| 摘要 |
PURPOSE:To make maintenance in a cylinder head part ever so easy, by setting up a radiator fan at a side face of the opposite side to the cylinder head, in case of a vertical engine which sets up a crankshaft in a vertical direction. CONSTITUTION:A vertical engine has a crankshaft 6 directed in a vertical direction and supports it free of rotation at a boundary part between a cylinder block 3 and a crank chamber case 4 in an engine body 1. In this case, at a rear surface of the crank chamber case 4, namely, a side face of the opposite side to a cylinder head 2, a cooling water pump 9 is attached to the almost central part. And, a radiator fan 11 and a fan pulley 12 at the front side rotating as one body are attached to a tip part of this pump 9 on the same axis as a driving shaft of the pump 9. A radiator 13 is set up in the front of the radiator fan 11, whereby cooling water inside the radiator 13 is forcibly circulated by the cooling water pump 9 via pipe lines 14-16, etc. |
