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A flywheel device with a torsional damper including a driving side flywheel and a driven side flywheel, a first spring mechanism directly connecting the driving and driven side flywheels, and a second spring mechanism connecting the driving and driven side flywheels via a friction mechanism. The sec

A flywheel device with a torsional damper including a driving side flywheel and a driven side flywheel, a first spring mechanism directly connecting the driving and driven side flywheels, and a second spring mechanism connecting the driving and driven side flywheels via a friction mechanism. The second spring mechanism and the friction mechanism are arranged in series with each other and the series combination of the second mechanism and the friction mechanism is arranged in parallel to the first spring mechanism. The first spring mechanism includes at least one combination of two springs arranged in series with each other. The two springs have a different spring constant or a different maximum angular stroke. Thus, a spring constant of the first spring mechanism changes at a predetermined torsional angle whereby a torque capacity of the flywheel is greatly increased.

대표청구항 ▼

A flywheel device with a torsional damper comprising: a driving side flywheel; a driven side flywheel arranged coaxially with respect to the driving side flywheel and rotatable relative to the driving side flywheel; a first spring mechanism directly connecting the driving and driven side flywheels,

A flywheel device with a torsional damper comprising: a driving side flywheel; a driven side flywheel arranged coaxially with respect to the driving side flywheel and rotatable relative to the driving side flywheel; a first spring mechanism directly connecting the driving and driven side flywheels, the first spring mechanism including at least one combination of two springs which are arranged in series with each other as a spring arrangement and which are operatively related to each other so that when a torsional angle between the driving and driven side flywheels increases, both of the two springs in combination operate up to a predetermined torsional angle and only one of the two springs in combination operates above the predetermined torsional angle; and a second spring mechanism connecting the driving and driven side flywheels via a friction mechanism which is arranged in series with the second spring mechanism as a vibrational system, the series combination of the second spring mechanism and the friction mechanism being arranged in parallel to the first spring mechanism as a vibrational system.