Electric machine e.g. turbine generator, has aperture in insulating coil supporting element between end sections that defines volume open to rotor coil surface and connected to coil's inner peripheral opening

摘要

The machine has a coil inner peripheral opening (15) formed at the inner periphery of the end sections is connected to the cooling fluid and an aperture in the coil supporting element defines a volume open to a rotor coil surface and connected to the coil's inner peripheral opening at the inner coil periphery.