CN115087812A - Central separator device - Google Patents

Central separator device Download PDF

Info

Publication number
CN115087812A
CN115087812A CN202180013530.8A CN202180013530A CN115087812A CN 115087812 A CN115087812 A CN 115087812A CN 202180013530 A CN202180013530 A CN 202180013530A CN 115087812 A CN115087812 A CN 115087812A
Authority
CN
China
Prior art keywords
central separator
central
pressure chamber
housing
piston
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
Application number
CN202180013530.8A
Other languages
Chinese (zh)
Inventor
M·雅基
S·克雷奇曼
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 Holding China Co Ltd
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
Publication of CN115087812A publication Critical patent/CN115087812A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00Fluid-actuated clutches
    • F16D25/08Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D25/082Fluid-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
    • F16D25/083Actuators therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

The invention relates to a central decoupler device (1) of a hydraulic decoupling system (2), in particular for a clutch system (3) of a motor vehicle (4), comprising a central decoupler housing (5) having an annular central decoupler piston chamber (6), a central separator piston (8) is accommodated in the central separator piston chamber in an axially movable manner by means of a hydraulic fluid (7) which can be supplied to the central separator piston chamber (6), wherein the central separator piston (8) has a central separator piston seal (9), the central separator piston seal seals the central separator piston (8) with respect to the central separator piston chamber (6), wherein the central separator piston chamber (6) is formed in a pressure chamber component (10) formed from aluminum, the pressure chamber component can be coupled to a central separator housing (5) made of plastic.

Description

Central separator device
Technical Field
The invention relates to a central separator device of a hydraulic release system, in particular for a clutch system of a motor vehicle, comprising a central separator housing having an annular central separator piston chamber in which a central separator piston is accommodated in an axially movable manner by means of a hydraulic fluid which can be supplied to the central separator piston chamber, wherein the central separator piston has a central separator piston seal which seals the central separator piston with respect to the central separator piston chamber.
Background
Central decoupler devices of hydraulic decoupler systems, in particular for clutch systems of motor vehicles, are widely known from the prior art.
There is a continuing need to optimize the central separator device with respect to its lifetime, functional reliability and production costs. It is therefore an object of the present invention to provide a central separator device which is improved accordingly.
Disclosure of Invention
The object is achieved by a central decoupler device of a hydraulic decoupler system, in particular for a clutch system of a motor vehicle, comprising a central decoupler housing which has an annular central decoupler piston chamber in which a central decoupler piston is accommodated in an axially movable manner by means of a hydraulic fluid which can be fed to the central decoupler piston chamber, wherein the central decoupler piston has a central decoupler piston seal which seals the central decoupler piston from the central decoupler piston chamber, wherein the central decoupler piston chamber is formed in a pressure chamber component which is formed from aluminum and can be coupled to the central decoupler housing which is formed from plastic.
By using a pressure chamber component formed from aluminum, the friction between the central separator piston seal and the central separator piston chamber can be reduced on the one hand. Furthermore, a pressure chamber component formed from aluminum has a higher resistance to mechanical action of contaminating particles than a pressure chamber component formed from plastic. Since only the pressure chamber component is produced from aluminum, the central separator housing is however also formed from plastic, which results in a favorable production cost.
First of all, the individual elements of the claimed subject matter are set forth in the claims in the order in which they are mentioned and particularly preferred embodiments of the subject matter are described below.
A fully hydraulic clutch system of a motor vehicle can be equipped with a central decoupler, which is also commonly referred to as a Concentric Slave Cylinder (CSC). The concentric slave cylinder can in particular be formed by an annular, hydraulic central release cylinder together with an integrated release bearing, which is arranged centrally in the clutch housing, preferably between the transmission and the clutch, relative to the transmission input shaft, as a result of which a lever in the transmission housing can be dispensed with, as it is used with conventional slave cylinders.
In vehicles with manually operated dry clutches, the pedal force generated by the vehicle is intensified by mechanical means and transmitted to the clutch. In contemporary foot-operated clutches, hydraulic clutch operating devices are used. In a fully hydraulic system, the function of the transmission-side release mechanism is assumed by a central release (CSC — concentric slave cylinder). The central decoupler is disposed directly between the transmission and the clutch in the transmission cover.
Hydraulic decoupling systems usually have a master cylinder which transmits the pressure generated at the master cylinder to a slave cylinder via a hydraulic pressure line. The slave cylinder transmits the hydraulic pressure to a rod system, which can be formed, for example, by a disk spring, by means of an axially displaceable piston and with the interposition of a clutch release bearing. The disk spring acts on a clutch pressure plate which is fixedly and axially displaceably connected to the clutch housing and is braced against a pressure plate which is fixedly connected to the clutch housing. A clutch disk with a clutch lining is arranged between the pressure plate and the clutch pressure plate, wherein the clutch disk forms a friction fit according to the tension between the pressure plate and the clutch pressure plate and closes the friction clutch or opens the friction clutch when the friction fit is removed.
A clutch system for a motor vehicle has the function of coupling or decoupling the driving engine side in a drive train of the motor vehicle in a shiftable manner to or from the transmission side, so that during driving a gear change of the transmission can be effected and the driving engine can thus be operated in a preferred speed/torque range.
In principle, a distinction is made between manually operated clutch systems and automatic clutch systems. In manually operated clutch systems, the engagement or disengagement process is triggered and controlled manually by the driver, for example, by muscle-operated actuation of a clutch pedal.
In an automatic clutch system, the control and actuation are undertaken by electronic control devices and actuators, so that the driver is no longer required to engage in gear changes during driving. Thus, automatic clutch systems also typically do not have a clutch pedal.
In order to enable the driver to also achieve a certain manual involvement during a gear change in an automatic clutch system, steering wheel buttons known for manual gear changes are also known, for example, in automatic clutch systems, in which the clutch and gear change processes are, however, also automatically controlled by the clutch system.
A motor vehicle in the sense of the present application is a land vehicle which is operated by machine force and is not connected to a rail. The motor vehicle can be selected, for example, from the group consisting of: a passenger vehicle (PKW), a cargo vehicle (LKW), a scooter, a motor vehicle, a motorcycle, a bus (KOM), or a tractor.
The central separator housing can be formed in one piece or in several pieces. Preferably, the central separator housing can be formed from a plastic, a metallic material and/or a ceramic material.
A central separator piston chamber formed in the central separator housing serves to receive and guide a central separator piston which is mounted in the central separator housing so as to be linearly movable.
The hydraulic fluid has the following functions in a hydraulic separator system of a motor vehicle: the energy is transmitted in the form of pressure as far as possible without losses, for example in a clutch system of a motor vehicle. In addition to the main task, the hydraulic fluid can also provide lubrication and corrosion protection for the movable components and the metal surfaces of the hydraulic separation system, in particular. In addition, the hydraulic fluid can also lead away impurities (for example caused by wear), water and air and lost heat, among other things.
The central decoupler piston has the function of converting a hydraulic pressure load into a linear movement of the central decoupler piston, wherein this causes the clutch system to be able to be transferred from an engaged operating state into a disengaged operating state. The central separator can have an annular central separator piston or a plurality of central separator pistons (multiple piston separators).
The central separator piston seal seals the linearly movably guided central separator piston against a central separator housing which accommodates the central separator piston. The central separator piston seal can be designed in particular as a sealing ring. The central separator piston seal can be connected in a form-fitting manner to the central separator piston. The positive connection between the central separator piston and the central separator piston seal is particularly preferably designed as a snap connection.
It is particularly preferred that the central separator piston seal is formed from an elastic, particularly preferably rubber-elastic material. The elastic material may preferably be composed entirely or partially of an elastomer, wherein again preferably the elastomer is selected from the group consisting of natural rubber and vulcanized rubber of silicone rubber.
According to a preferred embodiment of the invention, it can be advantageous if the pressure chamber component is produced in an extrusion process.
Furthermore, it can be advantageous if the pressure chamber component has a threaded bore, by means of which the pressure chamber component is connected to the central separator housing via a threaded connection.
In a development of the invention, it can also be preferred that the pressure chamber element is arranged at the central separator housing by means of a rivet connection.
Furthermore, it can be advantageous if the pressure chamber component is connected to the central separator housing by means of a pressing rib, wherein the pressing rib is preferably formed on the central separator housing.
According to a further advantageous embodiment of the invention, it can be preferred that the pressure chamber component is fixed to the central separator housing by means of a snap hook, wherein the snap hook is preferably formed on the central separator housing.
According to a preferred embodiment of the invention, it can be advantageous if the pressure chamber component and the central separator housing have means for securing the pressure chamber component against rotation relative to the central separator housing.
It can also be advantageous if the means for securing against rotation comprise positive engagement of structural elements of the central separator housing and of the pressure chamber component with one another.
In a development of the invention, it can also be preferred that the central separator is designed as a double central separator having a first central separator piston chamber and a second central separator piston chamber spaced radially apart therefrom, wherein the two central separator piston chambers are formed in a pressure chamber component.
Drawings
The invention is further elucidated below without limiting the general inventive concept according to the accompanying drawings. The drawings are merely schematic and are provided for understanding the present invention. Like elements are provided with like reference numerals. The different features of the different embodiments can also be freely combined with one another within the scope of technical feasibility.
The figures show:
figure 1 shows a schematic cross-sectional view of a first embodiment of a central separator device according to the invention,
figure 2 shows a schematic cross-sectional view of a second embodiment of a central separator device according to the invention,
figure 3 shows a schematic cross-sectional view of a third embodiment of a central separator device according to the invention,
figure 4 shows a schematic cross-sectional view of a fourth embodiment of a central separator device according to the invention,
figure 5 shows a cross-sectional detail through the central separator device,
figure 6 shows a cross-sectional and perspective detail view of a first embodiment of the anti-twist device,
figure 7 shows a cross-sectional and perspective detail view of a second embodiment of the anti-twist device,
FIG. 8 shows a cross-sectional and perspective detail view of a third embodiment of the anti-twist device, an
Fig. 9 shows a schematic block diagram of a motor vehicle with a central separator device.
Detailed Description
Fig. 1 shows a schematic cross-sectional view of a first embodiment of a central separator device 1 according to the invention. The central decoupler assembly 1 is provided in particular as a hydraulic decoupler system 2 for a clutch system 3 of a motor vehicle 4, as is illustrated in fig. 9.
The central separator device 1 comprises a central separator housing 5 having an annular central separator piston chamber 6, in which a central separator piston 8 is accommodated in an axially movable manner by means of a hydraulic fluid 7 (shown in fig. 2) which can be fed to the central separator piston chamber 6. The central separator piston 8 has a central separator piston seal 9, which seals the central separator piston 8 with respect to the central separator piston chamber 6. The central separator piston chamber 6 is formed in a pressure chamber component 10 formed from aluminum, which can be coupled to the central separator housing 5 formed from plastic. The pressure chamber component 10 is produced in particular in an extrusion process.
In the exemplary embodiment shown, the pressure chamber component 10 has a threaded bore 11, by means of which the pressure chamber component 10 is connected to the central separator housing 5 by means of a screw connection and is fixed thereto.
Fig. 2 shows a second embodiment of the central separator device 1, in which the pressure chamber component 10 is connected to the central separator housing 5 by means of a riveted connection 12.
Another possible embodiment of the connection between the pressure chamber component 10 and the central separator housing 5 is shown in fig. 3. The pressure chamber component 10 is fixed to the central separator housing 5 by means of a snap hook 14, wherein the snap hook 14 is preferably formed on the central separator housing 5. The snap hooks 14 are distributed over the circumference of the central separator housing 5 and project in the axial direction from the central separator housing 5. At the distal end of the snap-in hook 14, which is spring-elastically designed in the radial direction, a locking projection, not illustrated in any more detail, extends inward in the radial direction, which engages into a cooperatively designed groove of the pressure chamber component 10 in order to positively fix the pressure chamber component 10 relative to the center separator housing 5.
Fig. 4 shows a further possible embodiment of the invention, in which the pressure chamber component 10 is connected to the central separator housing 5 by means of a pressing rib 13, wherein the pressing rib 13 is preferably formed on the central separator housing 5.
In the embodiment shown, the central separator 1 is designed as a double central separator with a first central separator piston chamber 6 and a second central separator piston chamber 6 spaced radially apart therefrom, wherein the two central separator piston chambers 6 are formed in one pressure chamber component 10. In fig. 5, the supply of two central separator piston chambers 6 with hydraulic liquid 7 is shown. The central separator piston chamber 6 is connected here separately to the hydraulic actuating system via a hydraulic line integrally formed in the central separator housing 5.
Fig. 6 to 8 show different possibilities for the design of the torsion-proof device 15, wherein the pressure chamber component 10 and the central separator housing 5 have a torsion-proof mechanism 15 for the pressure chamber component 10 relative to the central separator housing 5. The means 15 for torsion protection shown in all cases comprise positive engagement of structural elements of the central separator housing 5 and of the pressure chamber component 10 with one another.
Fig. 6 shows the torsion-proof device 16, wherein the clamping step is formed at the pressure chamber component 10.
Fig. 7 shows a torsion-proof device 16, in which a pin 16 projecting axially from the central separator housing 5 engages in a matching bore of a radial end face of the pressure chamber component 10.
Fig. 8 shows a further torsion-proof device 16, in which a guide groove 17 is formed at the outer lateral surface of the pressure chamber element 10, into which a matching tongue 18 of the central separator housing 5 engages.
The invention is not limited to the embodiments shown in the drawings. The foregoing description is therefore not to be taken in a limiting sense, but is made merely for the purpose of illustration. It is to be understood that the following claims are directed to features of at least one embodiment of the present invention. This does not exclude the presence of other features. As long as the claims and the above description define "first" and "second" features, the expressions are used to distinguish two similar features without specifying an order.
Description of the reference numerals
1 central separator device
2 Hydraulic separation System
3 Clutch system
4 Motor vehicle
5 Central separator housing
6 central separator piston chamber
7 hydraulic fluid
8 center separator piston
9 center separator piston seal
10 pressure chamber component
11 threaded hole
12 riveted joint
13 extruding rib
14 snap hook
15 mechanism for resisting torsion
16 pin
17 guide groove
18 tenon

Claims (9)

1. A central separator device (1) of a hydraulic separator system (2), in particular for a clutch system (3) of a motor vehicle (4), comprising a central separator housing (5) having an annular central separator piston chamber (6) in which a central separator piston (8) is accommodated axially movably by means of a hydraulic fluid (7) which can be fed to the central separator piston chamber (6), wherein the central separator piston (8) has a central separator piston seal (9) which seals the central separator piston (8) with respect to the central separator piston chamber (6),
it is characterized in that the preparation method is characterized in that,
the central separator piston chamber (6) is formed in a pressure chamber component (10) formed from aluminum, which can be coupled to a central separator housing (5) formed from plastic.
2. Central separator device (1) according to claim 1,
it is characterized in that the preparation method is characterized in that,
the pressure chamber component (10) is produced in an extrusion method.
3. Central separator device (1) according to any of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the pressure chamber component (10) has a threaded bore (11), by means of which the pressure chamber component (10) is connected to the central separator housing (5) by means of a threaded connection.
4. Central separator device (1) according to any of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the pressure chamber component (10) is connected to the central separator housing (5) by means of a riveted connection (12).
5. Central separator device (1) according to any of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the pressure chamber component (10) is connected to the central separator housing (5) by means of a pressing rib (13), wherein the pressing rib (13) is preferably formed on the central separator housing (5).
6. Central separator device (1) according to any of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the pressure chamber component (10) is fixed to the central separator housing (5) by means of a snap-in hook (14), wherein the snap-in hook (14) is preferably formed on the central separator housing (5).
7. Central separator device (1) according to any of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the pressure chamber component (10) and the central separator housing (5) have means (15) for the pressure chamber component (10) to be secured against rotation relative to the central separator housing (5).
8. Central separator device (1) according to any of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the anti-rotation means (15) comprise positive engagement of structural elements of the central separator housing (5) and of the pressure chamber component (10) with one another.
9. Central separator device (1) according to any of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the central separator (1) is designed as a double central separator having a first central separator piston chamber (6) and a second central separator piston chamber (6) spaced radially apart therefrom, wherein the two central separator piston chambers (6) are formed in a pressure chamber component (10).
CN202180013530.8A 2020-03-25 2021-03-08 Central separator device Pending CN115087812A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020108189.8A DE102020108189B4 (en) 2020-03-25 2020-03-25 central slave arrangement
DE102020108189.8 2020-03-25
PCT/DE2021/100228 WO2021190697A1 (en) 2020-03-25 2021-03-08 Central release arrangement

Publications (1)

Publication Number Publication Date
CN115087812A true CN115087812A (en) 2022-09-20

Family

ID=75108101

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202180013530.8A Pending CN115087812A (en) 2020-03-25 2021-03-08 Central separator device

Country Status (3)

Country Link
CN (1) CN115087812A (en)
DE (1) DE102020108189B4 (en)
WO (1) WO2021190697A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6325194B1 (en) * 1998-06-19 2001-12-04 Valeo Hydraulic control clutch device equipped with a guide tube and method for producing such a tube
US20030029692A1 (en) * 1999-08-24 2003-02-13 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Hydraulic operating arrangement for clutches and the like
GB2410778A (en) * 2004-02-04 2005-08-10 Automotive Prod France Annular clutch actuator with deep drawn single piece cylinder
CN101334074A (en) * 2007-06-25 2008-12-31 卢克摩擦片和离合器两合公司 Coupling disengaging system
CN103827533A (en) * 2011-08-05 2014-05-28 舍弗勒技术有限两合公司 Disengaging system
DE102014214421A1 (en) * 2013-07-25 2015-01-29 Schaeffler Technologies Gmbh & Co. Kg Double clutch arrangement with plastic release system
CN110657169A (en) * 2018-06-29 2020-01-07 Fte汽车有限责任公司 Central actuator for hydraulic or pneumatic clutch actuation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19746537A1 (en) 1997-10-22 1999-04-29 Schaeffler Waelzlager Ohg Servo cylinder for hydraulically operated clutch of motor vehicle
FR2803346B1 (en) 1999-12-30 2002-04-26 Valeo DOUBLE CLUTCH, ESPECIALLY FOR A MOTOR VEHICLE

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6325194B1 (en) * 1998-06-19 2001-12-04 Valeo Hydraulic control clutch device equipped with a guide tube and method for producing such a tube
US20030029692A1 (en) * 1999-08-24 2003-02-13 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Hydraulic operating arrangement for clutches and the like
GB2410778A (en) * 2004-02-04 2005-08-10 Automotive Prod France Annular clutch actuator with deep drawn single piece cylinder
CN101334074A (en) * 2007-06-25 2008-12-31 卢克摩擦片和离合器两合公司 Coupling disengaging system
CN103827533A (en) * 2011-08-05 2014-05-28 舍弗勒技术有限两合公司 Disengaging system
DE102014214421A1 (en) * 2013-07-25 2015-01-29 Schaeffler Technologies Gmbh & Co. Kg Double clutch arrangement with plastic release system
CN110657169A (en) * 2018-06-29 2020-01-07 Fte汽车有限责任公司 Central actuator for hydraulic or pneumatic clutch actuation

Also Published As

Publication number Publication date
WO2021190697A1 (en) 2021-09-30
DE102020108189A1 (en) 2021-09-30
DE102020108189B4 (en) 2022-08-18

Similar Documents

Publication Publication Date Title
US3955660A (en) Clutch with flexible coupling between release bearing and levers
US7571795B2 (en) Coupling device of a motor vehicle
US7059128B2 (en) Hydraulic system for a motor vehicle
US7137495B2 (en) Drivetrain
EP0168932B1 (en) Hydraulic slave cylinder
CN101194118A (en) Actuating cylinder for vehicle gearboxes
EP1369613B1 (en) Dual clutch transmission unit for a motor vehicle
US4991702A (en) Motor vehicle clutch control with co-acting multiple actuators mounted apart from the axis of a clutch
CN115087812A (en) Central separator device
DE102020113100A1 (en) Central slave cylinder arrangement
US6432016B1 (en) Driving device
CN111194384B (en) Vibration decoupling system
CN110714996B (en) Connection and disconnection device of clutch
CN115298453A (en) Central separator device
DE102021113270A1 (en) Concentric slave cylinder and hybrid module
CN109844343B (en) Actuator for clutch
DE102020102408A1 (en) Central slave cylinder and process for its production
US20100229716A1 (en) Concentric slave cylinder
GB2147668A (en) A clutch actuator
CN1143931A (en) Driving device
CN115467919A (en) Hydraulic operating device
KR20080097119A (en) Concentric slave cylinder for automobile providing single-piece cup operating part
CN117098927A (en) Central release mechanism and method for installing a central release mechanism
SE503035C2 (en) Device for wear warning at a slave cylinder operated clutch
DE102021127015A1 (en) concentric slave cylinder

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20240322

Address after: 1st Floor, Building 2, No. 1 Antuo Road, Anting Town, Jiading District, Shanghai

Applicant after: SCHAEFFLER HOLDING(CHINA) Co.,Ltd.

Country or region after: China

Address before: German Herzogenaurach

Applicant before: SCHAEFFLER TECHNOLOGIES AG & CO. KG

Country or region before: Germany