Start-up element with torsional vibration damper and vibration damper

Patent metadata

Field	Value
Publication number	US-9709144-B2
Application number	US-201314417045-A
Country	US
Kind code	B2
Filing date	Jun 25, 2013
Priority date	Jul 25, 2012
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

A starting element has a torsional vibration damper coupleable with a drive with a drive-side input element rotatable against an action of a first spring element and a driven-side output component rotatable against the action of a second spring element arrangement around an axis of rotation. The driven-side output component is coupled with an output of the starting element. A hydrodynamic coupling device has a turbine and a turbine flange connected therewith fixed with respect to rotation. The turbine flange is coupled with the output to be fixed with respect to rotation a first connection. A tuned mass damper a mass damper support element coupled with an intermediate transmission arrangement by a second mechanical connection. The mass damper support element extends opposite to a radial direction perpendicular to the axis of rotation to a component of the output.

First claim

The invention claimed is:

1. A starting element comprising:
a torsional vibration damper configured to be coupled with a drive and having a drive-side input element that is rotatable against an action of a first spring element arrangement around an axis of rotation with respect to an intermediate transmission arrangement, and a driven-side output component that is rotatable against the action of a second spring element arrangement around the axis of rotation with respect to the intermediate transmission arrangement, the driven-side output component is coupled with an output of the starting element to be fixed with respect to rotation relative to it;
a hydrodynamic coupling device having a turbine and a turbine flange connected therewith to be fixed with respect to rotation relative to it, wherein the turbine flange is coupled with the output of the starting element to be fixed with respect to rotation relative to it by a first mechanical connection; and
a tuned mass damper having at least one mass damper support element supporting at least one damper weight, the at least one mass damper support element is coupled with the intermediate transmission arrangement to be fixed with respect to rotation relative to it by a second mechanical connection,
wherein the output of the starting element is formed by a driven hub,
wherein the at least one mass damper support element extends opposite to a radial direction perpendicular to the axis of rotation to a component of the output of the starting element,
wherein the intermediate transmission arrangement comprises at least one drive-side cover plate that extends opposite to the radial direction with an axial play into a retaining area between the driven hub and a guide bush that adjoins the driven hub opposite to the axial direction,
whereby a movement of the drive-side cover plate one of into and opposite to the axial direction is inhibited.

2. The starting element according to claim 1 , wherein the tuned mass damper is arranged in an axial direction parallel to the axis of rotation between the torsional vibration damper and the turbine of the hydrodynamic coupling device.

3. The starting element according to claim 1 , wherein the first mechanical connection is located farther radially inward than the second mechanical connection.

4. The starting element according to claim 1 , wherein the output component of the torsional vibration damper is coupled with the output of the starting element via the first mechanical connection.

5. The starting element according to claim 1 , wherein an axial extension of the first mechanical connection at least partially overlaps with an axial extension of the second mechanical connection.

6. The starting element according to claim 1 ,
wherein a stop surface extends parallel to the drive-side cover plate at the driven hub in the retaining area,
wherein the stop surface forms a bearing for the drive-side cover plate.

7. The starting element according to claim 1 ,
wherein the intermediate transmission arrangement further comprises a driven-side cover plate arranged on the side of the drive-side cover plate axially opposed to the output component and connected to the drive-side cover plate,
wherein the driven-side cover plate extends opposite to the radial direction to the driven hub so as to be radially supported thereon.

8. The starting element according to claim 7 , wherein one of the at least one mass damper support element and the driven-side cover plate of the intermediate transmission arrangement is centered relative to the output.

9. The starting element according to claim 1 , wherein the first mechanical connection and the second mechanical connection are arranged radially inside of the second spring element arrangement.

10. The starting element according to claim 1 , wherein the driven hub has a fastening flange that extends in the radial direction and to which the turbine flange of the turbine is connected by the first mechanical connection.

11. The starting element according to claim 10 , wherein a pressure plate is arranged at a side of the turbine flange of the turbine opposite the fastening flange in the axial direction, the pressure plate extends opposite to the radial direction directly to the driven hub to be supported thereon.

12. The starting element according to claim 11 , wherein an axial play is provided between the pressure plate and the turbine flange.

13. The starting element according to claim 11 , wherein the pressure plate has a contact surface for a thrust bearing on the side remote of the turbine flange, the contact surface being formed as one of a race for a rolling element bearing and a sliding surface of a plain bearing.

14. The starting element according to claim 11 , wherein the pressure plate has one of a circumferential groove or a plurality of recesses on the side facing the turbine flange for receiving one of rivet heads and screw heads.

15. The starting element according to claim 11 , wherein the pressure plate is secured against rotation with respect to at least one of the driven hub and the turbine flange.

16. The starting element according to claim 1 , wherein the turbine flange of the turbine extends in axial direction substantially radially inside of the tuned mass damper to turbine blades of the turbine which are arranged in axial direction adjacent to the tuned mass damper.

17. The starting element according to claim 1 , wherein one of the at least one mass damper support element and the driven-side cover plate of the intermediate transmission arrangement is centered relative to the output.

18. The starting element according to claim 1 , wherein one of the at least one mass damper support element and the driven-side cover plate of the intermediate transmission arrangement is radially supported at the driven hub.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Mencher Georg
• Hammer Peter
• Cegar Stojan
• Fambach Ralph

Classifications

• F16F15/145

  Masses mounted with play with respect to driving means thus enabling free movement over a limited range · CPC title

• F16H2045/0263

  the damper comprising a pendulum · CPC title

• F16H2045/0284

  Multiple disk type lock-up clutch · CPC title

• F16H2045/0226

  comprising two or more vibration dampers · CPC title

• F16F15/13484 Primary

  acting on multiple sets of springs · CPC title