
480 LIGHT AND HEAVY VEHICLE TECHNOLOGY
Cover Brush gear and Rectifier pack Slip rings
regulator assembly
Figure 28.6 Exploded view of an alternator (Lucas)
3 Slip rings and brushes
4 Rectifier diodes assembly
5 Drive end bracket
6 Slip ring end bracket
7 Output control regulator
8 Drive-belt pulley combined with extractor fan.
The system of regulation required for the alternator is
confined solely to that of a voltage regulator, so as to
maintain a constant safe operating voltage in the elec-
trical system. An alternator is otherwise inherently
self-
limiting as far as current output is concerned. This is
because at high speeds of operation th ...