LIQUID-COOLED ROTOR FOR DYNAMOELECTRIC MACHINES

摘要

A liquid-cooled rotor is provided for large dynamoelectric machines such as turbine generators. Coolant liquid, preferably water, is supplied through a shaft bore and radial passages to a distribution chamber from which it flows to the rotor winding conductors through tubes placed in slots in the surface of the shaft. The water tubes extend under the end turn portions of the rotor winding coils substantially longitudinally to the body portion of the rotor and then radially outward into the spaces between the longitudinal coil sides. The tubes extend back longitudinally through these spaces to the ends of the coils and are connected to the individual turns of the winding near the centers of the circumferential portions of the coils.