COOLING STRUCTURE OF POWER GENERATOR

Japanese Patent JP3806303

B2

PROBLEM TO BE SOLVED: To provide a cooling structure of a power generator which assures effective cooling effect. SOLUTION: A cooling oil cools the inside of an iron core 7 while it is running through a cooling oil path 28 provided within the iron core 7. Moreover, the cooling air cools the inside of the iron core 7 and a rotor 4 while it is passing through a cooling air path 31 within the iron core 7 and a gap 5 between the internal circumference of the iron core 7 and the external circumference of the rotor 4. Therefore, the internal circumference side of a stator 6 and the rotor 4 can be cooled to provide the effective cooling effect. The more effective cooling effect can also be attained with utilizing vaporization latent heat of cooling oil mist by spraying the cooling oil into the cooling air path 31 from the inside of the cooling oil path 28.