How many states of electromagentic clutch?

The main components of the electromagnetic clutch friction plates inside, it is divided into active and passive friction plate friction plates. Active friction plate gear with the engine crankshaft via fused; passive friction plates also through the driving wheel gear and gearbox piece. General electromagnetic clutch has a multi-chip multi-chip active passive friction plates and friction plates, two concentric circles, from the placement (one active, one passive, and then an active, then a passive) together. 

 
1, the third state is the half-engaged state (half-linked state), in this state, the active and passive friction plate friction piece is neither fully engaged nor fully separated, half off the power transmission in a semi-continuous state.

2, the first state is a combination of state, namely active and passive friction plate friction plates under combined action of the spring and plate together, then the power from the engine is transmitted to the gearbox;

3, the second state is a whole separate state, that when we Woxia clutch lever, the original pressure acting on the active and passive friction plate is released, active and passive friction plate friction plates separated by a combination of state to the state, active friction plates with the engine rpm, passive friction plates turn with the drive shaft of the transmission, power transmission was cut off.