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To ensure that the engine runs evenly, a large moulding body – the flywheel – is attached to the crankshaft. It stores kinetic energy temporarily and releases it again evenly. A ring gear is attached to the flywheel for starting the engine. A side of the flywheel forms the friction couple surface with the clutch disk. In the centre of the flywheel is the pilot bearing for the transmission shaft.
Dual Mass Flywheel
Particularly at low speeds, the unavoidable vibrations caused in a vehicle are detected mainly as rattling and humming. As early as the 1980s, LuK developed the dual mass flywheel as a completely technical innovation to combat these symptoms. Today, it is used in one in every four European vehicles and LuK supplies more than 20 vehicle manufacturers.
The dual mass flywheel fulfils two tasks. It holds the gear ring for starting the engine and damps the entire drive chain. The disc flywheel is separated into two masses which can be turned against each other up to 120° via a bearing. The two decoupled masses are connected via an efficient damping spring system. This not only helps to avoid noise, but also enables comfortable driving at low speeds in order to reduce fuel consumption.
Damped Flywheel Clutch (DFC)
The DFC is an upgrade of the dual mass flywheel. The clutch disc, clutch assembly and the crankshaft screws are already built in. All this combined creates an extremely compact module, which makes assembly significantly easier.
Commercial vehicle -flywheel
The commercial vehicle flywheel forms part of the original equipment and ensures quiet running, including in vehicles such as IVECO, MAN, Mercedes-Benz and Scania. It is made from massive grey cast iron and enables the override of the dead point on the piston end positions in the cylinder. This guarantees an even rotary motion with a correspondingly quiet and material-friendly engine run.
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