The generator is powered by the crankshaft through a V-belt drive. In this case, the rotor rotates in the stationary stator winding at approximately twice the speed relative to the motor.
The current flows through the excitation winding through the carbon brushes and slip rings. This creates a magnetic field.
The position of the magnetic field in relation to the stator winding is constantly changing, in accordance with the rotation of the rotor. This produces alternating current.
But the battery can only be charged with DC, so the rectifier on the diode board converts the AC to DC. The voltage regulator changes the value of the charge current by turning on and off the excitation winding, in accordance with the degree of charge of the battery. At the same time, the voltage regulator maintains a constant value of the operating voltage at a level of about 14 volts, regardless of the speed.
1 - Belt pulley
2 - Fan impeller
3 - Front of the body
4 - Drive bearing
5 - Lid
6 - Key
7 - Rotor
8 - Radial ball bearing rear
9 - Ring spring
10 - Stator
11- Diode board
12 - Back of the body
13 - Voltage regulator
14 - Set of carbon brushes