105952-1870 ZEXEL 9 420 611 887 BOSCH ACTUATOR 9420611887 1059521870 1157709120

Charging System Components
Alternators
3T6352 Alternator
3T6352 Alternator
(1) Regulator. (2) Roller bearing. (3) Stator winding. (4) Ball bearing. (5) Rectifier bridge. (6) Field winding. (7) Rotor assembly. (8) Fan.The alternator is driven by V-belts from the crankshaft pulley. This alternator is a three phase, self-rectifying charging unit, and the regulator is part of the alternator.This alternator design has no need for slip rings or brushes, and the only part that has movement is the rotor assembly. All conductors that carry current are stationary. The conductors are: the field winding, stator windings, six rectifying diodes and the regulator circuit components.The rotor assembly has many magnetic poles like fingers with air space between each opposite pole. The poles have residual magnetism (like permanent magnets) that produce a small amount of magnet-like lines of force (magnetic field) between the poles. As the rotor assembly begins to turn between the field winding and the stator windings, a small amount of alternating current (AC) is produced in the stator windings from the small magnetic lines of force made by the residual magnetism of the poles. This AC current is changed to direct current (DC) when it passes through the diodes of the rectifier bridge. Most of this current goes to charge the battery and to supply the low amperage circuit, and the remainder is sent on to the field windings. The DC current flow through the field windings (wires around an iron core) now increases the strength of the magnetic lines of force. These stronger lines of force now increase the amount of AC current produced in the stator windings. The increased speed of the rotor assembly also increases the current and voltage output of the alternator.The voltage regulator is a solid state (transistor, stationary parts) electronic switch. It feels the voltage in the system and switches on and off many times a second to control the field current (DC current to the field windings) for the alternator to make the needed voltage output.7N9720 Alternator
7N9720 Alternator
(1) Winding. (2) Stator. (3) Rectifier. (4) Rotor. (5) Non-magnetic ring.The alternator is driven by two V-belts. It has a three phase full wave rectified output. The alternator is brushless.The rotor (4) and the bearings are the only moving parts. The 7N9720 Alternator has an output of 37A. The 9G9538 Alternator has an output of 50A.The main parts of the alternator are the stator (2) which has three phase windings, the rectifier (3) which changes the three phase AC to DC and provides excitation current.The field winding (1) is a stationary coil assembly that provides the magnetic field.The rotor provides the north and south poles which cut the magnetic field between the stationary field winding and the stator (2). North and south poles are separated magnetically by a non-magnetic ring (5).9G4574 Alternator
9G4574 Alternator
(1) Fan. (2) Front frame assembly. (3) Stator assembly. (4) Rotor assembly. (5) Field winding (coil assembly). (6) Regulator assembly. (7) Condenser (suppression capacitor). (8) Rectifier assembly. (9) Rear frame assembly.This alternator has three-phase, full-wave rectified output. It is