METHOD AND APPARATUS FOR ACTIVE COOLING OF INTAKE AIR FOR A HYBRID COOLED BELT STARTER GENERATOR

A cooling system for a belt starter generator, which has at least one housing portion, a plurality of flow apertures integrally formed as part of the housing portion, a heat sink connected to the housing portion, the heat sink cooled by liquid cooling, and a plurality of fins integrally formed as part of the heat sink. A rotor having a shaft is at least partially disposed in the housing portion, and a plurality of slots are integrally formed as part of the rotor. An impeller having a plurality of blades is mounted on the shaft. As the shaft rotates, the rotor and the impeller also rotate, and the blades generate air flow to create a flow path such that air flows between each of the fins, through the flow apertures, and through the slots of the rotor, and through the blades, achieving air cooling of the belt starter generator.