CN110894859B - Dual clutch device with fully hydraulic actuation for a drive train of a motor vehicle - Google Patents
Dual clutch device with fully hydraulic actuation for a drive train of a motor vehicle Download PDFInfo
- Publication number
- CN110894859B CN110894859B CN201910864426.4A CN201910864426A CN110894859B CN 110894859 B CN110894859 B CN 110894859B CN 201910864426 A CN201910864426 A CN 201910864426A CN 110894859 B CN110894859 B CN 110894859B
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- CN
- China
- Prior art keywords
- clutch
- sealing
- partial
- sub
- pressure
- 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.)
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- 230000009977 dual effect Effects 0.000 title claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 75
- 238000005192 partition Methods 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
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
- F16D25/10—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
- F16D25/06—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
- F16D25/12—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
Landscapes
- 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 provided, 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 arrangement for arranging between a drive unit and a transmission in a drive train of a motor vehicle is known from WO2015/130489 A1. 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 transmission elements are formed as sheet metal profiles, wherein both force transmission elements can be driven by means of a hydraulic actuating 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 partition wall is designed as a seal carrier on which a sealing element having two sealing lips is provided, 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 a pressure tank of the first partial clutch, wherein the sealing element has a sealing elementThe second seal lip is pressed against a seal plate fixed to a pressure tank of the first sub-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 axially movably above the arm. The sealing plate can thereby 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. Further radially inside the second partial clutch 3, there are two hydraulic chambers of the partial clutch 2,3, which are formed by a pressure chamber 4,5 and a centrifugal oil chamber 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 compression 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 chamber 4,5 or the centrifugal oil chamber 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 radially 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. And a sealing element.
Claims (8)
1. A dual clutch device with full hydraulic actuation for a drive train of a motor vehicle, comprising a first partial clutch (2) located radially outside and a second partial clutch (3) located radially inside the first partial clutch (2), wherein the pressure chamber (4) of the first partial clutch (2) and the pressure chamber (5) of the second partial clutch (3) and/or the centrifugal oil chamber (6,7) of the first and second partial clutches (2,3) are arranged radially inside the second partial clutch (3), and the pressure chamber (5) of the second sub-clutch (3) and the centrifugal oil chamber (6) of the first sub-clutch (2) are delimited by a common partition wall, characterized in that the partition wall is designed as a seal carrier (16) on which a sealing element (22) having 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), the seal carrier (16) forms a centrifugal oil chamber (6) of the first partial clutch (2) together with a sealing plate (19), a rotor (14) and a pressure tank (8) of the first partial clutch (2).
2. Double clutch device according to claim 1, characterized in that the seal carrier (16) forms together with a rotor (14) and a pressure pot (11) of the second sub-clutch (3) a pressure chamber (5) of the second sub-clutch (3), wherein a first sealing lip (17) of the sealing element (22) presses against the pressure pot (11) of the second sub-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 sub-clutch (3).
3. Double clutch device according to claim 1 or 2, characterized in that the second sealing lip (20) of the sealing element (22) presses against a sealing plate (19) fixed on the pressure tank (8) of the first sub-clutch (2).
4. Double clutch device according to claim 1 or 2, 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 one of the preceding claims 1 or 2, 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 one of the preceding claims 1 or 2, 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 one of the preceding claims 1 or 2, 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 a sealing plate (19) is supported on the second sealing lip (20) axially movably above the arm (21).
8. Double clutch device according to one of the preceding claims 1 or 2, characterized in that a sealing plate (19) is connected materially to the pressure pot (8) of the first partial clutch (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
| DE102018122386.2 | 2018-09-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110894859A CN110894859A (en) | 2020-03-20 |
| CN110894859B true 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103133558A (en) * | 2011-11-23 | 2013-06-05 | 舍弗勒技术股份两合公司 | Double clutch |
| DE102016206351A1 (en) * | 2016-04-15 | 2017-10-19 | Schaeffler Technologies AG & Co. KG | Double coupling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2364541C3 (en) * | 1973-12-24 | 1978-06-15 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Coupling arrangement for gearboxes that can be shifted under load |
| JP3743425B2 (en) * | 2002-06-18 | 2006-02-08 | トヨタ自動車株式会社 | Double interrupter |
| JP2006153168A (en) * | 2004-11-30 | 2006-06-15 | Nok Corp | Sealing device |
| JP4356679B2 (en) * | 2005-10-06 | 2009-11-04 | トヨタ自動車株式会社 | Friction engagement device |
| DE102005053896B3 (en) * | 2005-11-08 | 2007-01-25 | Siemens Ag | Ball bearing spindle drive with integral overload-prevention clutch, has single-piece peripheral casing with end nuts adjusting spring force on interleaved friction disc clutch |
| US8479905B2 (en) * | 2007-03-30 | 2013-07-09 | Eaton Corporation | Dual clutch arrangement with two piece main rotating manifold |
| US8863926B2 (en) * | 2007-06-29 | 2014-10-21 | Ford Global Technologies, Llc | Integrated starter generator and input clutch assembly for hybrid electric vehicle |
| JP5268873B2 (en) * | 2009-03-31 | 2013-08-21 | ジヤトコ株式会社 | Multi-plate friction element |
| JP5790376B2 (en) * | 2011-09-26 | 2015-10-07 | マツダ株式会社 | Automatic transmission |
| DE102012221958A1 (en) * | 2011-12-15 | 2013-06-20 | Schaeffler Technologies AG & Co. KG | Dual clutch i.e. axial wet dual clutch, for use in dual clutch transmission of drive train of vehicle, has supply units simultaneously supplying cooling oil to two gearbox-side and driving end-side arranged single clutches, respectively |
| US8834310B2 (en) * | 2012-10-24 | 2014-09-16 | Ford Global Technologies, Llc | Paths for supplying fluid to clutches of an automatic transmission |
| DE102014014985A1 (en) * | 2014-02-25 | 2015-08-27 | Borgwarner Inc. | Concentric double clutch device |
| DE102014216580A1 (en) * | 2014-08-21 | 2016-02-25 | Zf Friedrichshafen Ag | Hydraulic control device for an automatic transmission |
| DE102015202526A1 (en) * | 2015-02-12 | 2016-08-18 | Schaeffler Technologies AG & Co. KG | Coupling device and torque transmission device for a vehicle |
| 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 |
| US20180058572A1 (en) * | 2016-09-01 | 2018-03-01 | Ford Global Technologies, Llc | Multiplexed pressure sensor for vehicle transmission control |
-
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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103133558A (en) * | 2011-11-23 | 2013-06-05 | 舍弗勒技术股份两合公司 | Double clutch |
| DE102016206351A1 (en) * | 2016-04-15 | 2017-10-19 | Schaeffler Technologies AG & Co. KG | Double coupling device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018122386A1 (en) | 2020-03-19 |
| CN110894859A (en) | 2020-03-20 |
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