WO2006047981A1 - Nehmerzylinder - Google Patents
Nehmerzylinder Download PDFInfo
- Publication number
- WO2006047981A1 WO2006047981A1 PCT/DE2005/001843 DE2005001843W WO2006047981A1 WO 2006047981 A1 WO2006047981 A1 WO 2006047981A1 DE 2005001843 W DE2005001843 W DE 2005001843W WO 2006047981 A1 WO2006047981 A1 WO 2006047981A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- slave cylinder
- fastening
- ring
- housing
- region
- 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
- 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
- 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
- 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 present invention relates to a slave cylinder, in particular for a hydraulic system of a motor vehicle, comprising a housing with an outer tube and a fastening ring and a guide sleeve with an inner tube, wherein the outer tube and inner tube delimit a pressure chamber in which an annular piston axially wherein the foundeds ⁇ sleeve comprises a mounting plate, which is pressed against the mounting ring, wherein between the inner region and the mounting plate in a sealing groove, a seal is arranged and in an outer region of Be ⁇ fastening ring means for exercising a axial force of the mounting ring are arranged on the mounting plate.
- a generic slave cylinder in which the pressure chamber is bounded by an inner metallic cylinder and an outer plastic housing.
- the connection between the two components takes place by screwing to the transmission housing, wherein between the two a seal for sealing the pressure chamber is arranged to the outside.
- the pressure chamber is formed here by two metal tubes arranged concentrically to one another, which are welded together on the side facing the transmission housing.
- the pressure prevailing in operation in the pressure chamber exerts a so-called spreading force, which tries to unscrew both parts.
- the spreading force arises from the fact that a (initially small) um ⁇ running notch is pressed into the seat between the two components by the internal pressure and thus acting perpendicular to the surface pressure force, so that a surface can be acted upon in the axial direction.
- the compressive force thus produces a sectional wedge-shaped circumferential notch, which allows an axially effective spreading force. The larger this notch, the more at the same pressure - as the effective area increases - the spreading force.
- a slave cylinder in particular for a hydraulic system of a motor vehicle, comprising a housing with an outer tube and a fastening ring and a guide sleeve with an inner tube, the outer tube and inner tube defining a pressure chamber in which an annular piston can be arranged axially displaceable and wherein the mecanics ⁇ sleeve comprises a mounting plate, which is pressed against the mounting ring, wherein between the inner region and the mounting plate in a sealing groove, a seal is arranged and in an outer region of Be ⁇ fastening ring means for exercise an axial force of the mounting ring are arranged on the mounting plate, characterized in that the surface pressure caused by the means for exerting an axial force zwi ⁇ 's inner region and mounting plate is greater than one on this by pressurizing the pressure chamber s Spreading stress applied during operation.
- the inner tube is vor ⁇ preferably made of metal, the housing preferably made of plastic.
- the mutually facing surfaces are vor ⁇ preferably approximately cylindrical.
- the means for exerting an axial force of the fastening ring on the fastening device can be a flanging of the fastening plate around the fastening ring, but can alternatively or additionally also comprise (several) screws for fastening. attachment of the slave cylinder to a transmission housing. The screws preferably protrude by screwing eyes of the outer region of the fastening ring into threaded bores of the gear housing.
- the outer region preferably has a distance from the transmission housing, so that the Annpresskraft of the screws is introduced substantially only over the inner region of the mounting ring in the transmission housing.
- the outer region thus does not contact the slave cylinder, even when the slave cylinder is mounted on the transmission housing, so that the slave cylinder is supported on the transmission housing only in the inner region.
- the surface pressure of the adjacent surface is increased in the case of a contact force which is the same across the entire surface, and it is exerted in the critical region directly around the pressure chamber.
- a back surface of the housing facing the fastening plate is designed to be circumferentially undulating in the undeformed, non-assembled state.
- the back surface of the housing is the substantially radially extending support surface on the mounting plate. Seen in the axial direction, the course of the surface can be plane, an arbitrary radial section thus has a substantially line-shaped surface, but can also have different axial heights in the radial direction.
- the circulating shafts may additionally extend obliquely or spirally or the like in the radial direction.
- wave troughs are in the region of the attachment eyes and wave crests in areas between the attachment eyes.
- the surface pressure is thereby distributed more uniformly over the circumference in the screwed state.
- the wave-shaped formation corresponds approximately to a sinusoid.
- the sine curve preferably has an amplitude (measured as the distance between the wave crest and the wave trough of a straight envelope) of approximately 0.05 to 0.6 mm, preferably approximately 0.2 mm.
- a slave cylinder in particular for a hydraulic system of a motor vehicle, on a transmission housing
- the slave cylinder comprising a housing with an outer tube and a fastening ring and a guide sleeve with a cylindrical inner tube and Outer tube and cylindrical inner tube define a pressure chamber in which an annular piston can be arranged axially displaceable
- the guide sleeve comprises a mounting plate, which is arranged in the installed position of the slave cylinder between an inner region of the fastening ring and a transmission housing, wherein ren between the inne ⁇ A seal is arranged in the region and the fastening plate in a sealing groove, and in an outer region of the fastening ring, screw-on rings for receiving screws, with which the slave cylinder is fastened to the gear housing, are characterized in that that the outer region has a distance from the transmission housing, so that the Annpresskraft of the screws is introduced substantially only over the inner region of the mounting ring in
- Fig. 2 is an illustration of the mounting surface of the housing
- FIG. 3 shows a development of the housing along a circumferential cutting edge A-A in FIG. 1.
- Fig. 1 shows a partial section through a slave cylinder 1 of a hydraulic system of a motor vehicle, a so-called Centralized Servo Cylinder (abbreviated CSC).
- CSC Centralized Servo Cylinder
- This comprises a guide sleeve 2 which is arranged substantially ko ⁇ axially to a transmission input shaft, not shown here.
- the guide sleeve 2 is connected to a housing 3, wherein guide sleeve 2 and housing 3 include a pressure chamber 4, in which a not shown here Ring piston for actuation, for example, a release bearing affykupp ⁇ ment is movably arranged.
- the pressure chamber 4 is connected to a supply line of the hydraulic system, not shown here, so that it can be acted upon hydraulically with pressure, for example, a master cylinder.
- the housing 3 essentially comprises an outer tube 5, which limits the actual pressure chamber 4.
- the outer tube 5 merges into an essentially radially extending circumferential fastening ring 6, which comprises screw-on eyelets 7 for fastening the slave cylinder 1 by means of screws 9 to a gear housing 8 shown schematically here.
- a gear housing 8 shown schematically here.
- three An ⁇ screwing 7 are arranged distributed around the circumference of the housing 3, but here also two or four or more attachment eyes 7 may be provided.
- the guide sleeve 2 comprises a cylindrical inner tube 10, which merges into a substantially radially outwardly extending circumferential attachment plate 11. This in turn passes radially outward into a grooved ring 12, which engages in a circumferential annular groove 13 of the housing 3.
- slave cylinder 1 of the fastener plate 11 When mounted and attached to the gear housing 8 slave cylinder 1 of the fastener plate 11 is located between the gear housing 8 and the housing 3 of the CSC.
- a seal 15 is inserted in a circumferential sealing groove 14, for example in the form of an O-ring or a molded seal.
- the gear housing 8 facing surface of the housing 3 is now mentally in an inner region 16 which extends from the pressure chamber 4 to the circumferential annular groove 13, and in an outer region 17 which extends radially from the annular groove extends to the outside, split.
- the inner region 16 serves to seal the pressure chamber 4 to the outside
- the outer region 17 essentially serves only to receive the attachment eyes 7.
- the outer region 17 has a distance X from the transmission housing 8 in the mounted state. This has the consequence that by tightening the screws 9 only a pressing force substantially in the inner region 16 in the direction Rich ⁇ on the gear housing 8 is exercised.
- the outer region 17 thus does not rest on the transmission housing 8 even after the screws 9 have been tightened.
- the inner region 16 can be pressed against the fastening plate 11 and thus the gear housing 8 with a preload which produces a locally high surface pressure.
- spreading surface 18 Between the inner region 16 and the fastening plate 11 there is a so-called spreading surface 18, which essentially arises because hydraulic fluid is pressed into the gap between the housing 3 and the fastening plate 11 and pushes them apart, so that one in the axial direction counteracting the force exerted by means of the screws 9 pressing force acting force in this area acts. If the force exerted on the spreading surface 18 greater than the pressing force (ie locally the expansion stress as spreading force per area is greater than the entge ⁇ genzen surface pressure), so the pressure chamber 4 facing Be ⁇ rich dissolves the transition surface between the housing 3 and mounting plate eleventh slowly, so that the gap is further increased. If the gap becomes so large that the seal is only clamped with a small axial force or no axial force at all, the seal fails and hydraulic fluid emerges.
- the spreading force depends on the effective spreading surface 18 and the pressure in the pressure chamber 4.
- the supernatant X now makes it possible to tighten the screws 9 in such a way that in the area of the spreading surface 18 such a high surface pressure in the axial direction is effected on the transmission housing 8 that it is generally higher than that due to the pressure in the pressure chamber 4 in this area exerted pressure force. This results in no or only a small gap, so that the spreading surface 18 does not reach at least the seal 15.
- the attachment plate 11 may be crimped in the outer region 17 to the housing 3 of the CSC.
- the flanging can take place in such a way that the pressure force between housing 3 and mounting plate 11 shown above is generated solely by these.
- FIG. 2 shows a perspective view in FIG. 2.
- the shaft does not extend in the radial direction, but in the circumferential direction.
- Wave crests 19 are shown in FIG. 2 as a double line, wave troughs 20 as a simple line. Wave crests 19 and wave troughs 20 extend substantially radially, this being indicated by dashed auxiliary lines in radial extension.
- Fig. 3 therefore shows a development along the section AA in Fig.
- Fig. 3 plotted on the abscissa.
- Fig. 3 are also indicated as vertical dash-dotted lines the attachment eyes 7 ange ⁇ .
- A measured between wave crest and wave trough
- wave crests 19 being arranged between the attachment eyes 7 and Wellentä ⁇ ler 20 in the region of the attachment eyes 7.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0517053-2A BRPI0517053A (pt) | 2004-11-05 | 2005-10-15 | cilindro receptor |
EP05801565A EP1809920A1 (de) | 2004-11-05 | 2005-10-15 | Nehmerzylinder |
DE112005002564T DE112005002564A5 (de) | 2004-11-05 | 2005-10-15 | Nehmerzylinder |
JP2007539447A JP2008519214A (ja) | 2004-11-05 | 2005-10-15 | スレーブシリンダ |
US11/666,777 US20080116031A1 (en) | 2004-11-05 | 2005-10-15 | Slave Cylinder |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004053484.5 | 2004-11-05 | ||
DE102004053484 | 2004-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006047981A1 true WO2006047981A1 (de) | 2006-05-11 |
Family
ID=35520931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2005/001843 WO2006047981A1 (de) | 2004-11-05 | 2005-10-15 | Nehmerzylinder |
Country Status (8)
Country | Link |
---|---|
US (1) | US20080116031A1 (de) |
EP (1) | EP1809920A1 (de) |
JP (1) | JP2008519214A (de) |
KR (1) | KR20070073883A (de) |
CN (1) | CN101091072A (de) |
BR (1) | BRPI0517053A (de) |
DE (1) | DE112005002564A5 (de) |
WO (1) | WO2006047981A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013007231A1 (de) * | 2011-07-11 | 2013-01-17 | Schaeffler Technologies AG & Co. KG | Ausrückeinrichtung |
WO2019238157A1 (de) * | 2018-06-12 | 2019-12-19 | Schaeffler Technologies AG & Co. KG | Kraftfahrzeug-kupplungsnehmerzylinder mit einem stahlflansch und einem kunststoffumfassenden druckraumbegrenzungsteil sowie eine kraftfahrzeugkupplung |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010009037A1 (de) * | 2010-02-24 | 2011-08-25 | WABCO GmbH, 30453 | Einrichtung mit einem Ringzylinder und einem Ringkolben |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4313346A1 (de) | 1993-04-23 | 1994-10-27 | Fichtel & Sachs Ag | Hydraulisch betätigbares Ausrücksystem |
US5743370A (en) * | 1995-09-14 | 1998-04-28 | Valeo | Hydraulic clutch release bearing for a motor vehicle diaphragm clutch |
DE19755494A1 (de) * | 1997-12-13 | 1999-06-17 | Schaeffler Waelzlager Ohg | Montagehilfe und Haltesicherung der Befestigungsschrauben für eine hydraulische Ausrückvorrichtung |
DE10228051A1 (de) * | 2001-06-28 | 2003-02-06 | Luk Lamellen & Kupplungsbau | Ausrücksystem |
DE10222730A1 (de) | 2002-05-23 | 2003-12-11 | Fte Automotive Gmbh | Vorrichtung zum wahlweise Aus-bzw. Einrücken einer Reibkupplung für Kraftfahrzeuge |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2738886B1 (fr) * | 1995-09-14 | 1997-10-24 | Valeo | Dispositif de debrayage a commande hydraulique pour embrayage, notamment pour vehicules automobiles |
DE19742468A1 (de) * | 1997-09-26 | 1999-04-01 | Schaeffler Waelzlager Ohg | Nehmerzylindergehäuse aus Kunststoff, in das eine Führungshülse aus Stahl eingesetzt ist |
DE19754702A1 (de) * | 1997-12-10 | 1999-06-17 | Schaeffler Waelzlager Ohg | Winkelarmatur für eine Druckleitung einer hydraulischen Kupplungsbetätigung |
DE19981050B4 (de) * | 1998-06-10 | 2009-04-09 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Führungshülse für einen Nehmerzylinder |
WO2001014758A2 (de) * | 1999-08-24 | 2001-03-01 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Ausrücksystem |
-
2005
- 2005-10-15 KR KR1020077010219A patent/KR20070073883A/ko not_active Application Discontinuation
- 2005-10-15 CN CNA2005800376714A patent/CN101091072A/zh active Pending
- 2005-10-15 DE DE112005002564T patent/DE112005002564A5/de not_active Ceased
- 2005-10-15 EP EP05801565A patent/EP1809920A1/de not_active Withdrawn
- 2005-10-15 US US11/666,777 patent/US20080116031A1/en not_active Abandoned
- 2005-10-15 JP JP2007539447A patent/JP2008519214A/ja not_active Withdrawn
- 2005-10-15 BR BRPI0517053-2A patent/BRPI0517053A/pt not_active IP Right Cessation
- 2005-10-15 WO PCT/DE2005/001843 patent/WO2006047981A1/de active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4313346A1 (de) | 1993-04-23 | 1994-10-27 | Fichtel & Sachs Ag | Hydraulisch betätigbares Ausrücksystem |
US5743370A (en) * | 1995-09-14 | 1998-04-28 | Valeo | Hydraulic clutch release bearing for a motor vehicle diaphragm clutch |
DE19755494A1 (de) * | 1997-12-13 | 1999-06-17 | Schaeffler Waelzlager Ohg | Montagehilfe und Haltesicherung der Befestigungsschrauben für eine hydraulische Ausrückvorrichtung |
DE10228051A1 (de) * | 2001-06-28 | 2003-02-06 | Luk Lamellen & Kupplungsbau | Ausrücksystem |
DE10222730A1 (de) | 2002-05-23 | 2003-12-11 | Fte Automotive Gmbh | Vorrichtung zum wahlweise Aus-bzw. Einrücken einer Reibkupplung für Kraftfahrzeuge |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013007231A1 (de) * | 2011-07-11 | 2013-01-17 | Schaeffler Technologies AG & Co. KG | Ausrückeinrichtung |
US9200683B2 (en) | 2011-07-11 | 2015-12-01 | Schaeffler Technologies AG & Co. KG | Release device |
WO2019238157A1 (de) * | 2018-06-12 | 2019-12-19 | Schaeffler Technologies AG & Co. KG | Kraftfahrzeug-kupplungsnehmerzylinder mit einem stahlflansch und einem kunststoffumfassenden druckraumbegrenzungsteil sowie eine kraftfahrzeugkupplung |
Also Published As
Publication number | Publication date |
---|---|
DE112005002564A5 (de) | 2007-08-09 |
JP2008519214A (ja) | 2008-06-05 |
BRPI0517053A (pt) | 2008-09-30 |
EP1809920A1 (de) | 2007-07-25 |
US20080116031A1 (en) | 2008-05-22 |
KR20070073883A (ko) | 2007-07-10 |
CN101091072A (zh) | 2007-12-19 |
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