AC MOTOR, IN PARTICULAR A SQUIRREL-CAGE ROTOR

摘要

Gas-cooled electrical machine having a stator 1 and a rotor 2 mounted in it, with the cooling gas flow being divided into two flow elements, of which one flow element B flows parallel to the rotor axis and the second flow element C flows radially outwards on the end face of the rotor 2. In order to provide measures by means of which the noise emissions can be considerably reduced, devices 13 to produce vortices in the second flow element are provided in the end-face parts of the rotor 2. IMAGE