| 摘要 |
PURPOSE: To provide a flywheel capable of effectively removing the heat generated by an ignition device in a recess. CONSTITUTION: An undersurface 133 of each vane 132 extends from a position at a certain spacing in the angular direction counterclockwise to a tail 134 of an opening 121 from the undersurface of a ring part. The oversurface 135 of the vane extends from the undersurface of the ring part upward to the end part 137 in parallel with the vane under surface 133. The end part 137 is positioned adjacent in the angular direction to the next tip 136 adjoining one opening 121, in such a way that a certain spacing is reserved in the vertical direction. During rotation, by having an oversurface 135 of the vane hit the air, the vane is pushed up in the axial direction and sent into a recess. |
