Turbo-generator, the rotor of which has a direct liquid-cooled winding

Claim 1

A turbo-generator rotor having a direct liquid-cooled winding with cooling tubes of corrosion-resistant material in the conductor, a corrosion-resistant distributing ring divided internally into sectors, electrically insulating spacing pieces connecting the cooling tubes to the sectors, said sectors including inlet and outlet sectors, the rotor having a shaft and inner and outer tubes of corrosion-resistant material extending axially within the shaft, first and second radial tube arranged in the rotor shaft, the first radial tube being connected to the inner axial tube and the second radial tube being connected to the outer axial tube, said radial tubes and said Axial tubes being arranged substantially without radial play in the rotor shaft, the radial tubes being of equal length, the distributing chamber having an inner wall, the radial tubes being connected at their outer ends in said inner wall, the inner axial tube being sealed at its inner end and having at least one radially extending nozzle connected to one of said axial tubes, said nozzle having a surface part at its free end which engages and seals against a corresponding surface part of the inside wall of the outer axial tube, the other radial tube being connected to the outer axial tube, the outer wall of the distributing ring being provided with a plurality of openings and screw covers mounted therein, said openings being located in radial alignment with the radial tubes and being concentric with the longitudinal axis of the tubes.