Generator Design: Notes

WARNING: This page is about a different car, the 2003 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Cut-Out View Of Generator

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Stator
Rotor with slip rings
Integral fans
Rectifier unit
Voltage regulator

The generator is of AC type, with a built-in charge regulator.

The generator is driven by the engine via a multi-groove belt from the crankshaft pulley.

The gear ratio is 1:2.8 for petrol engines and 1:2.9 for diesels.

Three different generators are available for the Saab 9-3:

90 Ampere
120 Ampere
130 Ampere

The 120 A generator being used in diesel-engined vehicles.