| 摘要 |
A torsional damper type flywheel device including drive side and driven side flywheels, a first spring mechanism connecting the drive side and driven side flywheels, a second spring mechanism which may include an air cushion spring, and a viscous damping mechanism arranged in series with the second spring mechanism. The series combination of the second spring mechanism and the viscous damping mechanism is arranged parallel to the first spring mechanism and connects the drive side and driven side flywheels. This flywheel device continuously changes its vibrational behavior between two characteristics due to the action of the viscous damping mechanism. Due to the vibrational behavior change, no notable resonance occurs when the rotational speed passes through the resonance speed of the flywheel device. Also, since a continuously sliding friction mechanism is not used, its speed variation and torque variation absorbing effect is greatly improved at the standard range of engine speeds.
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