating slave cylinder, fixed to a cover - Google Patents
Rotating slave cylinder, fixed to a coverInfo
- Publication number
- EP2898234A2 EP2898234A2 EP13791915.5A EP13791915A EP2898234A2 EP 2898234 A2 EP2898234 A2 EP 2898234A2 EP 13791915 A EP13791915 A EP 13791915A EP 2898234 A2 EP2898234 A2 EP 2898234A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- slave cylinder
- release piston
- release
- flyweight
- clutch
- 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.)
- Withdrawn
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 a rotating cover-fixed slave cylinder according to the preamble of the first claim.
- the vibrations originating from the crankshaft can be transmitted to the clutch and thus to the clutch release bearing resting on a plate spring and thus also to the slave cylinder.
- the rolling bearings used represent a high cost factor and take up a considerable amount of space.
- cover-resistant release devices which dispense with the use of both a cover bearing and a release bearing.
- the concentric slave cylinder is fixed to the clutch cover of the clutch so as to rotate therewith.
- a rotary feedthrough has to be provided.
- a corresponding radial and axial bearing of the stator on the rotor with a functional design of storage locations to ensure safe operation of the seals and thus for the overall system, as well as the use of appropriate seals for rotary feedthrough.
- the hydraulic medium Due to the stationary hydraulic supply, the hydraulic medium is conducted via the rotary feedthrough into the rotating release mechanism. If the pressure is sufficiently high, the release piston is displaced in the axial direction against the diaphragm spring tongues of the plate spring of the clutch. Since the pressure in the system is the same everywhere, this also affects the seals of the rotary feedthrough. By default, the release systems are designed with pressures up to 40 bar. These high pressures in conjunction with the high sliding speeds require structurally very complex seals, which has a negative effect on the cost and the required installation space.
- Hydraulic fluid is passed through the rotary feedthrough in the rotating releaser at a reduced pressure, whereby low-cost seals for the rotary feedthrough can be used.
- Release piston disengages in the direction of the release bearing without actuating the clutch pedal.
- the object of the invention is to develop a cover-fixed slave cylinder, with which an unintentional disengagement of the release piston is prevented even at high speeds.
- the rotating cover-fixed slave cylinder of a release device for the actuation of a clutch of a motor vehicle has a stationary hydraulic supply / stator of a
- a pressure booster is arranged, which reduces the pressure of eg 40 bar on the master cylinder side to 5 bar on the slave cylinder side, which inevitably the hydraulically acting surface must be increased and thereby unwanted disengagement of Ausenburgkolbens pronouncebetätigtem clutch pedal must be prevented.
- the compensation device on one or more flyweight, which can be brought into operative connection with the release piston and act on this with a speed-dependent counterforce.
- the flyweights are radially freely movable and cause via a respective ramp an axial counterforce on the release piston of the slave cylinder.
- the flyweights are received radially freely movable in a flyweight mount.
- the flyweight bracket is attached via snap hooks on the rotor, wherein the flyweight are fixed axially about the circumference in T-shaped guide rails axially and are arranged radially displaceable.
- a pressure plate is attached to the release piston, which act on the plate spring of the coupling in the axial direction.
- the pressure which occurs due to the hydraulic medium in the pressure chamber of the slave cylinder acts on the surface of the release piston with an axial force F F i_ and the force of the flyweight F F M on contact with the ramp of the flyweights is determined by the ramp of the flyweights
- FIG. 1 shows a longitudinal section through a rotating lid-tight slave cylinder
- Figure 2 shows the schematic diagram of a flyweight mount with flyweight.
- Figure 3 shows a three-dimensional representation of the attached to the rotor flyweight bracket with the fly weights and a pressure plate which can be fastened to the release piston by means of snap hooks.
- Actuation of a clutch, not shown, of a motor vehicle has, according to FIG. 1, a stationary hydraulic supply (stator) 2 of a hydraulic medium to a pressure chamber 3 of the rotating slave cylinder (rotor) 1, in which a release piston 4 can be moved axially along the axis of rotation A by pressurizing the hydraulic medium.
- flyweights 5 are radially freely movable but axially fixed to a flyweight bracket 6 added.
- the flyweights 5 have in the direction of the release piston 4 ramps 5.1, which are inclined in the form of slopes at an angle ⁇ radially outward.
- the release piston 4 has a corresponding inclined surface 4.1.
- a pressure plate 7 is fixed in the direction of the disc spring not shown here, which acts on a plate spring of the clutch (not shown) in the axial direction.
- the release piston 4 intervenes in areas
- a rotary feedthrough 8 is provided for the hydraulic medium. Due to the stationary hydraulic supply 2 and the
- Rotary feedthrough 8 the hydraulic medium is passed into the rotating slave cylinder.
- Pressure booster 10 the one in a housing 11 axially displaceable piston 12 with different pressure surfaces in the direction of the master cylinder side and the
- Rotary feedthrough be used.
- flyweights 5 is on the ramps 5.1 when this at the corresponding inclined surface 4.1 of the release piston 4 at a corresponding centrifugal force come to rest on the release piston 4 generates a speed-dependent counterforce, which prevents unwanted disengagement of the release piston 4 when the clutch pedal is not actuated.
- flyweight bracket 6 which can be attached via snap hook 6.1 on the rotor.
- flyweight bracket 6 On the flyweight bracket 6 are the flyweight 5. These are evenly distributed over the circumference and are axail on T-shaped
- the flyweight bracket 6 includes sections 6.3, so that the
- a pressure plate 7 is fixed on the release piston 4 by means of snap hooks 7.1, which is apparent from the illustration in Figure 3.
- the release piston 4, which engages through the cutouts 6.3 of the flyweight bracket 6, has to the Schlapphaken 7.1 corresponding recesses 4.2.
- the flyweights 5 are, as indicated by the arrows, mounted radially outwardly displaceable on the flyweight bracket.
- Hydraulic medium revolve around the inner areas. This effect ensures that only a counterforce can be generated before the release piston unintentionally disengages.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012216696 | 2012-09-19 | ||
PCT/DE2013/200176 WO2014044276A2 (en) | 2012-09-19 | 2013-09-13 | Rotating slave cylinder, fixed to a cover |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2898234A2 true EP2898234A2 (en) | 2015-07-29 |
Family
ID=49585244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13791915.5A Withdrawn EP2898234A2 (en) | 2012-09-19 | 2013-09-13 | Rotating slave cylinder, fixed to a cover |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2898234A2 (en) |
CN (1) | CN104620008B (en) |
DE (2) | DE102013218398A1 (en) |
WO (1) | WO2014044276A2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112013005392B4 (en) * | 2012-11-12 | 2020-01-02 | Schaeffler Technologies AG & Co. KG | Pressure intensifier for a hydraulic path between a master cylinder and a slave cylinder, in particular in the form of a cover-releaser |
DE102013222019A1 (en) * | 2012-11-22 | 2014-05-22 | Schaeffler Technologies Gmbh & Co. Kg | Rotating lid-tight slave cylinder |
EP3844414B1 (en) | 2018-08-27 | 2023-04-12 | Schaeffler Technologies AG & Co. KG | Hybrid module with disconnect coupling and actuating device |
DE102019111526A1 (en) * | 2019-05-03 | 2020-11-05 | Schaeffler Technologies AG & Co. KG | Multi-disc brake device and gear arrangement with the multi-disc brake device |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2673279B2 (en) * | 1987-08-29 | 1997-11-05 | 富士重工業株式会社 | Wet multi-plate clutch |
JPH0762490B2 (en) * | 1988-07-04 | 1995-07-05 | 株式会社大金製作所 | Hydraulic start clutch |
KR100391471B1 (en) * | 2001-07-11 | 2003-07-12 | 현대자동차주식회사 | Return spring in a multi-plate clutch for an automatic transmission |
BRPI0617194B1 (en) * | 2005-10-11 | 2018-08-28 | Luk Lamellen & Kupplungsbau | clutch device |
DE102007005461A1 (en) * | 2007-02-03 | 2008-08-07 | Borgwarner Inc., Auburn Hills | clutch assembly |
KR100883893B1 (en) * | 2007-04-26 | 2009-02-17 | 박동훈 | Hydraulic clutch |
WO2010006577A1 (en) * | 2008-07-14 | 2010-01-21 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Dual clutch |
DE102010024724B4 (en) * | 2010-06-23 | 2023-11-09 | Volkswagen Ag | Multiple clutch for a vehicle |
DE102012202995A1 (en) * | 2012-02-28 | 2013-08-29 | Zf Friedrichshafen Ag | Actuating device of disc clutch used in motor car, has input masses that are radially supported at support ring, such that centripetal force produced by input masses is converted into working power in open position of actuating piston |
-
2013
- 2013-09-13 DE DE102013218398.4A patent/DE102013218398A1/en not_active Withdrawn
- 2013-09-13 EP EP13791915.5A patent/EP2898234A2/en not_active Withdrawn
- 2013-09-13 WO PCT/DE2013/200176 patent/WO2014044276A2/en active Application Filing
- 2013-09-13 CN CN201380047107.5A patent/CN104620008B/en not_active Expired - Fee Related
- 2013-09-13 DE DE112013004551.6T patent/DE112013004551B4/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2014044276A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2014044276A2 (en) | 2014-03-27 |
DE112013004551A5 (en) | 2015-05-28 |
CN104620008A (en) | 2015-05-13 |
DE112013004551B4 (en) | 2020-02-20 |
CN104620008B (en) | 2017-11-14 |
DE102013218398A1 (en) | 2014-03-20 |
WO2014044276A3 (en) | 2014-05-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20150420 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WAGNER, PHILIPPE Inventor name: DERLATH, STEFAN |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WAGNER, PHILIPPE Inventor name: DERLATH, STEFAN |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20190402 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230523 |