CN110894859A - Double clutch device with full hydraulic actuation for a drive train of a motor vehicle - Google Patents
Double clutch device with full hydraulic actuation for a drive train of a motor vehicle Download PDFInfo
- Publication number
- CN110894859A CN110894859A CN201910864426.4A CN201910864426A CN110894859A CN 110894859 A CN110894859 A CN 110894859A CN 201910864426 A CN201910864426 A CN 201910864426A CN 110894859 A CN110894859 A CN 110894859A
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- CN
- China
- Prior art keywords
- clutch
- partial
- sealing
- pressure
- partial clutch
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- 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.)
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Classifications
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- 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
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- 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
- F16D25/10—Clutch systems with a plurality of fluid-actuated clutches
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- 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
- F16D25/14—Fluid pressure control
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention relates to a dual clutch device with full hydraulic actuation for a drive train of a motor vehicle, comprising a first partial clutch located radially on the outside and a second partial clutch located radially on the inside of the first partial clutch, wherein pressure chambers of the first and second partial clutches and/or centrifugal oil chambers of the first and second partial clutches are arranged radially on the inside of the second partial clutch, and the pressure chambers of the second partial clutch and the centrifugal oil chambers of the first partial clutch are delimited by a common partition wall. In a double clutch device with a very compact construction, the partition wall is designed as a seal carrier on which a sealing element with two sealing lips is arranged, wherein the first sealing lip seals the pressure chamber of the second partial clutch and the second sealing lip seals the centrifugal oil chamber of the first partial clutch.
Description
Technical Field
The invention relates to a dual clutch device with full hydraulic actuation for a drive train of a motor vehicle, comprising a first partial clutch located radially on the outside and a second partial clutch located radially on the inside of the first partial clutch, wherein pressure chambers of the first and second partial clutches and/or centrifugal oil chambers of the first and second partial clutches are arranged radially on the inside of the second partial clutch, and the pressure chambers of the second partial clutch and the centrifugal oil chambers of the first partial clutch are delimited by a common partition wall.
Background
A concentric dual clutch device for arrangement between a drive unit and a transmission in a drive train of a motor vehicle is known from WO2015/130489a 1. The double clutch device has an outer disk clutch and an inner disk clutch, wherein the outer disk clutch is associated with an outer disk carrier and the inner disk clutch is associated with an inner disk carrier. The outer and inner disk clutches each have a force transmission unit for transmitting an actuating force to the outer and inner disk clutches. Both force-transmitting elements are formed as sheet metal profiles, wherein both force-transmitting elements can be driven by means of a respective hydraulically actuated piston. The piston is associated with a pressure chamber, which is pressurized with hydraulic medium pressure, and a pressure compensation chamber for at least partial compensation of the flowing oil. The pressure chamber of the inner disk clutch and the pressure compensation chamber of the outer disk clutch are separated in the radial direction by a common partition wall.
Within a limited installation space, the hydraulic actuating system, which is formed by the pressure chambers and the leakage oil chambers of the two partial clutches, together with all the seals, must be arranged such that the required actuating forces are achieved and an almost complete compensation of the leakage oil is achieved.
Disclosure of Invention
The object of the invention is to provide a double clutch device in which the installation space can be further reduced.
This object is achieved according to the invention in that: the separating wall is designed as a seal carrier on which a sealing element having two sealing lips is arranged, wherein the first sealing lip seals a pressure chamber of the second partial clutch and the second sealing lip seals a centrifugal oil chamber of the first partial clutch. Since the two sealing lips are integrated in one component, a saving in installation space and costs is thereby achieved.
Advantageously, the seal carrier forms a second pressure chamber of the second partial clutch together with the rotor and the pressure pot of the second partial clutch, wherein the first sealing lip of the sealing element presses against the pressure pot of the second partial clutch, while the sealing ring, which is opposite the rotor, is pressed against the rotor by the pressure pot of the second partial clutch. Since the pressure chamber of the second partial clutch and the centrifugal oil chamber of the first partial clutch are sealed by means of a common seal carrier, additional components can be omitted, wherein the pressure chamber and the centrifugal oil chamber form two separate hydraulic chambers.
In one embodiment, the seal carrier forms a centrifugal oil chamber of the first partial clutch together with a sealing plate, the rotor and the pressure pot of the first partial clutch, wherein the second sealing lip of the sealing element presses against the sealing plate fixed to the pressure pot of the first partial clutch. Therefore, the centrifugal oil chamber
And the inner and outer diameters of the pressure chamber, wherein the plate elements including their seals are nested within each other.
In one embodiment, the sealing element with the two sealing lips is connected to the end of the seal carrier in a material-locking manner. Thus ensuring that: the sealing effect is reliably ensured even during operation of the double clutch device, in which the hydraulic fluid moves within the double clutch device.
In a particularly cost-effective embodiment, the sealing element with the sealing lip is designed as a rubber composite component.
In one variant, the seal carrier is pressed onto the rotor by its end without the sealing lip. This interference fit is designed such that it fixes the radially extending seal carrier, on the one hand, even during actuation, and seals the pressure chamber of the second partial clutch with respect to the centrifugal oil chamber of the first partial clutch, on the other hand. An additional sealing on the inner diameter of the seal carrier can thus be dispensed with, which additionally saves axial installation space and costs.
In a further refinement, the seal carrier has an axially extending arm on the outer diameter, on which arm the sealing element is positioned, wherein the sealing plate is supported on the second sealing lip so as to be axially displaceable above the arm. The sealing plate can thus slide over the sealing lip and project into the seal carrier when the first partial clutch is actuated.
In a further embodiment, the sealing plate is connected to the pressure tank of the first partial clutch in a material-locking manner.
Drawings
The invention allows many embodiments. One of which is explained in more detail with reference to the figures shown in the drawings.
The figures show that:
figure 1 shows an embodiment of a double clutch device according to the invention,
fig. 2 shows a detail of the double clutch device according to fig. 1.
Detailed Description
In fig. 1, an embodiment of a wet dual clutch device according to the invention is shown, which is fully hydraulically operated and positioned between a drive and a transmission in a powertrain of a vehicle. The double clutch device 1 is formed by a radially outer first partial clutch 2. The second partial clutch 3 is arranged radially inside the first partial clutch 2. Radially further inside the second partial clutch 3, there are hydraulic chambers of the two partial clutches 2, 3, which are formed by pressure chambers 4, 5 and centrifugal oil chambers 6, 7. The hydraulic chambers are designed such that, on the one hand, the forces required for transmitting torque are achieved and, on the other hand, an almost complete compensation of the flowing oil is achieved
The first partial clutch 2 is held by a pressure tank 8, the pressure tank 8 enclosing a pressure spring set 9 on which a first piston 10 is arranged. The second partial clutch 3 has a similar construction and has a pressure tank 11 which carries a second pressure spring group 12 in which a piston 13 is movably mounted. The pressure chamber 4 of the first sub-clutch 2 is formed between the pressure tank 8 and the rotor 14. Above the compression spring set 9, the centrifugal oil chamber 6 of the first partial clutch 2 is sealed. In contrast, the pressure chamber 5 of the second partial clutch 3 is positioned below the pressure tank 11 of the second partial clutch 3, while the centrifugal oil chamber 7 of the second partial clutch 3 extends axially above the pressure spring package 12 of the second partial clutch 3 and the pressure tank 11 of the second partial clutch 3. A hollow shaft 15 is mounted below the rotor 14.
Fig. 2 shows a detail from fig. 1, which shows in particular the pressure chambers 4, 5 or the centrifugal oil chambers 6, 7 of the two partial clutches 2, 3. In order to be as compact as possible, the seal carrier 16 is inserted as a central element. The seal carrier forms together with the pressure tank 11 and the rotor 14 of the second sub-clutch 3 the pressure chamber 5 of the second sub-clutch 3. For this purpose, the sealing lip 17 is positioned on the seal carrier 16. The pressure chamber 4 of the first partial clutch 2 is additionally sealed with respect to the rotor 14 by a lip seal 18. Furthermore, the seal carrier 16 forms, together with the sealing plate 19, the rotor 14 and the pressure pot 8 of the first sub-clutch 2, the centrifugal oil chamber 6 of the first sub-clutch 2. In order to seal the centrifuge oil chamber 6 at the outer diameter of the seal carrier 16, a second sealing lip 20 is fixed to the seal carrier 16. For this purpose, the seal carrier 16 has an arm 21 on its outer diameter, which extends axially to the compression spring set 9, 12 and on which a sealing element 22 is injection-molded, which has a first sealing lip 17 for sealing on the pressure pot 11 of the second partial clutch 2 and a second sealing lip 20 for sealing on the sealing plate 19 against the centrifugal oil chamber 6 of the first partial clutch 2. The sealing plate 19 is welded to the pressure tank 8 of the first partial clutch 2. The seal carrier 16 thus carries a sealing lip 17 for the pressure chamber 5 of the second partial clutch 3 and a sealing lip 20 for the centrifugal oil chamber 6 of the first partial clutch 2.
The seal carrier 16 is press-fitted on the rotor 14 at the inner diameter, wherein the interference fit is designed such that it fixes the seal carrier 16 on the one hand even during operation of the dual clutch device 1 and seals the pressure chamber 5 of the second partial clutch 2 with respect to the centrifugal oil chamber 6 of the first partial clutch 2 on the other hand. Additional sealing on the inner diameter of the seal carrier 16 can thus be dispensed with. The seal carrier 16 is formed in such a way that, when the first partial clutch 2 is actuated, the sealing plate 19 slides over the second sealing lip 20 and projects axially into the seal carrier 16. This is achieved by: the first sealing lip 17 is arranged slightly higher in the radial direction than the second sealing lip 20, wherein the two sealing lips 17, 20 are each formed on the end of an arm 21 of the seal carrier 16.
Thus, the sealing element 22 formed as a rubber composite part for both hydraulic chambers can be used for sealing. In addition, the sealing element 22 is a relatively small component with respect to the pressure tank 8, 11, whereby handling during production can be improved compared to injection-molded seals on relatively large components.
List of reference numerals
1 double clutch device
2 first sub-clutch
3 second sub-clutch
4 pressure chamber
5 pressure chamber
6 centrifugal oil chamber
7 centrifugal oil chamber
8 pressure tank
9 pressure spring group
10 piston
11 pressure tank
12 pressure spring group
13 piston
14 rotor
15 hollow shaft
16 seal carrier
17 sealing lip
18 lip-shaped sealing ring
19 sealing plate
20 sealing lip
21 arm of seal carrier
22 sealing element
Claims (8)
1. Double clutch device with full hydraulic actuation for a drive train of a motor vehicle, comprising a first partial clutch (2) which is located radially outside and a second partial clutch (3) which is located radially inside the first partial clutch (2), wherein the pressure chambers (4, 5) of the first and second partial clutches (2, 3) and/or the centrifugal oil chambers (6, 7) of the first and second partial clutches (2, 3) are arranged radially inside the second partial clutch (3), and the pressure chambers (5) of the second partial clutch (3) and the centrifugal oil chambers (6) of the first partial clutch (2) are delimited by a common separating wall (16), characterized in that the separating wall is designed as a seal carrier (16) on which a sealing element (22) with two sealing lips (17, 20) is arranged, wherein a first sealing lip (17) seals a pressure chamber (5) of the second sub-clutch (3) and a second sealing lip (20) seals a centrifugal oil chamber (6) of the first sub-clutch (2).
2. Double clutch device according to claim 1, characterized in that the seal carrier (16) forms together with the rotor (14) and the pressure pot (11) of the second partial clutch (3) a second pressure chamber (5) of the second partial clutch (3), wherein a first sealing lip (17) of the sealing element (22) presses against the pressure pot (11) of the second partial clutch (3) and a sealing ring (18) is arranged opposite the rotor (14), which sealing ring is pressed against the rotor (14) by the pressure pot (11) of the second partial clutch (3).
3. Double clutch device according to claim 1 or 2, characterized in that the seal carrier (16) forms together with a sealing plate (19), the rotor (14) and the pressure pot (8) of the first sub-clutch (2) a centrifugal oil chamber (6) of the first sub-clutch (2), wherein the second sealing lip (20) of the sealing element (22) presses against the sealing plate (19) fixed on the pressure pot (8) of the first sub-clutch (2).
4. Double clutch device according to claim 1, 2 or 3, characterized in that the sealing element (22) with the two sealing lips (17, 20) is connected with the end of the seal carrier (16) in a material-fit manner.
5. Double clutch device according to at least one of the preceding claims, characterized in that the sealing element (22) with the sealing lips (17, 20) is constructed as a rubber composite component.
6. Double clutch device according to at least one of the preceding claims, characterized in that the seal carrier (16) is press-fitted with its end without a sealing lip onto the rotor (14).
7. Double clutch device according to at least one of the preceding claims, characterized in that the seal carrier (16) has an axially extending arm (21) on the outer diameter, on which arm the sealing element (22) is positioned, wherein the sealing plate (19) is supported on the second sealing lip (20) axially movably above the arm (21).
8. Double clutch device according to at least one of the preceding claims, characterized in that the sealing plate (19) is connected in a material-fit manner to the pressure tank (8) of the first partial clutch (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018122386.2 | 2018-09-13 | ||
| DE102018122386.2A DE102018122386A1 (en) | 2018-09-13 | 2018-09-13 | Double clutch device for a drive train of a motor vehicle with fully hydraulic actuation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110894859A true CN110894859A (en) | 2020-03-20 |
| CN110894859B CN110894859B (en) | 2023-03-28 |
Family
ID=69647005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910864426.4A Active CN110894859B (en) | 2018-09-13 | 2019-09-12 | Dual clutch device with fully hydraulic actuation for a drive train of a motor vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110894859B (en) |
| DE (1) | DE102018122386A1 (en) |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1497079A (en) * | 1973-12-24 | 1978-01-05 | Zahnradfabrik Friedrichshafen | Change-speed gearboxes shiftable under load |
| DE10327729A1 (en) * | 2003-06-18 | 2005-01-05 | Zf Sachs Ag | Coupling device, in particular double or multiple coupling device, and sealing concept for this |
| US20050205378A1 (en) * | 2002-06-18 | 2005-09-22 | Toyota Jidosha Kabushiki Kaisha | Dual connecting and disconnecting apparatus |
| JP2006153168A (en) * | 2004-11-30 | 2006-06-15 | Nok Corp | Sealing device |
| US20070080041A1 (en) * | 2005-10-06 | 2007-04-12 | Toyota Jidosha Kabushiki Kaisha | Frictional engagement apparatus |
| CN101305209A (en) * | 2005-11-08 | 2008-11-12 | 西门子公司 | Ball screw drive having overload clutch |
| US20090000896A1 (en) * | 2007-06-29 | 2009-01-01 | Knowles Shaun G | Integrated starter generator and input clutch assembly for hybrid electric vehicle |
| US20090084652A1 (en) * | 2007-03-30 | 2009-04-02 | Kummer Martin E | Dual clutch arrangement with two piece main rotating manifold |
| JP2010255841A (en) * | 2009-03-31 | 2010-11-11 | Jatco Ltd | Multi-plate friction element |
| CN103133558A (en) * | 2011-11-23 | 2013-06-05 | 舍弗勒技术股份两合公司 | Dual clutch |
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| US20140110213A1 (en) * | 2012-10-24 | 2014-04-24 | Ford Global Technologies, Llc | Paths for supplying fluid to clutches of an automatic transmission |
| US20140345998A1 (en) * | 2011-09-26 | 2014-11-27 | Mazda Motor Corporation | Automatic transmission |
| CN105889347A (en) * | 2015-02-12 | 2016-08-24 | 舍弗勒技术股份两合公司 | Clutch device for traffic tool, and torque transmission device |
| CN106030142A (en) * | 2014-02-25 | 2016-10-12 | 博格华纳公司 | Concentric dual clutch device |
| JP2017040313A (en) * | 2015-08-20 | 2017-02-23 | 株式会社ダイナックス | Friction clutch |
| DE102015226524A1 (en) * | 2015-12-22 | 2017-06-22 | Schaeffler Technologies AG & Co. KG | Wet-running double clutch |
| DE202017105269U1 (en) * | 2016-09-01 | 2017-09-19 | Ford Global Technologies, Llc | Multiplex pressure sensor for vehicle transmission control |
| US20170268659A1 (en) * | 2014-08-21 | 2017-09-21 | Zf Friedrichshafen Ag | Hydraulic Control Device for an Automatic Transmission |
| DE102016206351A1 (en) * | 2016-04-15 | 2017-10-19 | Schaeffler Technologies AG & Co. KG | Double coupling device |
-
2018
- 2018-09-13 DE DE102018122386.2A patent/DE102018122386A1/en active Pending
-
2019
- 2019-09-12 CN CN201910864426.4A patent/CN110894859B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1497079A (en) * | 1973-12-24 | 1978-01-05 | Zahnradfabrik Friedrichshafen | Change-speed gearboxes shiftable under load |
| US20050205378A1 (en) * | 2002-06-18 | 2005-09-22 | Toyota Jidosha Kabushiki Kaisha | Dual connecting and disconnecting apparatus |
| DE10327729A1 (en) * | 2003-06-18 | 2005-01-05 | Zf Sachs Ag | Coupling device, in particular double or multiple coupling device, and sealing concept for this |
| JP2006153168A (en) * | 2004-11-30 | 2006-06-15 | Nok Corp | Sealing device |
| US20070080041A1 (en) * | 2005-10-06 | 2007-04-12 | Toyota Jidosha Kabushiki Kaisha | Frictional engagement apparatus |
| CN101305209A (en) * | 2005-11-08 | 2008-11-12 | 西门子公司 | Ball screw drive having overload clutch |
| US20090084652A1 (en) * | 2007-03-30 | 2009-04-02 | Kummer Martin E | Dual clutch arrangement with two piece main rotating manifold |
| US20090000896A1 (en) * | 2007-06-29 | 2009-01-01 | Knowles Shaun G | Integrated starter generator and input clutch assembly for hybrid electric vehicle |
| JP2010255841A (en) * | 2009-03-31 | 2010-11-11 | Jatco Ltd | Multi-plate friction element |
| US20140345998A1 (en) * | 2011-09-26 | 2014-11-27 | Mazda Motor Corporation | Automatic transmission |
| CN103133558A (en) * | 2011-11-23 | 2013-06-05 | 舍弗勒技术股份两合公司 | Dual clutch |
| CN103382970A (en) * | 2011-12-15 | 2013-11-06 | 舍弗勒技术股份两合公司 | Dual clutch |
| US20140110213A1 (en) * | 2012-10-24 | 2014-04-24 | Ford Global Technologies, Llc | Paths for supplying fluid to clutches of an automatic transmission |
| CN106030142A (en) * | 2014-02-25 | 2016-10-12 | 博格华纳公司 | Concentric dual clutch device |
| US20170268659A1 (en) * | 2014-08-21 | 2017-09-21 | Zf Friedrichshafen Ag | Hydraulic Control Device for an Automatic Transmission |
| CN105889347A (en) * | 2015-02-12 | 2016-08-24 | 舍弗勒技术股份两合公司 | Clutch device for traffic tool, and torque transmission device |
| JP2017040313A (en) * | 2015-08-20 | 2017-02-23 | 株式会社ダイナックス | Friction clutch |
| DE102015226524A1 (en) * | 2015-12-22 | 2017-06-22 | Schaeffler Technologies AG & Co. KG | Wet-running double clutch |
| DE102016206351A1 (en) * | 2016-04-15 | 2017-10-19 | Schaeffler Technologies AG & Co. KG | Double coupling device |
| DE202017105269U1 (en) * | 2016-09-01 | 2017-09-19 | Ford Global Technologies, Llc | Multiplex pressure sensor for vehicle transmission control |
Non-Patent Citations (3)
| Title |
|---|
| 刘建利等: "双离合器式自动变速器换挡系统的研究与设计", 《农机化研究》 * |
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| 钟维等: "湿式双离合器原理研究", 《清远职业技术学院学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110894859B (en) | 2023-03-28 |
| DE102018122386A1 (en) | 2020-03-19 |
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