Apparatus for damping vibrations
AssigneeLuk Lamellen und Kupplungsbau GmbH
InventorWolfgang Reik
Life of this patent
Estimating the term…
Abstract
Vibrations of the camshaft or crankshaft of a combustion engine are damped between a composite pulley which receives torque from the engine and one or more sheaves which are driven by an endless flexible member and serve to transmit torque to a pump, a blower, a compressor, a steering wheel mechanism and/or an alternator. The endless flexible member exhibits a certain amount of elasticity and the composite pulley comprises a rotary input device which is driven by the engine and a hollow rotary wheel which has a circular radially inner portion in rolling contact with the periphery of the input device. The outer diameter of the input device is smaller than the inner diameter of the wheel. The latter performs pendulum movements in response to changes in the length of the elastic flexible member.
Claims30
Apparatus for absorbing vibrations of a rotary input device which drives at least one endless transmission member and has a circular peripheral portion, comprising:
- a hollow torque transmitting element having a circular radially outer portion, said at least one member being trained over said outer portion;
- said element further having a circular radially inner portion eccentric with reference to, spacedly surrounding and including a part in rolling contact with said peripheral portion;
- and
- said element being free to perform pendulum movements relative to said device about a roving axis at said part of said inner portion.
Dependencies are inferred from the claim text.