US 2007/0191118 A1 · Torque fluctuation absorbing apparatus

Abstract

A torque fluctuation absorbing apparatus provided between a driving source and a transmission and transmitting torque from the driving source to the transmission, the apparatus absorbing fluctuations in the torque and limiting a maximum value of the torque, the apparatus includes a flywheel, a supporting member, a first plate having a sliding surface, a second plate having a sliding surface, a disc spring supported by the supporting member and biasing one of the first and second plates towards the other one thereof, a friction material sandwiched tightly between the sliding surface of the first plate and the sliding surface of the second plate, a damper mechanism connected to the friction material and transmitting the torque from the driving source to an input shaft of the transmission, and a cover member demarcating the sliding surfaces of the first and second plates from an exterior of the torque fluctuation absorbing apparatus.

Claims18

Dependent claims

A torque fluctuation absorbing apparatus provided between a driving source and a transmission and transmitting torque from the driving source to the transmission, the apparatus further absorbing fluctuations in the torque transmitted and limiting a maximum value of torque to be transmitted to the transmission, the apparatus comprising:

a flywheel connected with a driving shaft of the driving source;
a supporting member unitarily rotating with the flywheel;
a first plate having a sliding surface;
a second plate having a sliding surface;
a disc spring supported by the supporting member and biasing one of the first and second plates towards the other one thereof;
a friction material sandwiched tightly between the sliding surface of the first plate and the sliding surface of the second plate;
a damper mechanism connected to the friction material and transmitting the torque transmitted from the driving source to an input shaft of the transmission;
and
a cover member covering the sliding surfaces of the first and second plates from an exterior of the torque fluctuation absorbing apparatus.

6 more elements

A torque fluctuation absorbing apparatus provided between a driving source and a transmission and transmitting torque from the driving source to the transmission, the apparatus further absorbing fluctuations in the toque transmitted and limiting a maximum value of the toque to be transmitted to the transmission, the apparatus comprising:

a flywheel connected with a driving shaft of the driving source;
a supporting member unitarily rotating with the flywheel;
a first plate having a sliding surface;
a second plate having a sliding surface;
a disc spring supported by the supporting member and biasing one of the first and second plates towards the other one thereof;
a friction material sandwiched tightly between the sliding surface of the first plate and the sliding surface of the second plate;
a damper mechanism connected to the friction material and transmitting the torque transmitted from the driving source to an input shaft of the transmission;
wherein a limit toque value, at which a relative rotation between the friction material and each first and second plate starts against frictional force between the friction material and each first and second plate, is set to a value ranging from 0.7 to 1.4 times larger than the maximum value of torque generated by the driving source.

5 more elements

Dependencies are inferred from the claim text.

Torque fluctuation absorbing apparatus

Life of this patent

Torque fluctuation absorbing apparatus

Life of this patent

Abstract

Claims18