| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamo-electric machine with hollow rotor which can allow functions such as a runner, an impeller and an blade wheel to be attached. SOLUTION: This dynamo-electric machine is provided with a cylindrical rotor 10 which involves a stator winding 12 wound around its periphery, and a hollow rotor 20 which involves a cylindrical electromagnetic action generating part 22 for generating an electromagnetic action in a space to the stator winding 12. The hollow rotor 20 is provided with the hollow rotor part fitted in the cylindrical stator 10 so as to rotate. Inside the hollow rotor 20, for example, an impeller, blade or screw for fluid transfer or the like may be formed. |
