COOLING STRUCTURE OF GENERATOR

摘要

A cooling structure of a generator, wherein a cooling oil passes a cooling oil passage (28) inside a core (7) to cool the inside of the core (7), and cooling air passes a cooling air passage (31) inside the core (7) and a clearance (5) between the inner peripheral surface of the core (7) and the outer peripheral surface of a rotor (4) to cool the inside of the core (7) and the rotor (4), whereby the inner peripheral surface of a stator (6) and the rotor (4) can be cooled to provide an effective cooling effect and, when cooling oil is sprayed from the inside of the cooling oil passage (28) into the cooling air passage (31), a more effective cooling effect can be provided by utilizing the vaporization and latent heat of the mist of the cooling oil.