INCLINED SINGLE CYLINDER ENGINE

摘要

With an open one side of a crank case (1) having a single inclined cylinder unit (1c) being closed with a side cover (2), a crank shaft (3) is horizontally disposed inside the crank room units (1a, 2a) of the crank case (1) and the side cover (2) and, in positions below the axis line A of the cylinder unit (1c), a balancer shaft (4) in parallel with the crank shaft (3), a cam shaft (5), a lubricating oil pump drive shaft (doubling as a governor drive shaft) (10) and a cooling water pump drive shaft (20) are disposed with the two shafts (10, 20) disposed on the same axis. A crank gear (6) is provided to one side portion of the crank shaft (3), a first balancer gear (7) out of the first balancer gear (7) and a second balancer gear (8) which are kept connected with the balancer shaft (4) meshes with a crank gear (6) and a second balancer gear (8) meshes with a cam gear (9) on the cam shaft (5). The cam gear (9) gear-meshes with the cooling water pump drive shaft (20) and a third balancer gear (19) provided on the portion opposite to the first and second balancer gears (7, 8) on the balancer shaft (4) gear-meshes with the lubricating oil pump drive shaft (10).