PUMP DRIVE STRUCTURE OF WATER-COOLED INTERNAL COMBUSTION ENGINE

摘要

To provide a pump drive structure of a water-cooled internal combustion engine in which the number of revolving shafts arranged in parallel in an internal combustion engine is reduced, and a power transmission mechanism is eliminated, so that the internal combustion engine is downsized. The pump drive structure of a water-cooled internal combustion engine in which a balancer shaft is arranged in parallel with a crankshaft at a position where crank webs of the crankshaft and balancer weights are overlapped in the axia l direction, wherein an oil pump drive shaft of an oil pump is connected coaxially at one end of the balancer shaft, and a water pump drive shaft of a water pump is connected coaxially with the other end of the balancer shaft.< /SDOAB>