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A multi-plate clutch consists of several friction plates arranged concentrically. In some cases, it is used instead of a larger diameter clutch. Drag racing cars use multi-plate clutches to control the rate of power transfer to the wheels as the vehicle accelerates from a standing start.
Instead of a standard large dry single-plate clutch, each clutch pack for the six-speed DSG is a collection of four small wet interleaved clutch plates (similar to a motorcycle wet multi-plate clutch). Due to space constraints, the two clutch assemblies are concentric, and the shafts within the gearbox are hollow and also concentric. [4]
The Multitronic system uses a link-plate chain drive, [2] an oil-cooled multi-plate clutch [2] (initially of six parts, [2] later of seven to enable it to cope better with the high torque outputs of larger turbodiesel engines), and complex electronics, to overcome the traditional shortcomings of CVTs, [2] and allow a CVT transmission to be ...
Manual control of the multi-plate clutch systems via a lever behind the steering wheel is used to launch the cars. DTM currently uses a Hewland DTT-200 6-speed sequential transmission with steering-wheel-mounted shift paddles, which was introduced for the 2012 season with the new rule change.
The plates may be quite thin, around a millimeter thick. The conical pulleys have radial grooves. A groove on one side of the pulley is met with a ridge on the other side and so the sliding plates are pushed back and forth to conform to the pattern, effectively forming teeth of the correct pitch when squeezed between the pulleys.
The clutch pedal controls the pressure plate (clutch engaged – the clutch pedal is not being pressed) or not connected to the engine (clutch disengaged – the clutch pedal is being pressed down). When the engine is running and the clutch is engaged (i.e., clutch pedal up), the flywheel spins the clutch pressure plate and hence the transmission.
Hele-Shaw clutch, sectioned A single pair of plates of the Hele Shaw clutch Section through a stack of plates . The Hele-Shaw clutch was an early form of multi-plate wet clutch, in use around 1900. It was named after its inventor, Professor Henry Selby Hele-Shaw, who was noted for his work in viscosity and flows through small gaps between ...
Clutch control refers to the act of controlling the speed of a vehicle with a manual transmission by partially engaging the clutch plate, using the clutch pedal instead of (or in conjunction with) the accelerator pedal. The purpose of a clutch is in part to allow such control; in particular, a clutch provides transfer of torque between shafts ...