WO2013037345A1 - Cylindre récepteur pour système de débrayage hydraulique - Google Patents
Cylindre récepteur pour système de débrayage hydraulique Download PDFInfo
- Publication number
- WO2013037345A1 WO2013037345A1 PCT/DE2012/000874 DE2012000874W WO2013037345A1 WO 2013037345 A1 WO2013037345 A1 WO 2013037345A1 DE 2012000874 W DE2012000874 W DE 2012000874W WO 2013037345 A1 WO2013037345 A1 WO 2013037345A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seal carrier
- slave cylinder
- seal
- sealing element
- cylinder according
- 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
- F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
- F16D25/083—Actuators therefor
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
- F16J15/3236—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips with at least one lip for each surface, e.g. U-cup packings
-
- 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
- F16D2300/00—Special features for couplings or clutches
- F16D2300/08—Details or arrangements of sealings not provided for in group F16D3/84
Definitions
- the invention relates to a slave cylinder for a hydraulic release system of a friction clutch of vehicles, with a concentrically arranged to a transmission input shaft and a cylinder housing in a longitudinal bore of the cylinder housing radially spaced to form a circular pressure chamber provided guide sleeve, wherein in the pressure chamber, an annular piston axially displaceable is guided, on which pressure chamber side, a seal is arranged, which consists of a connected to the annular piston seal carrier and a received in a receiving opening of the seal carrier sealing element.
- Such a release system is known for example from DE 197 24 988 A1.
- the annular piston of the slave cylinder made of plastic, aluminum or a non-ferrous metal casting seal carrier is positively connected.
- the elastic sealing element is received in a form-fitting manner in a receptacle of the seal carrier, whereby different stiffening elements are provided in or on the seal carrier for better fastening of the seal within the receptacle.
- a generic hydraulic release system also known as CSC (Concentric Slave Cylinder) - described, in which the annular piston of the slave cylinder pressure chamber side is provided with a sealing element which is attached by a front side of the annular piston seal carrier is recorded.
- the sealing element is formed by a lip seal with an outer lip and an inner lip, which are arranged radially spread apart in a V-shaped manner.
- the outer lip comes to the inner diameter of the cylinder housing and the inner lip on the outer diameter of the guide sleeve sealingly to the plant.
- With its one sealing foot and a sealing back comprehensive sealing body engages the sealing element to create a positive connection in a corresponding receptacle of the seal carrier.
- the object of the invention is therefore to reduce failures or functional impairments due to poor seals in slave cylinders for hydraulic release systems and to facilitate the assembly process.
- a slave cylinder for a hydraulic release system of a friction clutch of vehicles, with a concentrically arranged to a transmission input shaft and a cylinder housing in a longitudinal bore of the cylinder housing radially spaced to form an annular pressure chamber provided guide sleeve, wherein in the pressure chamber, an annular piston is axially displaceably guided which a sealing space is arranged on the pressure chamber side, which consists of a seal carrier connected to the annular piston and a received in a receiving opening of the seal carrier sealing element is provided according to the invention in the seal carrier at least one vent hole.
- vent hole running in the axial or approximately axial direction is provided in a radially arranged base of the seal carrier, which is essentially U-shaped in cross-section.
- a plurality of vent holes distributed over the circumference are arranged in the seal carrier.
- a radially encircling groove is provided in the bottom of the seal carrier on the side facing the sealing element, which preferably has a configuration optimized with respect to a gap extrusion.
- a further advantageous embodiment provides that further vent holes are arranged in the groove.
- the seal carrier is made of plastic.
- FIG. 1 shows a partial section of a slave cylinder according to the prior art.
- Fig. 2 shows a first embodiment of a slave cylinder according to the invention in a partial section
- Fig. 3 shows a second embodiment of a slave cylinder according to the invention in a partial section
- Fig. 1 shows a partial section of a slave cylinder (CSC) according to the prior art.
- the slave cylinder has a concentric with a transmission input shaft - here represented by a rotation axis A - arranged cylinder housing 1.
- a guide sleeve 3 is provided in a longitudinal bore of the cylinder housing 1 in a longitudinal bore of the cylinder housing 1 in a longitudinal bore of the cylinder housing 1 in a longitudinal bore of the cylinder housing 1 is radially spaced to form an annular pressure chamber 2, a guide sleeve 3 is provided in a longitudinal bore of the cylinder housing 1 radially spaced to form an annular pressure chamber 2, a guide sleeve 3 is provided.
- annular piston arranged axially displaceable in the pressure chamber 2 a (not shown here) annular piston arranged axially displaceable.
- seal carrier 4 and a sealing element 5 can be seen in a schematic representation during the assembly process.
- seal carrier 4 and the sealing element 5 received by the latter form a seal in the installed state, which is fastened axially by means of seal carrier 4 to the annular piston and together with the cylinder housing 1 and the guide sleeve 3 encloses the pressure chamber 2.
- seal carrier 4 and the sealing element 5 received by the latter form a seal in the installed state, which is fastened axially by means of seal carrier 4 to the annular piston and together with the cylinder housing 1 and the guide sleeve 3 encloses the pressure chamber 2.
- the seal carrier 4 has a cross-sectionally substantially U-shaped, annularly extending, receiving opening 4.0 for receiving the lip seal trained, annular sealing element 5.
- the here in cross-section U-shaped receiving opening 4.0 is formed from a radial bottom 4.1 of the seal carrier 4 and two axial legs 4.2, 4.3, which comprise a part of the sealing element 5 in the mounted state of seal carrier 4 and sealing element 5.
- the outer axial leg 4.2 is facing the cylinder housing 1 and the inner axial leg 4.3 of the guide sleeve 3.
- the sealing element 5 made of an elastomer is preferably a lip seal with an outer lip 5.1 and an inner lip 5.2, which are arranged radially spread apart in a V-shaped manner.
- the sealing element 5 comprises a sealing foot 5.3 and a sealing back 5.4, which constitute the part of the sealing element 5, which engages in the corresponding receiving opening 4.0 of the seal carrier 4.
- the arrow labeled "M" in Fig. 1 indicates the mounting direction during the assembly of the sealing element 5 and the seal carrier 4. During the assembly process, between the sealing foot 5.3 of the sealing element 5 and the bottom 4.1 and a part of the legs 4.2, 4.3 of the seal carrier 4 air pockets X, which can not escape - with the adverse consequences described above.
- the assembly process has already advanced since the air present between the sealing element 5 and the seal carrier 4 in the receiving opening 4.0 can escape.
- the seal carrier 4, preferably made of plastic, and the sealing element 5 made of an elastomer are also located here between the cylinder housing 1 and the guide sleeve 3 in the pressure chamber 2 of the slave cylinder.
- the seal carrier 4 has at least one ventilation bore 4.5, which is arranged in the axial direction in the bottom 4.1 of the seal carrier 4.
- Seal carrier 4 especially between the sealing foot 5.3 of the sealing element 5 and the bottom 4.1 of the seal carrier 4, accumulating air through the vent hole 4.5 are transported.
- a trouble-free assembly process is secured and the sealing element 5 comes to an optimal contact with the axial legs 4.2, 4.3 and the bottom 4.1 of the seal carrier 4.
- Vent holes 4.5 may be provided.
- Fig. 3 shows a further possible embodiment of a slave cylinder according to the invention.
- a radially encircling groove 4.6 is introduced on the sealing element 5 facing side of the bottom 4.1 of the seal carrier 4.
- This groove 4.6 shows optimized in terms of a column extrusion training.
- vent holes can be provided 4.5, which relieve the seal in this area.
- the ventilation bores 4.5 ensure sufficient removal of the air located between the sealing foot 5.3 of the sealing element 5 and the bottom 4.1 of the seal carrier 4 in the receiving opening 4.0 from the seal carrier 4.
- the gap extrusion in this area is not a problem, since locally no critical strains can occur that affect the function of the seal.
- annular sealing carrier 4 of substantially U-shaped cross-section has been described here, which has a likewise formed receiving opening 4.0 for receiving the annular sealing element 5 designed as a lip seal.
- seal carrier 4 / receiving opening 4.0 and sealing element 5 are possible in which during assembly - during insertion of the sealing element 5 in the receiving opening 4.0 of the seal carrier 4 - which is to be transported away in the receiving opening 4.0 air ,
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112012003871.1T DE112012003871A5 (de) | 2011-09-16 | 2012-08-31 | Nehmerzylinder für ein hydraulisches Ausrücksystem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011082879.6 | 2011-09-16 | ||
DE102011082879 | 2011-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013037345A1 true WO2013037345A1 (fr) | 2013-03-21 |
Family
ID=47075977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2012/000874 WO2013037345A1 (fr) | 2011-09-16 | 2012-08-31 | Cylindre récepteur pour système de débrayage hydraulique |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102012215506A1 (fr) |
WO (1) | WO2013037345A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014214195A1 (de) * | 2014-07-22 | 2016-01-28 | Schaeffler Technologies AG & Co. KG | Zentralausrücker zur Betätigung einer Kupplung iin einem Antriebsstrang |
CN106678181A (zh) * | 2017-03-08 | 2017-05-17 | 菲斯达排放控制装置(苏州)有限公司 | 离合器密封圈 |
DE102018121377A1 (de) * | 2018-08-31 | 2020-03-05 | Fte Automotive Gmbh | Zentralaktuator für eine hydraulische oder pneumatische Kupplungsbetätigung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19724988A1 (de) | 1997-06-13 | 1998-12-17 | Schaeffler Waelzlager Ohg | Ringkolbendichtung für ein hydraulisches Ausrücksystem |
DE19949205A1 (de) * | 1998-10-15 | 2000-04-20 | Luk Lamellen & Kupplungsbau | Hydraulisches Ausrücksystem |
DE102008009655A1 (de) | 2007-03-12 | 2008-09-18 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Nehmerzylinder |
-
2012
- 2012-08-31 WO PCT/DE2012/000874 patent/WO2013037345A1/fr active Application Filing
- 2012-08-31 DE DE102012215506A patent/DE102012215506A1/de not_active Withdrawn
- 2012-08-31 DE DE112012003871.1T patent/DE112012003871A5/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19724988A1 (de) | 1997-06-13 | 1998-12-17 | Schaeffler Waelzlager Ohg | Ringkolbendichtung für ein hydraulisches Ausrücksystem |
DE19949205A1 (de) * | 1998-10-15 | 2000-04-20 | Luk Lamellen & Kupplungsbau | Hydraulisches Ausrücksystem |
DE102008009655A1 (de) | 2007-03-12 | 2008-09-18 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Nehmerzylinder |
Also Published As
Publication number | Publication date |
---|---|
DE102012215506A1 (de) | 2013-03-21 |
DE112012003871A5 (de) | 2014-06-05 |
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