SACHS CLUTCH DUAL MASS FLYWHEE
Manufacturing part number 2294 000 994

A dual mass flywheel in a car is an essential component of the drivetrain system that helps in minimizing vibrations and enhancing the smooth operation of the engine. It consists of two flywheels - the primary or engine side flywheel and the secondary or transmission side flywheel. These flywheels are connected to each other via a series of springs or dampers.

The primary function of a dual mass flywheel is to act as a torsional vibration damper. When the engine is running, it generates vibrations and oscillations due to the combustion process. These vibrations can be transferred to the drivetrain and cause discomfort, noise, and wear on various components. However, the dual mass flywheel absorbs and dampens these vibrations by allowing the two flywheels to rotate at slightly different speeds, absorbing and distributing the energy. This helps in reducing the transmitted vibrations to the transmission system, resulting in smoother and quieter operation of the engine.

In addition to vibration damping, a dual mass flywheel also enhances the driving experience by providing smoother gear shifting. It helps in isolating the transmission system from sudden torque fluctuations, especially during clutch engagement or when changing gears. By absorbing the sudden changes in torque, the dual mass flywheel prevents drivetrain shock and provides a smoother transition of power, resulting in improved vehicle control and reduced wear on the transmission components. Overall, a dual mass flywheel plays a critical role in enhancing the driving comfort and prolonging the lifespan of different drivetrain components in a car.