The invention relates to a mass-decoupling device for a motor vehicle, having: a mass-receiving element (10) and a mass object (11) accommodated therein, which mass-receiving element (10) and mass object (11) are point symmetrically formed and mounted opposite a body (36) of the motor vehicle; at least one guide means (13) that moveably mounts the mass-receiving element (10) and the mass object (11) accommodated therein along a longitudinal axis (L) of the vehicle; decoupling means (14) designed to decouple the mass-receiving element (10) and the mass object (11) accommodated therein from the body (36) of the motor vehicle; first energy-receiving means (15) designed to transmit kinetic energy of a movement of the mass-receiving element (10) and the mass object (11) accommodated therein to the body (36) of the motor vehicle in a predetermined time interval, said movement occurring along the longitudinal axis (L) of the vehicle, from a first position (P1) to a second position (P2); and second energy receiving means (16) designed to convert, at least partially, the kinetic energy of the movement of the mass-receiving element (10) and the mass object (11) accommodated therein along the longitudinal axis (L) of the vehicle into kinetic energy of a rotation of the mass object (11). The invention also relates to a corresponding method for decoupling mass for a motor vehicle.

A flywheel assembly, including a cylinder including a first end and a second end, a first piston non-rotatably connected to the cylinder, the first piston being slidably engaged in the cylinder proximate the first end, a first biasing element operatively arranged in the cylinder to bias the first piston in a first axial direction, a first arm non-rotatably connected to the first piston, a second arm non-rotatably connected to the first piston, a first mass connected to the first arm, and a second mass connected to the second arm.

A flywheel assembly, including a cylinder including a first end and a second end, a first piston non-rotatably connected to the cylinder, the first piston being slidably engaged in the cylinder proximate the first end, a first biasing element operatively arranged in the cylinder to bias the first piston in a first axial direction, a first arm non-rotatably connected to the first piston, a second arm non-rotatably connected to the first piston, a first mass connected to the first arm, and a second mass connected to the second arm.

A vibration damping device including a supporting member rotating with a rotation element around a rotation center of the rotation element; a restoring force generation member coupled to the supporting member to transfer torque to and from the supporting member and configured to swing with rotation of the supporting member; and an inertia mass body coupled to the supporting member via the restoring force generation member and swinging around the rotation center with the restoring force generation member with rotation of the supporting member, in which the restoring force generation member swings around a swing center so that a relative position with respect to the inertia mass body does not change, and a distance between a center of gravity of the restoring force generation member and the swing center changes with a change in a swing angle of the restoring force generation member with respect to the inertia mass body.

A vibration damping device including a supporting member rotating with a rotation element around a rotation center of the rotation element; a restoring force generation member coupled to the supporting member to transfer torque to and from the supporting member and configured to swing with rotation of the supporting member; and an inertia mass body coupled to the supporting member via the restoring force generation member and swinging around the rotation center with the restoring force generation member with rotation of the supporting member, in which the restoring force generation member swings around a swing center so that a relative position with respect to the inertia mass body does not change, and a distance between a center of gravity of the restoring force generation member and the swing center changes with a change in a swing angle of the restoring force generation member with respect to the inertia mass body.

A variable inertia flywheel having revolute joint assemblies, a roller guide, a first actuator and a second actuator. The revolute joint assemblies are in engagement with a primary mover and include a first member, a second member and a roller. The roller guide is disposed about the revolute joint assemblies. An inner surface of the roller guide is in contact with the rollers and defines cam profiles that cause the rollers to extend and contract, creating a torque disturbance opposed to a primary mover torque ripple. The first actuator is in engagement with the roller guide and moves the roller guide, changing the amplitude and/or the phase angle of the torque ripple. The second actuator is in engagement with the roller guide and rotates the roller guide, changing the phase angle of the torque ripple.

A variable inertia flywheel having revolute joint assemblies, a roller guide, a first actuator and a second actuator. The revolute joint assemblies are in engagement with a primary mover and include a first member, a second member and a roller. The roller guide is disposed about the revolute joint assemblies. An inner surface of the roller guide is in contact with the rollers and defines cam profiles that cause the rollers to extend and contract, creating a torque disturbance opposed to a primary mover torque ripple. The first actuator is in engagement with the roller guide and moves the roller guide, changing the amplitude and/or the phase angle of the torque ripple. The second actuator is in engagement with the roller guide and rotates the roller guide, changing the phase angle of the torque ripple.

A vibration absorber which, in addition to a main mass which is fixed thereto and moved along a curved trajectory by a driving mechanism, comprises a substantially smaller variably adjustable rotating flywheel mass which is moved together with the main mass along the trajectory thereof, enabling the adjustment of the frequency of the absorber. The rotating flywheel mass is driven by a novel belt device independently of the driving mechanism. A rotating vibration absorber which, along with the main mass and the rotating flywheel mass, comprises its own damping unit, such as an eddy-current damping unit.

A vibration absorber which, in addition to a main mass which is fixed thereto and moved along a curved trajectory by a driving mechanism, comprises a substantially smaller variably adjustable rotating flywheel mass which is moved together with the main mass along the trajectory thereof, enabling the adjustment of the frequency of the absorber. The rotating flywheel mass is driven by a novel belt device independently of the driving mechanism. A rotating vibration absorber which, along with the main mass and the rotating flywheel mass, comprises its own damping unit, such as an eddy-current damping unit.

A flywheel for example to a sport training or a rehabilitation machine, is linked to a hauling cable through a system of pulleys, including, in a well-known way, at least a disk-shaped part (4) rotating about a central axis (5) and incorporates a series of weights (6) that, depending on their distribution and their own weight provide a given moment of inertia. Starting from this already known configuration, the flywheel (1) is distinguished in that it has a moving coupling means (7) that allows the variation of the position of the weights (6) on the disk (4) of the wheel and to modify the moment of inertia, without it being necessary to withdraw or replace any of the weights (6) or the disk (4).