DE102006042441A1 - Internal cooling for by-pass clutch of hydraulic torque converter for use in transmission, has flow channels formed on outer clutch plate of by-pass clutch and receiving operating fluid stream from between converter pump and turbine - Google Patents
Internal cooling for by-pass clutch of hydraulic torque converter for use in transmission, has flow channels formed on outer clutch plate of by-pass clutch and receiving operating fluid stream from between converter pump and turbine Download PDFInfo
- Publication number
- DE102006042441A1 DE102006042441A1 DE102006042441A DE102006042441A DE102006042441A1 DE 102006042441 A1 DE102006042441 A1 DE 102006042441A1 DE 102006042441 A DE102006042441 A DE 102006042441A DE 102006042441 A DE102006042441 A DE 102006042441A DE 102006042441 A1 DE102006042441 A1 DE 102006042441A1
- Authority
- DE
- Germany
- Prior art keywords
- clutch
- operating fluid
- torque converter
- converter
- turbine
- 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
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
- F16D25/123—Details not specific to one of the before-mentioned types in view of cooling and lubrication
-
- 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
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
- F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
- F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
- F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
-
- 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
- F16H2045/021—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type three chamber system, i.e. comprising a separated, closed chamber specially adapted for actuating a lock-up clutch
-
- 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
- F16H2045/0215—Details of oil circulation
-
- 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
- F16H2045/0284—Multiple disk type lock-up clutch
-
- 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
- F16H2045/0289—Details of friction surfaces of the lock-up clutch
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Die Erfindung betrifft einen hydrodynamischen Drehmomentwandler mit einer Überbrückungskupplung gemäß dem einteiligen Patentanspruch 1.The The invention relates to a hydrodynamic torque converter with a lockup clutch according to the one-piece Claim 1.
Aus
der
Es gibt gattungsfremde nasse Anfahrkupplungen bei denen sich beim Anfahren Betriebsfluid bzw. Öl zwischen den Kupplungslamellen befindet. Diese nassen Anfahrkupplungen unterscheiden sich grundsätzlich von Überbrückungskupplungen, da bei nassen Anfahrkupplungen eine Drehzahldifferenz für den Betriebsfluidstrom prinzipbedingt notwendig ist.It are non-generic wet starting clutches in which when starting Operating fluid or oil located between the clutch plates. These wet starting clutches differ fundamentally of lock-up clutches, because with wet starting clutches a speed difference for the operating fluid flow principle is necessary.
Aufgabe der Erfindung ist es, für hohe Drehmomente einen besonders ausfallsicheren hydrodynamischen Drehmomentwandler mit Überbrückungskupplung zu schaffen.task The invention is for high torques a particularly fail-safe hydrodynamic Torque converter with lockup clutch to accomplish.
Diese Aufgabe wird mit den Merkmalen von Patentanspruch 1 gelöst.These Task is solved with the features of claim 1.
Eine Überbrückungskupplung erhöht den Wirkungsgrad des hydrodynamischen Drehmomentwandlers, da das Pumpenrad und das Turbinenrad in vielen Fahrzuständen reibschlüssig miteinander gekoppelt werden können, so dass die hydraulischen Verluste minimiert werden. Dabei kann die Überbrückungskupplung auch auf ein bestimmtes Reibmoment eingeregelt werden, so dass Drehmomentschläge auch bei Kopplung von Pumpenrad und Turbinenrad nicht weitergeleitet werden. Ferner kann mit einem geringen Schlupf eine Dämpfung für einen federelastischen Torsionsdämpfer erreicht werden. Insbesondere diese Funktionen bewirken jedoch auch bei geschlossener oder zumindest nahezu geschlossener Überbrückungskupplung eine thermische Belastung der Kupplungslamellen. Diese Belastung nimmt mit der Höhe des zu übertragenden Drehmomentes zu.A lockup clutch elevated the efficiency of the hydrodynamic torque converter, as the Impeller and the turbine in many driving conditions frictionally with each other can be coupled so that the hydraulic losses are minimized. It can the lock-up clutch also be adjusted to a certain friction torque, so that torque beats too not coupled with coupling of impeller and turbine wheel become. Furthermore, with a low slip damping for a elastic torsional damper be achieved. In particular, these functions but also at closed or at least almost closed lock-up clutch a thermal load on the clutch plates. This burden decreases with the height to be transferred Torque too.
Erfindungsgemäß ist in den inneren Kupplungslamellen oder den äußeren Kupplungslamellen eine Innenkühlung vorgesehen. Dazu sind Strömungskanäle vorgesehen, die das Betriebsfluid des hydrodynamischen Drehmomentwandlers aus dem Raum zwischen den Wandlerpumpenschaufeln und den Wandlerturbinenschaufeln durch die Überbrückungskupplung radial nach innen oder außen leiten. Dabei werden die Kupplungslamellen mit den Strömungskanälen von dem Betriebsfluid gekühlt.According to the invention is in the inner clutch plates or the outer clutch plates a internal cooling intended. For this flow channels are provided, which is the operating fluid of the hydrodynamic torque converter the space between the converter pump blades and the converter turbine blades through the lock-up clutch radially inwards or outwards conduct. The clutch plates with the flow channels of the operating fluid cooled.
Dabei besteht die innengekühlte Kupplungslamelle aus zwei Lammellenteilen. Die Strömungskanäle werden dabei gebildet, indem zumindest einer der beiden Lammellenteile mit Noppen versehen ist, die aus dem Blech des Lamellenteils herausgedrückt sind. Die Noppen liegen am anderen Lamellenteil an. Damit bildet sich ein durchströmbarer Zwischenraum. In besonders vorteilhafter Weise sind die beiden einer Kupplungslamelle zugeordneten Lamellenteile mit Noppen versehen. Dabei liegen die Noppen aneinander an, so dass sich ein sehr breiter Strömungskanal ergibt, der einen dementsprechend geringen Strömungsverlust aufweist. Demzufolge muss eine Ölpumpe nur einen geringen Wandlerinnendruck aufbauen.there is the internally cooled Clutch plate made of two parts. The flow channels will be thereby formed by at least one of the two Lammellenteile is provided with nubs that are pushed out of the plate of the fin part. The nubs are on the other lamella part. This forms a flow-through Gap. In a particularly advantageous manner, the two are one Clutch plate assigned lamellar parts provided with knobs. The knobs lie against each other, so that a very broad flow channel results, which has a correspondingly low flow loss. As a result, must be an oil pump build up only a small internal converter pressure.
Weitere Kupplungslamellen bilden den Reibpartner und können mit einem Reibbelag versehen sein. Dieser Reibbelag kann mit oder ohne Nuten ausgeführt sein. Die erfindungsgemäßen Strömungskanäle haben gegenüber einer Alternativlösung mit besonders tiefen Nuten in dem Reibbelag den Vorteil, dass dünne Reibbeläge verwendet werden können. Das spart axialen Bauraum und teures Reibbelagsmaterial ein. In einer besonders vorteilhaften Ausgestaltung der Erfindung kann sogar gänzlich auf Nuten im Rebbelag verzichtet werden, was mit einer entsprechenden Erhöhung der Flächenpressung und der mechanischen Festigkeit des Reibbelages verbunden ist.Further Clutch plates form the friction partner and can be provided with a friction lining. This friction lining can be designed with or without grooves. The flow channels according to the invention have across from an alternative solution with particularly deep grooves in the friction lining the advantage that uses thin friction linings can be. The Saves axial space and expensive friction lining material. In a particularly advantageous embodiment of the invention may even completely Grooves are dispensed in the vine, what with a corresponding increase the surface pressure and the mechanical strength of the friction lining is connected.
In einer Ausgestaltungsform, bei welcher Ausnehmungen in einem äußeren und/oder einem inneren Lamellenträger vorgesehen sind, kann das Betriebsfluid mit nur geringen Strömungsverlusten zu den gekühlten Kupplungslamellen – bzw. von diesen weg – geleitet werden.In an embodiment in which recesses in an outer and / or an inner plate carrier are provided, the operating fluid with only small flow losses to the chilled Clutch plates - or away from them become.
In einer besonders vorteilhaften Ausgestaltung der Erfindung sind die Kupplungslamellen mit den Strömungskanälen aus einem guten Wärmeleiter – wie Stahl – gefertigt, so dass diese einen großen Teil der Wärme aus dem Betrieb der Überbrückungskupplung aufnehmen und wieder an das Betriebsfluid abgeben kann. Der Reibbelag an den anderen Kupplungslamellen ist ein relativ guter Isolator, so dass dieser und die mit diesem fest verbundene anderen Kupplungslamellen frei von thermischer Belastung gehalten werden.In a particularly advantageous embodiment of the invention are the Clutch plates with the flow channels out a good heat conductor - like steel - made, so this is a big part the heat from the operation of the lock-up clutch record and return to the operating fluid. The friction lining on the other clutch plates is a relatively good insulator, so that this and the other firmly connected to this clutch plates be kept free of thermal stress.
Weitere Vorteile der Erfindung gehen aus den weiteren Patentansprüchen, der Beschreibung und der Zeichnung vor.Further Advantages of the invention will become apparent from the other claims, the Description and the drawing above.
Die Erfindung ist nachfolgend anhand mehrerer Ausführungsbeispiele erläutert.The The invention is explained below with reference to several embodiments.
Dabei zeigen:there demonstrate:
Ausgangsseitig
ist der hydrodynamische Drehmomentwandler
Der
hydrodynamische Drehmomentwandler
Die
nachfolgende nähere
Beschreibung des Ausführungsbeispiels
folgt dabei dem Kraftfluss von der Kurbelwelle auf das Gehäuse
Das
Turbinenrad
Eine
innere Nabe
Das
Turbinenrad
- – des Stützblechs
46 , - – des
Federträgers
44 und - – eines
drehfest mit letzterem vernieteten Kupplungsbleches
53
- - the support plate
46 . - - the spring carrier
44 and - - A non-rotatably riveted with the latter coupling plate
53
Der
Federträger
Das
Stützblech
Das
Kupplungsblech
Dabei
weisen die inneren Kupplungslamellen
In
Gemäß
Das
Gehäuse
Im
Betrieb des hydrodynamischen Drehmomentwandlers
- – dem Turbinenrad
37 und - – dem
Pumpenrad
35 bzw. dem Gehäuse5
- - the turbine wheel
37 and - - the impeller
35 or the housing5
Zwei
alternative Ausgestaltungen dieser Ausnehmungen sind in
In
der Ausgestaltung gemäß
Die Kupplungslamellen können auch aus mehr als nur zwei Lamellenteilen zusammengesetzt sein. Insbesondere können drei Lamellenteile vorgesehen sein.The Clutch plates can be composed of more than just two fin parts. In particular, you can be provided three leaf parts.
Bei den beschriebenen Ausführungsformen handelt es sich nur um beispielhafte Ausgestaltungen. Eine Kombination der beschriebenen Merkmale für unterschiedliche Ausführungsformen ist ebenfalls möglich. Weitere, insbesondere nicht beschriebene Merkmale der zur Erfindung gehörenden Vorrichtungsteile, sind den in den Zeichnungen dargestellten Geometrien der Vorrichtungsteile zu entnehmen.at the described embodiments is they are only exemplary embodiments. A combination of described features for different embodiments is also possible. Further, in particular not described features of the invention belonging Device parts are the geometries shown in the drawings to remove the device parts.
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006042441.7A DE102006042441B4 (en) | 2006-09-09 | 2006-09-09 | Hydrodynamic torque converter with a lock-up clutch |
PCT/EP2007/001438 WO2007098872A1 (en) | 2006-02-24 | 2007-02-20 | Hydrodynamic torque converter having a bypass clutch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006042441.7A DE102006042441B4 (en) | 2006-09-09 | 2006-09-09 | Hydrodynamic torque converter with a lock-up clutch |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102006042441A1 true DE102006042441A1 (en) | 2008-03-27 |
DE102006042441B4 DE102006042441B4 (en) | 2017-05-24 |
Family
ID=39104558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006042441.7A Expired - Fee Related DE102006042441B4 (en) | 2006-02-24 | 2006-09-09 | Hydrodynamic torque converter with a lock-up clutch |
Country Status (1)
Country | Link |
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DE (1) | DE102006042441B4 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009036437A1 (en) | 2008-08-18 | 2010-02-25 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | powertrain |
US9175760B2 (en) | 2012-07-25 | 2015-11-03 | Zf Friedrichshafen Ag | Starting element with hydrodynamic torque converter |
DE102009024744B4 (en) | 2008-06-26 | 2023-02-16 | Schaeffler Technologies AG & Co. KG | power transmission device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19722151C2 (en) * | 1996-05-29 | 2001-09-13 | Exedy Corp | Torque converter with lock-up clutch |
DE10233335A1 (en) * | 2002-07-23 | 2004-02-12 | Zf Friedrichshafen Ag | Hydrodynamic torque converter especially for automatic transmission of motor vehicle has lockup clutch discs not cooled with oil from hydrodynamic circuit so heat dissipation takes place independently of field around lockup clutch |
DE10350935B4 (en) * | 2002-11-16 | 2019-02-21 | Schaeffler Technologies AG & Co. KG | torque converter |
-
2006
- 2006-09-09 DE DE102006042441.7A patent/DE102006042441B4/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009024744B4 (en) | 2008-06-26 | 2023-02-16 | Schaeffler Technologies AG & Co. KG | power transmission device |
DE102009036437A1 (en) | 2008-08-18 | 2010-02-25 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | powertrain |
WO2010020218A1 (en) * | 2008-08-18 | 2010-02-25 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Drive train comprising a hydrodynamic torque converter, and hydrodynamic torque converter |
US8291700B2 (en) | 2008-08-18 | 2012-10-23 | Schaeffler Technologies AG & Co. KG | Drive train comprising a hydrodynamic torque converter, and hydrodynamic torque converter |
DE112009001792B4 (en) * | 2008-08-18 | 2020-01-23 | Schaeffler Technologies AG & Co. KG | powertrain |
US9175760B2 (en) | 2012-07-25 | 2015-11-03 | Zf Friedrichshafen Ag | Starting element with hydrodynamic torque converter |
Also Published As
Publication number | Publication date |
---|---|
DE102006042441B4 (en) | 2017-05-24 |
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