A centrifugal pendulum absorber for a torque converter is provided. The centrifugal pendulum absorber includes a center plate; a roller received in a roller slot formed in the center plate; and a first mass on a rear axial side of the center plate and a second mass on a front axial side of the center plate. The first and second masses are slidable with respect to the center plate along the slot roller. The first mass includes a first radially extending section and a first axial protrusion extending axially past a rear-side axial surface of the first radially extending section. The second mass includes a second radially extending section and a second axial protrusion extending axially past a front-side axial surface of the second radially extending section. A torque converter and a method of forming a centrifugal pendulum absorber are also provided.

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 system and method for compensating for torque reaction forces in a medical, apparatus is disclosed. The astern may include a rotary element which rotates about an axis. A contra-rotating flywheel may be driven to rotate about the axis relative to the rotary element, wherein the flywheel is free to rotate and is accelerated and decelerated by a driver which is fixed to the rotary element. Contra-rotation of the flywheel may compensate for torque reaction forces when the rotary element is accelerated or decelerated.

A system and method for compensating for torque reaction forces in a medical, apparatus is disclosed. The astern may include a rotary element which rotates about an axis. A contra-rotating flywheel may be driven to rotate about the axis relative to the rotary element, wherein the flywheel is free to rotate and is accelerated and decelerated by a driver which is fixed to the rotary element. Contra-rotation of the flywheel may compensate for torque reaction forces when the rotary element is accelerated or decelerated.

A vehicle vibration reducing apparatus includes: an inertial mass body; a first engagement device that is switched between a state where a running power source engages with a damper of a power transmission device so as to enable power transmission and a state where the engagement is released; a second engagement device that is switched between a state where the power transmission device engages with the inertial mass body so as to enable power transmission in a power transmission pass different from that of the first engagement device and a state where the engagement is released; and a third engagement device that is switched between a state where the running power source engages with the inertial mass body so as to enable power transmission in a power transmission path different from those of the first engagement device and the second engagement device and a state where the engagement is released.

A vehicle vibration reducing apparatus includes: an inertial mass body; a first engagement device that is switched between a state where a running power source engages with a damper of a power transmission device so as to enable power transmission and a state where the engagement is released; a second engagement device that is switched between a state where the power transmission device engages with the inertial mass body so as to enable power transmission in a power transmission pass different from that of the first engagement device and a state where the engagement is released; and a third engagement device that is switched between a state where the running power source engages with the inertial mass body so as to enable power transmission in a power transmission path different from those of the first engagement device and the second engagement device and a state where the engagement is released.

A flexplate assembly (26) for use in a starting system (31) for translating rotational torque between an engine and a transmission includes a drive assembly (28) adapted to be attached to the engine and the transmission for translating rotational torque therebetween. The flexplate assembly (26) also includes a ring assembly (30) having a ring gear (32) adapted to permanently engage a pinion gear (24) of a starter motor (22) of the starting system (31). The ring assembly (30) rotates with the drive assembly (28) in response to rotational torque generated by the pinion gear (24) of the starter motor (22). The drive assembly (28) disengages from the ring assembly (30) in response to rotational torque generated by the engine.

A flexplate assembly (26) for use in a starting system (31) for translating rotational torque between an engine and a transmission includes a drive assembly (28) adapted to be attached to the engine and the transmission for translating rotational torque therebetween. The flexplate assembly (26) also includes a ring assembly (30) having a ring gear (32) adapted to permanently engage a pinion gear (24) of a starter motor (22) of the starting system (31). The ring assembly (30) rotates with the drive assembly (28) in response to rotational torque generated by the pinion gear (24) of the starter motor (22). The drive assembly (28) disengages from the ring assembly (30) in response to rotational torque generated by the engine.

A mechanical converter of irregular bi-directional motion into continuous and consistent single direction motion through a system of gears, drive shafts, freewheels, and flywheel. The system works by transforming circular movement, both clockwise and counterclockwise from the input shaft into continuous rotation of an output shaft through the use of a pair of free wheels solidly connected to the input shaft which transfers the alternating motion, depending on the rotation of the input shaft, to two parallel secondary shafts.