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1. US20130085030 - Hydrodynamic coupling device, in particular a torque converter

Anmerkung: Text basiert auf automatischer optischer Zeichenerkennung (OCR). Verwenden Sie bitte aus rechtlichen Gründen die PDF-Version.

[ EN ]

Claims

1. A hydrodynamic coupling arrangement, comprising:
a housing arrangement capable of being filled with a fluid;
an impeller rotatable with the housing arrangement around an axis of rotation;
a turbine arranged in the housing arrangement rotatable with a driven member around the axis of rotation;
a lockup clutch for producing a torque transmission connection between the housing arrangement and the driven member;
a torsional vibration damping arrangement including an input region and an output region;
a first torque transmission path;
a second torque transmission path parallel to the first torque transmission path; and
a coupling arrangement for superposing torques transmitted via the first and second torque transmission paths, the coupling arrangement being provided between the input region and the output region, wherein the torsional vibration damping arrangement includes at least in the first torque transmission path a phase shifter arrangement for generating a phase shift of a rotational irregularity transmitted via the first torque transmission path relative to a rotational irregularity transmitted via the second torque transmission path.
2. The hydrodynamic coupling arrangement according to claim 1, wherein the phase shifter arrangement includes a first oscillation system having a primary side and a secondary side which is rotatable relative to the primary side around the axis of rotation against a force of a first spring arrangement.
3. The hydrodynamic coupling arrangement according to claim 2, wherein the output region includes a further oscillation system including a primary side and a secondary side which is rotatable relative to the primary side of the further oscillation system against an action of a second spring arrangement.
4. The hydrodynamic coupling arrangement according to claim 3, wherein at least one of the first oscillation system and the further oscillation system includes at least two vibration dampers which are arranged in series with one another and respectively comprise a primary side and a secondary side which is rotatable relative to the primary side.
5. The hydrodynamic coupling arrangement according to claim 3, wherein at least one of the first oscillation system and the further oscillation system includes at least two vibration dampers which work in parallel with one another and respectively comprise a primary side and a secondary side which is rotatable relative to the primary side.
6. The hydrodynamic coupling arrangement according to claim 3, wherein at least one of the first oscillation system and the further oscillation system includes a speed-adaptive vibration damping arrangement having at least one deflection mass which can be deflected in a circumferential direction from a basic position so as to change its distance from the axis of rotation.
7. The hydrodynamic coupling arrangement according to claim 3, wherein at least one of the first oscillation system and the further oscillation system includes a fixed-frequency vibration damping arrangement having at least one oscillation mass which can be deflected against an action of a return spring arrangement.
8. The hydrodynamic coupling arrangement according to claim 3, further comprising:
a friction damping arrangement associated with at least one of the first oscillation system and with the further oscillation system, wherein friction damping arrangement opposes a relative rotation between the primary side and the secondary side of the oscillation system.
9. The hydrodynamic coupling arrangement according to claim 2, wherein the turbine is coupled to the secondary side of the first oscillation system.
10. The hydrodynamic coupling arrangement according to claim 1, wherein the turbine is coupled to at least one of the first and second torque transmission paths.
11. The hydrodynamic coupling arrangement according to claim 10, wherein the turbine is coupled to the first torque transmission path.
12. The hydrodynamic coupling arrangement according to claim 1, wherein the lockup clutch is operatively arranged in one of the first and second torque transmission paths.
13. The hydrodynamic coupling arrangement according to claim 1, wherein the lockup clutch is operatively arranged in the first torque transmission path.
14. The hydrodynamic coupling arrangement according to claim 1, wherein the lockup clutch is operatively arranged in the output region ( 82).
15. The hydrodynamic coupling arrangement according to claim 1, wherein the lockup clutch is operatively arranged in the input region.
16. The hydrodynamic coupling arrangement according to claim 1, wherein the coupling arrangement comprises a planetary transmission arrangement.
17. The hydrodynamic coupling arrangement according to claim 16, wherein the planetary transmission arrangement includes a planet gear carrier which is connected to the second torque transmission path and which has a plurality of planet gears rotatably supported thereon.
18. The hydrodynamic coupling arrangement according to claim 17, wherein the planetary transmission arrangement includes:
a first coupling gear arrangement in meshing engagement with the planet gears which is connected to the first torque transmission path, and
a second coupling gear arrangement in meshing engagement with the planet gears which is connected to the output region.
19. The hydrodynamic coupling arrangement according to claim 18, wherein the first coupling gear arrangement in connection with the planet gears and the second coupling gear arrangement in connection with the planet gears provide transmission ratios that are identical to one another.
20. The hydrodynamic coupling arrangement according to claim 18, wherein the first coupling gear arrangement in connection with the planet gears and the second coupling gear arrangement in connection with the planet gears provide transmission ratios that differ from one another.
21. The hydrodynamic coupling arrangement according to claim 18, wherein the first coupling gear arrangement and the second coupling gear arrangement comprise a ring gear arrangement in each instance.
22. The hydrodynamic coupling arrangement according to claim 18, wherein the first coupling gear arrangement and the second coupling gear arrangement comprise a sun gear arrangement in each instance.
23. The hydrodynamic coupling arrangement according to claim 1, wherein the hydrodynamic coupling arrangement is a torque converter.