Automotive clutches
Smooth driving and precise shifting
The clutch is a fundamental part of a car that transmits torque from the engine to the wheels by coupling and disengaging two components: the friction disc and the flywheel. The friction disc connects to the gearbox shaft, and the flywheel connects to the engine crankshaft. When the driver presses the clutch pedal, the disc separates from the flywheel, interrupting power transmission. When the driver releases the pedal, the disc presses against the flywheel, resuming transmission. Main components Clutch disc Covered with friction material; connects to the engine flywheel. Transmits torque to the gearbox input shaft. Flywheel Metal disc attached to the crankshaft. Clutch contact pad. Hub or pressure plate Presses the disc against the flywheel, maintaining contact. Thrust bearing (collar) Pushes the pressure plate when the pedal is pressed. Clutch release mechanism (fork cylinder) Operated hydraulically or mechanically. Step-by-step operating diagram: Pedal pressed → the bearing pushes the plate → The plate separates from the flywheel → transmission is interrupted. Gear change completed → the pedal is released → The plate presses the plate again → transmission is re-established. Controlled friction → The plate material allows for gradual engagement → smooth driving. The clutch plays an essential role in smooth and efficient gear changes, adapting the engine torque to the wheel speed. It also prevents the engine from stalling when stopping or starting the car. The clutch is subject to a great deal of wear due to the friction between its components, so it is important to take care of it and avoid bad habits that could damage it. There are different types of clutches depending on their design, operation, or number of plates. The most common in cars are single-plate mechanical friction clutches, which are activated by a pedal connected to a cable or a hydraulic system. There are also automatic clutches, which do not require driver intervention to change gears, but rather do so through a hydraulic or electronic system that regulates the pressure on the disc. However, not all clutches are the same, and their quality and durability depend largely on the brand that manufactures them. Some of the main brands of clutches in cars are: - Sachs: This is a German brand that has been manufacturing clutches for all types of vehicles for over 100 years. Its products are characterized by their strength, reliability, and performance. Furthermore, they offer a wide range of clutches adapted to the needs of each driver and car. - Valeo: This is a French brand that also has a long history in the clutch sector. Its products are distinguished by their innovation, quality, and efficiency. Valeo has a variety of clutches, ranging from the most conventional to the most advanced, such as the dual-mass clutch or the piloted clutch. - Luk: This is another German brand that has been manufacturing clutches for over 50 years. Its products are based on technology, safety, and comfort. Luk offers solutions for all types of cars, from the smallest to the most powerful, and has special clutches for hybrid or electric vehicles.
