WO2017140306A1 - Kupplungsgeberzylinder mit dämpfer - Google Patents
Kupplungsgeberzylinder mit dämpfer Download PDFInfo
- Publication number
- WO2017140306A1 WO2017140306A1 PCT/DE2017/100123 DE2017100123W WO2017140306A1 WO 2017140306 A1 WO2017140306 A1 WO 2017140306A1 DE 2017100123 W DE2017100123 W DE 2017100123W WO 2017140306 A1 WO2017140306 A1 WO 2017140306A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- master cylinder
- clutch master
- piston part
- space
- 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
-
- 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
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
-
- 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
- F16D25/08—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
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0212—Details of pistons for primary or secondary cylinders especially adapted for fluid control
-
- 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
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0215—Control by fluid pressure for damping of pulsations within the fluid system
Definitions
- the invention relates to a clutch master cylinder for a clutch release system.
- a clutch master cylinder for a clutch release system.
- an axially displaceable piston defines a pressure chamber.
- the pressure chamber is connected to a trailer.
- the pressure chamber is connected via a pressure connection with a clutch slave cylinder.
- Such clutch master cylinders are preferably used in hydrostatic clutch actuating systems of motor vehicles.
- the externally actuated by means of a clutch pedal or in the case of an automated or power-operated friction clutch by means of an actuator piston is axially displaced in the housing to feed pressure medium to the clutch slave cylinder.
- Known clutch master cylinder from the prior art should have a high rigidity and low losses.
- dampers and anti-vibration units or anti-vibration units are provided which are connected to a hydraulic line or pressure line.
- Dampers are used here, for example, for frequencies over 200 hertz and anti-vibration units for frequencies up to 140 hertz.
- the disadvantage here is that to reduce or avoid pedal vibrations and noise additional components are needed, which leads to additional costs.
- a clutch master cylinder is provided, with which a damper or an anti-vibration unit is integrated in the clutch master cylinder.
- the damper and / or the anti-vibration unit is integrated in the piston.
- the piston is designed as a damper and druckverformbar.
- the damper is then acted upon by pressure medium from the primary space.
- an undesired change in volume in the primary chamber can be compensated by the piston, whereby a required "volume intake" takes place through the piston.
- an axially movable sleeve is arranged in the cylinder chamber, in which the piston is guided axially movable.
- a pressure medium connection between the wake and the primary space can be up and steustebar, wherein in the open positions a so-called "Schnuffel ein" of the sleeve is present.
- the caster is thus not on the piston and a piston arranged on the sealing element, but on the sleeve is controlled, resulting in a compact design or an axial space gain.
- the piston has a cavity for forming the damper. This is preferably delimited with respect to the primary space with a cavity wall, which in the radial direction and / or in the axial direction by the pressure medium of the primary space be is alsschlagbar. As a result, a compression deformation of the piston is made possible in a simple manner.
- the cavity wall projects with the cavity at least in sections into the primary space, in particular in the form of a pin.
- the piston can be subjected to simple device-type radial and axial pressure medium.
- the cavity can be simply device-wise open to the secondary space.
- the piston is encompassed by a sealing element.
- a sealing element This can be arranged between a first piston part and a second piston part, wherein the first piston part defines the primary space.
- the cavity is formed in the first piston part. This can for example be closed by the second piston part or it is designed open. Thus, the device is simply the cavity in a single component can be introduced.
- the piston may have a pin portion formed on the first piston part, which projects into the primary space.
- a receiving space which is open to the second piston part and fluidically communicated with the primary chamber via at least one channel and / or an opening can be formed.
- cavity wall can einkragen and be acted upon with pressure medium from the primary space.
- the cylinder space is preferably stepped with a first stage and a second, smaller-diameter stage formed.
- the pin portion on the first piston part or the pin-shaped projecting in the primary space cavity wall of the piston can be inserted.
- a sensor element is provided, which is moved axially in the second stage. Adjacent to the sensor element can then be arranged at the second stage, a sensor.
- the first piston member may have a sleeve shape.
- an annular groove introduced axially from the primary space is provided therein, into which the bush-shaped first piston part with its hollow-cylindrical end section is inserted.
- a sealing means is preferably provided to seal the piston in a device-wise simple manner with respect to the primary space.
- an annular Dichtstoffnut is introduced into an outer wall of the first piston member and / or an annular Dichtstoffnut in a radially outer inner wall of the annular groove of the second piston member, wherein in the Dichtstoffnut or in the seal groove grooves a sealing element dips.
- a sealing element dips.
- an axial collar is preferably provided, which can dive between the outer wall of the first piston member and the annular groove. In its outer and inner wall The axial collar preferably has in each case an annular sealing projection for immersion in a respective sealant groove.
- FIG. 2 shows an enlarged detail of the clutch master cylinder of FIG. 1 in the region of its piston
- Fig. 4 in a longitudinal section a clutch master cylinder according to a third embodiment
- a clutch master cylinder 1 is shown with a cylinder housing 2.
- a cylinder chamber 3 is formed, in which a sleeve 4 is slidably guided.
- a piston 5 is arranged axially movable.
- the piston 5 delimits a pressure chamber 6 or primary chamber, which is connected to a pressure connection 7, wherein a clutch slave cylinder can in turn be connected to the pressure connection 7.
- the sleeve 4 is a pressure medium connection between the pressure chamber 6 and a trailing port 8 up and zuu mortbar. The sleeve 4 is moved with the piston 5.
- a sensor 10 is provided which can detect a displacement path of the piston 5 via a sensor element 11 which is arranged in the piston 5.
- a damper is formed in the piston 5.
- the piston has a first piston part 12 and a second piston part 13.
- the first piston part 12 is designed as a centering part and has a radial collar 14 for this purpose.
- the first piston part 12 is designed like a bush, wherein it is open towards the piston rod 9.
- the radial collar 14 of the first piston member 12 is spaced from an end portion of the first piston member 12 facing the piston rod 9, whereby a hollow cylindrical portion of the first piston member 12 extends from the radial collar 14 toward the piston rod 9.
- a blind hole 15 is introduced, which has its opening towards the piston rod.
- a channel 17 is introduced, which extends approximately in the axial direction.
- the channel 17 extends starting from the blind hole 15 towards a radial bore 18 or radial recess, via which it is connected to the pressure chamber 6.
- the second piston part 13 is designed as a sliding element and has a cavity 19. This is formed as a blind hole and is bounded by a bush-shaped cavity wall 20 which is immersed in the blind hole 15 of the first piston part 12.
- the blind hole recess 15 thus serves as a receiving space for the cavity wall 20.
- the second piston part 13 is further from the pressure chamber 6 forth an annular groove 21 introduced axially, which includes the cavity wall 20. In the annular groove then the sleeve-shaped first piston member 12 is inserted. Between one Inner wall of the first piston part 12 and the annular groove 21 is arranged for sealing a sealing ring 22.
- the cavity 19 is open to the piston rod 9. With its convex, dome-shaped surface, this rests against a concave, dome-shaped surface of the second piston part 13, thus creating the ball joint connection.
- the piston 5 further has a sealing member 23 which is axially supported between the radial collar 14 and the sliding member 13.
- the cavity wall 20 is spaced with its outer circumferential surface and with its end face from the inner walls of the blind hole recess 15 of the first piston member 12 so that it can be acted upon with pressure medium 24.
- a required volume absorption is thus absorbed both on the second piston part 13 and on the sliding ring, by allowing a compression deformation of the second piston part 13.
- An anti-frequency of the damper (second piston part 13) is dependent on the design of the channel 17 and thus adjustable over this.
- FIG. 3 a instead of the sealing ring 22 (O-sealing ring) according to the embodiment in FIG. 2, a hybrid seal is provided.
- a ring-shaped axial collar 26 is provided in the clutch master cylinder 25 of Figure 3a on the sealing element 23, which extends in the axial direction towards the piston rod 9 extends.
- the second piston part 13 for the axial collar 26 is axially stepped back in the region of the annular groove 21 with an annular step 27.
- the axial collar 26 can be arranged between the first piston part 12 and the second piston part 13 in the region of the annular groove 21.
- annular sealing projection 28 extends from an outer wall and an annular sealing projection 29.
- the sealing projection 28 dips into a introduced into the first piston member 12 Dichtungsschut, while the sealing projection 29 is immersed in a sealant groove of the second piston member 13.
- a clutch master cylinder 30 is provided, which in contrast to the embodiment according to Figures 1 to 3b, a cavity 31 for the damping in first piston part 32 has formed.
- the piston part 32 is in this case bush-shaped and passes through the pressure chamber 6 with a pin-shaped portion 33 which extends from the radial collar 14.
- the first piston member 32 in comparison to the pin-shaped portion 33 has a widened portion 34 which extends from the radial collar 14.
- the first piston part 32 is inserted into a second formed as a sliding element piston part 35.
- the second piston part 35 has an approximately cylindrical recess 36.
- the cavity 31 is then closed via the second piston part 35.
- the sealing element 23 is arranged according to the preceding embodiment.
- the cavity 31 is also closed relative to the pressure chamber 6 and is acted upon via the pin-shaped portion 33 from the outside with pressure medium 37.
- a clutch master cylinder 38 which, in contrast to the preceding embodiments, has no movable sleeve. Instead, the clutch master cylinder 38 has a piston 39 which separates a pressure chamber or primary chamber 40 from a secondary chamber 41. From a certain axial displacement of the piston 39 controls in a direction in which the volume of the pressure chamber 40 is increased, a pressure medium connection to a trailing port 42, which is then connected to the pressure chamber 40 and the secondary chamber 41. In the opposite direction, ie in the direction of a reduction of the pressure chamber 40, the piston 39 controls this pressure medium connection from a certain displacement.
- the piston 39 is designed in two parts and has a first piston part 43 and a second piston part 44.
- the first piston part 43 in this case limits the pressure chamber 40 and the second piston part 44 the secondary space 41st
- an annular sealing element 45 and an annular sliding element 46 are arranged between the piston parts 43 and 44.
- the second piston part 44 is connected to a piston rod 47.
- a cavity 48 is formed as a blind hole recess. This is open towards the second piston part 44 and connected via this with the secondary chamber 41.
- the second piston part 43 is configured approximately in the shape of a pin, wherein approximately centrally therefrom an annular portion 49 extends radially away, on which radial centering elements 50 are arranged, on which the sealing element 45 is axially supported.
- a part of the pin-shaped first piston part 43 is in this case arranged in the second piston part 44 and another part in the pressure chamber 40.
- a cavity wall 52 of the first piston part 43 is arranged in the pressure chamber 40, which is radially and axially acted upon by pressure means 53.
- a clutch master cylinder with a cylinder housing in which a cylinder space is formed.
- a sleeve is arranged axially movable, wherein within the sleeve of the piston is slidably guided, which is connected to a piston rod.
- the piston limits this a pressure chamber.
- the pressure chamber can be connected to a clutch slave cylinder.
- a pressure medium connection between the pressure chamber and a caster connection can be opened and closed.
- a damper and / or an anti-vibration unit is integrated.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112017000872.7T DE112017000872A5 (de) | 2016-02-18 | 2017-02-16 | Kupplungsgeberzylinder mit Dämpfer |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016202555.4 | 2016-02-18 | ||
| DE102016202555 | 2016-02-18 | ||
| DE102016210558.2 | 2016-06-14 | ||
| DE102016210558 | 2016-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017140306A1 true WO2017140306A1 (de) | 2017-08-24 |
Family
ID=58264323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2017/100123 Ceased WO2017140306A1 (de) | 2016-02-18 | 2017-02-16 | Kupplungsgeberzylinder mit dämpfer |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE112017000872A5 (de) |
| WO (1) | WO2017140306A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018206044A1 (de) * | 2017-05-10 | 2018-11-15 | Schaeffler Technologies AG & Co. KG | Geberzylinder mit definierter volumenänderung zur schwingungsdämpfung |
| CN113775669A (zh) * | 2021-09-19 | 2021-12-10 | 安徽江淮汽车集团股份有限公司 | 带有离合器半联动点力调整结构的离合主缸及离合系统 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5718316A (en) * | 1993-03-04 | 1998-02-17 | Eaton Corporation | Electronically controlled clutch pedal dashpot driveline torque |
| WO2006000907A1 (en) * | 2004-06-25 | 2006-01-05 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydraulic actuators |
| EP1637793A1 (de) * | 2004-09-21 | 2006-03-22 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Hydraulischer Aktuator mit Schwingungsdämpfer |
| EP2977638A2 (de) * | 2014-07-22 | 2016-01-27 | Schaeffler Technologies GmbH & Co. KG | Tilger zur beseitigung der reiberregten schwingungen im ausrücksystem |
-
2017
- 2017-02-16 WO PCT/DE2017/100123 patent/WO2017140306A1/de not_active Ceased
- 2017-02-16 DE DE112017000872.7T patent/DE112017000872A5/de not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5718316A (en) * | 1993-03-04 | 1998-02-17 | Eaton Corporation | Electronically controlled clutch pedal dashpot driveline torque |
| WO2006000907A1 (en) * | 2004-06-25 | 2006-01-05 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydraulic actuators |
| EP1637793A1 (de) * | 2004-09-21 | 2006-03-22 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Hydraulischer Aktuator mit Schwingungsdämpfer |
| EP2977638A2 (de) * | 2014-07-22 | 2016-01-27 | Schaeffler Technologies GmbH & Co. KG | Tilger zur beseitigung der reiberregten schwingungen im ausrücksystem |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018206044A1 (de) * | 2017-05-10 | 2018-11-15 | Schaeffler Technologies AG & Co. KG | Geberzylinder mit definierter volumenänderung zur schwingungsdämpfung |
| CN113775669A (zh) * | 2021-09-19 | 2021-12-10 | 安徽江淮汽车集团股份有限公司 | 带有离合器半联动点力调整结构的离合主缸及离合系统 |
| CN113775669B (zh) * | 2021-09-19 | 2022-05-10 | 安徽江淮汽车集团股份有限公司 | 带有离合器半联动点力调整结构的离合主缸及离合系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112017000872A5 (de) | 2018-10-25 |
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