| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an air-cooled engine which can suppress a trouble that refuse such as long cut grass enters a fan case, and also can suppress a trouble that cut pieces of the refuse such as cut grass are blocked between outer teeth and a dust prevention wall. <P>SOLUTION: A blower part 7 which inclines with respect to the rotation direction is provided for the outer tooth 6 so that air 10 is sucked out from a gap 8 between the outer tooth 6 and the dust prevention wall 5 to the outside of the fan case 1 by the rotating blower part 7. A plurality of inner teeth 9 which rotate along the inner circumferential surface of the dust prevention wall 5 can be provided for the peripheral part 4a of a filter plate. <P>COPYRIGHT: (C)2012,JPO&INPIT |
