Torsional vibration damping arrangement, in particular for the powertrain of a vehicle

Patent metadata

Field	Value
Publication number	US-9765839-B2
Application number	US-201314400126-A
Country	US
Kind code	B2
Filing date	Apr 15, 2013
Priority date	May 11, 2012
Publication date	Sep 19, 2017
Grant date	Sep 19, 2017

Abstract

A torsional vibration damping arrangement comprises an input region to be driven in rotation around an axis of rotation and an output region and a first torque transmission path and parallel thereto a second torque transmission path, both of which proceed from the input region, and a coupling arrangement for superposing the torques conducted via the torque transmission paths, which coupling arrangement communicates with the output region, a phase shifter arrangement for the first torque transmission path for generating a phase shift of rotational irregularities conducted via the first torque transmission path relative to rotational irregularities conducted via the second torque transmission path, and a pendulum mass in the phase shifter arrangement and/or in the coupling arrangement.

First claim

What is claimed is:

1. A torsional vibration damping arrangement ( 10 ), comprising:
an input region ( 50 ) to be driven in rotation around an axis of rotation (A);
an output region ( 60 );
a first torque transmission path ( 55 ) and parallel thereto a second torque transmission path ( 56 ), both the first and second torque transmission paths proceeding from the input region ( 50 );
a coupling arrangement ( 61 ) for superposing the torques conducted via the torque transmission paths ( 55 ; 56 ), the coupling arrangement ( 61 ) communicating with the output region ( 60 );
a phase shifter arrangement ( 65 ) for the first torque transmission path ( 55 ) for generating a phase shift of rotational irregularities conducted via the first torque transmission path ( 55 ) relative to rotational irregularities conducted via the second torque transmission path ( 56 );
a pendulum mass ( 16 ) constructed such that the pendulum mass displaces relative to a carrier element under the influence of a torsional irregularity; and
additionally comprising a primary mass ( 1 ) formed by an engine-side housing shell and a cover plate ( 2 ) formed by a transmission-side housing shell connected to the primary mass ( 1 ) so as to be fixed with respect to rotation relative to the primary mass ( 1 ), the primary mass ( 1 ) and cover plate ( 2 ) fixedly connected radially outwardly relative to the phase shifter arrangement ( 65 ) and forming an enclosure for the phase shifter arrangement ( 65 ); and wherein the pendulum mass ( 16 ) is connected with the primary mass ( 1 ) and/or with the cover plate ( 2 ).

2. The torsional vibration damping arrangement ( 10 ) according to claim 1 , wherein the coupling arrangement ( 61 ) comprises:
a first input portion ( 70 ), a second input portion ( 71 ); a superposition unit ( 75 ) and an output portion ( 77 ), wherein the first input portion ( 70 ) is connected to the phase shifter arrangement ( 65 ) and superposition unit ( 75 ), and the second input portion ( 71 ) is connected to the input region ( 50 ) and superposition unit ( 75 ), and the superposition unit ( 75 ) is connected to the first input portion ( 70 ), second input portion ( 71 ) and output portion ( 77 ), and wherein the output portion ( 77 ) forms the output region ( 60 ).

3. The torsional vibration damping arrangement ( 10 ) according to claim 1 , wherein the phase shifter arrangement ( 65 ) comprises a vibrational system ( 51 ) having an intermediate mass ( 3 ) which is rotatable with respect to the primary mass ( 1 ) around the axis of rotation (A) against the action of a spring arrangement.

4. The torsional vibration damping arrangement ( 10 ) according to claim 2 , wherein the pendulum mass ( 16 ) is coupled in the coupling arrangement ( 61 ) with the first input portion ( 70 ) or with the second input portion ( 71 ) or with the output portion ( 77 ).

5. The torsional vibration damping arrangement ( 10 ) according to claim 3 , wherein the pendulum mass ( 16 ) is coupled in the coupling arrangement ( 61 ) with the first input portion ( 70 ) or with the second input portion ( 71 ) or with the output portion ( 77 ).

Assignees

• Lorenz Daniel
• Hoffelner Ingrid
• Zahnradfabrik Friedrichshafen

Inventors

• Lorenz Daniel
• Hoffelner Ingrid

Classifications

• F16F7/116 Primary

  on metal springs · CPC title

• F16F15/145

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

• F16F15/14

  using masses freely rotating with the system, {i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers (compensation of inertia forces F16F15/22; weights for balancing rotating bodies F16F15/32)} · CPC title

• F16F15/1206 Primary

  with a planetary gear system · CPC title

• F16F15/13157

  with a kinematic mechanism or gear system, e.g. planetary (F16F15/13128 takes precedence) · CPC title