WO2017140307A1 - Kupplungsgeberzylinder - Google Patents
Kupplungsgeberzylinder Download PDFInfo
- Publication number
- WO2017140307A1 WO2017140307A1 PCT/DE2017/100124 DE2017100124W WO2017140307A1 WO 2017140307 A1 WO2017140307 A1 WO 2017140307A1 DE 2017100124 W DE2017100124 W DE 2017100124W WO 2017140307 A1 WO2017140307 A1 WO 2017140307A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sleeve
- stop
- piston rod
- piston
- master cylinder
- 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
-
- 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 slave cylinders for actuating clutches, i.e. master cylinders
Definitions
- the invention relates to a clutch master cylinder with a cylinder housing in which an axially displaceable piston delimits a pressure chamber, which with a
- Pressure port is connected to a Kupplungs dormitory is connectable.
- Such clutch master cylinders are preferably used in hydrostatic clutch actuating systems or clutch release systems of motor vehicles.
- the piston actuated from the outside 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, wherein the pressure chamber is reduced and a piston of the clutch slave cylinder is acted upon by a connected to the pressure port line system with pressure medium and is displaced axially.
- the friction clutch can be actuated.
- the disadvantage here is a high space requirement, in particular in the axial direction and a device complex design.
- a clutch master cylinder having a cylinder housing in which a cylinder space connectable to a trailer is formed.
- a cylinder space connectable to a trailer is formed in which a cylinder space connectable to a trailer is formed.
- an axially movable sleeve is arranged, in which a piston connected to a piston rod is guided.
- a pressure medium connection between the cylinder chamber and the primary space is up and zuu Kunststoffbar.
- the sleeve is movable in the direction of its open position via a frictional connection between the sealing element of the piston and the sleeve together with the piston.
- the sleeve has a stop, by means of which it can be moved in the direction of its open position by the piston and / or the piston rod.
- the stop provided on the sleeve is preferably formed integrally therewith, which advantageously leads to a small number of components and thus to a simple assembly.
- the stop for the sleeve is formed at the end pointing to the piston rod end portion as a radially inwardly cantilevered stop portion, which is extremely simple in terms of device technology.
- the stop may be connected as a stop element with the sleeve at its end pointing to the piston rod end and collar radially inwardly.
- the stop has a stop opening, through which the piston rod is carried out during assembly.
- a circumferential shape of the guided through the stop opening rod portion of the piston rod in the longitudinal direction of the piston rod and a cross section of the stop opening is preferably designed such that in an arrangement of longitudinal axes of the stop opening and the piston rod after assembly in the parallel distance is a positive engagement.
- the configuration takes place in such a way that there is a positive connection after assembly during a pivoting of the piston rod about its longitudinal axis.
- the piston rod can be mounted with little device complexity and no longer emerge from the sleeve after assembly with its rod section.
- a stop transport lock
- the stop opening is formed eccentrically to the sleeve, that is, a longitudinal axis of the stop opening is arranged offset to the longitudinal axis of the sleeve. This can be achieved in a simple manner by a parallel distance of the longitudinal axis of the piston rod from a longitudinal axis of the stop opening after assembly a positive connection.
- the stop opening is designed circular, which is easy to produce.
- a peripheral shape of the rod portion, which is passed through the stop opening, is then also preferably circular.
- the longitudinal axis of the piston rod is preferably arranged approximately coaxially to the longitudinal axis of the sleeve.
- the stop opening and the rod section of the piston rod which can be passed through the stop opening have approximately the same cross-sectional shape, which in this case deviates from a circular shape.
- a stop member is mounted in the cylinder housing, on which the sleeve can be struck in the direction of its opening position with the stop ring.
- a cross section of an opening of the stop member corresponds approximately to the cross section of the stop opening of the stop ring.
- the stop element is preferably a stop ring or snap ring inserted into the sleeve, which is extremely simple in terms of device technology.
- the stop element is formed as a stop ring, which is locked to the sleeve via latching means and / or screwed and / or glued and / or welded.
- two half-shells are provided as a stop. These can form a stop ring when assembled.
- the half-shells are preferably arranged outside on the sleeve and positively connected to the sleeve in both axial directions. They can be collared radially inwards so that the piston rod or the piston can be applied.
- the half shells are preferably held or bounded in the radial direction by the cylinder housing or by a component arranged in the cylinder housing, such as, for example, a holding element for a sealing element or the stop part. Due to the two half-shells a simple assembly is possible and there are no additional securing means for holding the half-shells required.
- At least one pin and / or at least one needle and / or at least one wire-forming spring and / or at least one retaining clip, which are each connected to the sleeve, are provided as a stop element.
- the piston preferably has a cylindrical piston portion, which is encompassed by the sealing element and a sliding element, and wherein a radial collar extends away from the piston between which and the piston rod, the sealing element and the sliding element are arranged. The sliding element can then rest on the piston rod.
- the cylinder space is formed as a blind hole recess, from whose bottom surface extends from a pressure connection for the clutch slave cylinder.
- a sealing element or a sniffer seal is preferably arranged, which surrounds the pressure connection.
- the sleeve can be applied with a sleeve bottom. In the case bottom an eccentric passage opening for connection to the inner sleeve pressure chamber is introduced. When closed, a fluid connection between the wake and the pressure port is blocked.
- the sealing element engages in the closed state, the passage opening, whereby a part of the outer surface of the sleeve bottom radially outside of the sealing element lies and is acted upon by pressure medium of the wake.
- An entire inner surface of the sleeve bottom is acted upon by the pressure medium of the pressure chamber, whereby a resulting pressure force acts on the sleeve bottom in the direction of the closed position of the sleeve.
- FIG. 1 shows a longitudinal section of a clutch master cylinder according to a first exemplary embodiment, an enlarged detail of the clutch master cylinder of FIG. 1 in the region of a stop of a sleeve,
- FIG. 3 shows an exploded view of a sleeve and a piston rod according to a further exemplary embodiment
- FIG. 4 shows a longitudinal section of a clutch master cylinder according to a further exemplary embodiment
- FIG. 5 shows a sleeve of the clutch master cylinder from FIG. 4,
- FIG. 9 in a perspective illustration a stop part and a stop ring of the clutch master cylinder from FIG. 8, FIG.
- Fig. 1 1 in a perspective view of a half-shell of a stop
- a clutch master cylinder 1 has a cylinder housing 2. In this cylinder space 3 is provided, which is designed as a blind hole recess with a bottom surface 4. In the cylinder chamber 3, an axially movable sleeve 5 is arranged. Within the sleeve 5, in turn, a piston 6 is arranged axially displaceable, which is connected to a piston rod 7. The piston 6 defines with its side facing the bottom surface 4 a pressure chamber 8 or primary space. This is connectable via a pressure connection 9, which extends from the bottom surface 4, with a clutch slave cylinder. The pressure port 9 is in this case encompassed by a sealing element 10, which is arranged in the bottom surface 4. The sleeve 5 can abut in its pointing to the bottom surface 4 end face of the sealing element 10, whereby a pressure medium connection of a discount port not shown and the pressure chamber 8 is controlled.
- the sleeve 5 has a stop 12, which projects radially inward from its end section 11 facing away from the bottom surface 4, see FIG. 2.
- the stop 12 is thus designed as a radial inner collar on the sleeve 5.
- the piston 6 abut or strike so that it moves the sleeve 5 axially with a sliding movement in a direction away from the bottom surface 4 or in the direction of an enlargement of the pressure chamber 8.
- the sleeve 5 is spaced from the sealing element 10, whereby a pressure medium connection between the pressure chamber 8 and the tailing connection, not shown, is opened.
- the stopper 12 is integrally formed with the sleeve 5, wherein the sleeve is, for example. Made in a deep-drawing process.
- the stop 12 is designed as an inner collar, which has an approximately circular opening cross section, whose longitudinal axis extends approximately coaxially to the longitudinal axis of the sleeve 5.
- the piston 6 has a cylindrical piston part 13, from which a radial collar 14 extends.
- the piston part 13 with the radial collar 14 serves as a centering element.
- the cylindrical piston member 13 is further comprised of a sealing member 15 in the form of a hybrid gasket.
- the radial collar 14 delimits with its side facing the bottom surface 4, see also Fig. 1, the pressure chamber 8, wherein the sealing element 15 is arranged on a different axial side.
- a sliding element 16 is provided, which is designed sleeve-shaped, and in which the cylindrical piston part 13 is immersed.
- a sealing element 18a is provided as a secondary seal. This seals the space bounded by the sleeve 5 and the cylinder space 3 to the outside.
- the sleeve 5 rests against the sealing element 18a with its end face facing away from the bottom surface 4, both in its closed position and in its open position. Furthermore, the sleeve 5 is acted upon by the sealing element 18a with an axial force in the direction of the bottom surface 4.
- a sleeve 19 is shown, in the front side also integrally a stop 20 is formed.
- a stop opening 21 in this case has a shape deviating from a circular shape.
- An end-side rod portion 22 of a piston rod 23 here has an approximately corresponding area in cross-section, whereby the piston rod 23 with the rod portion 22 through the stop opening 21 is feasible and can dip into the sleeve 19.
- the piston rod 23 After immersing the rod portion 22, the piston rod 23 is pivoted about its longitudinal axis, so that the cross-sectional area of the rod portion 22 and the stopper opening 21 get out of their cover and the rod portion 22 then engages behind the sleeve 19 and the sleeve 19 forms a positive connection with the piston rod 23 , Preferably, the piston rod 23 is pivoted about 90 °.
- the colleague rod 23 after assembly for example, with the piston 6 of FIGS. 1 and 2 connected via snap hooks 17 and 18, so they can not get out of the sleeve 19 during transport. 4
- a clutch master cylinder 24 is shown, in which the sleeve 5 has a stop 25 which has a stop opening 26.
- a longitudinal axis of the stop opening 26 is offset from a longitudinal axis of the sleeve 5, whereby the stop opening 26 is arranged eccentrically. This is also apparent from FIG. 5, where the sleeve 5 is shown with the stop opening 26. 4, a piston rod 27 can be inserted with its rod portion 28 into the stop opening 26, wherein a longitudinal axis of the stop opening 26 and the piston rod 27 extend approximately coaxially. 4, the piston rod 27 is offset in parallel, whereby the longitudinal axis 29 of the piston rod 27 and the longitudinal axis 30 of the stop opening 26 extend approximately parallel to each other. Furthermore, the longitudinal axis 29 of the piston rod 27 extends approximately coaxially to the longitudinal axis of the sleeve 5.
- a piston 31 By the parallel displacement of the piston rod 27, this engages behind the sleeve 5 via the stop 25.
- a piston 31 also has snap hooks, which are not shown. If the piston 31 is connected to the piston rod 27 via the snap hooks, then this remains in the parallel offset position.
- a clutch master cylinder 32 has a sleeve 33 which, in contrast to the previous embodiment, has a radially widened end portion 34 on its side facing away from a bottom surface, not shown.
- a snap ring 35 is used as a stop for a piston rod 36.
- the snap ring 35 is inserted into the sleeve 33 after assembly of the piston rod 36.
- a clutch master cylinder 37 is shown, in which also a widened sleeve 38 is provided.
- This has at its widened end portion 39 a plurality of radial holes 40, which are arranged, for example, on a pitch circle.
- an annular stop member 41 with its locking lugs.
- the stop element 41 is thus locked within the widened end portion 39 with the sleeve 38. It serves as a stop for a piston rod 42.
- the Sleeve 38 an outer radial collar 43, via which it is axially supported on a cylinder mounted in the housing 2 sealing member 44 which acts as a secondary seal.
- a clutch master cylinder 45 is shown with a sleeve 46 which is engaged behind at its end portion 47 by a stop element 48 or stop ring for latching.
- the end portion 47 is hereby slightly bent radially outwards, whereby a kind of outer radial collar is provided, which is engaged behind by latching lugs from the stop element 48.
- the stop element 48 then projects radially inwards and forms a stop for the piston rod 49.
- the sleeve 46 with the stop element 48 fastened thereto is supported in a direction away from the bottom surface 4 in its end position on a holding element 50 or stop member ,
- the holding element 50 serves to hold the sealing element 44, which is configured according to the embodiment in FIG. 7.
- the stop member 50 has an opening 51 whose cross section deviates from a circular shape.
- the stop opening 52 also deviates from the circular shape.
- two curved surfaces 53 and 54 are provided which lie geometrically approximately on a common circular cylinder.
- two projections 55 and 56 are formed on the holding element 50, which extend in the axial direction and also have curved surfaces which are geometrically approximately on a common circular cylinder.
- the stop member 48 is then pivotally mounted by the surfaces 53 and 54 abut slidably thereto.
- the opening 51 and the stop opening 52 are configured the same except for the curved surfaces 53 and 54 approximately in cross section.
- the openings 52 and 51 are brought from their cover, whereby the piston rod 49 with its widening th rod portion 57, see Fig. 8, can not be led out through the rod section.
- the holding member 50 has on its side facing the sleeve 46 four recesses 59 which are arranged on a pitch circle.
- the stop member 48 engages with holding nubs 60, whereby the stop member 48 is fixed in the circumferential direction in the assembled state.
- the sleeve 46 has an end section 61 facing the bottom surface 4, which has a sleeve bottom 62.
- a passage opening 63 is introduced, which connects the pressure chamber 8 with the pressure port 9.
- the passage opening 63 is arranged eccentrically.
- a sealing element 64 in the form of a sealing ring, which surrounds the pressure connection 9, is arranged in the bottom surface 4.
- the sleeve 46 can be applied in such a way that the sealing element 64 engages around the passage opening 63. Surface portions of the end face of the sleeve 46, which lie in the closed state of the sleeve 46 radially outside of the sealing element 64, are acted upon by pressure medium from the wake.
- the entire in one direction away from the bottom surface 4 facing inner surface of the sleeve bottom 62 can be acted upon by the pressure medium of the pressure chamber 8.
- This pressure medium acts on the sleeve 46 via the sleeve bottom 62 in the direction of the closed position of the sleeve 46 when it bears against the sealing element 64.
- In the open state of the sleeve 46 of the sleeve bottom 62 is pressure balanced.
- FIG. 10 shows a clutch master cylinder 65 which, in contrast to the embodiment of FIG. 8, has two half shells 66 and 67 as stops, which engage behind the end section 47.
- Fig. 1 one of the half-shells 66, 67 is shown. These are easy to install and are radially supported by the holding element 50 in the inserted state.
- a clutch master cylinder with a cylinder housing in which an axially movable sleeve is arranged.
- a pressure medium connection between a wake and a pressure connection which is connected to a clutch merzylinder is connected, open and zuquaint.
- a piston is arranged axially displaceable, which is connected to a piston rod and limits a pressure space in the sleeve.
- a sealing element is arranged, via which he moves by frictional engagement with the sleeve in a sliding movement.
- a stop may be provided on the sleeve against which the piston and / or the piston rod abuts in order to displace the sleeve in an axial direction.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112017000878.6T DE112017000878A5 (de) | 2016-02-18 | 2017-02-16 | Kupplungsgeberzylinder |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016202554 | 2016-02-18 | ||
DE102016202554.6 | 2016-02-18 | ||
DE102016210559.0 | 2016-06-14 | ||
DE102016210559 | 2016-06-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017140307A1 true WO2017140307A1 (de) | 2017-08-24 |
Family
ID=58264324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2017/100124 WO2017140307A1 (de) | 2016-02-18 | 2017-02-16 | Kupplungsgeberzylinder |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112017000878A5 (de) |
WO (1) | WO2017140307A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016219768A1 (de) | 2016-10-12 | 2018-04-12 | Schaeffler Technologies AG & Co. KG | Kupplungsgeberzylinder mit einem in einen Hohlraum einer Kolbenstange eingreifenden Anschlag |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002014705A1 (fr) * | 2000-08-11 | 2002-02-21 | Valeo | Dispositif d'accouplement d'un levier au piston d'un cylindre de commande |
DE102004015228A1 (de) * | 2003-03-31 | 2004-10-21 | Tokico Ltd., Kawasaki | Hauptzylinder |
DE10341470A1 (de) * | 2003-09-05 | 2005-04-07 | Fte Automotive Gmbh & Co. Kg | Hydraulikzylinder |
US20080053086A1 (en) * | 2006-08-31 | 2008-03-06 | Tomonori Mouri | Master cylinder, master cylinder body, and method for producing master cylinder |
DE102007054183A1 (de) * | 2007-11-14 | 2009-05-20 | Zf Friedrichshafen Ag | Druckmittelzylinder mit einem Dämpfungselement |
FR2954421A1 (fr) * | 2009-12-17 | 2011-06-24 | Schaeffler Technologies Gmbh & Co Kg | Carter pour un element a l'interieur d'une voie hydraulique |
WO2014045960A1 (ja) * | 2012-09-20 | 2014-03-27 | 日信工業株式会社 | 液圧マスタシリンダのシリンダ本体の製造方法及び液圧マスタシリンダ |
WO2015189061A1 (fr) * | 2014-06-13 | 2015-12-17 | Valeo Embrayages | Cylindre hydraulique, son procede de fabrication et systeme de commande d'embrayage ou de freinage comprenant ledit cylindre |
-
2017
- 2017-02-16 WO PCT/DE2017/100124 patent/WO2017140307A1/de active Application Filing
- 2017-02-16 DE DE112017000878.6T patent/DE112017000878A5/de not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002014705A1 (fr) * | 2000-08-11 | 2002-02-21 | Valeo | Dispositif d'accouplement d'un levier au piston d'un cylindre de commande |
DE102004015228A1 (de) * | 2003-03-31 | 2004-10-21 | Tokico Ltd., Kawasaki | Hauptzylinder |
DE10341470A1 (de) * | 2003-09-05 | 2005-04-07 | Fte Automotive Gmbh & Co. Kg | Hydraulikzylinder |
US20080053086A1 (en) * | 2006-08-31 | 2008-03-06 | Tomonori Mouri | Master cylinder, master cylinder body, and method for producing master cylinder |
DE102007054183A1 (de) * | 2007-11-14 | 2009-05-20 | Zf Friedrichshafen Ag | Druckmittelzylinder mit einem Dämpfungselement |
FR2954421A1 (fr) * | 2009-12-17 | 2011-06-24 | Schaeffler Technologies Gmbh & Co Kg | Carter pour un element a l'interieur d'une voie hydraulique |
WO2014045960A1 (ja) * | 2012-09-20 | 2014-03-27 | 日信工業株式会社 | 液圧マスタシリンダのシリンダ本体の製造方法及び液圧マスタシリンダ |
WO2015189061A1 (fr) * | 2014-06-13 | 2015-12-17 | Valeo Embrayages | Cylindre hydraulique, son procede de fabrication et systeme de commande d'embrayage ou de freinage comprenant ledit cylindre |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016219768A1 (de) | 2016-10-12 | 2018-04-12 | Schaeffler Technologies AG & Co. KG | Kupplungsgeberzylinder mit einem in einen Hohlraum einer Kolbenstange eingreifenden Anschlag |
Also Published As
Publication number | Publication date |
---|---|
DE112017000878A5 (de) | 2018-10-25 |
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