The generator operates from the crankshaft via a V-belt drive. The rotor rotates in the stationary stator winding at approximately double the speed of the engine.
Current flows through the excitation winding via carbon brushes and slip rings, creating a magnetic field.
The position of the magnetic field relative to the stator winding is constantly changing, in accordance with the rotation of the rotor. Due to this, alternating current is produced.
But the battery can only be charged with direct current, so the rectifier on the diode board converts alternating current into direct current. The voltage regulator changes the value of the charging current by switching the excitation winding on and off, in accordance with the state of charge of the battery. At the same time, the voltage regulator maintains a constant value of the operating voltage at about 14 volts, regardless of the number of revolutions.
1 - Belt pulley
2 - Fan impeller
3 - Front of the body
4 - Drive bearing
5 - Lid
6 - Key
7 - Rotor
8 - Rear radial ball bearing
9 - Ring spring
10 - Stator
11- Diode board
12 - Back of the case
13 - Voltage regulator
14 - Carbon brush set
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