WO2000001962A1 - Appareil d'accouplement hydrocinetique a embrayage de verrouillage - Google Patents
Appareil d'accouplement hydrocinetique a embrayage de verrouillage Download PDFInfo
- Publication number
- WO2000001962A1 WO2000001962A1 PCT/FR1999/001699 FR9901699W WO0001962A1 WO 2000001962 A1 WO2000001962 A1 WO 2000001962A1 FR 9901699 W FR9901699 W FR 9901699W WO 0001962 A1 WO0001962 A1 WO 0001962A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- turbine wheel
- housings
- driven shaft
- disc
- moldable material
- 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
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
-
- 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
- F16H—GEARING
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
- F16H41/24—Details
- F16H41/28—Details with respect to manufacture, e.g. blade attachment
-
- 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
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
- F16H2045/0278—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch comprising only two co-acting friction surfaces
-
- 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
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
- F16H2045/0294—Single disk type lock-up clutch, i.e. using a single disc engaged between friction members
Definitions
- the present invention relates to a hydrokinetic coupling device with locking clutch. It relates in particular to a hydrokinetic coupling device comprising a turbine wheel which can be made integral with a driven shaft and housed in an impeller wheel casing with which it can cooperate, for the hydrokinetic transmission of a torque to said driven shaft , from a drive shaft which can be made integral with said impeller, this apparatus further comprising a " disc clutch device, called a clutch clutch, suitable for determining the locking or unlocking of a coupling elastic between said turbine wheel and a radial wall of said casing.
- This coupling is effected by means of a set of helical damping springs with circumferential action held in place in arcuate housings integral with said turbine wheel and opening in an axial direction towards said radial wall.
- a set of helical damping springs with circumferential action held in place in arcuate housings integral with said turbine wheel and opening in an axial direction towards said radial wall.
- the helical damping springs are held in annular housings in the form of toric sectors which constitute the curved peripheral edge of a sheet metal disc riveted on the turbine wheel, which implies a relatively complicated manufacturing (folding sheet metal, drilling, etc.).
- a hydrokinetic coupling device of the type mentioned at the beginning is characterized in that said housings arcuate are formed directly in the thickened peripheral part of a turbine wheel made of moldable material, the opposite radial ends of said housings serving as supports for the corresponding ends of said springs.
- This moldable material may for example be synthetic material or aluminum.
- the turbine wheel can be made entirely of molded material, including its connection hub to said driven shaft.
- the turbine wheel is then entirely molded with the hub and in this case, to avoid matting of the aluminum or of the synthetic material, said hub advantageously comprises a metal insert in which grooves are made for the connection in rotation with the driven shaft.
- said moldable material is overmolded on a central metal disc for connection to said driven shaft.
- housings each consist entirely of a metal insert, the moldable material of the turbine wheel being overmolded on the inserts.
- FIG. 1 is a half-view in partial axial section showing the clutch device and the turbine wheel of a hydrokinetic coupling device according to the invention, the connection between the clutch disc and the ends of the helical springs carried out by an intermediate disc;
- FIG. 2 is an exploded perspective view showing on the one hand the disk bearing linings of the clutch device, provided with coupling springs, and on the other hand .the turbine wheel provided with its housings;
- FIG. 3 shows the same assembly as in Figure 2, seen from the front;
- FIG. 4 is a view similar to that of Figure 1, showing a simplified variant of the clutch device;
- FIG. 5 is a partial view in axial section showing the embodiment of the arched housings entirely in the form of metal inserts.
- the impeller of the paddle wheel has been generally referenced at 1
- the radial wall of the casing 2 secured to the impeller wheel has been generally referenced at 2a.
- This radial wall 2a is extended axially at 2b to be connected, for example by a peripheral weld joint, to a complementary part (not shown) forming the impeller of impellers, the assembly being able to be wedged on a driving shaft, for example the crankshaft of an internal combustion engine.
- the reactor wheel involved in the so-called “conversion" phase, when the turbine wheel is speeding up, has also not been shown in the drawing, not being involved in understanding the invention , and its operating principle being known for example from the aforementioned document WO 93/1339 to which refer for further details the turbine wheel, impeller wheel, reactor wheel constituting a coupling device.
- the device only comprises a turbine wheel and an impeller wheel.
- a clutch device extends radially between the turbine wheel 1 and the radial wall 2a of the casing 2 of the impeller wheel, in order to be able to secure in rotation or bridging the latter and the turbine wheel 1, and thus avoid any sliding between them, by "bypassing" the hydrokinetic coupling, when the setting in speed of the turbine wheel 1, coupled to the driven shaft, namely the shaft transmission input, is complete.
- This clutch device comprises for this purpose, for example, and in the embodiment of FIG. 1, a clutch disc with a piston function 5 having a central ring 6 by means of which it can slide axially and sealingly (annular seal 7) on a ring-shaped part 8 of the centering shaft 4.
- a blind space 9 which can be supplied with fluid under pressure and which communicates by passages 10 of the shaft 4 with a chamber 11 formed between the disc 5 and the radial wall 2a.
- the reference 12 designates lugs of the ring 8 having a cylindrical outer surface for guiding the ferrule 6 of the disc 5, but letting the pressurized fluid pass between the space 9 and the chamber 11.
- ie disc 5 is secured in rotation to the radial wall 2a of the casing 2 of the impeller, this so as to allow relative axial movements between these two elements.
- This coupling can be achieved by any suitable means, for example by means of elastic tongues 13 riveted at 14 on the wall 2a and fixed moreover to bosses 15 of the disc 5 by any clamping system 16, this so as to exert an axial traction on this disc, in the direction of the radial wall 2a.
- a device of this type is described for example in French patent n ° 94 13205 of November 4, 1994 in the name of the applicant.
- the clutch device also comprises an intermediate disc 17 carrying, on its two faces, friction linings referenced at 18 (see also Figures 2 and 3).
- This disc 17 has, as an extension of its outer edge, and angularly equally distributed along its periphery, on the one hand hooks folded at right angles 19 each carrying two ears 20 with circumferential extension laterally, and on the other hand legs holding 21 bent in the same direction as the previous ones, that is to say towards the turbine wheel, but at an obtuse angle.
- this intermediate disc 17 serves at the same time as a disc carrying helical damping springs 22: the opposite ends of each spring are engaged each time in the ears 20 directed towards each other by two legs 19 neighbors, while the central part of the spring 22 considered is held by the lug 21 located at an equal distance from the lugs 19.
- each spring 22 is held both in the circumferential direction and in the axial direction with respect to the forces which would tend away from the turbine wheel 1.
- the springs 22 must moreover be wedged, by their ends as well as radially, in arcuate recesses of corresponding shape of the turbine wheel 1.
- the turbine wheel 1 is made of aluminum or advantageously of synthetic material possibly reinforced with resistant fibers (glass, carbon, "evlar”, etc.), and is molded in this example on a metal disc central 23 for connection to the driven shaft (not shown), arcuate housings 24 for the springs being reserved, during molding, in a peripheral excess thickness 25 of the wheel 1.
- the opposite radial ends 26, 26a of the housings 24 consist of metal supports avoiding the incrustation of the ends of the springs 22 in the molded material of the wheel 1. These metal supports are put in place in the mold so that the synthetic or other material is overmolded on them, which also contributes to simplifying the manufacture. It is also possible to avoid incrustation of the external wall of the arched housings 24 under the effect of the centrifugal force of the springs 22 by providing other overmolded metal supports 28 at this location (see FIG. 1).
- the shield 29, forming the inner torus of the turbine wheel 1 can also be made of aluminum or a synthetic material bonded, overmolded or welded to the blades 30.
- the operation of the device d coupling which has just been described is the same as that of conventional apparatuses and is therefore recalled here only for the record: in the start-up phase, the pressure of the hydraulic fluid in the chamber 11 is such that it maintains the disc d clutch 5 spaced from the radial wall 2a, so that the linings 18 of the disc - intermediate 17, spaced from the wall 2a, are not rotated, notwithstanding the (permanent) rotation of the disc 5.
- the torque of the wheel impeller is therefore transmitted to the turbine wheel 1, with sliding, only by drokinetic h effect in the device (conversion phase).
- the springs 22 are inactive and the clutch device is then disengaged or removed.
- the springs 22 suddenly avoid torque, since they can each be compressed between a radial end wall 26 of the housings 24 and the corresponding folded tab 19 of the intermediate disc (as can be seen in Figures 1 and 2 , the walls 26 have a central notch 26a for the passage of the legs 19).
- the variant of the embodiment of FIG. 4 relates only to the clutch device and will therefore only be briefly described.
- the intermediate disc 17 has been deleted here, its function being assumed directly by the clutch disc 5 ′, which carries the friction lining 18 ′ capable of coming into contact with the internal face of the radial wall 2 ′ a of the impeller wheel housing 2 ′.
- the disc 5 ' is therefore rotated only when' a drop in the pressure of the hydraulic fluid in the chamber 11 ', by friction of its lining 18' on the radial wall 2 ' ⁇ .
- This disc 5 ′ is provided at its periphery with folded lugs 19 ′ and 21 ′ similar to the lugs 19 and 21 of the intermediate disc 17 of the preceding embodiment, may thus cause the wheel dt_ turbine 1 to rotate by means of the springs 22 , like before.
- Lis arched housings 24 could be in all points similar to this: of the embodiment of FIGS. 1 to 3.
- the presence of the inner torus 29 is not essential.
- the turbine wheel 1 includes a thickened outer torus to form, according to the invention, the arcuate housings.
- the blades 30 have come from molding with this outer toroid so that the presence of the inner toroid is not essential.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/508,003 US6378676B1 (en) | 1998-07-07 | 1999-07-07 | Hydrokinetic coupling apparatus for locking engagement |
JP2000558323A JP4416324B2 (ja) | 1998-07-07 | 1999-07-07 | ロッキング係合するための液圧結合装置 |
KR1020007002277A KR100613538B1 (ko) | 1998-07-07 | 1999-07-07 | 유체 동역학적 커플링 장치 |
HU0004591A HU221936B1 (hu) | 1998-07-07 | 1999-07-07 | Hidrokinetikus tengelykapcsoló készülék |
DE19981454T DE19981454B4 (de) | 1998-07-07 | 1999-07-07 | Hydrodynamischer Momentwandler mit verriegelbarer Kupplung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9808674A FR2781545B1 (fr) | 1998-07-07 | 1998-07-07 | Convertisseur de couple hydrocinetique a embrayage de verrouillage |
FR98/08674 | 1998-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000001962A1 true WO2000001962A1 (fr) | 2000-01-13 |
Family
ID=9528349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1999/001699 WO2000001962A1 (fr) | 1998-07-07 | 1999-07-07 | Appareil d'accouplement hydrocinetique a embrayage de verrouillage |
Country Status (7)
Country | Link |
---|---|
US (1) | US6378676B1 (fr) |
JP (1) | JP4416324B2 (fr) |
KR (1) | KR100613538B1 (fr) |
DE (1) | DE19981454B4 (fr) |
FR (1) | FR2781545B1 (fr) |
HU (1) | HU221936B1 (fr) |
WO (1) | WO2000001962A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002044589A1 (fr) * | 2000-11-29 | 2002-06-06 | Thyssenkrupp Automotive Ag | Convertisseur de couple hydrodynamique |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2811048B1 (fr) * | 2000-06-29 | 2002-10-25 | Valeo | Appareil d'accouplement hydrocinetique, notamment pour vehicule automobile, comportant une butee a aiguilles entre le piston et le moyeu de turbine |
JP3844708B2 (ja) * | 2002-03-15 | 2006-11-15 | 株式会社エクセディ | ピストン連結機構及びそれを備えた流体式トルク伝達装置のロックアップ装置 |
JP3915566B2 (ja) * | 2002-03-25 | 2007-05-16 | アイシン精機株式会社 | トルクコンバータ |
JP2008157293A (ja) * | 2006-12-21 | 2008-07-10 | Valeo Unisia Transmission Kk | 流体式トルク伝達装置 |
DE102008048028A1 (de) * | 2007-10-15 | 2009-04-16 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Drehmomentübertragungseinrichtung |
US9010507B2 (en) * | 2012-03-06 | 2015-04-21 | Schaeffler Technologies AG & Co. KG | Torque converter with a clutch centering feature |
US10274066B2 (en) | 2016-02-23 | 2019-04-30 | Valeo Embrayages | Turbine assembly for hydrokinetic torque converter, and method for making the same |
US10267397B2 (en) | 2016-02-23 | 2019-04-23 | Valeo Embrayages | Turbine assembly for hydrokinetic torque converter, and method for making the same |
DE102016209210A1 (de) * | 2016-05-27 | 2017-12-14 | Schaeffler Technologies AG & Co. KG | Hydrodynamischer Drehmomentwandler |
US10428924B2 (en) | 2016-11-17 | 2019-10-01 | Valeo Embrayages | Turbine assembly for hydrokinetic torque converter, and method for making the same |
US10865864B2 (en) | 2017-03-28 | 2020-12-15 | Valeo Embrayages | Turbine assembly, hydrokinetic torque converter, and methods for making the same |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4123905A (en) * | 1977-05-27 | 1978-11-07 | Borg-Warner Corporation | Torque converter assembly |
FR2616184A1 (fr) * | 1987-06-02 | 1988-12-09 | Valeo | Embrayage, notamment pour vehicule automobile |
FR2634849A1 (fr) * | 1988-07-08 | 1990-02-02 | Fichtel & Sachs Ag | Embrayage hydrodynamique |
FR2674306A1 (fr) * | 1991-03-22 | 1992-09-25 | Valeo | Embrayage de verrouillage pour appareil d'accouplement hydrocinetique, notamment pour vehicule automobile. |
WO1993013339A1 (fr) | 1991-12-23 | 1993-07-08 | Ford Motor Company Limited | Accouplement de derivation a friction pour convertisseur de couple hydrocinetique |
FR2724434A1 (fr) * | 1994-09-09 | 1996-03-15 | Valeo | Volant amortisseur, notamment pour vehicule automobile |
US5507622A (en) * | 1995-01-11 | 1996-04-16 | Ford Motor Company | Plastic molded torque converter turbine |
FR2726620A1 (fr) | 1994-11-04 | 1996-05-10 | Valeo | Procede de montage d'un embrayage de verrouillage pour accouplement hydrocinetique, notamment pour vehicule automobile, embrayage de verrouillage et accouplement hydrocinetique le comportant |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5465575A (en) * | 1994-09-14 | 1995-11-14 | Nelson Metal Products Corporation | Torque converter and method for producing the same |
US5720595A (en) * | 1996-08-05 | 1998-02-24 | Ford Global Technologies, Inc. | Composite wheel and metal hub for a torque converter or fluid coupling |
DE19754652A1 (de) * | 1997-12-09 | 1999-06-17 | Mannesmann Sachs Ag | Drehmomentwandler |
DE19754650A1 (de) * | 1997-12-09 | 1999-06-17 | Mannesmann Sachs Ag | Drehmomentwandler |
-
1998
- 1998-07-07 FR FR9808674A patent/FR2781545B1/fr not_active Expired - Lifetime
-
1999
- 1999-07-07 DE DE19981454T patent/DE19981454B4/de not_active Expired - Fee Related
- 1999-07-07 JP JP2000558323A patent/JP4416324B2/ja not_active Expired - Fee Related
- 1999-07-07 HU HU0004591A patent/HU221936B1/hu not_active IP Right Cessation
- 1999-07-07 US US09/508,003 patent/US6378676B1/en not_active Expired - Lifetime
- 1999-07-07 WO PCT/FR1999/001699 patent/WO2000001962A1/fr active IP Right Grant
- 1999-07-07 KR KR1020007002277A patent/KR100613538B1/ko not_active IP Right Cessation
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4123905A (en) * | 1977-05-27 | 1978-11-07 | Borg-Warner Corporation | Torque converter assembly |
FR2616184A1 (fr) * | 1987-06-02 | 1988-12-09 | Valeo | Embrayage, notamment pour vehicule automobile |
FR2634849A1 (fr) * | 1988-07-08 | 1990-02-02 | Fichtel & Sachs Ag | Embrayage hydrodynamique |
FR2674306A1 (fr) * | 1991-03-22 | 1992-09-25 | Valeo | Embrayage de verrouillage pour appareil d'accouplement hydrocinetique, notamment pour vehicule automobile. |
WO1993013339A1 (fr) | 1991-12-23 | 1993-07-08 | Ford Motor Company Limited | Accouplement de derivation a friction pour convertisseur de couple hydrocinetique |
FR2724434A1 (fr) * | 1994-09-09 | 1996-03-15 | Valeo | Volant amortisseur, notamment pour vehicule automobile |
US5761970A (en) * | 1994-09-09 | 1998-06-09 | Valeo | Damping flywheel, particularly for motor vehicles |
FR2726620A1 (fr) | 1994-11-04 | 1996-05-10 | Valeo | Procede de montage d'un embrayage de verrouillage pour accouplement hydrocinetique, notamment pour vehicule automobile, embrayage de verrouillage et accouplement hydrocinetique le comportant |
WO1996014526A1 (fr) * | 1994-11-04 | 1996-05-17 | Valeo | Embrayage de verrouillage pour dispositif d'accouplement hydrocinetique, notamment pour vehicules automobiles et son procede de montage |
US5507622A (en) * | 1995-01-11 | 1996-04-16 | Ford Motor Company | Plastic molded torque converter turbine |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002044589A1 (fr) * | 2000-11-29 | 2002-06-06 | Thyssenkrupp Automotive Ag | Convertisseur de couple hydrodynamique |
US6622834B2 (en) | 2000-11-29 | 2003-09-23 | Ford-Werke-Aktiengesellschaft | Hydrodynamic torque converter |
EP1211438A3 (fr) * | 2000-11-29 | 2004-11-10 | Ford-Werke Aktiengesellschaft | Convertisseur de couple hydrodynamique |
Also Published As
Publication number | Publication date |
---|---|
HU221936B1 (hu) | 2003-02-28 |
DE19981454B4 (de) | 2011-04-28 |
HUP0004591A3 (en) | 2001-11-28 |
JP2002519608A (ja) | 2002-07-02 |
KR20010023627A (ko) | 2001-03-26 |
US6378676B1 (en) | 2002-04-30 |
FR2781545A1 (fr) | 2000-01-28 |
JP4416324B2 (ja) | 2010-02-17 |
DE19981454T1 (de) | 2001-08-02 |
HUP0004591A2 (hu) | 2001-05-28 |
FR2781545B1 (fr) | 2000-10-13 |
KR100613538B1 (ko) | 2006-08-16 |
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