A damper device includes an input element to which a torque from an engine is transmitted, an output element, an elastic body arranged to transmit a torque between the input element and the output element, and a rotary inertia mass damper that includes a planetary gear that includes a sun gear arranged to rotate integrally with one element of the input element and the output element, a carrier that rotatably supports a plurality of pinion gears and is arranged to rotate integrally with the other element of the input element and the output element, and a ring gear that meshes with the plurality of pinion gears and works as a mass body. The other element includes two plate members that are opposed to each other and coupled with each other by means of a plurality of rivets disposed between the pinion gears.

A damper device includes rotating elements including an input element and an output element, first elastic bodies that each transmit torque between the input element and the output element, a plurality of second elastic bodies that act in parallel with the plurality of first elastic bodies when torque transmitted between the input element and the output element is greater than or equal to a predetermined value, and a rotary inertia mass damper. The rotary inertia mass damper includes a sun gear, a carrier that rotatably supports a plurality of pinion gears, and a ring gear that meshes with the plurality of pinion gears and that serves as a mass body. The plurality of second elastic bodies are located at a different position than the plurality of first elastic bodies in a radial direction of the rotating elements and are circumferentially aligned with the plurality of pinion gears.

A damper device including an input element and an output element; an elastic body transmitting torque between the input element and the output element; and a rotary inertia mass damper having a mass body. The rotary inertia mass damper includes a sun gear, a carrier rotatably supporting pinion gears, and a ring gear that meshes with the pinion gears and serving as the mass body. A pair of washers is located on both sides of each pinion gear axially. The ring gear includes an annulus gear having internal teeth meshing with the pinion gears and a weight body fixed to the annulus gear such that the weight body is in contact with a side surface of the annulus gear. An inner circumferential surface of the weight body is supported in a radial direction by a tip of the pinion gear or an outer circumferential surface of the washer.

A torque converter that is downsized in an axial direction utilizing existing space is provided. A pump impeller, a turbine runner, a lockup clutch, an elastic damper, and a planetary unit are held in a housing. A torsional vibration damping device is arranged concentrically with the lockup clutch. An input element is arranged concentrically with the lockup clutch while being connected to the lockup clutch and a drive member. An output element is connected to a driven member.

A torsional vibration damper having enhanced damping performance is provided. A first gear held in the holding member includes a first engagement member situated in an opposite side of a fluid coupling and a second engagement member situated between a holding member and the fluid coupling. A second gear is meshed with the first engagement member, and a third gear is meshed with the second engagement member. The second gear is integrated with the input member, the third gear is integrated with the inertial mass, and the holding member is integrated with the output member.

Presented are torque converters (TC) with planetary-type vibration dampers, methods for making/using such TC assemblies, and vehicles equipped with such TC assemblies. A TC assembly includes a TC housing drivingly connected to a prime mover to receive torque therefrom, and a TC output member drivingly connected to a transmission to transfer torque thereto. Rotatably mounted within an internal fluid chamber of the TC housing are juxtaposed turbine and impeller blades. The impeller blades are rotatably mounted to the housing. A TC clutch is operable to lock the TC housing to the TC output member. A torsional vibration damper, which is disposed within the internal fluid chamber, includes a sun gear attached to the TC output member for unitary rotation, a ring gear attached to the TC clutch for unitary rotation, and a planet carrier intermeshed with the ring and sun gears and attached to the turbine blades for unitary rotation.

A torsional vibration damping arrangement, having an input region and an output region. There is provided between the input and output region a first torque transmission path and, a parallel second torque transmission path and a coupling arrangement for superposing the torques. A phase shifter arrangement in the first torque transmission path generates a phase shift of rotational irregularities. The phase shifter arrangement is a preassembled unit having at least a first connection point and second connection points, and the coupling arrangement is a preassembled unit having a first connection point corresponding to the phase shifter first connection point assembly unit and a second connection point corresponding to the phase shifter arrangement second connection point. The connection points of the phase shifter assembly unit are axially joined to the connection points of the coupling arrangement assembly unit during an assembly of the phase shifter assembly.

A torsional vibration damping arrangement includes: an input region, an output region, and a coupling arrangement communicating with the output region. A phase shifter arrangement communicates with the input region. A torque transmission path extending between the input region and the output region transmits a total torque. The torque transmission path is divided into first and second torque transmission paths, which paths are guided back together again at the coupling arrangement. An input torsional vibration is divided into two torsional vibration components by being conducted respectively via the first and second torque transmission paths and are destructively superimposed at the coupling arrangement to form a minimized output torsional vibration relative to the input torsional vibration. A planet wheel carrier is constructed as a modular building block planet carrier element and includes at least a first connection area.

A torsional vibration damper that damps torsional vibration effectively in a low-speed range. In the torsional vibration damper, a spring holder is formed by apertures of an input element and an output element, and an elastic member is held in the spring holder. A first moveable range of a planetary element extending from an initial position in a drive direction is wider than a second movable range of the planetary element extending from the initial position in a counter direction.

A torsional vibration damping arrangement has an input region with a primary mass driven in rotation around an axis of rotation, and an output region. A first and a second parallel torque transmission paths (48), and a coupling arrangement having a planetary gear unit with a planet wheel element for superimposing the torques guided via the torque transmission paths are provided between the input region and the output region. A phase shifter arrangement with a first stiffness is provided in the first torque transmission path for generating a phase shift of rotational irregularities relative to rotational irregularities guided via the second torque transmission path. The phase shifter arrangement has a second stiffness supported on the one hand relative to the primary mass arranged so as to be at least partially axially and radially overlapping with respect to the planet wheel element.