| 摘要 |
PURPOSE:To enable a dynamic coil of a stator to be efficiently cooled, by a method wherein a plurality of vent holes are formed on the bottom surface of a fly-wheel and a non-magnetic plate for fixing a magnet to the fly-wheel is provided with a plurality of blades. CONSTITUTION:A fly-wheel 5 is fixed to a drive shaft 4 of an internal combustion engine and a magnet 6 is attached with non-magnetic plates 7, 8 inside the circumference of the fly-wheel, and in a magneto-generator with the magnet 6 confronting to a stator 2 having an armature winding 11, a plurality of vent holes 17 are formed on the bottom surface of the fly-wheel 5 and at suitable intervals in the circumferential direction. And a plurality of blades 18 are provided on one side surface of the non-magnetic plate 7 for fitting the magnet 6, and some of the blades 18 are arranged to confront to the vent holes 17 of the fly- wheel 5. As the result, circulating cooling air is generated according to the rotation of the fly-wheel 5 and the armature winding 11 can be efficiently cooled. |
