GB2116282A - Hydraulically actuatable rolling bearing friction clutch release device - Google Patents

Hydraulically actuatable rolling bearing friction clutch release device Download PDF

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Publication number
GB2116282A
GB2116282A GB08303793A GB8303793A GB2116282A GB 2116282 A GB2116282 A GB 2116282A GB 08303793 A GB08303793 A GB 08303793A GB 8303793 A GB8303793 A GB 8303793A GB 2116282 A GB2116282 A GB 2116282A
Authority
GB
United Kingdom
Prior art keywords
sealing bead
relation
rolling
seals
rests
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.)
Granted
Application number
GB08303793A
Other versions
GB8303793D0 (en
GB2116282B (en
Inventor
Bernhard Limbacher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
Fichtel and Sachs AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fichtel and Sachs AG filed Critical Fichtel and Sachs AG
Publication of GB8303793D0 publication Critical patent/GB8303793D0/en
Publication of GB2116282A publication Critical patent/GB2116282A/en
Application granted granted Critical
Publication of GB2116282B publication Critical patent/GB2116282B/en
Expired legal-status Critical Current

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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
    • F16D25/04—Fluid-actuated clutches in which the fluid actuates an elastic clutching, i.e. elastic actuating member, e.g. a diaphragm or a pneumatic tube
    • F16D25/048—Fluid-actuated clutches in which the fluid actuates an elastic clutching, i.e. elastic actuating member, e.g. a diaphragm or a pneumatic tube the elastic actuating member not rotating with a coupling part
    • 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
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/06—Bellows pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Diaphragms And Bellows (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Mechanical Operated Clutches (AREA)
  • Sealing Devices (AREA)

Abstract

A hydraulically actuatable rolling bearing friction clutch release device has a rolling bellows element which consists of two concentric parts (5, 8), of which the outer part (5) rests by its external diameter with an external sealing bead (6) upon a housing part (1) and seals in relation thereto and rests by its internal diameter with an inner sealing bead (7) on a bearing support part (4) and seals in relation thereto and the inner part (8) rests by its external diameter with an outer sealing bead (9) on the support part (4) and seals in relation thereto, with a diameter smaller than the inner sealing bead (7) of the outer part (5), and by its internal diameter rests with an inner sealing bead (10) again on the housing part (1) and seals in relation thereto, the two sealing beads (7, 9), lying radially opposite to one another at a short distance, of the two rolling bellows parts (5, 8) being held by an annular washer (12) on the support part (4). <IMAGE>

Description

SPECIFICATION Hydraulically actuatable rolling bearing friction clutch release device The invention relates to a hydraulically actuatable rolling bearing releaser device for friction clutches which is arranged concentrically with the gear shaft, consisting inter alia of a housing part with hydraulic connection secured to the clutch or gear housing, a pressure chamber formed from the housing part on the one part and a rolling bellows element on the other, the rolling bellows element acting through a support part upon the release bearing for the actuation of the friction clutch.
A hydraulically actuatable rolling bearing releaser for friction clutches is known by way of example from German Pub. Sp. 2,923,487. In this known construction the pressure chamber is formed firstly from a housing part firmly connected with the gear housing, and from a rolling bellows element which transmits the release movement to the release bearing and carries out this movement in an annularcylindrical chamber with appropriate rolling movements of the elastic material of the rolling bellows element. In the known rolling bellows element a great difference is to be noted between its internal diameter and its external diameter.
Therefore it csn be produced only as a round annular part and its production is thus relatively expensive.
It is an object of the.present invention to form a rolling bellows element for a hydraulically actuatable rolling bearing releaser to that it can be produced easily and at favourable price.
According to the invention there is provided a hydraulically actuatable rolling bearing releaser for friction clutches, which is arranged concentrically with the gear shaft, consisting inter alia of a housing part with hydraulic connection secured to the clutch or gear housing, and a pressure chamber formed from the housing part on the one hand and a rolling bellows element on the other, the rolling bellows element acting through a support part upon the rolling bearing for the actuation of the friction clutch, characterised in that the rolling bellows element consists of two concentric parts, the outer part rests by its external diameter with an external sealing bead upon the housing part and seals in relation thereto and rests by its internal diameter with an inner sealing bead on the support part and seals in relation thereto and the inner part rests by its external diameter with an outer sealing bead on the support part and seals in relation thereto-with a diameter smaller than the inner sealing bead of the outer part-and by its internal diameter rests with an inner sealing bead again on the housing part and seals in relation thereto, the two sealing beads lying radially opposite to one another at a short distance, of the two rolling bellows parts being held by an annular washer on the support part.
By the division of the one rolling bellows element into two concentric parts it is possible to produce each of these two parts in the form of a flexible tube, since after the fitting of this two-part rolling bellows element each individual part displays only slight differences of diameter from the original production form as flexible tube. The production of the two concentric parts of the rolling bellows element each from a flexible tube-with different diameters-is considerably more favourable in price than the one-piece production of a substantially flat structure with large external diameter and with the movement zone arranged concentrically in the middle region.
The arrangement of the two rolling bellows element parts may be made so that their supporting in relation to the support takes place by means of an annular washer the fastening elements of which penetrate the relatively narrow radial interspace between the two rolling bellows element parts on the support part.
The invention will be explained in greater detail below by reference to an example of embodiment.
In the drawing there is illustrated a hydraulically actuatable rolling bearing releaser which is ordinarily arranged between the friction clutch (not shown) and a gear box, namely concentrically with a gear shaft. The releaser consists of a housing part 1 which is secured to the gear box (not shown). The housing part 1 has a hydraulic connection 2 which serves for connection to a hydraulic clutch-actuation system. The housing part 1 encloses partially a pressure chamber 3 which is defined in the direction towards the friction clutch by a rolling bellows elements 5, 8 which is of two-part formation, namely with an outer part 5 and an inner part 8 which are arranged substantially concentrically with one another.The outer part 5 of the rolling bellows element is held and sealed with its outer sealing bead 6 by a sheet-metal ring 1 9 on the housing part 1, while the inner sealing bead 7 of the outer part 5 of the rolling bellows elements is clamped to the support part 4 and sealed in relation thereto. The inner part 8 of the rolling bellows element is arranged concentrically with the outer part 5 with a smaller mean diameter and its outer sealing bead 9 is likewise supported on the support part 4 and sealed in relation thereto, namely on a smaller mean diameter than the inner sealing bead 7 of the outer part 5 of the rolling bellows element.For the securing of the two sealing beads 7 and 9 an annular washer 12 is provided which clamps the two sealing beads 7 and 9, from the pressure chamber 3, upon the support part 4, namely by a plurality of splined pins 11 or screws distributed on the circumference, which are anchored in the support part 4 in the diametrical zone left free between the sealing beads 7 and 9. The inner sealing bead 10 of the inner part 8 of the rolling bellows elements is again clamped to the housing part 1 and sealed, namely by the sliding sleeve 14, which has a constricted zone 20 with a smaller diameter and is crimped to the housing part 1. The support part 4 in a manner not to be described further guides the non-rotating outer race ring 17 of the releaser bearing 15, the rotating inner race ring 1 6 of which acts upon the release elements of the friction clutch (not shown).In the region of its internal diameter the support part 4 has a foot 13 which is axially displaceably guided on the external circumference of the sliding sleeve 14. This guidance guarantees that the two rolling bellows element parts 5 and 8 and the releaser bearing 1 5 always carry out an exactly rectilinear movement during clutch actuation. Furthermore in the illustration a spring 18 is provided which bears upon the housing part 1 on the one part and the support part 4 on the other. This spring 18 serves to load the releaser bearing 1 5 with a slight predetermined initial load for the permanent application of the inner race ring 1 6 to the release parts of the friction clutch.
The function of the hydraulically actuatable rolling bearing reieaser is as follows:- The pressure medium situated in the pressure chamber 3 is charged, for the release of the clutch, with a pressure through the hydraulic connection 2. This causes a resultant force upon the two parts of the rolling bellows element 5, 8 and upon the support part 4 in the direction of the arrow A. The releaser bearing 15, which bears through its outer race ring 17 upon the support part 4, is moved by this force in the direction of the arrow A and through its inner race ring 16 actuates the release parts of the clutch.On reduction of pressure in the pressure chamber 3, due to the force of the main clutch spring (not shown) effecting the engagement of the clutch a return movement takes place of the releaser bearing 15 with the support part 4, contrarily of the direction of the arrow A and thus in the direction of engagement of the friction clutch.
Each of the two parts 5 and 8 of the rolling bellows element is produced as a cylindrical tube part with different diameters, namely the outer part 5 with a larger diameter than the inner part 8, whereby the production is substantially simplified.
Then in the installed condition it is merely necessary for the inner sealing bead 7 to have a slightly smaller diameter than the outer sealing bead 6 and the inner sealing bead 10 to have a slightly smaller diameter than the outer sealing bead 9. The fastening to the support part 4 is here effected in that the inner sealing bead 7 of the outer part 5 has a somewhat larger diameter than the outer sealing bead 9 of the inner part 8, so that the fastening elements-splined pin 1 1-- of the annular washer 12 can be fitted between the two sealing beads 7 and 9.

Claims (3)

Claims
1. Hydraulically actuatable rolling bearing releaser for friction clutches, which is arranged concentrically with the gear shaft, consisting inter alia of a housing part with hydraulic connection secured to the clutch or gear housing, and a pressure chamber formed from the housing part on the one hand and a rolling bellows element on the other, the rolling bellows element acting through a support part upon the rolling bearing for the actuation of the friction clutch, characterised in that the rolling bellows elements consists of two concentric parts (5, 8), the outer part (5) rests by its external diameter with an external sealing bead (6) upon the housing part (1) and seals in relation thereto and rests by its internal diameter with an inner sealing bead (7) on the support part (4) and seals in relation thereto and the inner part (8) rests by its external diameter with an outer sealing bead (9) on the support part (4) and seals in relation thereto-with a diameter smaller than the inner sealing bead (7) of the outer part (5)and by its internal diameter rests with an inner sealing bead (10) again on the housing part (1) and seals in relation thereto, the two sealing beads (7, 9), lying radially opposite to one another at a short distance, of the two rolling bellows parts (5, 8) being held by an annular washer (12) on the support part (4).
2. Rolling tearing releaser according to Claim 1, characterised in that the annular washer (12) is secured with screws or splined pins (11) in the support part (4) and these fastening elements penetrate the annular space between the sealing beads (7, 9) of the two parts (5, 8) of the rolling bellows element.
3. Hydraulically actuatable rolling bearing releaser for friction clutches substantially as herein described with reference to the accompanying drawing.
GB08303793A 1982-02-26 1983-02-11 Hydraulically actuatable rolling bearing friction clutch release device Expired GB2116282B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823206873 DE3206873A1 (en) 1982-02-26 1982-02-26 HYDRAULICALLY OPERABLE ROLLER BEARING RELEASE

Publications (3)

Publication Number Publication Date
GB8303793D0 GB8303793D0 (en) 1983-03-16
GB2116282A true GB2116282A (en) 1983-09-21
GB2116282B GB2116282B (en) 1985-06-26

Family

ID=6156722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08303793A Expired GB2116282B (en) 1982-02-26 1983-02-11 Hydraulically actuatable rolling bearing friction clutch release device

Country Status (4)

Country Link
JP (1) JPS58156729A (en)
DE (1) DE3206873A1 (en)
FR (1) FR2522374B1 (en)
GB (1) GB2116282B (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0119784A1 (en) * 1983-03-21 1984-09-26 Automotive Products Public Limited Company An actuator for a motor vehicle clutch control mechanism
EP0177212A1 (en) * 1984-09-20 1986-04-09 Automotive Products Public Limited Company An actuator for a motor vehicle clutch
EP0230106A2 (en) * 1985-12-13 1987-07-29 General Motors Corporation Fluid-operated piston
WO1988003235A1 (en) * 1986-10-22 1988-05-05 Allied Corporation Hydraulic clutch activation system
WO1990004116A1 (en) * 1988-10-13 1990-04-19 Automotive Products Plc Hydraulic clutch actuator
FR2757590A1 (en) * 1996-12-23 1998-06-26 Valeo Hydraulic clutch control receiver, especially for motor vehicle
WO1998028552A1 (en) * 1996-12-23 1998-07-02 Valeo Hydraulic control receiver with closing plate
WO1998039575A3 (en) * 1997-03-06 1998-11-12 Horton Inc Rotational control apparatus with selective fluid actuation supply
FR2772443A1 (en) * 1997-12-11 1999-06-18 Valeo HYDRAULIC CLUTCH CONTROL RECEIVER IN PARTICULAR FOR A MOTOR VEHICLE
GB2339256A (en) * 1998-07-08 2000-01-19 Automotive Prod France A concentric actuator with a flexible member inside working chamber
US6415900B1 (en) 1996-12-23 2002-07-09 Valeo Hydraulic control receiver with closing plate
WO2008049626A1 (en) * 2006-10-27 2008-05-02 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Clutch actuation apparatus for actuating a clutch
WO2011058005A1 (en) * 2009-11-11 2011-05-19 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Clutch actuator controlled by a pressure medium for a compressor clutch of a commercial vehicle

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4100950C2 (en) * 1991-01-15 1998-10-15 Fte Automotive Gmbh Hydraulic clutch actuator
DE4243170C2 (en) * 1992-12-19 1997-06-12 Daimler Benz Ag Release device for a vehicle clutch
DE10051374A1 (en) * 2000-10-17 2002-04-18 Zahnradfabrik Friedrichshafen Operating device for a clutch for a car with an automatic gearbox comprises a low pressure actuator arranged concentrically in a chamber in the clutch bell on the gearbox to adjust a pressure plate of the clutch
JP2008144361A (en) * 2006-12-06 2008-06-26 Furutochi Kensetsu:Kk Water management device of dam
DE102017218512A1 (en) 2017-10-17 2019-04-18 Zf Friedrichshafen Ag Actuator with dirt shield

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE330412C (en) * 1920-12-14 Hans Keitel Dipl Ing Pneumatic coupling
NL7210087A (en) * 1972-07-21 1974-01-23
DE2923487A1 (en) * 1979-06-09 1980-12-11 Fichtel & Sachs Ag Clutch slave cylinder sealing device - has ring-shaped pressure chamber with damped seal and attached thrust rods
DE3043861A1 (en) * 1980-11-21 1982-08-19 Fichtel & Sachs Ag, 8720 Schweinfurt Hydraulic or pneumatic clutch disengager - has bearing ring and ring membrane coaxial with drive shaft and having external coil return spring
DE3130514A1 (en) * 1981-08-01 1983-02-17 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt HYDRAULIC UNIT FOR MOTOR VEHICLE CLUTCHES

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0119784A1 (en) * 1983-03-21 1984-09-26 Automotive Products Public Limited Company An actuator for a motor vehicle clutch control mechanism
EP0177212A1 (en) * 1984-09-20 1986-04-09 Automotive Products Public Limited Company An actuator for a motor vehicle clutch
EP0230106A2 (en) * 1985-12-13 1987-07-29 General Motors Corporation Fluid-operated piston
EP0230106A3 (en) * 1985-12-13 1987-09-02 General Motors Corporation Fluid-operated piston
WO1988003235A1 (en) * 1986-10-22 1988-05-05 Allied Corporation Hydraulic clutch activation system
US4779713A (en) * 1986-10-22 1988-10-25 Allied Corporation Hydraulic clutch activation system
WO1990004116A1 (en) * 1988-10-13 1990-04-19 Automotive Products Plc Hydraulic clutch actuator
GB2241762A (en) * 1988-10-13 1991-09-11 Automotive Products Plc Hydraulic clutch actuator
GB2241762B (en) * 1988-10-13 1992-06-10 Automotive Products Plc Hydraulic clutch actuator
WO1998028552A1 (en) * 1996-12-23 1998-07-02 Valeo Hydraulic control receiver with closing plate
FR2757590A1 (en) * 1996-12-23 1998-06-26 Valeo Hydraulic clutch control receiver, especially for motor vehicle
US6415900B1 (en) 1996-12-23 2002-07-09 Valeo Hydraulic control receiver with closing plate
WO1998039575A3 (en) * 1997-03-06 1998-11-12 Horton Inc Rotational control apparatus with selective fluid actuation supply
FR2772443A1 (en) * 1997-12-11 1999-06-18 Valeo HYDRAULIC CLUTCH CONTROL RECEIVER IN PARTICULAR FOR A MOTOR VEHICLE
GB2339256A (en) * 1998-07-08 2000-01-19 Automotive Prod France A concentric actuator with a flexible member inside working chamber
GB2339256B (en) * 1998-07-08 2002-12-04 Automotive Prod France Actuators
WO2008049626A1 (en) * 2006-10-27 2008-05-02 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Clutch actuation apparatus for actuating a clutch
WO2011058005A1 (en) * 2009-11-11 2011-05-19 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Clutch actuator controlled by a pressure medium for a compressor clutch of a commercial vehicle
CN102667210A (en) * 2009-11-11 2012-09-12 克诺尔商用车制动系统有限公司 Clutch actuator controlled by a pressure medium for a compressor clutch of a commercial vehicle
US8807314B2 (en) 2009-11-11 2014-08-19 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Clutch actuator controlled by a pressure medium for a compressor clutch of a commercial vehicle
CN102667210B (en) * 2009-11-11 2015-05-27 克诺尔商用车制动系统有限公司 Clutch actuator controlled by a pressure medium for a compressor clutch of a commercial vehicle

Also Published As

Publication number Publication date
GB8303793D0 (en) 1983-03-16
FR2522374A1 (en) 1983-09-02
DE3206873A1 (en) 1983-09-15
DE3206873C2 (en) 1990-08-02
JPS58156729A (en) 1983-09-17
GB2116282B (en) 1985-06-26
JPH0350139B2 (en) 1991-07-31
FR2522374B1 (en) 1985-11-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee