Turbogenerator mit fluessigkeitsgekuehlter Laeuferwicklung

摘要

A liquid cooled rotor for dynamoelectric machines such as large turbine generators in which a coolant liquid is introduced along the shaft axis at one end of the machine, flows through passages in the shaft and rotor body, through passages or ducts in the rotor winding, and is discharged through the shaft axis. The leads to the rotor winding are disposed axially in a center bore of the shaft and provision is made for directing the coolant from the shaft axis to an annular passage around the axial leads to cool the leads as well as to carry the coolant to the central or body part of the rotor. Provisions are also made for liquid cooling of the radial leads to the rotor winding, and corrosion resistant linings are utilized in the coolant passages with provision for permitting thermal expansion of the linings.