A clutch that transmit power via fluid as an intermediary. This coupling is called fluid coupling, where the two shafts there are no mechanical connections. Fluid coupling is suitable for transmitting high speed and great power. advantage of this coupling is that the vibrations from the driving side and the collision of the load side are not mutually forwarded. Thus the loadings are, first movers will not be affected by the moments that exceed the limits.
Figure 3:49 Bagan fluid coupling
Life of the engine and connected equipment will be longer than the user tetapbiasa clutch shaft diameters can also be taken smaller. startdapat done much easier and speeding up can take place smoothly, because the clutch can be adjusted such that the prime movers played first until it reaches its maximum torque and only after that moment passed on to the shaft in motion.
If some of the fluid coupling is used to connect several prime movers simultaneously, distribution of the load evenly among the machines of the prime movers can be obtained easily. Prime movers commonly used is an induction motor. This motorcycle was listed on two types according to the rotor, namely: motors with windings, and a rotor motor with sangkarpada. cage rotor can be divided into rotor thought squirrels (squirrel cage), and a special squirrel cage.
There is also a fluid coupling with oil storage oil flow in the circuit, as well as the twin clutch merup [will join between two circuit fluid coupling with separate oil flow.
Figure 3:50 Various fluid coupling
The moment passed controlled by adjusting the amount of oil in the circuit, and at the last clutch control is done by blocking a portion of the fluid flow plate sirkirt barrier. The last way is used padakopling with large capacity and high-cycle engines. Disturbances in the clutch system relative kecil.salah the adjustment is done only on the free movement of the clutch. when the clutch pedal labor movement has been too deep, check the clutch disc, if it is too thin, replace the clutch disc.