Dual mass flywheel

Abstract

A dual mass flywheel includes: a primary flywheel having a ring gear and connected to an output shaft of an engine; a secondary flywheel connected to an input shaft of a transmission; a coupling unit for coupling the primary flywheel and the secondary flywheel; a plurality of drive units coupled to the primary flywheel and the secondary flywheel and in which spring guides are coupled to opposite sides of a torsion spring to dampen noise and vibrations while a torque of the primary flywheel is transferred to the secondary flywheel, a unit groove formed in the primary flywheel to accommodate the drive units; separation prevention bosses formed above and below a center line of the unit groove and having an operation slot therebetween to prevent deviation of the drive units; and driving pins protruding from a bottom surface of the secondary flywheel to compress and damp the drive units, wherein a linear spring and a curved spring of a torsion spring are combined between an end guide and a middle guide or between the middle guides to prevent a contacting point thereof from being pushed to the outside by a centrifugal force when the drive unit is operated.

Description

technical field [0001] The present invention relates to dual mass flywheels, and more particularly to an improved dual mass flywheel which effectively attenuates the shock and noise generated in the process of transmitting the power of the engine to the transmission and at the same time does not results in a loss of torque and has a simpler construction due to the reduced number of parts. Background technique [0002] Dual-mass flywheels (DMF) for vehicles are adapted to dampen the motion caused by the damped operation of the arc springs when the drive plate connecting the primary and secondary flywheels moves in combination with the arc springs mounted to the main mass Shock between the engine and transmission, thereby reducing vibration and noise caused by sudden acceleration of the vehicle, such as gear noise and body roar. [0003] If the driving force of the engine is transmitted to the main mass due to the above-mentioned technical configuration, the driving plate als...

AI Technical Summary

Problems solved by technology

[0014] In addition, since the spring held by the spring guide uses only a linear coil spring, it is impossible to absorb various noises and vibrations, and the spring guide surrounds the outside of the spring, so the spring cannot be held stably and securely

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