WO2016127986A1 - Kolbenanordnung für ein hydraulisches kupplungssystem - Google Patents
Kolbenanordnung für ein hydraulisches kupplungssystem Download PDFInfo
- Publication number
- WO2016127986A1 WO2016127986A1 PCT/DE2016/200041 DE2016200041W WO2016127986A1 WO 2016127986 A1 WO2016127986 A1 WO 2016127986A1 DE 2016200041 W DE2016200041 W DE 2016200041W WO 2016127986 A1 WO2016127986 A1 WO 2016127986A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- cylinder
- adapter
- piston rod
- facing
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/16—Master control, e.g. master cylinders
- B60T11/18—Connection thereof to initiating means
-
- 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
-
- 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
- F16D25/12—Details not specific to one of the before-mentioned types
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- 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
- F16D2025/081—Hydraulic devices that initiate movement of pistons in secondary cylinders for actuating clutches, i.e. primary cylinders
-
- 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
- F16D25/088—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members being distinctly separate from the axis of rotation
Definitions
- the present invention relates to a piston assembly for a hydraulic clutch system.
- the present invention further relates to a cylinder assembly for a hydraulic clutch system and a hydraulic clutch system having such a piston assembly and / or cylinder assembly.
- Master cylinder or slave cylinder as Druckstoffbetusch, GmbHszylinder a pressure medium actuating device for hydraulic clutch systems are widely known in the art.
- a piston is displaceably arranged in the cylinder space in the housing of the pressure medium actuating cylinder, wherein the piston causes by means of a piston side arranged seal, the piston seal, a seal of the cylinder chamber.
- the piston is often set in motion, especially in donor cylinders by a metallic piston rod in motion, which in turn is moved in response to the operation of a clutch pedal.
- a metallic piston rod is often caused to move in response to the movement of a piston actuated by the slave cylinder.
- the piston assembly comprises a piston movable in a cylinder space and a metallic piston rod for transmitting movement to or receiving movement from the piston, the piston having a force transmitting surface facing the piston rod and the piston rod having a force transmitting surface facing the piston wherein an adapter is provided which is disposed between the piston rod facing the power transmission surface of the piston and the piston facing the power transmission surface of the piston rod.
- An above-described piston arrangement provides a simple and cost effective way to gain comfort and / or improved longevity.
- the above-described piston assembly is used in particular for use in a slave cylinder or a master cylinder of a hydraulically actuated clutch system.
- the slave cylinder may in particular be a CSC designated central release (English: concentric slave cylinder), or the master cylinder may in particular be a designated CMC (clutch master cylinder) master cylinder.
- the piston arrangement can be arranged, in particular, in the corresponding cylinder and can there effect the actuation of a clutch, such as a double clutch, by means of a displacement.
- the piston assembly has a movable piston in a cylinder chamber.
- the piston can be equipped with suitable sealing means. conditions, by means of which it rests sealingly against the cylinder.
- suitable sealing means for example, a primary seal and a secondary seal may be provided.
- a primary seal and a secondary seal may be provided.
- the piston assembly further comprises a metallic piston rod.
- a metallic piston rod is in particular a piston rod which has a metal or a metal alloy.
- the piston rod may be made of steel, for example made of steel, wherein the piston rod is not limited to such a material.
- the piston rod is arranged on one side piston side and operatively connected to the piston and on the other hand, when used in a master cylinder, can be connected to an actuator, such as a clutch pedal, for example hydraulically or mechanically, so as to respond to the actuation of the actuator to move the piston and thus to actuate the clutch.
- the piston rod can be connected in addition to the piston with an indentor or releaser or be in operative connection.
- the piston rod is operatively connected to the piston. It is provided in detail that the piston has a force transmission surface facing the piston rod and that the piston rod has a force transmission surface facing the piston. Such power transmission surfaces are in particular configured to forward a force from the piston rod to the piston or vice versa.
- an adapter is provided which is arranged between the piston rod facing the power transmission surface of the piston and the piston facing the power transmission surface of the piston rod.
- the adapter is arranged such that a power transmission from the piston to the piston rod or vice versa is not immediate, but rather between the according to the state of Technology is provided with each other in contact areas of the piston and piston rod of the adapter.
- the contact surfaces of the adapter and the piston or of the adapter and the piston rod are advantageously designed to come into contact with one another such that an advantageous force transmission is made possible, in particular from the piston rod to the piston via the adapter or vice versa.
- the shape or the geometry of the respective contact surfaces of adapter and piston or adapter and piston rod is adapted to each other, so that a slight pivoting of the piston rod relative to the piston can be made possible, so that in particular the piston rod does not have to move purely tanslatorisch, but also a pivoting relative to the axis or stroke movement of the piston can take place, as is basically known for such arrangements.
- thermosetting plastic at least at its power transmission surface, and, for example, if the piston of a plastic, such as in particular of a thermosetting plastic , consists or is partially or completely formed from this material.
- exemplary thermosetting plastics can be epoxy resins in this regard.
- the adapter or the material from which it is designed completely or at least the force transmission surfaces of the adapter that come into contact with the piston and / or the piston rod, has noise-inhibiting or wear-inhibiting properties.
- a noise-inhibiting or wear-inhibiting adapter can be provided which is arranged between piston and piston rod or the mutually facing force transmission surfaces thereof.
- the adapter can only be noise-suppressing or only wear-resistant or noise-inhibiting and wear-resistant.
- a noise-inhibiting property can be understood in particular as meaning a property which permits a reduction in the operating volume of the piston arrangement in at least one operating state.
- a wear-inhibiting property is such a property, by which, compared with a configuration without this adapter, ie with the direct contact of piston and piston rod, the wear during operation of the piston assembly can be reduced.
- a noise development for example in the case of use in a hydraulic clutch system, can significantly increase the sense of comfort of a user of a motor vehicle, for example.
- This can optionally be dispensed with sound-deadening means or their requirements can be reduced, which can reduce the cost and possibly the space requirements, for example, a hydraulic coupling system.
- wear can be reduced by a wear-inhibiting layer, which can significantly improve longevity.
- service intervals can be extended, which can reduce downtime.
- the operation of such an arrangement and a system equipped therewith, such as such as a hydraulic clutch system be particularly cost effective and reliable.
- the materials of the piston and piston rod can be selected for their specific requirements, but it does not need to be considered for any interaction, since the provision of the adapter, a direct contact does not occur. This can possibly reduce costs and improve the properties of piston and / or piston rod with respect to the respective tasks. Furthermore, an improved adaptation to the desired field of application can take place since not only the materials but also the shapes of the piston and piston rod do not have to be adapted to one another. Any different shapes and sizes of the contact surfaces of the piston and piston rod can be made possible in a simple manner by using a correspondingly shaped adapter.
- Such an arrangement can be more cost-effective than, for example, coatings, since the production process of the piston rod and piston need not be modified by a few changes in the components but can be kept cost-effective.
- the above-described piston arrangement thus provides a measure to improve the comfort of the operation of such an arrangement and / or to increase the longevity.
- the adapter may comprise a plastic.
- the adapter may consist of a plastic and thus be formed entirely of a plastic.
- the adapter may comprise or consist of a polyamide, such as PA 6,6.
- suitable plastics allow low-noise and low-wear operation of the piston assembly, if the adapter at least at the contact surface to the piston and / or the Piston rod is provided with this material or is designed from this material. These materials allow use without a significant increase in cost, which can make operation cost-effective despite the provision of the adapter.
- the adapter may be fixed to the piston rod and / or on the piston or may be provided a means for attaching the adapter to the piston and / or on the piston rod, such as by means of frictional engagement.
- the adapter can be connected before or during assembly with the piston rod and / or the piston and then get in contact with the piston or the piston rod, or this arrangement can be inserted in a fixed state in a cylinder.
- a stable arrangement can be realized in a particularly simple manner, accompanied by a rotational relative mobility of piston rod and piston.
- a particularly effective reduction of wear and / or increase in comfort can be realized.
- the piston rod is metallic and the piston is molded from a plastic
- the metal and the plastic of the piston rod and adapter are fastened to each other, wherein between plastic of the piston and the
- Plastic of the adapter may cause a relative movement, which may cause noise or wear.
- the noise pollution can be reduced particularly effective.
- the piston rod is pressed into the adapter and / or if the adapter is pressed into the piston rod.
- a fixation can thus be made possible by a frictional engagement, which can be realized fixing the adapter and piston rod by simply inserting, for example, a mounting portion of adapter or piston rod in a receptacle of the respective other component.
- a particularly simple and therefore cost-effective manufacturing process can be realized.
- the force-transmitting surface of the piston facing the adapter forms a concave inwardly-shaped receptacle and that the force-transmitting surface of the adapter facing the piston is shaped convexly outwardly, or that the force-transmitting surface facing the adapter of the piston is convexly outwardly formed and that the piston-facing power transmission surface of the adapter forms a concave inwardly shaped receptacle.
- the adapter may have a hemispherical shape.
- a cylinder arrangement for a pressure medium actuation in particular for a hydraulic coupling system, comprising a cylinder with a housing and a cylinder space formed in the housing.
- the cylinder arrangement is characterized in that a piston arrangement is at least partially movably guided in the cylinder space, as described in detail above.
- Such a cylinder arrangement thus comprises a cylinder.
- a cylinder may be, for example, a hydraulically actuated slave cylinder or master cylinder for a hydraulic clutch system, in particular for a motor vehicle, as this is basically known.
- a slave cylinder or master cylinder is not limited in its specific design.
- such a slave cylinder can be a CSC slave cylinder, also referred to as a concentric slave cylinder, or can such a slave cylinder be a CSC slave cylinder.
- berzylinder also be referred to as a CMC master cylinder (English Concentric Master Cylinder) designated cylinder.
- the functionality of the respective cylinder can in principle be known to the person skilled in the art.
- the cylinder has, for example, a fluid-flow-through cylinder housing with a pressure chamber formed in the interior, in which the piston is axially movable.
- spring elements can be used, which serve to apply a bias to the piston or the support in the return movement.
- the cylinder can thus serve as a slave cylinder, via the piston rod to actuate an actuator, such as an engaging lever or a release lever of a hydraulic clutch, or to actuate by actuation of the piston by means of actuation of the piston rod a slave cylinder, insofar as the cylinder is a master cylinder ,
- an actuator such as an engaging lever or a release lever of a hydraulic clutch
- actuate by actuation of the piston by means of actuation of the piston rod a slave cylinder, insofar as the cylinder is a master cylinder
- a cylinder in particular for a hydraulic clutch system, can basically be configured in a manner known per se.
- an adapter is arranged between the force transmission surface of the piston facing the piston rod and the force transmission surface of the piston rod facing the piston.
- the above-described cylinder arrangement thus provides a measure to improve the comfort of the operation of such an arrangement and / or to increase its longevity.
- the present invention further relates to a hydraulic clutch system which has a previously described piston arrangement and / or a previously described cylinder arrangement.
- the hydraulic clutch system for example, be part of a vehicle, such as a motor vehicle, for example a car or a truck.
- the hydraulic clutch system may have about a double clutch.
- the cylinder arrangement or the piston arrangement in the hydraulic clutch system can serve as a slave cylinder or as a master cylinder.
- the above-described coupling system provides a measure to improve the comfort of the operation and / or to increase the longevity.
- FIG. 1 shows a schematic sectional view of a cylinder arrangement according to the invention.
- Fig. 2 is a schematic sectional view of a piston assembly according to the invention.
- FIG. 1 shows a schematic and simplified representation of a cylinder assembly 10, in particular a pressure medium actuating cylinder, with a cylinder 1 1, which has a housing 12.
- a cylinder chamber 14 is formed, in which a piston 16 is arranged displaceably.
- the piston 16 can be driven via a piston rod 18 to be displaced in the cylinder chamber 14.
- the piston 16 can be connected to a unit to be actuated by means of a coupling rod, so that the piston rod represented by 18 can also function as such a coupling rod.
- the piston 16 and the piston rod 18 form a piston assembly 20, which is shown in detail in Figure 2. In particular, it is shown in FIG.
- an adapter 22 is provided which is arranged between the force transmission surface 26 of the piston 16 facing the piston rod 18 and the force transmission surface 24 of the piston rod 18 facing the piston 16. It is further shown that the piston rod 18 facing the power transmission surface 26 of the piston 16 forms a concave inwardly shaped receptacle and that serving as a contact surface power transmission surface 28 of the adapter 22 is formed convexly outwardly.
- a piston rod end 30 can by a
- the piston 16 is further designed such that it has at least one seal 34 received in a receptacle 36, which bears against a wall 38 of the cylinder space 14 in a sealing manner.
- the front seal 34 is formed as a seal and arranged to run over the sniffer bore 40.
- a sensor 42 is optionally arranged from the outside, which is connected to an electronic unit, which detects, for example, the position of the piston 16 in the cylinder chamber 14.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112016000744.2T DE112016000744A5 (de) | 2015-02-13 | 2016-01-26 | Kolbenanordnung für ein hydraulisches kupplungssystem |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015202677.9 | 2015-02-13 | ||
| DE102015202677.9A DE102015202677A1 (de) | 2015-02-13 | 2015-02-13 | Kolbenanordnung für ein hydraulisches Kupplungssystem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016127986A1 true WO2016127986A1 (de) | 2016-08-18 |
Family
ID=55486418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2016/200041 Ceased WO2016127986A1 (de) | 2015-02-13 | 2016-01-26 | Kolbenanordnung für ein hydraulisches kupplungssystem |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE102015202677A1 (de) |
| WO (1) | WO2016127986A1 (de) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2281942A (en) * | 1993-09-15 | 1995-03-22 | Automotive Prod France | Hydraulic actuators |
| DE10049913A1 (de) * | 1999-10-18 | 2001-04-19 | Luk Lamellen & Kupplungsbau | Geberzylinder |
| EP1655521A1 (de) * | 2004-11-05 | 2006-05-10 | FTE automotive GmbH | Kolbenanordnung einer hydraulischen Betätigungseinrichtung an Kraftfahrzeugen |
| WO2006066542A2 (de) * | 2004-12-22 | 2006-06-29 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Gelenkverbindung zu einer ausrückvorrichtung |
| DE102011102855A1 (de) * | 2010-06-14 | 2012-01-12 | Schaeffler Technologies Gmbh & Co. Kg | Hydraulisches Kupplungs- oder Bremsbetätigungssystem |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831916A (en) * | 1987-06-01 | 1989-05-23 | Leigh Monstevens Keith V | Piston assembly |
| DE3910691C2 (de) * | 1989-04-03 | 1998-07-09 | Teves Gmbh Alfred | Fluidaggregat |
| FR2812923B1 (fr) * | 2000-08-11 | 2002-10-25 | Valeo | Dispositif d'accouplement d'un levier au piston d'un cylindre de commande |
| DE102009021348A1 (de) * | 2008-06-05 | 2009-12-10 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Geberzylinder |
| DE102009005828A1 (de) * | 2009-01-22 | 2010-07-29 | Fte Automotive Gmbh | Nehmerzylinder für ein schwingungsgedämpftes hydraulisches Kraftübertragungssystem, insbesondere eine hydraulische Kupplungsbetätigung für Kraftfahrzeuge |
-
2015
- 2015-02-13 DE DE102015202677.9A patent/DE102015202677A1/de not_active Withdrawn
-
2016
- 2016-01-26 WO PCT/DE2016/200041 patent/WO2016127986A1/de not_active Ceased
- 2016-01-26 DE DE112016000744.2T patent/DE112016000744A5/de not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2281942A (en) * | 1993-09-15 | 1995-03-22 | Automotive Prod France | Hydraulic actuators |
| DE10049913A1 (de) * | 1999-10-18 | 2001-04-19 | Luk Lamellen & Kupplungsbau | Geberzylinder |
| EP1655521A1 (de) * | 2004-11-05 | 2006-05-10 | FTE automotive GmbH | Kolbenanordnung einer hydraulischen Betätigungseinrichtung an Kraftfahrzeugen |
| WO2006066542A2 (de) * | 2004-12-22 | 2006-06-29 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Gelenkverbindung zu einer ausrückvorrichtung |
| DE102011102855A1 (de) * | 2010-06-14 | 2012-01-12 | Schaeffler Technologies Gmbh & Co. Kg | Hydraulisches Kupplungs- oder Bremsbetätigungssystem |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015202677A1 (de) | 2016-08-18 |
| DE112016000744A5 (de) | 2017-11-16 |
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